101 files changed, 354 insertions, 514 deletions
diff --git a/Cargo.lock b/Cargo.lock
index 15ed1da8e..51a07abe3 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -243,6 +243,12 @@ dependencies = [
 ]
 [[package]]
+name = "cov-mark"
+version = "1.1.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "9ffa3d3e0138386cd4361f63537765cac7ee40698028844635a54495a92f67f3"
+[[package]]
 name = "crc32fast"
 version = "1.2.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
@@ -492,6 +498,7 @@ dependencies = [
 "anymap",
 "base_db",
 "cfg",
+ "cov-mark",
 "drop_bomb",
 "either",
 "expect-test",
@@ -538,6 +545,7 @@ dependencies = [
 "chalk-ir",
 "chalk-recursive",
 "chalk-solve",
+ "cov-mark",
 "ena",
 "expect-test",
 "hir_def",
@@ -572,6 +580,7 @@ name = "ide"
 version = "0.0.0"
 dependencies = [
 "cfg",
+ "cov-mark",
 "either",
 "expect-test",
 "hir",
@@ -598,6 +607,7 @@ dependencies = [
 name = "ide_assists"
 version = "0.0.0"
 dependencies = [
+ "cov-mark",
 "either",
 "expect-test",
 "hir",
@@ -616,6 +626,7 @@ name = "ide_completion"
 version = "0.0.0"
 dependencies = [
 "base_db",
+ "cov-mark",
 "either",
 "expect-test",
 "hir",
@@ -635,6 +646,7 @@ name = "ide_db"
 version = "0.0.0"
 dependencies = [
 "base_db",
+ "cov-mark",
 "either",
 "expect-test",
 "fst",
@@ -655,6 +667,7 @@ dependencies = [
 name = "ide_ssr"
 version = "0.0.0"
 dependencies = [
+ "cov-mark",
 "expect-test",
 "hir",
 "ide_db",
@@ -865,6 +878,7 @@ checksum = "7ffc5c5338469d4d3ea17d269fa8ea3512ad247247c30bd2df69e68309ed0a08"
 name = "mbe"
 version = "0.0.0"
 dependencies = [
+ "cov-mark",
 "log",
 "parser",
 "profile",
@@ -1578,6 +1592,7 @@ name = "syntax"
 version = "0.0.0"
 dependencies = [
 "arrayvec",
+ "cov-mark",
 "expect-test",
 "indexmap",
 "itertools",
diff --git a/crates/hir_def/Cargo.toml b/crates/hir_def/Cargo.toml
index 535221294..2f07b6d01 100644
--- a/crates/hir_def/Cargo.toml
+++ b/crates/hir_def/Cargo.toml
@@ -10,6 +10,7 @@ edition = "2018"
 doctest = false
 [dependencies]
+cov-mark = "1.1"
 log = "0.4.8"
 once_cell = "1.3.1"
 rustc-hash = "1.1.0"
diff --git a/crates/hir_def/src/attr.rs b/crates/hir_def/src/attr.rs
index 24ffa6c3a..b716d5f6e 100644
--- a/crates/hir_def/src/attr.rs
+++ b/crates/hir_def/src/attr.rs
@@ -13,7 +13,6 @@ use syntax::{
    ast::{self, AstNode, AttrsOwner},
    match_ast, AstToken, SmolStr, SyntaxNode,
 };
-use test_utils::mark;
 use tt::Subtree;
 use crate::{
@@ -177,7 +176,7 @@ impl RawAttrs {
                if cfg_options.check(&cfg) == Some(false) {
                    None
                } else {
-                    mark::hit!(cfg_attr_active);
+                    cov_mark::hit!(cfg_attr_active);
                    let attr = ast::Attr::parse(&format!("#[{}]", attr)).ok()?;
                    let hygiene = Hygiene::new_unhygienic(); // FIXME
diff --git a/crates/hir_def/src/body.rs b/crates/hir_def/src/body.rs
index 16e1bac40..b1a3fe1cb 100644
--- a/crates/hir_def/src/body.rs
+++ b/crates/hir_def/src/body.rs
@@ -20,7 +20,6 @@ use la_arena::{Arena, ArenaMap};
 use profile::Count;
 use rustc_hash::FxHashMap;
 use syntax::{ast, AstNode, AstPtr};
-use test_utils::mark;
 pub(crate) use lower::LowerCtx;
@@ -105,7 +104,7 @@ impl Expander {
        macro_call: ast::MacroCall,
    ) -> ExpandResult<Option<(Mark, T)>> {
        if self.recursion_limit + 1 > EXPANSION_RECURSION_LIMIT {
-            mark::hit!(your_stack_belongs_to_me);
+            cov_mark::hit!(your_stack_belongs_to_me);
            return ExpandResult::str_err("reached recursion limit during macro expansion".into());
        }
diff --git a/crates/hir_def/src/body/lower.rs b/crates/hir_def/src/body/lower.rs
index 40beb2f7a..d4abe819d 100644
--- a/crates/hir_def/src/body/lower.rs
+++ b/crates/hir_def/src/body/lower.rs
@@ -19,7 +19,6 @@ use syntax::{
    },
    AstNode, AstPtr, SyntaxNodePtr,
 };
-use test_utils::mark;
 use crate::{
    adt::StructKind,
@@ -286,7 +285,7 @@ impl ExprCollector<'_> {
                        None => self.collect_expr_opt(condition.expr()),
                        // if let -- desugar to match
                        Some(pat) => {
-                            mark::hit!(infer_resolve_while_let);
+                            cov_mark::hit!(infer_resolve_while_let);
                            let pat = self.collect_pat(pat);
                            let match_expr = self.collect_expr_opt(condition.expr());
                            let placeholder_pat = self.missing_pat();
diff --git a/crates/hir_def/src/body/scope.rs b/crates/hir_def/src/body/scope.rs
index 210b4a617..1bbb54fc6 100644
--- a/crates/hir_def/src/body/scope.rs
+++ b/crates/hir_def/src/body/scope.rs
@@ -186,7 +186,7 @@ mod tests {
    use base_db::{fixture::WithFixture, FileId, SourceDatabase};
    use hir_expand::{name::AsName, InFile};
    use syntax::{algo::find_node_at_offset, ast, AstNode};
-    use test_utils::{assert_eq_text, extract_offset, mark};
+    use test_utils::{assert_eq_text, extract_offset};
    use crate::{db::DefDatabase, test_db::TestDB, FunctionId, ModuleDefId};
@@ -454,7 +454,7 @@ fn foo() {
    #[test]
    fn while_let_desugaring() {
-        mark::check!(infer_resolve_while_let);
+        cov_mark::check!(infer_resolve_while_let);
        do_check_local_name(
            r#"
 fn test() {
diff --git a/crates/hir_def/src/body/tests.rs b/crates/hir_def/src/body/tests.rs
index bb43569d7..991a32b15 100644
--- a/crates/hir_def/src/body/tests.rs
+++ b/crates/hir_def/src/body/tests.rs
@@ -2,7 +2,6 @@ mod block;
 use base_db::{fixture::WithFixture, SourceDatabase};
 use expect_test::Expect;
-use test_utils::mark;
 use crate::{test_db::TestDB, ModuleDefId};
@@ -48,7 +47,7 @@ fn check_at(ra_fixture: &str, expect: Expect) {
 #[test]
 fn your_stack_belongs_to_me() {
-    mark::check!(your_stack_belongs_to_me);
+    cov_mark::check!(your_stack_belongs_to_me);
    lower(
        "
 macro_rules! n_nuple {
diff --git a/crates/hir_def/src/body/tests/block.rs b/crates/hir_def/src/body/tests/block.rs
index 8bca72a17..3b6ba4cde 100644
--- a/crates/hir_def/src/body/tests/block.rs
+++ b/crates/hir_def/src/body/tests/block.rs
@@ -165,16 +165,16 @@ fn macro_resolve() {
    check_at(
        r#"
 //- /lib.rs crate:lib deps:core
-use core::mark;
+use core::cov_mark;
 fn f() {
    fn nested() {
-        mark::hit!(Hit);
+        cov_mark::hit!(Hit);
        $0
    }
 }
 //- /core.rs crate:core
-pub mod mark {
+pub mod cov_mark {
    #[macro_export]
    macro_rules! _hit {
        ($name:ident) => {
@@ -193,8 +193,8 @@ pub mod mark {
            nested: v
            crate
+            cov_mark: t
            f: v
-            mark: t
        "#]],
    );
 }
@@ -264,7 +264,7 @@ fn main() {
 fn underscore_import() {
    // This used to panic, because the default (private) visibility inside block expressions would
    // point into the containing `DefMap`, which visibilities should never be able to do.
-    mark::check!(adjust_vis_in_block_def_map);
+    cov_mark::check!(adjust_vis_in_block_def_map);
    check_at(
        r#"
 mod m {
diff --git a/crates/hir_def/src/find_path.rs b/crates/hir_def/src/find_path.rs
index 3a98ffbaa..de08e2737 100644
--- a/crates/hir_def/src/find_path.rs
+++ b/crates/hir_def/src/find_path.rs
@@ -4,7 +4,6 @@ use std::iter;
 use hir_expand::name::{known, AsName, Name};
 use rustc_hash::FxHashSet;
-use test_utils::mark;
 use crate::nameres::DefMap;
 use crate::{
@@ -215,7 +214,7 @@ fn find_path_inner(
                    best_path_len - 1,
                    prefixed,
                )?;
-                mark::hit!(partially_imported);
+                cov_mark::hit!(partially_imported);
                path.push_segment(info.path.segments.last().unwrap().clone());
                Some(path)
            })
@@ -235,7 +234,7 @@ fn find_path_inner(
    // that correctly (FIXME).
    if let Some(item_module) = item.as_module_def_id().and_then(|did| did.module(db)) {
        if item_module.def_map(db).block_id().is_some() && prefixed.is_some() {
-            mark::hit!(prefixed_in_block_expression);
+            cov_mark::hit!(prefixed_in_block_expression);
            prefixed = Some(PrefixKind::Plain);
        }
    }
@@ -252,18 +251,18 @@ fn find_path_inner(
 fn select_best_path(old_path: ModPath, new_path: ModPath, prefer_no_std: bool) -> ModPath {
    if old_path.starts_with_std() && new_path.can_start_with_std() {
        if prefer_no_std {
-            mark::hit!(prefer_no_std_paths);
+            cov_mark::hit!(prefer_no_std_paths);
            new_path
        } else {
-            mark::hit!(prefer_std_paths);
+            cov_mark::hit!(prefer_std_paths);
            old_path
        }
    } else if new_path.starts_with_std() && old_path.can_start_with_std() {
        if prefer_no_std {
-            mark::hit!(prefer_no_std_paths);
+            cov_mark::hit!(prefer_no_std_paths);
            old_path
        } else {
-            mark::hit!(prefer_std_paths);
+            cov_mark::hit!(prefer_std_paths);
            new_path
        }
    } else if new_path.len() < old_path.len() {
@@ -364,7 +363,6 @@ mod tests {
    use base_db::fixture::WithFixture;
    use hir_expand::hygiene::Hygiene;
    use syntax::ast::AstNode;
-    use test_utils::mark;
    use crate::test_db::TestDB;
@@ -522,7 +520,7 @@ mod tests {
    #[test]
    fn partially_imported() {
-        mark::check!(partially_imported);
+        cov_mark::check!(partially_imported);
        // Tests that short paths are used even for external items, when parts of the path are
        // already in scope.
        let code = r#"
@@ -686,7 +684,7 @@ mod tests {
    #[test]
    fn prefer_std_paths_over_alloc() {
-        mark::check!(prefer_std_paths);
+        cov_mark::check!(prefer_std_paths);
        let code = r#"
        //- /main.rs crate:main deps:alloc,std
        $0
@@ -712,7 +710,7 @@ mod tests {
    #[test]
    fn prefer_core_paths_over_std() {
-        mark::check!(prefer_no_std_paths);
+        cov_mark::check!(prefer_no_std_paths);
        let code = r#"
        //- /main.rs crate:main deps:core,std
        #![no_std]
@@ -842,7 +840,7 @@ mod tests {
    #[test]
    fn inner_items_from_inner_module() {
-        mark::check!(prefixed_in_block_expression);
+        cov_mark::check!(prefixed_in_block_expression);
        check_found_path(
            r#"
            fn main() {
diff --git a/crates/hir_def/src/import_map.rs b/crates/hir_def/src/import_map.rs
index e1c28bc83..369bc3350 100644
--- a/crates/hir_def/src/import_map.rs
+++ b/crates/hir_def/src/import_map.rs
@@ -8,7 +8,6 @@ use hir_expand::name::Name;
 use indexmap::{map::Entry, IndexMap};
 use itertools::Itertools;
 use rustc_hash::{FxHashSet, FxHasher};
-use test_utils::mark;
 use crate::{
    db::DefDatabase, item_scope::ItemInNs, visibility::Visibility, AssocItemId, ModuleDefId,
@@ -193,7 +192,7 @@ impl ImportMap {
                // cannot use associated type aliases directly: need a `<Struct as Trait>::TypeAlias`
                // qualifier, ergo no need to store it for imports in import_map
                AssocItemId::TypeAliasId(_) => {
-                    mark::hit!(type_aliases_ignored);
+                    cov_mark::hit!(type_aliases_ignored);
                    continue;
                }
            };
@@ -463,7 +462,6 @@ fn item_import_kind(item: ItemInNs) -> Option<ImportKind> {
 mod tests {
    use base_db::{fixture::WithFixture, SourceDatabase, Upcast};
    use expect_test::{expect, Expect};
-    use test_utils::mark;
    use crate::{test_db::TestDB, AssocContainerId, Lookup};
@@ -801,7 +799,7 @@ mod tests {
    #[test]
    fn fuzzy_import_trait_and_assoc_items() {
-        mark::check!(type_aliases_ignored);
+        cov_mark::check!(type_aliases_ignored);
        let ra_fixture = r#"
        //- /main.rs crate:main deps:dep
        //- /dep.rs crate:dep
diff --git a/crates/hir_def/src/item_scope.rs b/crates/hir_def/src/item_scope.rs
index 4e5daa2ff..919933813 100644
--- a/crates/hir_def/src/item_scope.rs
+++ b/crates/hir_def/src/item_scope.rs
@@ -9,7 +9,6 @@ use hir_expand::MacroDefKind;
 use once_cell::sync::Lazy;
 use rustc_hash::{FxHashMap, FxHashSet};
 use stdx::format_to;
-use test_utils::mark;
 use crate::{
    db::DefDatabase, per_ns::PerNs, visibility::Visibility, AdtId, BuiltinType, ImplId,
@@ -237,7 +236,7 @@ impl ItemScope {
                        if $glob_imports.$field.contains(&$lookup)
                            && matches!($def_import_type, ImportType::Named) =>
                    {
-                        mark::hit!(import_shadowed);
+                        cov_mark::hit!(import_shadowed);
                        $glob_imports.$field.remove(&$lookup);
                        if let Some(fld) = $def.$field {
                            entry.insert(fld);
diff --git a/crates/hir_def/src/item_tree.rs b/crates/hir_def/src/item_tree.rs
index 3233b1957..6bb334573 100644
--- a/crates/hir_def/src/item_tree.rs
+++ b/crates/hir_def/src/item_tree.rs
@@ -25,7 +25,6 @@ use profile::Count;
 use rustc_hash::FxHashMap;
 use smallvec::SmallVec;
 use syntax::{ast, match_ast, SyntaxKind};
-use test_utils::mark;
 use crate::{
    attr::{Attrs, RawAttrs},
diff --git a/crates/hir_def/src/item_tree/lower.rs b/crates/hir_def/src/item_tree/lower.rs
index 8f2f0b340..240fdacf9 100644
--- a/crates/hir_def/src/item_tree/lower.rs
+++ b/crates/hir_def/src/item_tree/lower.rs
@@ -466,7 +466,7 @@ impl Ctx {
                            .collect()
                    })
                    .unwrap_or_else(|| {
-                        mark::hit!(name_res_works_for_broken_modules);
+                        cov_mark::hit!(name_res_works_for_broken_modules);
                        Box::new([]) as Box<[_]>
                    }),
            }
diff --git a/crates/hir_def/src/nameres/collector.rs b/crates/hir_def/src/nameres/collector.rs
index e51d89b43..3bb69d935 100644
--- a/crates/hir_def/src/nameres/collector.rs
+++ b/crates/hir_def/src/nameres/collector.rs
@@ -18,7 +18,6 @@ use hir_expand::{
 use hir_expand::{InFile, MacroCallLoc};
 use rustc_hash::{FxHashMap, FxHashSet};
 use syntax::ast;
-use test_utils::mark;
 use tt::{Leaf, TokenTree};
 use crate::{
@@ -462,7 +461,7 @@ impl DefCollector<'_> {
        let res = self.def_map.resolve_name_in_extern_prelude(&extern_crate.name);
        if let Some(ModuleDefId::ModuleId(m)) = res.take_types() {
-            mark::hit!(macro_rules_from_other_crates_are_visible_with_macro_use);
+            cov_mark::hit!(macro_rules_from_other_crates_are_visible_with_macro_use);
            self.import_all_macros_exported(current_module_id, m.krate);
        }
    }
@@ -571,10 +570,10 @@ impl DefCollector<'_> {
            match def.take_types() {
                Some(ModuleDefId::ModuleId(m)) => {
                    if import.is_prelude {
-                        mark::hit!(std_prelude);
+                        cov_mark::hit!(std_prelude);
                        self.def_map.prelude = Some(m);
                    } else if m.krate != self.def_map.krate {
-                        mark::hit!(glob_across_crates);
+                        cov_mark::hit!(glob_across_crates);
                        // glob import from other crate => we can just import everything once
                        let item_map = m.def_map(self.db);
                        let scope = &item_map[m.local_id].scope;
@@ -626,7 +625,7 @@ impl DefCollector<'_> {
                    }
                }
                Some(ModuleDefId::AdtId(AdtId::EnumId(e))) => {
-                    mark::hit!(glob_enum);
+                    cov_mark::hit!(glob_enum);
                    // glob import from enum => just import all the variants
                    // XXX: urgh, so this works by accident! Here, we look at
@@ -675,7 +674,7 @@ impl DefCollector<'_> {
                    self.update(module_id, &[(name, def)], vis, ImportType::Named);
                }
-                None => mark::hit!(bogus_paths),
+                None => cov_mark::hit!(bogus_paths),
            }
        }
    }
@@ -738,7 +737,7 @@ impl DefCollector<'_> {
                            if max_vis == old_vis {
                                false
                            } else {
-                                mark::hit!(upgrade_underscore_visibility);
+                                cov_mark::hit!(upgrade_underscore_visibility);
                                true
                            }
                        }
@@ -866,7 +865,7 @@ impl DefCollector<'_> {
        depth: usize,
    ) {
        if depth > EXPANSION_DEPTH_LIMIT {
-            mark::hit!(macro_expansion_overflow);
+            cov_mark::hit!(macro_expansion_overflow);
            log::warn!("macro expansion is too deep");
            return;
        }
@@ -1009,7 +1008,7 @@ impl ModCollector<'_, '_> {
        // Prelude module is always considered to be `#[macro_use]`.
        if let Some(prelude_module) = self.def_collector.def_map.prelude {
            if prelude_module.krate != self.def_collector.def_map.krate {
-                mark::hit!(prelude_is_macro_use);
+                cov_mark::hit!(prelude_is_macro_use);
                self.def_collector.import_all_macros_exported(self.module_id, prelude_module.krate);
            }
        }
diff --git a/crates/hir_def/src/nameres/mod_resolution.rs b/crates/hir_def/src/nameres/mod_resolution.rs
index af3262439..d5de9899c 100644
--- a/crates/hir_def/src/nameres/mod_resolution.rs
+++ b/crates/hir_def/src/nameres/mod_resolution.rs
@@ -2,7 +2,6 @@
 use base_db::{AnchoredPath, FileId};
 use hir_expand::name::Name;
 use syntax::SmolStr;
-use test_utils::mark;
 use crate::{db::DefDatabase, HirFileId};
@@ -28,7 +27,7 @@ impl ModDir {
        let depth = self.depth + 1;
        if depth > MOD_DEPTH_LIMIT {
            log::error!("MOD_DEPTH_LIMIT exceeded");
-            mark::hit!(circular_mods);
+            cov_mark::hit!(circular_mods);
            return None;
        }
        Some(ModDir { dir_path, root_non_dir_owner, depth })
diff --git a/crates/hir_def/src/nameres/path_resolution.rs b/crates/hir_def/src/nameres/path_resolution.rs
index dd1db0094..8258dcffb 100644
--- a/crates/hir_def/src/nameres/path_resolution.rs
+++ b/crates/hir_def/src/nameres/path_resolution.rs
@@ -13,7 +13,6 @@
 use base_db::Edition;
 use hir_expand::name;
 use hir_expand::name::Name;
-use test_utils::mark;
 use crate::{
    db::DefDatabase,
@@ -63,7 +62,7 @@ impl ResolvePathResult {
 impl DefMap {
    pub(super) fn resolve_name_in_extern_prelude(&self, name: &Name) -> PerNs {
        if name == &name!(self) {
-            mark::hit!(extern_crate_self_as);
+            cov_mark::hit!(extern_crate_self_as);
            return PerNs::types(self.module_id(self.root).into(), Visibility::Public);
        }
        self.extern_prelude
@@ -101,7 +100,7 @@ impl DefMap {
        // DefMap they're written in, so we restrict them when that happens.
        if let Visibility::Module(m) = vis {
            if self.block_id() != m.block {
-                mark::hit!(adjust_vis_in_block_def_map);
+                cov_mark::hit!(adjust_vis_in_block_def_map);
                vis = Visibility::Module(self.module_id(self.root()));
                log::debug!("visibility {:?} points outside DefMap, adjusting to {:?}", m, vis);
            }
@@ -169,12 +168,12 @@ impl DefMap {
        let mut curr_per_ns: PerNs = match path.kind {
            PathKind::DollarCrate(krate) => {
                if krate == self.krate {
-                    mark::hit!(macro_dollar_crate_self);
+                    cov_mark::hit!(macro_dollar_crate_self);
                    PerNs::types(self.crate_root(db).into(), Visibility::Public)
                } else {
                    let def_map = db.crate_def_map(krate);
                    let module = def_map.module_id(def_map.root);
-                    mark::hit!(macro_dollar_crate_other);
+                    cov_mark::hit!(macro_dollar_crate_other);
                    PerNs::types(module.into(), Visibility::Public)
                }
            }
@@ -310,7 +309,7 @@ impl DefMap {
                }
                ModuleDefId::AdtId(AdtId::EnumId(e)) => {
                    // enum variant
-                    mark::hit!(can_import_enum_variant);
+                    cov_mark::hit!(can_import_enum_variant);
                    let enum_data = db.enum_data(e);
                    match enum_data.variant(&segment) {
                        Some(local_id) => {
diff --git a/crates/hir_def/src/nameres/tests.rs b/crates/hir_def/src/nameres/tests.rs
index bd3e2701b..de3aa4f9a 100644
--- a/crates/hir_def/src/nameres/tests.rs
+++ b/crates/hir_def/src/nameres/tests.rs
@@ -9,7 +9,6 @@ use std::sync::Arc;
 use base_db::{fixture::WithFixture, SourceDatabase};
 use expect_test::{expect, Expect};
-use test_utils::mark;
 use crate::{db::DefDatabase, test_db::TestDB};
@@ -136,7 +135,7 @@ mod m {
 #[test]
 fn bogus_paths() {
-    mark::check!(bogus_paths);
+    cov_mark::check!(bogus_paths);
    check(
        r#"
 //- /lib.rs
@@ -243,7 +242,7 @@ pub struct Baz;
 #[test]
 fn std_prelude() {
-    mark::check!(std_prelude);
+    cov_mark::check!(std_prelude);
    check(
        r#"
 //- /main.rs crate:main deps:test_crate
@@ -267,7 +266,7 @@ pub enum Foo { Bar, Baz };
 #[test]
 fn can_import_enum_variant() {
-    mark::check!(can_import_enum_variant);
+    cov_mark::check!(can_import_enum_variant);
    check(
        r#"
 enum E { V }
@@ -628,7 +627,7 @@ use crate::reex::*;
 #[test]
 fn underscore_pub_crate_reexport() {
-    mark::check!(upgrade_underscore_visibility);
+    cov_mark::check!(upgrade_underscore_visibility);
    check(
        r#"
 //- /main.rs crate:main deps:lib
diff --git a/crates/hir_def/src/nameres/tests/diagnostics.rs b/crates/hir_def/src/nameres/tests/diagnostics.rs
index e8e72e5ef..d5ef8ceb5 100644
--- a/crates/hir_def/src/nameres/tests/diagnostics.rs
+++ b/crates/hir_def/src/nameres/tests/diagnostics.rs
@@ -1,5 +1,4 @@
 use base_db::fixture::WithFixture;
-use test_utils::mark;
 use crate::test_db::TestDB;
@@ -63,7 +62,7 @@ fn unresolved_extern_crate() {
 #[test]
 fn extern_crate_self_as() {
-    mark::check!(extern_crate_self_as);
+    cov_mark::check!(extern_crate_self_as);
    check_diagnostics(
        r"
        //- /lib.rs
@@ -140,7 +139,7 @@ fn inactive_item() {
 /// Tests that `cfg` attributes behind `cfg_attr` is handled properly.
 #[test]
 fn inactive_via_cfg_attr() {
-    mark::check!(cfg_attr_active);
+    cov_mark::check!(cfg_attr_active);
    check_diagnostics(
        r#"
        //- /lib.rs
diff --git a/crates/hir_def/src/nameres/tests/globs.rs b/crates/hir_def/src/nameres/tests/globs.rs
index 2ae836e3c..17426d54d 100644
--- a/crates/hir_def/src/nameres/tests/globs.rs
+++ b/crates/hir_def/src/nameres/tests/globs.rs
@@ -148,7 +148,7 @@ pub(crate) struct PubCrateStruct;
 #[test]
 fn glob_across_crates() {
-    mark::check!(glob_across_crates);
+    cov_mark::check!(glob_across_crates);
    check(
        r#"
 //- /main.rs crate:main deps:test_crate
@@ -184,7 +184,7 @@ struct Foo;
 #[test]
 fn glob_enum() {
-    mark::check!(glob_enum);
+    cov_mark::check!(glob_enum);
    check(
        r#"
 enum Foo { Bar, Baz }
@@ -201,7 +201,7 @@ use self::Foo::*;
 #[test]
 fn glob_enum_group() {
-    mark::check!(glob_enum_group);
+    cov_mark::check!(glob_enum_group);
    check(
        r#"
 enum Foo { Bar, Baz }
@@ -218,7 +218,7 @@ use self::Foo::{*};
 #[test]
 fn glob_shadowed_def() {
-    mark::check!(import_shadowed);
+    cov_mark::check!(import_shadowed);
    check(
        r#"
 //- /lib.rs
diff --git a/crates/hir_def/src/nameres/tests/macros.rs b/crates/hir_def/src/nameres/tests/macros.rs
index 36ed5e8ce..f65a655bf 100644
--- a/crates/hir_def/src/nameres/tests/macros.rs
+++ b/crates/hir_def/src/nameres/tests/macros.rs
@@ -210,7 +210,7 @@ macro_rules! bar {
 #[test]
 fn macro_rules_from_other_crates_are_visible_with_macro_use() {
-    mark::check!(macro_rules_from_other_crates_are_visible_with_macro_use);
+    cov_mark::check!(macro_rules_from_other_crates_are_visible_with_macro_use);
    check(
        r#"
 //- /main.rs crate:main deps:foo
@@ -260,7 +260,7 @@ mod priv_mod {
 #[test]
 fn prelude_is_macro_use() {
-    mark::check!(prelude_is_macro_use);
+    cov_mark::check!(prelude_is_macro_use);
    check(
        r#"
 //- /main.rs crate:main deps:foo
@@ -550,7 +550,7 @@ mod m {
 #[test]
 fn macro_dollar_crate_is_correct_in_item() {
-    mark::check!(macro_dollar_crate_self);
+    cov_mark::check!(macro_dollar_crate_self);
    check(
        r#"
 //- /main.rs crate:main deps:foo
@@ -608,7 +608,7 @@ struct Baz;
 #[test]
 fn macro_dollar_crate_is_correct_in_indirect_deps() {
-    mark::check!(macro_dollar_crate_other);
+    cov_mark::check!(macro_dollar_crate_other);
    // From std
    check(
        r#"
@@ -686,7 +686,7 @@ pub trait Clone {}
 #[test]
 fn macro_expansion_overflow() {
-    mark::check!(macro_expansion_overflow);
+    cov_mark::check!(macro_expansion_overflow);
    check(
        r#"
 macro_rules! a {
diff --git a/crates/hir_def/src/nameres/tests/mod_resolution.rs b/crates/hir_def/src/nameres/tests/mod_resolution.rs
index e80b593aa..dfbbad1f9 100644
--- a/crates/hir_def/src/nameres/tests/mod_resolution.rs
+++ b/crates/hir_def/src/nameres/tests/mod_resolution.rs
@@ -2,7 +2,7 @@ use super::*;
 #[test]
 fn name_res_works_for_broken_modules() {
-    mark::check!(name_res_works_for_broken_modules);
+    cov_mark::check!(name_res_works_for_broken_modules);
    check(
        r"
 //- /lib.rs
@@ -774,7 +774,7 @@ struct X;
 #[test]
 fn circular_mods() {
-    mark::check!(circular_mods);
+    cov_mark::check!(circular_mods);
    compute_crate_def_map(
        r#"
 //- /lib.rs
diff --git a/crates/hir_def/src/path/lower/lower_use.rs b/crates/hir_def/src/path/lower/lower_use.rs
index d584b0b70..e2965b033 100644
--- a/crates/hir_def/src/path/lower/lower_use.rs
+++ b/crates/hir_def/src/path/lower/lower_use.rs
@@ -6,7 +6,6 @@ use std::iter;
 use either::Either;
 use hir_expand::{hygiene::Hygiene, name::AsName};
 use syntax::ast::{self, NameOwner};
-use test_utils::mark;
 use crate::path::{ImportAlias, ModPath, PathKind};
@@ -54,7 +53,7 @@ pub(crate) fn lower_use_tree(
        // FIXME: report errors somewhere
        // We get here if we do
        } else if is_glob {
-            mark::hit!(glob_enum_group);
+            cov_mark::hit!(glob_enum_group);
            if let Some(prefix) = prefix {
                cb(prefix, &tree, is_glob, None)
            }
diff --git a/crates/hir_ty/Cargo.toml b/crates/hir_ty/Cargo.toml
index 1127eef05..6131ebee8 100644
--- a/crates/hir_ty/Cargo.toml
+++ b/crates/hir_ty/Cargo.toml
@@ -10,6 +10,7 @@ edition = "2018"
 doctest = false
 [dependencies]
+cov-mark = "1.1"
 itertools = "0.10.0"
 arrayvec = "0.5.1"
 smallvec = "1.2.0"
diff --git a/crates/hir_ty/src/diagnostics/decl_check.rs b/crates/hir_ty/src/diagnostics/decl_check.rs
index 6773ddea3..e230f9765 100644
--- a/crates/hir_ty/src/diagnostics/decl_check.rs
+++ b/crates/hir_ty/src/diagnostics/decl_check.rs
@@ -28,7 +28,6 @@ use syntax::{
    ast::{self, NameOwner},
    AstNode, AstPtr,
 };
-use test_utils::mark;
 use crate::{
    db::HirDatabase,
@@ -93,7 +92,7 @@ impl<'a, 'b> DeclValidator<'a, 'b> {
    fn validate_func(&mut self, func: FunctionId) {
        let data = self.db.function_data(func);
        if data.is_extern {
-            mark::hit!(extern_func_incorrect_case_ignored);
+            cov_mark::hit!(extern_func_incorrect_case_ignored);
            return;
        }
@@ -625,7 +624,7 @@ impl<'a, 'b> DeclValidator<'a, 'b> {
    fn validate_static(&mut self, static_id: StaticId) {
        let data = self.db.static_data(static_id);
        if data.is_extern {
-            mark::hit!(extern_static_incorrect_case_ignored);
+            cov_mark::hit!(extern_static_incorrect_case_ignored);
            return;
        }
@@ -673,8 +672,6 @@ impl<'a, 'b> DeclValidator<'a, 'b> {
 #[cfg(test)]
 mod tests {
-    use test_utils::mark;
    use crate::diagnostics::tests::check_diagnostics;
    #[test]
@@ -889,8 +886,8 @@ fn main() {
    #[test]
    fn ignores_extern_items() {
-        mark::check!(extern_func_incorrect_case_ignored);
+        cov_mark::check!(extern_func_incorrect_case_ignored);
-        mark::check!(extern_static_incorrect_case_ignored);
+        cov_mark::check!(extern_static_incorrect_case_ignored);
        check_diagnostics(
            r#"
 extern {
diff --git a/crates/hir_ty/src/infer/coerce.rs b/crates/hir_ty/src/infer/coerce.rs
index cf0a3add4..7e8846f27 100644
--- a/crates/hir_ty/src/infer/coerce.rs
+++ b/crates/hir_ty/src/infer/coerce.rs
@@ -6,7 +6,6 @@
 use chalk_ir::{Mutability, TyVariableKind};
 use hir_def::lang_item::LangItemTarget;
-use test_utils::mark;
 use crate::{autoderef, traits::Solution, Obligation, Substs, TraitRef, Ty};
@@ -35,7 +34,7 @@ impl<'a> InferenceContext<'a> {
            ty1.clone()
        } else {
            if let (Ty::FnDef(..), Ty::FnDef(..)) = (ty1, ty2) {
-                mark::hit!(coerce_fn_reification);
+                cov_mark::hit!(coerce_fn_reification);
                // Special case: two function types. Try to coerce both to
                // pointers to have a chance at getting a match. See
                // https://github.com/rust-lang/rust/blob/7b805396bf46dce972692a6846ce2ad8481c5f85/src/librustc_typeck/check/coercion.rs#L877-L916
@@ -45,7 +44,7 @@ impl<'a> InferenceContext<'a> {
                let ptr_ty2 = Ty::fn_ptr(sig2);
                self.coerce_merge_branch(&ptr_ty1, &ptr_ty2)
            } else {
-                mark::hit!(coerce_merge_fail_fallback);
+                cov_mark::hit!(coerce_merge_fail_fallback);
                ty1.clone()
            }
        }
diff --git a/crates/hir_ty/src/infer/expr.rs b/crates/hir_ty/src/infer/expr.rs
index ec2c13154..262177ffb 100644
--- a/crates/hir_ty/src/infer/expr.rs
+++ b/crates/hir_ty/src/infer/expr.rs
@@ -12,7 +12,6 @@ use hir_def::{
 };
 use hir_expand::name::{name, Name};
 use syntax::ast::RangeOp;
-use test_utils::mark;
 use crate::{
    autoderef,
@@ -565,7 +564,7 @@ impl<'a> InferenceContext<'a> {
                    let ret = op::binary_op_return_ty(*op, lhs_ty.clone(), rhs_ty.clone());
                    if ret == Ty::Unknown {
-                        mark::hit!(infer_expr_inner_binary_operator_overload);
+                        cov_mark::hit!(infer_expr_inner_binary_operator_overload);
                        self.resolve_associated_type_with_params(
                            lhs_ty,
diff --git a/crates/hir_ty/src/infer/pat.rs b/crates/hir_ty/src/infer/pat.rs
index 987793e2e..a0ac8d80f 100644
--- a/crates/hir_ty/src/infer/pat.rs
+++ b/crates/hir_ty/src/infer/pat.rs
@@ -10,7 +10,6 @@ use hir_def::{
    FieldId,
 };
 use hir_expand::name::Name;
-use test_utils::mark;
 use super::{BindingMode, Expectation, InferenceContext};
 use crate::{lower::lower_to_chalk_mutability, utils::variant_data, Substs, Ty};
@@ -108,7 +107,7 @@ impl<'a> InferenceContext<'a> {
                }
            }
        } else if let Pat::Ref { .. } = &body[pat] {
-            mark::hit!(match_ergonomics_ref);
+            cov_mark::hit!(match_ergonomics_ref);
            // When you encounter a `&pat` pattern, reset to Move.
            // This is so that `w` is by value: `let (_, &w) = &(1, &2);`
            default_bm = BindingMode::Move;
diff --git a/crates/hir_ty/src/infer/unify.rs b/crates/hir_ty/src/infer/unify.rs
index 99a89a7f3..54fcfed10 100644
--- a/crates/hir_ty/src/infer/unify.rs
+++ b/crates/hir_ty/src/infer/unify.rs
@@ -5,8 +5,6 @@ use std::borrow::Cow;
 use chalk_ir::{FloatTy, IntTy, TyVariableKind};
 use ena::unify::{InPlaceUnificationTable, NoError, UnifyKey, UnifyValue};
-use test_utils::mark;
 use super::{InferenceContext, Obligation};
 use crate::{
    BoundVar, Canonical, DebruijnIndex, GenericPredicate, InEnvironment, InferenceVar, Scalar,
@@ -387,7 +385,7 @@ impl InferenceTable {
        // more than once
        for i in 0..3 {
            if i > 0 {
-                mark::hit!(type_var_resolves_to_int_var);
+                cov_mark::hit!(type_var_resolves_to_int_var);
            }
            match &*ty {
                Ty::InferenceVar(tv, _) => {
@@ -416,7 +414,7 @@ impl InferenceTable {
            Ty::InferenceVar(tv, kind) => {
                let inner = tv.to_inner();
                if tv_stack.contains(&inner) {
-                    mark::hit!(type_var_cycles_resolve_as_possible);
+                    cov_mark::hit!(type_var_cycles_resolve_as_possible);
                    // recursive type
                    return self.type_variable_table.fallback_value(tv, kind);
                }
@@ -443,7 +441,7 @@ impl InferenceTable {
            Ty::InferenceVar(tv, kind) => {
                let inner = tv.to_inner();
                if tv_stack.contains(&inner) {
-                    mark::hit!(type_var_cycles_resolve_completely);
+                    cov_mark::hit!(type_var_cycles_resolve_completely);
                    // recursive type
                    return self.type_variable_table.fallback_value(tv, kind);
                }
diff --git a/crates/hir_ty/src/lower.rs b/crates/hir_ty/src/lower.rs
index 5fe5b8ad1..b90fdc382 100644
--- a/crates/hir_ty/src/lower.rs
+++ b/crates/hir_ty/src/lower.rs
@@ -24,7 +24,6 @@ use hir_expand::name::Name;
 use la_arena::ArenaMap;
 use smallvec::SmallVec;
 use stdx::impl_from;
-use test_utils::mark;
 use crate::{
    db::HirDatabase,
@@ -760,7 +759,7 @@ fn assoc_type_bindings_from_type_bound<'a>(
 impl ReturnTypeImplTrait {
    fn from_hir(ctx: &TyLoweringContext, bounds: &[TypeBound]) -> Self {
-        mark::hit!(lower_rpit);
+        cov_mark::hit!(lower_rpit);
        let self_ty = Ty::BoundVar(BoundVar::new(DebruijnIndex::INNERMOST, 0));
        let predicates = ctx.with_shifted_in(DebruijnIndex::ONE, |ctx| {
            bounds
@@ -935,7 +934,7 @@ impl TraitEnvironment {
                // add `Self: Trait<T1, T2, ...>` to the environment in trait
                // function default implementations (and hypothetical code
                // inside consts or type aliases)
-                test_utils::mark::hit!(trait_self_implements_self);
+                cov_mark::hit!(trait_self_implements_self);
                let substs = Substs::type_params(db, trait_id);
                let trait_ref = TraitRef { trait_: trait_id, substs };
                let pred = GenericPredicate::Implemented(trait_ref);
diff --git a/crates/hir_ty/src/method_resolution.rs b/crates/hir_ty/src/method_resolution.rs
index dfcf346fb..24db33c49 100644
--- a/crates/hir_ty/src/method_resolution.rs
+++ b/crates/hir_ty/src/method_resolution.rs
@@ -588,7 +588,7 @@ fn iterate_inherent_methods(
                // already happens in `is_valid_candidate` above; if not, we
                // check it here
                if receiver_ty.is_none() && inherent_impl_substs(db, impl_def, self_ty).is_none() {
-                    test_utils::mark::hit!(impl_self_type_match_without_receiver);
+                    cov_mark::hit!(impl_self_type_match_without_receiver);
                    continue;
                }
                if callback(&self_ty.value, item) {
diff --git a/crates/hir_ty/src/tests/coercion.rs b/crates/hir_ty/src/tests/coercion.rs
index 7bc6c79f3..63d9d4e0b 100644
--- a/crates/hir_ty/src/tests/coercion.rs
+++ b/crates/hir_ty/src/tests/coercion.rs
@@ -1,5 +1,4 @@
 use expect_test::expect;
-use test_utils::mark;
 use super::{check_infer, check_infer_with_mismatches};
@@ -381,7 +380,7 @@ fn infer_match_second_coerce() {
 #[test]
 fn coerce_merge_one_by_one1() {
-    mark::check!(coerce_merge_fail_fallback);
+    cov_mark::check!(coerce_merge_fail_fallback);
    check_infer(
        r"
@@ -589,7 +588,7 @@ fn coerce_fn_item_to_fn_ptr() {
 #[test]
 fn coerce_fn_items_in_match_arms() {
-    mark::check!(coerce_fn_reification);
+    cov_mark::check!(coerce_fn_reification);
    check_infer_with_mismatches(
        r"
diff --git a/crates/hir_ty/src/tests/method_resolution.rs b/crates/hir_ty/src/tests/method_resolution.rs
index a9901d7b8..4e3f9a9b6 100644
--- a/crates/hir_ty/src/tests/method_resolution.rs
+++ b/crates/hir_ty/src/tests/method_resolution.rs
@@ -913,7 +913,7 @@ fn test() { S2.into(); }
 #[test]
 fn method_resolution_overloaded_method() {
-    test_utils::mark::check!(impl_self_type_match_without_receiver);
+    cov_mark::check!(impl_self_type_match_without_receiver);
    check_types(
        r#"
 struct Wrapper<T>(T);
diff --git a/crates/hir_ty/src/tests/patterns.rs b/crates/hir_ty/src/tests/patterns.rs
index 2053d8f56..5da19ba5f 100644
--- a/crates/hir_ty/src/tests/patterns.rs
+++ b/crates/hir_ty/src/tests/patterns.rs
@@ -1,5 +1,4 @@
 use expect_test::expect;
-use test_utils::mark;
 use super::{check_infer, check_infer_with_mismatches};
@@ -197,7 +196,7 @@ fn infer_pattern_match_ergonomics() {
 #[test]
 fn infer_pattern_match_ergonomics_ref() {
-    mark::check!(match_ergonomics_ref);
+    cov_mark::check!(match_ergonomics_ref);
    check_infer(
        r#"
        fn test() {
diff --git a/crates/hir_ty/src/tests/regression.rs b/crates/hir_ty/src/tests/regression.rs
index cffe8630b..69314e245 100644
--- a/crates/hir_ty/src/tests/regression.rs
+++ b/crates/hir_ty/src/tests/regression.rs
@@ -1,5 +1,4 @@
 use expect_test::expect;
-use test_utils::mark;
 use super::{check_infer, check_types};
@@ -87,8 +86,8 @@ fn bug_651() {
 #[test]
 fn recursive_vars() {
-    mark::check!(type_var_cycles_resolve_completely);
+    cov_mark::check!(type_var_cycles_resolve_completely);
-    mark::check!(type_var_cycles_resolve_as_possible);
+    cov_mark::check!(type_var_cycles_resolve_as_possible);
    check_infer(
        r#"
        fn test() {
@@ -166,7 +165,7 @@ fn infer_std_crash_1() {
 #[test]
 fn infer_std_crash_2() {
-    mark::check!(type_var_resolves_to_int_var);
+    cov_mark::check!(type_var_resolves_to_int_var);
    // caused "equating two type variables, ...", taken from std
    check_infer(
        r#"
diff --git a/crates/hir_ty/src/tests/simple.rs b/crates/hir_ty/src/tests/simple.rs
index 2947857a5..f5069eba5 100644
--- a/crates/hir_ty/src/tests/simple.rs
+++ b/crates/hir_ty/src/tests/simple.rs
@@ -1,5 +1,4 @@
 use expect_test::expect;
-use test_utils::mark;
 use super::{check_infer, check_types};
@@ -2314,7 +2313,7 @@ fn generic_default_depending_on_other_type_arg_forward() {
 #[test]
 fn infer_operator_overload() {
-    mark::check!(infer_expr_inner_binary_operator_overload);
+    cov_mark::check!(infer_expr_inner_binary_operator_overload);
    check_infer(
        r#"
diff --git a/crates/hir_ty/src/tests/traits.rs b/crates/hir_ty/src/tests/traits.rs
index 1298e5a88..528092082 100644
--- a/crates/hir_ty/src/tests/traits.rs
+++ b/crates/hir_ty/src/tests/traits.rs
@@ -1,5 +1,4 @@
 use expect_test::expect;
-use test_utils::mark;
 use super::{check_infer, check_infer_with_mismatches, check_types};
@@ -319,7 +318,7 @@ fn infer_from_bound_2() {
 #[test]
 fn trait_default_method_self_bound_implements_trait() {
-    mark::check!(trait_self_implements_self);
+    cov_mark::check!(trait_self_implements_self);
    check_infer(
        r#"
        trait Trait {
@@ -1189,7 +1188,7 @@ fn impl_trait() {
 #[test]
 fn simple_return_pos_impl_trait() {
-    mark::check!(lower_rpit);
+    cov_mark::check!(lower_rpit);
    check_infer(
        r#"
        trait Trait<T> {
diff --git a/crates/ide/Cargo.toml b/crates/ide/Cargo.toml
index f6aaaeda4..f7c5efaf3 100644
--- a/crates/ide/Cargo.toml
+++ b/crates/ide/Cargo.toml
@@ -10,6 +10,7 @@ edition = "2018"
 doctest = false
 [dependencies]
+cov-mark = "1.1"
 either = "1.5.3"
 indexmap = "1.4.0"
 itertools = "0.10.0"
diff --git a/crates/ide/src/hover.rs b/crates/ide/src/hover.rs
index a9454cfa3..5d1cc2052 100644
--- a/crates/ide/src/hover.rs
+++ b/crates/ide/src/hover.rs
@@ -11,7 +11,6 @@ use ide_db::{
 use itertools::Itertools;
 use stdx::format_to;
 use syntax::{ast, match_ast, AstNode, SyntaxKind::*, SyntaxToken, TokenAtOffset, T};
-use test_utils::mark;
 use crate::{
    display::{macro_label, ShortLabel, TryToNav},
@@ -193,8 +192,8 @@ fn runnable_action(
            ModuleDef::Function(func) => {
                let src = func.source(sema.db)?;
                if src.file_id != file_id.into() {
-                    mark::hit!(hover_macro_generated_struct_fn_doc_comment);
+                    cov_mark::hit!(hover_macro_generated_struct_fn_doc_comment);
-                    mark::hit!(hover_macro_generated_struct_fn_doc_attr);
+                    cov_mark::hit!(hover_macro_generated_struct_fn_doc_attr);
                    return None;
                }
@@ -2101,7 +2100,7 @@ pub fn fo$0o() {}
    #[test]
    fn test_hover_macro_generated_struct_fn_doc_comment() {
-        mark::check!(hover_macro_generated_struct_fn_doc_comment);
+        cov_mark::check!(hover_macro_generated_struct_fn_doc_comment);
        check(
            r#"
@@ -2139,7 +2138,7 @@ fn foo() { let bar = Bar; bar.fo$0o(); }
    #[test]
    fn test_hover_macro_generated_struct_fn_doc_attr() {
-        mark::check!(hover_macro_generated_struct_fn_doc_attr);
+        cov_mark::check!(hover_macro_generated_struct_fn_doc_attr);
        check(
            r#"
diff --git a/crates/ide/src/join_lines.rs b/crates/ide/src/join_lines.rs
index 7fcae13e0..20a920ddb 100644
--- a/crates/ide/src/join_lines.rs
+++ b/crates/ide/src/join_lines.rs
@@ -7,7 +7,7 @@ use syntax::{
    SyntaxKind::{self, USE_TREE, WHITESPACE},
    SyntaxNode, SyntaxToken, TextRange, TextSize, T,
 };
-use test_utils::mark;
 use text_edit::{TextEdit, TextEditBuilder};
 // Feature: Join Lines
@@ -60,7 +60,7 @@ fn remove_newline(edit: &mut TextEditBuilder, token: &SyntaxToken, offset: TextS
        let mut string_open_quote = false;
        if let Some(string) = ast::String::cast(token.clone()) {
            if let Some(range) = string.open_quote_text_range() {
-                mark::hit!(join_string_literal);
+                cov_mark::hit!(join_string_literal);
                string_open_quote = range.end() == offset;
            }
        }
@@ -206,7 +206,7 @@ fn compute_ws(left: SyntaxKind, right: SyntaxKind) -> &'static str {
 #[cfg(test)]
 mod tests {
    use syntax::SourceFile;
-    use test_utils::{add_cursor, assert_eq_text, extract_offset, extract_range, mark};
+    use test_utils::{add_cursor, assert_eq_text, extract_offset, extract_range};
    use super::*;
@@ -786,7 +786,7 @@ fn foo() {
    #[test]
    fn join_string_literal() {
-        mark::check!(join_string_literal);
+        cov_mark::check!(join_string_literal);
        check_join_lines(
            r#"
 fn main() {
diff --git a/crates/ide/src/matching_brace.rs b/crates/ide/src/matching_brace.rs
index 1bfa1439d..000c412d9 100644
--- a/crates/ide/src/matching_brace.rs
+++ b/crates/ide/src/matching_brace.rs
@@ -2,7 +2,6 @@ use syntax::{
    ast::{self, AstNode},
    SourceFile, SyntaxKind, TextSize, T,
 };
-use test_utils::mark;
 // Feature: Matching Brace
 //
@@ -28,7 +27,7 @@ pub(crate) fn matching_brace(file: &SourceFile, offset: TextSize) -> Option<Text
        .next()?;
    let parent = brace_token.parent();
    if brace_token.kind() == T![|] && !ast::ParamList::can_cast(parent.kind()) {
-        mark::hit!(pipes_not_braces);
+        cov_mark::hit!(pipes_not_braces);
        return None;
    }
    let matching_kind = BRACES[brace_idx ^ 1];
@@ -63,7 +62,7 @@ mod tests {
        do_check("fn main() { $0|x: i32| x * 2;}", "fn main() { |x: i32$0| x * 2;}");
        {
-            mark::check!(pipes_not_braces);
+            cov_mark::check!(pipes_not_braces);
            do_check(
                "fn main() { match 92 { 1 | 2 |$0 3 => 92 } }",
                "fn main() { match 92 { 1 | 2 |$0 3 => 92 } }",
diff --git a/crates/ide/src/parent_module.rs b/crates/ide/src/parent_module.rs
index ddbaf22b7..03d71b380 100644
--- a/crates/ide/src/parent_module.rs
+++ b/crates/ide/src/parent_module.rs
@@ -5,7 +5,6 @@ use syntax::{
    algo::find_node_at_offset,
    ast::{self, AstNode},
 };
-use test_utils::mark;
 use crate::NavigationTarget;
@@ -33,7 +32,7 @@ pub(crate) fn parent_module(db: &RootDatabase, position: FilePosition) -> Vec<Na
            .item_list()
            .map_or(false, |it| it.syntax().text_range().contains_inclusive(position.offset))
        {
-            mark::hit!(test_resolve_parent_module_on_module_decl);
+            cov_mark::hit!(test_resolve_parent_module_on_module_decl);
            module = m.syntax().ancestors().skip(1).find_map(ast::Module::cast);
        }
    }
@@ -64,7 +63,6 @@ pub(crate) fn crate_for(db: &RootDatabase, file_id: FileId) -> Vec<CrateId> {
 #[cfg(test)]
 mod tests {
    use ide_db::base_db::FileRange;
-    use test_utils::mark;
    use crate::fixture;
@@ -92,7 +90,7 @@ $0// empty
    #[test]
    fn test_resolve_parent_module_on_module_decl() {
-        mark::check!(test_resolve_parent_module_on_module_decl);
+        cov_mark::check!(test_resolve_parent_module_on_module_decl);
        check(
            r#"
 //- /lib.rs
diff --git a/crates/ide/src/references/rename.rs b/crates/ide/src/references/rename.rs
index 1919639a3..05c73de88 100644
--- a/crates/ide/src/references/rename.rs
+++ b/crates/ide/src/references/rename.rs
@@ -14,7 +14,7 @@ use syntax::{
    ast::{self, NameOwner},
    lex_single_syntax_kind, AstNode, SyntaxKind, SyntaxNode, T,
 };
-use test_utils::mark;
 use text_edit::TextEdit;
 use crate::{display::TryToNav, FilePosition, FileSystemEdit, RangeInfo, SourceChange, TextRange};
@@ -226,34 +226,36 @@ fn rename_reference(
        | (IdentifierKind::Ident, _)
            if def_is_lbl_or_lt =>
        {
-            mark::hit!(rename_not_a_lifetime_ident_ref);
+            cov_mark::hit!(rename_not_a_lifetime_ident_ref);
            bail!("Invalid name `{}`: not a lifetime identifier", new_name)
        }
-        (IdentifierKind::Lifetime, _) if def_is_lbl_or_lt => mark::hit!(rename_lifetime),
+        (IdentifierKind::Lifetime, _) if def_is_lbl_or_lt => cov_mark::hit!(rename_lifetime),
        (IdentifierKind::Lifetime, _) => {
-            mark::hit!(rename_not_an_ident_ref);
+            cov_mark::hit!(rename_not_an_ident_ref);
            bail!("Invalid name `{}`: not an identifier", new_name)
        }
        (IdentifierKind::ToSelf, Definition::Local(local)) if local.is_self(sema.db) => {
            // no-op
-            mark::hit!(rename_self_to_self);
+            cov_mark::hit!(rename_self_to_self);
            return Ok(SourceChange::default());
        }
        (ident_kind, Definition::Local(local)) if local.is_self(sema.db) => {
-            mark::hit!(rename_self_to_param);
+            cov_mark::hit!(rename_self_to_param);
            return rename_self_to_param(sema, local, new_name, ident_kind);
        }
        (IdentifierKind::ToSelf, Definition::Local(local)) => {
-            mark::hit!(rename_to_self);
+            cov_mark::hit!(rename_to_self);
            return rename_to_self(sema, local);
        }
        (IdentifierKind::ToSelf, _) => bail!("Invalid name `{}`: not an identifier", new_name),
-        (IdentifierKind::Ident, _) | (IdentifierKind::Underscore, _) => mark::hit!(rename_ident),
+        (IdentifierKind::Ident, _) | (IdentifierKind::Underscore, _) => {
+            cov_mark::hit!(rename_ident)
+        }
    }
    let usages = def.usages(sema).all();
    if !usages.is_empty() && ident_kind == IdentifierKind::Underscore {
-        mark::hit!(rename_underscore_multiple);
+        cov_mark::hit!(rename_underscore_multiple);
        bail!("Cannot rename reference to `_` as it is being referenced multiple times");
    }
    let mut source_change = SourceChange::default();
@@ -444,7 +446,7 @@ fn source_edit_from_name_ref(
            (Some(field_name), Some(init)) => {
                if field_name == *name_ref {
                    if init.text() == new_name {
-                        mark::hit!(test_rename_field_put_init_shorthand);
+                        cov_mark::hit!(test_rename_field_put_init_shorthand);
                        // same names, we can use a shorthand here instead.
                        // we do not want to erase attributes hence this range start
                        let s = field_name.syntax().text_range().start();
@@ -453,7 +455,7 @@ fn source_edit_from_name_ref(
                    }
                } else if init == *name_ref {
                    if field_name.text() == new_name {
-                        mark::hit!(test_rename_local_put_init_shorthand);
+                        cov_mark::hit!(test_rename_local_put_init_shorthand);
                        // same names, we can use a shorthand here instead.
                        // we do not want to erase attributes hence this range start
                        let s = field_name.syntax().text_range().start();
@@ -467,12 +469,12 @@ fn source_edit_from_name_ref(
            // FIXME: instead of splitting the shorthand, recursively trigger a rename of the
            // other name https://github.com/rust-analyzer/rust-analyzer/issues/6547
            (None, Some(_)) if matches!(def, Definition::Field(_)) => {
-                mark::hit!(test_rename_field_in_field_shorthand);
+                cov_mark::hit!(test_rename_field_in_field_shorthand);
                let s = name_ref.syntax().text_range().start();
                Some((TextRange::empty(s), format!("{}: ", new_name)))
            }
            (None, Some(_)) if matches!(def, Definition::Local(_)) => {
-                mark::hit!(test_rename_local_in_field_shorthand);
+                cov_mark::hit!(test_rename_local_in_field_shorthand);
                let s = name_ref.syntax().text_range().end();
                Some((TextRange::empty(s), format!(": {}", new_name)))
            }
@@ -486,7 +488,7 @@ fn source_edit_from_name_ref(
            (Some(field_name), Some(ast::Pat::IdentPat(pat))) if field_name == *name_ref => {
                // field name is being renamed
                if pat.name().map_or(false, |it| it.text() == new_name) {
-                    mark::hit!(test_rename_field_put_init_shorthand_pat);
+                    cov_mark::hit!(test_rename_field_put_init_shorthand_pat);
                    // same names, we can use a shorthand here instead/
                    // we do not want to erase attributes hence this range start
                    let s = field_name.syntax().text_range().start();
@@ -538,7 +540,7 @@ fn source_edit_from_def(
 mod tests {
    use expect_test::{expect, Expect};
    use stdx::trim_indent;
-    use test_utils::{assert_eq_text, mark};
+    use test_utils::assert_eq_text;
    use text_edit::TextEdit;
    use crate::{fixture, FileId};
@@ -627,7 +629,7 @@ mod tests {
    #[test]
    fn test_rename_to_invalid_identifier_lifetime() {
-        mark::check!(rename_not_an_ident_ref);
+        cov_mark::check!(rename_not_an_ident_ref);
        check(
            "'foo",
            r#"fn main() { let i$0 = 1; }"#,
@@ -637,7 +639,7 @@ mod tests {
    #[test]
    fn test_rename_to_invalid_identifier_lifetime2() {
-        mark::check!(rename_not_a_lifetime_ident_ref);
+        cov_mark::check!(rename_not_a_lifetime_ident_ref);
        check(
            "foo",
            r#"fn main<'a>(_: &'a$0 ()) {}"#,
@@ -647,7 +649,7 @@ mod tests {
    #[test]
    fn test_rename_to_underscore_invalid() {
-        mark::check!(rename_underscore_multiple);
+        cov_mark::check!(rename_underscore_multiple);
        check(
            "_",
            r#"fn main(foo$0: ()) {foo;}"#,
@@ -666,7 +668,7 @@ mod tests {
    #[test]
    fn test_rename_for_local() {
-        mark::check!(rename_ident);
+        cov_mark::check!(rename_ident);
        check(
            "k",
            r#"
@@ -829,7 +831,7 @@ impl Foo {
    #[test]
    fn test_rename_field_in_field_shorthand() {
-        mark::check!(test_rename_field_in_field_shorthand);
+        cov_mark::check!(test_rename_field_in_field_shorthand);
        check(
            "j",
            r#"
@@ -855,7 +857,7 @@ impl Foo {
    #[test]
    fn test_rename_local_in_field_shorthand() {
-        mark::check!(test_rename_local_in_field_shorthand);
+        cov_mark::check!(test_rename_local_in_field_shorthand);
        check(
            "j",
            r#"
@@ -1261,7 +1263,7 @@ fn foo(f: foo::Foo) {
    #[test]
    fn test_parameter_to_self() {
-        mark::check!(rename_to_self);
+        cov_mark::check!(rename_to_self);
        check(
            "self",
            r#"
@@ -1401,7 +1403,7 @@ impl Foo {
    #[test]
    fn test_owned_self_to_parameter() {
-        mark::check!(rename_self_to_param);
+        cov_mark::check!(rename_self_to_param);
        check(
            "foo",
            r#"
@@ -1454,7 +1456,7 @@ impl Foo {
    #[test]
    fn test_rename_field_put_init_shorthand() {
-        mark::check!(test_rename_field_put_init_shorthand);
+        cov_mark::check!(test_rename_field_put_init_shorthand);
        check(
            "bar",
            r#"
@@ -1476,7 +1478,7 @@ fn foo(bar: i32) -> Foo {
    #[test]
    fn test_rename_local_put_init_shorthand() {
-        mark::check!(test_rename_local_put_init_shorthand);
+        cov_mark::check!(test_rename_local_put_init_shorthand);
        check(
            "i",
            r#"
@@ -1498,7 +1500,7 @@ fn foo(i: i32) -> Foo {
    #[test]
    fn test_struct_field_pat_into_shorthand() {
-        mark::check!(test_rename_field_put_init_shorthand_pat);
+        cov_mark::check!(test_rename_field_put_init_shorthand_pat);
        check(
            "baz",
            r#"
@@ -1610,7 +1612,7 @@ fn foo(foo: Foo) {
    #[test]
    fn test_rename_lifetimes() {
-        mark::check!(rename_lifetime);
+        cov_mark::check!(rename_lifetime);
        check(
            "'yeeee",
            r#"
@@ -1698,7 +1700,7 @@ fn foo<'a>() -> &'a () {
    #[test]
    fn test_self_to_self() {
-        mark::check!(rename_self_to_self);
+        cov_mark::check!(rename_self_to_self);
        check(
            "self",
            r#"
diff --git a/crates/ide/src/runnables.rs b/crates/ide/src/runnables.rs
index 65f60891e..280565563 100644
--- a/crates/ide/src/runnables.rs
+++ b/crates/ide/src/runnables.rs
@@ -9,7 +9,6 @@ use syntax::{
    ast::{self, AstNode, AttrsOwner},
    match_ast, SyntaxNode,
 };
-use test_utils::mark;
 use crate::{
    display::{ToNav, TryToNav},
@@ -130,7 +129,9 @@ fn runnables_mod(sema: &Semantics<RootDatabase>, acc: &mut Vec<Runnable>, module
        if let hir::ModuleDef::Module(submodule) = def {
            match submodule.definition_source(sema.db).value {
                hir::ModuleSource::Module(_) => runnables_mod(sema, acc, submodule),
-                hir::ModuleSource::SourceFile(_) => mark::hit!(dont_recurse_in_outline_submodules),
+                hir::ModuleSource::SourceFile(_) => {
+                    cov_mark::hit!(dont_recurse_in_outline_submodules)
+                }
                hir::ModuleSource::BlockExpr(_) => {} // inner items aren't runnable
            }
        }
@@ -328,7 +329,6 @@ fn has_test_function_or_multiple_test_submodules(
 #[cfg(test)]
 mod tests {
    use expect_test::{expect, Expect};
-    use test_utils::mark;
    use crate::fixture;
@@ -1056,7 +1056,7 @@ mod tests {
    #[test]
    fn dont_recurse_in_outline_submodules() {
-        mark::check!(dont_recurse_in_outline_submodules);
+        cov_mark::check!(dont_recurse_in_outline_submodules);
        check(
            r#"
 //- /lib.rs
diff --git a/crates/ide/src/typing/on_enter.rs b/crates/ide/src/typing/on_enter.rs
index 63cd51b69..978c479de 100644
--- a/crates/ide/src/typing/on_enter.rs
+++ b/crates/ide/src/typing/on_enter.rs
@@ -9,7 +9,7 @@ use syntax::{
    SyntaxKind::*,
    SyntaxToken, TextRange, TextSize, TokenAtOffset,
 };
-use test_utils::mark;
 use text_edit::TextEdit;
 // Feature: On Enter
@@ -55,7 +55,7 @@ pub(crate) fn on_enter(db: &RootDatabase, position: FilePosition) -> Option<Text
    // Continuing single-line non-doc comments (like this one :) ) is annoying
    if prefix == "//" && comment_range.end() == position.offset {
        if comment.text().ends_with(' ') {
-            mark::hit!(continues_end_of_line_comment_with_space);
+            cov_mark::hit!(continues_end_of_line_comment_with_space);
            remove_trailing_whitespace = true;
        } else if !followed_by_comment(&comment) {
            return None;
@@ -109,7 +109,7 @@ fn node_indent(file: &SourceFile, token: &SyntaxToken) -> Option<SmolStr> {
 #[cfg(test)]
 mod tests {
    use stdx::trim_indent;
-    use test_utils::{assert_eq_text, mark};
+    use test_utils::assert_eq_text;
    use crate::fixture;
@@ -238,7 +238,7 @@ fn main() {
    #[test]
    fn continues_end_of_line_comment_with_space() {
-        mark::check!(continues_end_of_line_comment_with_space);
+        cov_mark::check!(continues_end_of_line_comment_with_space);
        do_check(
            r#"
 fn main() {
diff --git a/crates/ide_assists/Cargo.toml b/crates/ide_assists/Cargo.toml
index a34bdd6c3..3bf0099a9 100644
--- a/crates/ide_assists/Cargo.toml
+++ b/crates/ide_assists/Cargo.toml
@@ -10,6 +10,7 @@ edition = "2018"
 doctest = false
 [dependencies]
+cov-mark = "1.1"
 rustc-hash = "1.1.0"
 itertools = "0.10.0"
 either = "1.6.1"
diff --git a/crates/ide_assists/src/handlers/add_turbo_fish.rs b/crates/ide_assists/src/handlers/add_turbo_fish.rs
index a08b55ebb..3b6efbab4 100644
--- a/crates/ide_assists/src/handlers/add_turbo_fish.rs
+++ b/crates/ide_assists/src/handlers/add_turbo_fish.rs
@@ -1,6 +1,5 @@
 use ide_db::defs::{Definition, NameRefClass};
 use syntax::{ast, AstNode, SyntaxKind, T};
-use test_utils::mark;
 use crate::{
    assist_context::{AssistContext, Assists},
@@ -30,13 +29,13 @@ pub(crate) fn add_turbo_fish(acc: &mut Assists, ctx: &AssistContext) -> Option<(
        if arg_list.args().count() > 0 {
            return None;
        }
-        mark::hit!(add_turbo_fish_after_call);
+        cov_mark::hit!(add_turbo_fish_after_call);
-        mark::hit!(add_type_ascription_after_call);
+        cov_mark::hit!(add_type_ascription_after_call);
        arg_list.l_paren_token()?.prev_token().filter(|it| it.kind() == SyntaxKind::IDENT)
    })?;
    let next_token = ident.next_token()?;
    if next_token.kind() == T![::] {
-        mark::hit!(add_turbo_fish_one_fish_is_enough);
+        cov_mark::hit!(add_turbo_fish_one_fish_is_enough);
        return None;
    }
    let name_ref = ast::NameRef::cast(ident.parent())?;
@@ -50,7 +49,7 @@ pub(crate) fn add_turbo_fish(acc: &mut Assists, ctx: &AssistContext) -> Option<(
    };
    let generics = hir::GenericDef::Function(fun).params(ctx.sema.db);
    if generics.is_empty() {
-        mark::hit!(add_turbo_fish_non_generic);
+        cov_mark::hit!(add_turbo_fish_non_generic);
        return None;
    }
@@ -67,7 +66,7 @@ pub(crate) fn add_turbo_fish(acc: &mut Assists, ctx: &AssistContext) -> Option<(
                },
            )?
        } else {
-            mark::hit!(add_type_ascription_already_typed);
+            cov_mark::hit!(add_type_ascription_already_typed);
        }
    }
@@ -87,7 +86,6 @@ mod tests {
    use crate::tests::{check_assist, check_assist_by_label, check_assist_not_applicable};
    use super::*;
-    use test_utils::mark;
    #[test]
    fn add_turbo_fish_function() {
@@ -110,7 +108,7 @@ fn main() {
    #[test]
    fn add_turbo_fish_after_call() {
-        mark::check!(add_turbo_fish_after_call);
+        cov_mark::check!(add_turbo_fish_after_call);
        check_assist(
            add_turbo_fish,
            r#"
@@ -155,7 +153,7 @@ fn main() {
    #[test]
    fn add_turbo_fish_one_fish_is_enough() {
-        mark::check!(add_turbo_fish_one_fish_is_enough);
+        cov_mark::check!(add_turbo_fish_one_fish_is_enough);
        check_assist_not_applicable(
            add_turbo_fish,
            r#"
@@ -169,7 +167,7 @@ fn main() {
    #[test]
    fn add_turbo_fish_non_generic() {
-        mark::check!(add_turbo_fish_non_generic);
+        cov_mark::check!(add_turbo_fish_non_generic);
        check_assist_not_applicable(
            add_turbo_fish,
            r#"
@@ -203,7 +201,7 @@ fn main() {
    #[test]
    fn add_type_ascription_after_call() {
-        mark::check!(add_type_ascription_after_call);
+        cov_mark::check!(add_type_ascription_after_call);
        check_assist_by_label(
            add_turbo_fish,
            r#"
@@ -250,7 +248,7 @@ fn main() {
    #[test]
    fn add_type_ascription_already_typed() {
-        mark::check!(add_type_ascription_already_typed);
+        cov_mark::check!(add_type_ascription_already_typed);
        check_assist(
            add_turbo_fish,
            r#"
diff --git a/crates/ide_assists/src/handlers/apply_demorgan.rs b/crates/ide_assists/src/handlers/apply_demorgan.rs
index 128b1eb56..a1c339603 100644
--- a/crates/ide_assists/src/handlers/apply_demorgan.rs
+++ b/crates/ide_assists/src/handlers/apply_demorgan.rs
@@ -1,5 +1,4 @@
 use syntax::ast::{self, AstNode};
-use test_utils::mark;
 use crate::{utils::invert_boolean_expression, AssistContext, AssistId, AssistKind, Assists};
@@ -64,10 +63,10 @@ pub(crate) fn apply_demorgan(acc: &mut Assists, ctx: &AssistContext) -> Option<(
                edit.replace(lhs_range, not_lhs.syntax().text());
                edit.replace(rhs_range, not_rhs.syntax().text());
                if let Some(neg_expr) = neg_expr {
-                    mark::hit!(demorgan_double_negation);
+                    cov_mark::hit!(demorgan_double_negation);
                    edit.replace(neg_expr.op_token().unwrap().text_range(), "");
                } else {
-                    mark::hit!(demorgan_double_parens);
+                    cov_mark::hit!(demorgan_double_parens);
                    edit.replace(paren_expr.l_paren_token().unwrap().text_range(), "!(");
                }
            } else {
@@ -90,7 +89,6 @@ fn opposite_logic_op(kind: ast::BinOp) -> Option<&'static str> {
 #[cfg(test)]
 mod tests {
    use ide_db::helpers::FamousDefs;
-    use test_utils::mark;
    use super::*;
@@ -188,13 +186,13 @@ fn f() {
    #[test]
    fn demorgan_doesnt_double_negation() {
-        mark::check!(demorgan_double_negation);
+        cov_mark::check!(demorgan_double_negation);
        check_assist(apply_demorgan, "fn f() { !(x ||$0 x) }", "fn f() { (!x && !x) }")
    }
    #[test]
    fn demorgan_doesnt_double_parens() {
-        mark::check!(demorgan_double_parens);
+        cov_mark::check!(demorgan_double_parens);
        check_assist(apply_demorgan, "fn f() { (x ||$0 x) }", "fn f() { !(!x && !x) }")
    }
 }
diff --git a/crates/ide_assists/src/handlers/change_visibility.rs b/crates/ide_assists/src/handlers/change_visibility.rs
index ac8c44124..ec99a5505 100644
--- a/crates/ide_assists/src/handlers/change_visibility.rs
+++ b/crates/ide_assists/src/handlers/change_visibility.rs
@@ -4,7 +4,6 @@ use syntax::{
    SyntaxKind::{CONST, ENUM, FN, MODULE, STATIC, STRUCT, TRAIT, TYPE_ALIAS, VISIBILITY},
    T,
 };
-use test_utils::mark;
 use crate::{utils::vis_offset, AssistContext, AssistId, AssistKind, Assists};
@@ -56,7 +55,7 @@ fn add_vis(acc: &mut Assists, ctx: &AssistContext) -> Option<()> {
    } else if let Some(field_name) = ctx.find_node_at_offset::<ast::Name>() {
        let field = field_name.syntax().ancestors().find_map(ast::RecordField::cast)?;
        if field.name()? != field_name {
-            mark::hit!(change_visibility_field_false_positive);
+            cov_mark::hit!(change_visibility_field_false_positive);
            return None;
        }
        if field.visibility().is_some() {
@@ -110,8 +109,6 @@ fn change_vis(acc: &mut Assists, vis: ast::Visibility) -> Option<()> {
 #[cfg(test)]
 mod tests {
-    use test_utils::mark;
    use crate::tests::{check_assist, check_assist_not_applicable, check_assist_target};
    use super::*;
@@ -139,7 +136,7 @@ mod tests {
    #[test]
    fn change_visibility_field_false_positive() {
-        mark::check!(change_visibility_field_false_positive);
+        cov_mark::check!(change_visibility_field_false_positive);
        check_assist_not_applicable(
            change_visibility,
            r"struct S { field: [(); { let $0x = ();}] }",
diff --git a/crates/ide_assists/src/handlers/extract_function.rs b/crates/ide_assists/src/handlers/extract_function.rs
index 8779d8bd1..dd4501709 100644
--- a/crates/ide_assists/src/handlers/extract_function.rs
+++ b/crates/ide_assists/src/handlers/extract_function.rs
@@ -20,7 +20,6 @@ use syntax::{
    SyntaxKind::{self, BLOCK_EXPR, BREAK_EXPR, COMMENT, PATH_EXPR, RETURN_EXPR},
    SyntaxNode, SyntaxToken, TextRange, TextSize, TokenAtOffset, WalkEvent, T,
 };
-use test_utils::mark;
 use crate::{
    assist_context::{AssistContext, Assists},
@@ -59,7 +58,7 @@ pub(crate) fn extract_function(acc: &mut Assists, ctx: &AssistContext) -> Option
    let node = ctx.covering_element();
    if node.kind() == COMMENT {
-        mark::hit!(extract_function_in_comment_is_not_applicable);
+        cov_mark::hit!(extract_function_in_comment_is_not_applicable);
        return None;
    }
@@ -197,14 +196,14 @@ fn external_control_flow(ctx: &AssistContext, body: &FunctionBody) -> Option<Con
                if let Some(kind) = expr_err_kind(&expr, ctx) {
                    Some(FlowKind::TryReturn { expr, kind })
                } else {
-                    mark::hit!(external_control_flow_try_and_return_non_err);
+                    cov_mark::hit!(external_control_flow_try_and_return_non_err);
                    return None;
                }
            }
            None => return None,
        },
        (Some(_), _, _, _) => {
-            mark::hit!(external_control_flow_try_and_bc);
+            cov_mark::hit!(external_control_flow_try_and_bc);
            return None;
        }
        (None, Some(r), None, None) => match r.expr() {
@@ -212,11 +211,11 @@ fn external_control_flow(ctx: &AssistContext, body: &FunctionBody) -> Option<Con
            None => Some(FlowKind::Return),
        },
        (None, Some(_), _, _) => {
-            mark::hit!(external_control_flow_return_and_bc);
+            cov_mark::hit!(external_control_flow_return_and_bc);
            return None;
        }
        (None, None, Some(_), Some(_)) => {
-            mark::hit!(external_control_flow_break_and_continue);
+            cov_mark::hit!(external_control_flow_break_and_continue);
            return None;
        }
        (None, None, Some(b), None) => match b.expr() {
@@ -1837,7 +1836,7 @@ fn $0fun_name(n: u32) -> u32 {
    #[test]
    fn in_comment_is_not_applicable() {
-        mark::check!(extract_function_in_comment_is_not_applicable);
+        cov_mark::check!(extract_function_in_comment_is_not_applicable);
        check_assist_not_applicable(extract_function, r"fn main() { 1 + /* $0comment$0 */ 1; }");
    }
@@ -2822,7 +2821,7 @@ fn $0fun_name(n: i32) -> Result<i32, i64> {
    #[test]
    fn break_and_continue() {
-        mark::check!(external_control_flow_break_and_continue);
+        cov_mark::check!(external_control_flow_break_and_continue);
        check_assist_not_applicable(
            extract_function,
            r##"
@@ -2842,7 +2841,7 @@ fn foo() {
    #[test]
    fn return_and_break() {
-        mark::check!(external_control_flow_return_and_bc);
+        cov_mark::check!(external_control_flow_return_and_bc);
        check_assist_not_applicable(
            extract_function,
            r##"
@@ -3341,7 +3340,7 @@ fn $0fun_name() -> Result<i32, i64> {
    #[test]
    fn try_and_break() {
-        mark::check!(external_control_flow_try_and_bc);
+        cov_mark::check!(external_control_flow_try_and_bc);
        check_assist_not_applicable(
            extract_function,
            r##"
@@ -3363,7 +3362,7 @@ fn foo() -> Option<()> {
    #[test]
    fn try_and_return_ok() {
-        mark::check!(external_control_flow_try_and_return_non_err);
+        cov_mark::check!(external_control_flow_try_and_return_non_err);
        check_assist_not_applicable(
            extract_function,
            r##"
diff --git a/crates/ide_assists/src/handlers/extract_variable.rs b/crates/ide_assists/src/handlers/extract_variable.rs
index 312ac7ac4..7a32483dc 100644
--- a/crates/ide_assists/src/handlers/extract_variable.rs
+++ b/crates/ide_assists/src/handlers/extract_variable.rs
@@ -6,7 +6,6 @@ use syntax::{
    },
    SyntaxNode,
 };
-use test_utils::mark;
 use crate::{utils::suggest_name, AssistContext, AssistId, AssistKind, Assists};
@@ -32,7 +31,7 @@ pub(crate) fn extract_variable(acc: &mut Assists, ctx: &AssistContext) -> Option
    }
    let node = ctx.covering_element();
    if node.kind() == COMMENT {
-        mark::hit!(extract_var_in_comment_is_not_applicable);
+        cov_mark::hit!(extract_var_in_comment_is_not_applicable);
        return None;
    }
    let to_extract = node.ancestors().find_map(valid_target_expr)?;
@@ -69,7 +68,7 @@ pub(crate) fn extract_variable(acc: &mut Assists, ctx: &AssistContext) -> Option
            format_to!(buf, "{}", to_extract.syntax());
            if let Anchor::Replace(stmt) = anchor {
-                mark::hit!(test_extract_var_expr_stmt);
+                cov_mark::hit!(test_extract_var_expr_stmt);
                if stmt.semicolon_token().is_none() {
                    buf.push_str(";");
                }
@@ -142,7 +141,7 @@ impl Anchor {
                node.parent().and_then(ast::BlockExpr::cast).and_then(|it| it.tail_expr())
            {
                if expr.syntax() == &node {
-                    mark::hit!(test_extract_var_last_expr);
+                    cov_mark::hit!(test_extract_var_last_expr);
                    return Some(Anchor::Before(node));
                }
            }
@@ -175,8 +174,6 @@ impl Anchor {
 #[cfg(test)]
 mod tests {
-    use test_utils::mark;
    use crate::tests::{check_assist, check_assist_not_applicable, check_assist_target};
    use super::*;
@@ -199,13 +196,13 @@ fn foo() {
    #[test]
    fn extract_var_in_comment_is_not_applicable() {
-        mark::check!(extract_var_in_comment_is_not_applicable);
+        cov_mark::check!(extract_var_in_comment_is_not_applicable);
        check_assist_not_applicable(extract_variable, "fn main() { 1 + /* $0comment$0 */ 1; }");
    }
    #[test]
    fn test_extract_var_expr_stmt() {
-        mark::check!(test_extract_var_expr_stmt);
+        cov_mark::check!(test_extract_var_expr_stmt);
        check_assist(
            extract_variable,
            r#"
@@ -250,7 +247,7 @@ fn foo() {
    #[test]
    fn test_extract_var_last_expr() {
-        mark::check!(test_extract_var_last_expr);
+        cov_mark::check!(test_extract_var_last_expr);
        check_assist(
            extract_variable,
            r#"
diff --git a/crates/ide_assists/src/handlers/fill_match_arms.rs b/crates/ide_assists/src/handlers/fill_match_arms.rs
index 7086e47d2..878b3a3fa 100644
--- a/crates/ide_assists/src/handlers/fill_match_arms.rs
+++ b/crates/ide_assists/src/handlers/fill_match_arms.rs
@@ -5,7 +5,6 @@ use ide_db::helpers::{mod_path_to_ast, FamousDefs};
 use ide_db::RootDatabase;
 use itertools::Itertools;
 use syntax::ast::{self, make, AstNode, MatchArm, NameOwner, Pat};
-use test_utils::mark;
 use crate::{
    utils::{does_pat_match_variant, render_snippet, Cursor},
@@ -62,7 +61,7 @@ pub(crate) fn fill_match_arms(acc: &mut Assists, ctx: &AssistContext) -> Option<
            .collect::<Vec<_>>();
        if Some(enum_def) == FamousDefs(&ctx.sema, Some(module.krate())).core_option_Option() {
            // Match `Some` variant first.
-            mark::hit!(option_order);
+            cov_mark::hit!(option_order);
            variants.reverse()
        }
        variants
@@ -195,7 +194,6 @@ fn build_pat(db: &RootDatabase, module: hir::Module, var: hir::Variant) -> Optio
 #[cfg(test)]
 mod tests {
    use ide_db::helpers::FamousDefs;
-    use test_utils::mark;
    use crate::tests::{check_assist, check_assist_not_applicable, check_assist_target};
@@ -730,7 +728,7 @@ fn main() {
    #[test]
    fn option_order() {
-        mark::check!(option_order);
+        cov_mark::check!(option_order);
        let before = r#"
 fn foo(opt: Option<i32>) {
    match opt$0 {
diff --git a/crates/ide_assists/src/handlers/generate_default_from_enum_variant.rs b/crates/ide_assists/src/handlers/generate_default_from_enum_variant.rs
index 6a2ab9596..588ee1350 100644
--- a/crates/ide_assists/src/handlers/generate_default_from_enum_variant.rs
+++ b/crates/ide_assists/src/handlers/generate_default_from_enum_variant.rs
@@ -1,7 +1,6 @@
 use ide_db::helpers::FamousDefs;
 use ide_db::RootDatabase;
 use syntax::ast::{self, AstNode, NameOwner};
-use test_utils::mark;
 use crate::{AssistContext, AssistId, AssistKind, Assists};
@@ -38,12 +37,12 @@ pub(crate) fn generate_default_from_enum_variant(
    let variant_name = variant.name()?;
    let enum_name = variant.parent_enum().name()?;
    if !matches!(variant.kind(), ast::StructKind::Unit) {
-        mark::hit!(test_gen_default_on_non_unit_variant_not_implemented);
+        cov_mark::hit!(test_gen_default_on_non_unit_variant_not_implemented);
        return None;
    }
    if existing_default_impl(&ctx.sema, &variant).is_some() {
-        mark::hit!(test_gen_default_impl_already_exists);
+        cov_mark::hit!(test_gen_default_impl_already_exists);
        return None;
    }
@@ -89,8 +88,6 @@ fn existing_default_impl(
 #[cfg(test)]
 mod tests {
-    use test_utils::mark;
    use crate::tests::{check_assist, check_assist_not_applicable};
    use super::*;
@@ -127,7 +124,7 @@ impl Default for Variant {
    #[test]
    fn test_generate_default_already_implemented() {
-        mark::check!(test_gen_default_impl_already_exists);
+        cov_mark::check!(test_gen_default_impl_already_exists);
        check_not_applicable(
            r#"
 enum Variant {
@@ -146,7 +143,7 @@ impl Default for Variant {
    #[test]
    fn test_add_from_impl_no_element() {
-        mark::check!(test_gen_default_on_non_unit_variant_not_implemented);
+        cov_mark::check!(test_gen_default_on_non_unit_variant_not_implemented);
        check_not_applicable(
            r#"
 enum Variant {
diff --git a/crates/ide_assists/src/handlers/generate_default_from_new.rs b/crates/ide_assists/src/handlers/generate_default_from_new.rs
index fa1254579..81c54ba3e 100644
--- a/crates/ide_assists/src/handlers/generate_default_from_new.rs
+++ b/crates/ide_assists/src/handlers/generate_default_from_new.rs
@@ -7,7 +7,6 @@ use syntax::{
    ast::{self, Impl, NameOwner},
    AstNode,
 };
-use test_utils::mark;
 // Assist: generate_default_from_new
 //
@@ -43,19 +42,19 @@ pub(crate) fn generate_default_from_new(acc: &mut Assists, ctx: &AssistContext)
    let fn_name = fn_node.name()?;
    if fn_name.text() != "new" {
-        mark::hit!(other_function_than_new);
+        cov_mark::hit!(other_function_than_new);
        return None;
    }
    if fn_node.param_list()?.params().next().is_some() {
-        mark::hit!(new_function_with_parameters);
+        cov_mark::hit!(new_function_with_parameters);
        return None;
    }
    let impl_ = fn_node.syntax().ancestors().into_iter().find_map(ast::Impl::cast)?;
    if is_default_implemented(ctx, &impl_) {
-        mark::hit!(default_block_is_already_present);
+        cov_mark::hit!(default_block_is_already_present);
-        mark::hit!(struct_in_module_with_default);
+        cov_mark::hit!(struct_in_module_with_default);
        return None;
    }
@@ -178,7 +177,7 @@ impl Default for Test {
    #[test]
    fn new_function_with_parameters() {
-        mark::check!(new_function_with_parameters);
+        cov_mark::check!(new_function_with_parameters);
        check_not_applicable(
            r#"
 struct Example { _inner: () }
@@ -194,7 +193,7 @@ impl Example {
    #[test]
    fn other_function_than_new() {
-        mark::check!(other_function_than_new);
+        cov_mark::check!(other_function_than_new);
        check_not_applicable(
            r#"
 struct Example { _inner: () }
@@ -211,7 +210,7 @@ impl Example {
    #[test]
    fn default_block_is_already_present() {
-        mark::check!(default_block_is_already_present);
+        cov_mark::check!(default_block_is_already_present);
        check_not_applicable(
            r#"
 struct Example { _inner: () }
@@ -340,7 +339,7 @@ impl Default for Example {
    #[test]
    fn struct_in_module_with_default() {
-        mark::check!(struct_in_module_with_default);
+        cov_mark::check!(struct_in_module_with_default);
        check_not_applicable(
            r#"
 mod test {
diff --git a/crates/ide_assists/src/handlers/generate_from_impl_for_enum.rs b/crates/ide_assists/src/handlers/generate_from_impl_for_enum.rs
index d9388a737..c13c6eebe 100644
--- a/crates/ide_assists/src/handlers/generate_from_impl_for_enum.rs
+++ b/crates/ide_assists/src/handlers/generate_from_impl_for_enum.rs
@@ -1,7 +1,6 @@
 use ide_db::helpers::FamousDefs;
 use ide_db::RootDatabase;
 use syntax::ast::{self, AstNode, NameOwner};
-use test_utils::mark;
 use crate::{utils::generate_trait_impl_text, AssistContext, AssistId, AssistKind, Assists};
@@ -44,7 +43,7 @@ pub(crate) fn generate_from_impl_for_enum(acc: &mut Assists, ctx: &AssistContext
    };
    if existing_from_impl(&ctx.sema, &variant).is_some() {
-        mark::hit!(test_add_from_impl_already_exists);
+        cov_mark::hit!(test_add_from_impl_already_exists);
        return None;
    }
@@ -103,8 +102,6 @@ fn existing_from_impl(
 #[cfg(test)]
 mod tests {
-    use test_utils::mark;
    use crate::tests::{check_assist, check_assist_not_applicable};
    use super::*;
@@ -172,7 +169,7 @@ impl From<u32> for A {
    #[test]
    fn test_add_from_impl_already_exists() {
-        mark::check!(test_add_from_impl_already_exists);
+        cov_mark::check!(test_add_from_impl_already_exists);
        check_not_applicable(
            r#"
 enum A { $0One(u32), }
diff --git a/crates/ide_assists/src/handlers/infer_function_return_type.rs b/crates/ide_assists/src/handlers/infer_function_return_type.rs
index 5279af1f3..66113751c 100644
--- a/crates/ide_assists/src/handlers/infer_function_return_type.rs
+++ b/crates/ide_assists/src/handlers/infer_function_return_type.rs
@@ -1,6 +1,5 @@
 use hir::HirDisplay;
 use syntax::{ast, AstNode, TextRange, TextSize};
-use test_utils::mark;
 use crate::{AssistContext, AssistId, AssistKind, Assists};
@@ -42,7 +41,7 @@ pub(crate) fn infer_function_return_type(acc: &mut Assists, ctx: &AssistContext)
                }
            }
            if let FnType::Closure { wrap_expr: true } = fn_type {
-                mark::hit!(wrap_closure_non_block_expr);
+                cov_mark::hit!(wrap_closure_non_block_expr);
                // `|x| x` becomes `|x| -> T x` which is invalid, so wrap it in a block
                builder.replace(tail_expr.syntax().text_range(), &format!("{{{}}}", tail_expr));
            }
@@ -61,13 +60,13 @@ fn ret_ty_to_action(ret_ty: Option<ast::RetType>, insert_pos: TextSize) -> Optio
    match ret_ty {
        Some(ret_ty) => match ret_ty.ty() {
            Some(ast::Type::InferType(_)) | None => {
-                mark::hit!(existing_infer_ret_type);
+                cov_mark::hit!(existing_infer_ret_type);
-                mark::hit!(existing_infer_ret_type_closure);
+                cov_mark::hit!(existing_infer_ret_type_closure);
                Some(InsertOrReplace::Replace(ret_ty.syntax().text_range()))
            }
            _ => {
-                mark::hit!(existing_ret_type);
+                cov_mark::hit!(existing_ret_type);
-                mark::hit!(existing_ret_type_closure);
+                cov_mark::hit!(existing_ret_type_closure);
                None
            }
        },
@@ -109,11 +108,11 @@ fn extract_tail(ctx: &AssistContext) -> Option<(FnType, ast::Expr, InsertOrRepla
        };
    let frange = ctx.frange.range;
    if return_type_range.contains_range(frange) {
-        mark::hit!(cursor_in_ret_position);
+        cov_mark::hit!(cursor_in_ret_position);
-        mark::hit!(cursor_in_ret_position_closure);
+        cov_mark::hit!(cursor_in_ret_position_closure);
    } else if tail_expr.syntax().text_range().contains_range(frange) {
-        mark::hit!(cursor_on_tail);
+        cov_mark::hit!(cursor_on_tail);
-        mark::hit!(cursor_on_tail_closure);
+        cov_mark::hit!(cursor_on_tail_closure);
    } else {
        return None;
    }
@@ -128,7 +127,7 @@ mod tests {
    #[test]
    fn infer_return_type_specified_inferred() {
-        mark::check!(existing_infer_ret_type);
+        cov_mark::check!(existing_infer_ret_type);
        check_assist(
            infer_function_return_type,
            r#"fn foo() -> $0_ {
@@ -142,7 +141,7 @@ mod tests {
    #[test]
    fn infer_return_type_specified_inferred_closure() {
-        mark::check!(existing_infer_ret_type_closure);
+        cov_mark::check!(existing_infer_ret_type_closure);
        check_assist(
            infer_function_return_type,
            r#"fn foo() {
@@ -156,7 +155,7 @@ mod tests {
    #[test]
    fn infer_return_type_cursor_at_return_type_pos() {
-        mark::check!(cursor_in_ret_position);
+        cov_mark::check!(cursor_in_ret_position);
        check_assist(
            infer_function_return_type,
            r#"fn foo() $0{
@@ -170,7 +169,7 @@ mod tests {
    #[test]
    fn infer_return_type_cursor_at_return_type_pos_closure() {
-        mark::check!(cursor_in_ret_position_closure);
+        cov_mark::check!(cursor_in_ret_position_closure);
        check_assist(
            infer_function_return_type,
            r#"fn foo() {
@@ -184,7 +183,7 @@ mod tests {
    #[test]
    fn infer_return_type() {
-        mark::check!(cursor_on_tail);
+        cov_mark::check!(cursor_on_tail);
        check_assist(
            infer_function_return_type,
            r#"fn foo() {
@@ -219,7 +218,7 @@ mod tests {
    #[test]
    fn not_applicable_ret_type_specified() {
-        mark::check!(existing_ret_type);
+        cov_mark::check!(existing_ret_type);
        check_assist_not_applicable(
            infer_function_return_type,
            r#"fn foo() -> i32 {
@@ -251,7 +250,7 @@ mod tests {
    #[test]
    fn infer_return_type_closure_block() {
-        mark::check!(cursor_on_tail_closure);
+        cov_mark::check!(cursor_on_tail_closure);
        check_assist(
            infer_function_return_type,
            r#"fn foo() {
@@ -282,7 +281,7 @@ mod tests {
    #[test]
    fn infer_return_type_closure_wrap() {
-        mark::check!(wrap_closure_non_block_expr);
+        cov_mark::check!(wrap_closure_non_block_expr);
        check_assist(
            infer_function_return_type,
            r#"fn foo() {
@@ -321,7 +320,7 @@ mod tests {
    #[test]
    fn not_applicable_ret_type_specified_closure() {
-        mark::check!(existing_ret_type_closure);
+        cov_mark::check!(existing_ret_type_closure);
        check_assist_not_applicable(
            infer_function_return_type,
            r#"fn foo() {
diff --git a/crates/ide_assists/src/handlers/inline_function.rs b/crates/ide_assists/src/handlers/inline_function.rs
index 6ec99b09b..8e56029cb 100644
--- a/crates/ide_assists/src/handlers/inline_function.rs
+++ b/crates/ide_assists/src/handlers/inline_function.rs
@@ -4,7 +4,6 @@ use syntax::{
    ast::{self, edit::AstNodeEdit, ArgListOwner},
    AstNode,
 };
-use test_utils::mark;
 use crate::{
    assist_context::{AssistContext, Assists},
@@ -49,7 +48,7 @@ pub(crate) fn inline_function(acc: &mut Assists, ctx: &AssistContext) -> Option<
    if arguments.len() != parameters.len() {
        // Can't inline the function because they've passed the wrong number of
        // arguments to this function
-        mark::hit!(inline_function_incorrect_number_of_arguments);
+        cov_mark::hit!(inline_function_incorrect_number_of_arguments);
        return None;
    }
@@ -155,7 +154,7 @@ fn main() { Foo.bar$0(); }
    #[test]
    fn not_applicable_when_incorrect_number_of_parameters_are_provided() {
-        mark::check!(inline_function_incorrect_number_of_arguments);
+        cov_mark::check!(inline_function_incorrect_number_of_arguments);
        check_assist_not_applicable(
            inline_function,
            r#"
diff --git a/crates/ide_assists/src/handlers/inline_local_variable.rs b/crates/ide_assists/src/handlers/inline_local_variable.rs
index da5522670..ea1466dc8 100644
--- a/crates/ide_assists/src/handlers/inline_local_variable.rs
+++ b/crates/ide_assists/src/handlers/inline_local_variable.rs
@@ -4,7 +4,6 @@ use syntax::{
    ast::{self, AstNode, AstToken},
    TextRange,
 };
-use test_utils::mark;
 use crate::{
    assist_context::{AssistContext, Assists},
@@ -34,11 +33,11 @@ pub(crate) fn inline_local_variable(acc: &mut Assists, ctx: &AssistContext) -> O
        _ => return None,
    };
    if bind_pat.mut_token().is_some() {
-        mark::hit!(test_not_inline_mut_variable);
+        cov_mark::hit!(test_not_inline_mut_variable);
        return None;
    }
    if !bind_pat.syntax().text_range().contains_inclusive(ctx.offset()) {
-        mark::hit!(not_applicable_outside_of_bind_pat);
+        cov_mark::hit!(not_applicable_outside_of_bind_pat);
        return None;
    }
    let initializer_expr = let_stmt.initializer()?;
@@ -47,7 +46,7 @@ pub(crate) fn inline_local_variable(acc: &mut Assists, ctx: &AssistContext) -> O
    let def = Definition::Local(def);
    let usages = def.usages(&ctx.sema).all();
    if usages.is_empty() {
-        mark::hit!(test_not_applicable_if_variable_unused);
+        cov_mark::hit!(test_not_applicable_if_variable_unused);
        return None;
    };
@@ -130,7 +129,7 @@ pub(crate) fn inline_local_variable(acc: &mut Assists, ctx: &AssistContext) -> O
                        Some(name_ref)
                            if ast::RecordExprField::for_field_name(name_ref).is_some() =>
                        {
-                            mark::hit!(inline_field_shorthand);
+                            cov_mark::hit!(inline_field_shorthand);
                            builder.insert(reference.range.end(), format!(": {}", replacement));
                        }
                        _ => builder.replace(reference.range, replacement),
@@ -143,8 +142,6 @@ pub(crate) fn inline_local_variable(acc: &mut Assists, ctx: &AssistContext) -> O
 #[cfg(test)]
 mod tests {
-    use test_utils::mark;
    use crate::tests::{check_assist, check_assist_not_applicable};
    use super::*;
@@ -351,7 +348,7 @@ fn foo() {
    #[test]
    fn test_not_inline_mut_variable() {
-        mark::check!(test_not_inline_mut_variable);
+        cov_mark::check!(test_not_inline_mut_variable);
        check_assist_not_applicable(
            inline_local_variable,
            r"
@@ -684,7 +681,7 @@ fn foo() {
    #[test]
    fn inline_field_shorthand() {
-        mark::check!(inline_field_shorthand);
+        cov_mark::check!(inline_field_shorthand);
        check_assist(
            inline_local_variable,
            r"
@@ -705,7 +702,7 @@ fn main() {
    #[test]
    fn test_not_applicable_if_variable_unused() {
-        mark::check!(test_not_applicable_if_variable_unused);
+        cov_mark::check!(test_not_applicable_if_variable_unused);
        check_assist_not_applicable(
            inline_local_variable,
            r"
@@ -718,7 +715,7 @@ fn foo() {
    #[test]
    fn not_applicable_outside_of_bind_pat() {
-        mark::check!(not_applicable_outside_of_bind_pat);
+        cov_mark::check!(not_applicable_outside_of_bind_pat);
        check_assist_not_applicable(
            inline_local_variable,
            r"
diff --git a/crates/ide_assists/src/handlers/move_module_to_file.rs b/crates/ide_assists/src/handlers/move_module_to_file.rs
index 91c395c1b..6e685b4b2 100644
--- a/crates/ide_assists/src/handlers/move_module_to_file.rs
+++ b/crates/ide_assists/src/handlers/move_module_to_file.rs
@@ -5,7 +5,6 @@ use syntax::{
    ast::{self, edit::AstNodeEdit, NameOwner},
    AstNode, TextRange,
 };
-use test_utils::mark;
 use crate::{AssistContext, AssistId, AssistKind, Assists};
@@ -28,7 +27,7 @@ pub(crate) fn move_module_to_file(acc: &mut Assists, ctx: &AssistContext) -> Opt
    let l_curly_offset = module_items.syntax().text_range().start();
    if l_curly_offset <= ctx.offset() {
-        mark::hit!(available_before_curly);
+        cov_mark::hit!(available_before_curly);
        return None;
    }
    let target = TextRange::new(module_ast.syntax().text_range().start(), l_curly_offset);
@@ -182,7 +181,7 @@ pub(crate) mod tests;
    #[test]
    fn available_before_curly() {
-        mark::check!(available_before_curly);
+        cov_mark::check!(available_before_curly);
        check_assist_not_applicable(move_module_to_file, r#"mod m { $0 }"#);
    }
 }
diff --git a/crates/ide_assists/src/handlers/pull_assignment_up.rs b/crates/ide_assists/src/handlers/pull_assignment_up.rs
index 377ed4f2f..04bae4e58 100644
--- a/crates/ide_assists/src/handlers/pull_assignment_up.rs
+++ b/crates/ide_assists/src/handlers/pull_assignment_up.rs
@@ -2,7 +2,6 @@ use syntax::{
    ast::{self, edit::AstNodeEdit, make},
    AstNode,
 };
-use test_utils::mark;
 use crate::{
    assist_context::{AssistContext, Assists},
@@ -104,7 +103,7 @@ fn exprify_if(
            ast::ElseBranch::Block(exprify_block(block, sema, name)?)
        }
        ast::ElseBranch::IfExpr(expr) => {
-            mark::hit!(test_pull_assignment_up_chained_if);
+            cov_mark::hit!(test_pull_assignment_up_chained_if);
            ast::ElseBranch::IfExpr(ast::IfExpr::cast(
                exprify_if(&expr, sema, name)?.syntax().to_owned(),
            )?)
@@ -144,7 +143,7 @@ fn is_equivalent(
 ) -> bool {
    match (expr0, expr1) {
        (ast::Expr::FieldExpr(field_expr0), ast::Expr::FieldExpr(field_expr1)) => {
-            mark::hit!(test_pull_assignment_up_field_assignment);
+            cov_mark::hit!(test_pull_assignment_up_field_assignment);
            sema.resolve_field(field_expr0) == sema.resolve_field(field_expr1)
        }
        (ast::Expr::PathExpr(path0), ast::Expr::PathExpr(path1)) => {
@@ -160,7 +159,7 @@ fn is_equivalent(
            if prefix0.op_kind() == Some(ast::PrefixOp::Deref)
                && prefix1.op_kind() == Some(ast::PrefixOp::Deref) =>
        {
-            mark::hit!(test_pull_assignment_up_deref);
+            cov_mark::hit!(test_pull_assignment_up_deref);
            if let (Some(prefix0), Some(prefix1)) = (prefix0.expr(), prefix1.expr()) {
                is_equivalent(sema, &prefix0, &prefix1)
            } else {
@@ -263,7 +262,7 @@ fn foo() {
    #[test]
    fn test_pull_assignment_up_chained_if() {
-        mark::check!(test_pull_assignment_up_chained_if);
+        cov_mark::check!(test_pull_assignment_up_chained_if);
        check_assist(
            pull_assignment_up,
            r#"
@@ -379,7 +378,7 @@ fn foo() {
    #[test]
    fn test_pull_assignment_up_field_assignment() {
-        mark::check!(test_pull_assignment_up_field_assignment);
+        cov_mark::check!(test_pull_assignment_up_field_assignment);
        check_assist(
            pull_assignment_up,
            r#"
@@ -411,7 +410,7 @@ fn foo() {
    #[test]
    fn test_pull_assignment_up_deref() {
-        mark::check!(test_pull_assignment_up_deref);
+        cov_mark::check!(test_pull_assignment_up_deref);
        check_assist(
            pull_assignment_up,
            r#"
diff --git a/crates/ide_assists/src/handlers/qualify_path.rs b/crates/ide_assists/src/handlers/qualify_path.rs
index d84ca0e55..d3e34e540 100644
--- a/crates/ide_assists/src/handlers/qualify_path.rs
+++ b/crates/ide_assists/src/handlers/qualify_path.rs
@@ -8,7 +8,6 @@ use syntax::{
    ast::{make, ArgListOwner},
    AstNode,
 };
-use test_utils::mark;
 use crate::{
    assist_context::{AssistContext, Assists},
@@ -47,25 +46,25 @@ pub(crate) fn qualify_path(acc: &mut Assists, ctx: &AssistContext) -> Option<()>
    let qualify_candidate = match candidate {
        ImportCandidate::Path(candidate) => {
            if candidate.qualifier.is_some() {
-                mark::hit!(qualify_path_qualifier_start);
+                cov_mark::hit!(qualify_path_qualifier_start);
                let path = ast::Path::cast(syntax_under_caret)?;
                let (prev_segment, segment) = (path.qualifier()?.segment()?, path.segment()?);
                QualifyCandidate::QualifierStart(segment, prev_segment.generic_arg_list())
            } else {
-                mark::hit!(qualify_path_unqualified_name);
+                cov_mark::hit!(qualify_path_unqualified_name);
                let path = ast::Path::cast(syntax_under_caret)?;
                let generics = path.segment()?.generic_arg_list();
                QualifyCandidate::UnqualifiedName(generics)
            }
        }
        ImportCandidate::TraitAssocItem(_) => {
-            mark::hit!(qualify_path_trait_assoc_item);
+            cov_mark::hit!(qualify_path_trait_assoc_item);
            let path = ast::Path::cast(syntax_under_caret)?;
            let (qualifier, segment) = (path.qualifier()?, path.segment()?);
            QualifyCandidate::TraitAssocItem(qualifier, segment)
        }
        ImportCandidate::TraitMethod(_) => {
-            mark::hit!(qualify_path_trait_method);
+            cov_mark::hit!(qualify_path_trait_method);
            let mcall_expr = ast::MethodCallExpr::cast(syntax_under_caret)?;
            QualifyCandidate::TraitMethod(ctx.sema.db, mcall_expr)
        }
@@ -212,7 +211,7 @@ mod tests {
    #[test]
    fn applicable_when_found_an_import_partial() {
-        mark::check!(qualify_path_unqualified_name);
+        cov_mark::check!(qualify_path_unqualified_name);
        check_assist(
            qualify_path,
            r"
@@ -504,7 +503,7 @@ fn main() {
    #[test]
    fn associated_struct_const() {
-        mark::check!(qualify_path_qualifier_start);
+        cov_mark::check!(qualify_path_qualifier_start);
        check_assist(
            qualify_path,
            r"
@@ -605,7 +604,7 @@ fn main() {
    #[test]
    fn associated_trait_const() {
-        mark::check!(qualify_path_trait_assoc_item);
+        cov_mark::check!(qualify_path_trait_assoc_item);
        check_assist(
            qualify_path,
            r"
@@ -675,7 +674,7 @@ fn main() {
    #[test]
    fn trait_method() {
-        mark::check!(qualify_path_trait_method);
+        cov_mark::check!(qualify_path_trait_method);
        check_assist(
            qualify_path,
            r"
diff --git a/crates/ide_assists/src/handlers/raw_string.rs b/crates/ide_assists/src/handlers/raw_string.rs
index d95267607..d0f1613f3 100644
--- a/crates/ide_assists/src/handlers/raw_string.rs
+++ b/crates/ide_assists/src/handlers/raw_string.rs
@@ -1,7 +1,6 @@
 use std::borrow::Cow;
 use syntax::{ast, AstToken, TextRange, TextSize};
-use test_utils::mark;
 use crate::{AssistContext, AssistId, AssistKind, Assists};
@@ -149,7 +148,7 @@ pub(crate) fn remove_hash(acc: &mut Assists, ctx: &AssistContext) -> Option<()>
    let internal_text = &text[token.text_range_between_quotes()? - text_range.start()];
    if existing_hashes == required_hashes(internal_text) {
-        mark::hit!(cant_remove_required_hash);
+        cov_mark::hit!(cant_remove_required_hash);
        return None;
    }
@@ -182,8 +181,6 @@ fn test_required_hashes() {
 #[cfg(test)]
 mod tests {
-    use test_utils::mark;
    use crate::tests::{check_assist, check_assist_not_applicable, check_assist_target};
    use super::*;
@@ -396,7 +393,7 @@ string"###;
    #[test]
    fn cant_remove_required_hash() {
-        mark::check!(cant_remove_required_hash);
+        cov_mark::check!(cant_remove_required_hash);
        check_assist_not_applicable(
            remove_hash,
            r##"
diff --git a/crates/ide_assists/src/handlers/remove_unused_param.rs b/crates/ide_assists/src/handlers/remove_unused_param.rs
index c961680e2..2699d2861 100644
--- a/crates/ide_assists/src/handlers/remove_unused_param.rs
+++ b/crates/ide_assists/src/handlers/remove_unused_param.rs
@@ -4,7 +4,7 @@ use syntax::{
    ast::{self, ArgListOwner},
    AstNode, SourceFile, SyntaxKind, SyntaxNode, TextRange, T,
 };
-use test_utils::mark;
 use SyntaxKind::WHITESPACE;
 use crate::{
@@ -49,7 +49,7 @@ pub(crate) fn remove_unused_param(acc: &mut Assists, ctx: &AssistContext) -> Opt
        Definition::Local(local)
    };
    if param_def.usages(&ctx.sema).at_least_one() {
-        mark::hit!(keep_used);
+        cov_mark::hit!(keep_used);
        return None;
    }
    acc.add(
@@ -243,7 +243,7 @@ fn b2() { foo(9) }
    #[test]
    fn keep_used() {
-        mark::check!(keep_used);
+        cov_mark::check!(keep_used);
        check_assist_not_applicable(
            remove_unused_param,
            r#"
diff --git a/crates/ide_assists/src/handlers/reorder_fields.rs b/crates/ide_assists/src/handlers/reorder_fields.rs
index fba7d6ddb..794c89323 100644
--- a/crates/ide_assists/src/handlers/reorder_fields.rs
+++ b/crates/ide_assists/src/handlers/reorder_fields.rs
@@ -4,7 +4,6 @@ use rustc_hash::FxHashMap;
 use hir::{Adt, ModuleDef, PathResolution, Semantics, Struct};
 use ide_db::RootDatabase;
 use syntax::{algo, ast, match_ast, AstNode, SyntaxKind, SyntaxKind::*, SyntaxNode};
-use test_utils::mark;
 use crate::{AssistContext, AssistId, AssistKind, Assists};
@@ -39,7 +38,7 @@ fn reorder<R: AstNode>(acc: &mut Assists, ctx: &AssistContext) -> Option<()> {
    });
    if sorted_fields == fields {
-        mark::hit!(reorder_sorted_fields);
+        cov_mark::hit!(reorder_sorted_fields);
        return None;
    }
@@ -109,15 +108,13 @@ fn compute_fields_ranks(path: &ast::Path, ctx: &AssistContext) -> Option<FxHashM
 #[cfg(test)]
 mod tests {
-    use test_utils::mark;
    use crate::tests::{check_assist, check_assist_not_applicable};
    use super::*;
    #[test]
    fn reorder_sorted_fields() {
-        mark::check!(reorder_sorted_fields);
+        cov_mark::check!(reorder_sorted_fields);
        check_assist_not_applicable(
            reorder_fields,
            r#"
diff --git a/crates/ide_assists/src/handlers/reorder_impl.rs b/crates/ide_assists/src/handlers/reorder_impl.rs
index 309f291c8..edf4b0bfe 100644
--- a/crates/ide_assists/src/handlers/reorder_impl.rs
+++ b/crates/ide_assists/src/handlers/reorder_impl.rs
@@ -8,7 +8,6 @@ use syntax::{
    ast::{self, NameOwner},
    AstNode,
 };
-use test_utils::mark;
 use crate::{AssistContext, AssistId, AssistKind, Assists};
@@ -71,7 +70,7 @@ pub(crate) fn reorder_impl(acc: &mut Assists, ctx: &AssistContext) -> Option<()>
    // Don't edit already sorted methods:
    if methods == sorted {
-        mark::hit!(not_applicable_if_sorted);
+        cov_mark::hit!(not_applicable_if_sorted);
        return None;
    }
@@ -121,15 +120,13 @@ fn get_methods(items: &ast::AssocItemList) -> Vec<ast::Fn> {
 #[cfg(test)]
 mod tests {
-    use test_utils::mark;
    use crate::tests::{check_assist, check_assist_not_applicable};
    use super::*;
    #[test]
    fn not_applicable_if_sorted() {
-        mark::check!(not_applicable_if_sorted);
+        cov_mark::check!(not_applicable_if_sorted);
        check_assist_not_applicable(
            reorder_impl,
            r#"
diff --git a/crates/ide_assists/src/handlers/replace_for_loop_with_for_each.rs b/crates/ide_assists/src/handlers/replace_for_loop_with_for_each.rs
index 27da28bc0..50b05ab0b 100644
--- a/crates/ide_assists/src/handlers/replace_for_loop_with_for_each.rs
+++ b/crates/ide_assists/src/handlers/replace_for_loop_with_for_each.rs
@@ -3,7 +3,6 @@ use hir::known;
 use ide_db::helpers::FamousDefs;
 use stdx::format_to;
 use syntax::{ast, AstNode};
-use test_utils::mark;
 use crate::{AssistContext, AssistId, AssistKind, Assists};
@@ -34,7 +33,7 @@ pub(crate) fn replace_for_loop_with_for_each(acc: &mut Assists, ctx: &AssistCont
    let pat = for_loop.pat()?;
    let body = for_loop.loop_body()?;
    if body.syntax().text_range().start() < ctx.offset() {
-        mark::hit!(not_available_in_body);
+        cov_mark::hit!(not_available_in_body);
        return None;
    }
@@ -187,7 +186,7 @@ fn main() {
    #[test]
    fn not_available_in_body() {
-        mark::check!(not_available_in_body);
+        cov_mark::check!(not_available_in_body);
        check_assist_not_applicable(
            replace_for_loop_with_for_each,
            r"
diff --git a/crates/ide_assists/src/handlers/replace_qualified_name_with_use.rs b/crates/ide_assists/src/handlers/replace_qualified_name_with_use.rs
index 55481af34..36d2e0331 100644
--- a/crates/ide_assists/src/handlers/replace_qualified_name_with_use.rs
+++ b/crates/ide_assists/src/handlers/replace_qualified_name_with_use.rs
@@ -1,6 +1,5 @@
 use ide_db::helpers::insert_use::{insert_use, ImportScope};
 use syntax::{algo::SyntaxRewriter, ast, match_ast, AstNode, SyntaxNode};
-use test_utils::mark;
 use crate::{AssistContext, AssistId, AssistKind, Assists};
@@ -27,7 +26,7 @@ pub(crate) fn replace_qualified_name_with_use(
        return None;
    }
    if path.qualifier().is_none() {
-        mark::hit!(dont_import_trivial_paths);
+        cov_mark::hit!(dont_import_trivial_paths);
        return None;
    }
@@ -458,7 +457,7 @@ impl Debug for Foo {
    #[test]
    fn dont_import_trivial_paths() {
-        mark::check!(dont_import_trivial_paths);
+        cov_mark::check!(dont_import_trivial_paths);
        check_assist_not_applicable(
            replace_qualified_name_with_use,
            r"
diff --git a/crates/ide_assists/src/handlers/unmerge_use.rs b/crates/ide_assists/src/handlers/unmerge_use.rs
index 3dbef8e51..616af7c2e 100644
--- a/crates/ide_assists/src/handlers/unmerge_use.rs
+++ b/crates/ide_assists/src/handlers/unmerge_use.rs
@@ -3,7 +3,6 @@ use syntax::{
    ast::{self, edit::AstNodeEdit, VisibilityOwner},
    AstNode, SyntaxKind,
 };
-use test_utils::mark;
 use crate::{
    assist_context::{AssistContext, Assists},
@@ -27,7 +26,7 @@ pub(crate) fn unmerge_use(acc: &mut Assists, ctx: &AssistContext) -> Option<()>
    let tree_list = tree.syntax().parent().and_then(ast::UseTreeList::cast)?;
    if tree_list.use_trees().count() < 2 {
-        mark::hit!(skip_single_use_item);
+        cov_mark::hit!(skip_single_use_item);
        return None;
    }
@@ -89,7 +88,7 @@ mod tests {
    #[test]
    fn skip_single_use_item() {
-        mark::check!(skip_single_use_item);
+        cov_mark::check!(skip_single_use_item);
        check_assist_not_applicable(
            unmerge_use,
            r"
diff --git a/crates/ide_assists/src/handlers/wrap_return_type_in_result.rs b/crates/ide_assists/src/handlers/wrap_return_type_in_result.rs
index fec16fc49..e838630ea 100644
--- a/crates/ide_assists/src/handlers/wrap_return_type_in_result.rs
+++ b/crates/ide_assists/src/handlers/wrap_return_type_in_result.rs
@@ -4,7 +4,6 @@ use syntax::{
    ast::{self, make, BlockExpr, Expr, LoopBodyOwner},
    match_ast, AstNode, SyntaxNode,
 };
-use test_utils::mark;
 use crate::{AssistContext, AssistId, AssistKind, Assists};
@@ -39,7 +38,7 @@ pub(crate) fn wrap_return_type_in_result(acc: &mut Assists, ctx: &AssistContext)
    let first_part_ret_type = ret_type_str.splitn(2, '<').next();
    if let Some(ret_type_first_part) = first_part_ret_type {
        if ret_type_first_part.ends_with("Result") {
-            mark::hit!(wrap_return_type_in_result_simple_return_type_already_result);
+            cov_mark::hit!(wrap_return_type_in_result_simple_return_type_already_result);
            return None;
        }
    }
@@ -367,7 +366,7 @@ fn foo() -> std::result::Result<i32$0, String> {
    #[test]
    fn wrap_return_type_in_result_simple_return_type_already_result() {
-        mark::check!(wrap_return_type_in_result_simple_return_type_already_result);
+        cov_mark::check!(wrap_return_type_in_result_simple_return_type_already_result);
        check_assist_not_applicable(
            wrap_return_type_in_result,
            r#"
diff --git a/crates/ide_completion/Cargo.toml b/crates/ide_completion/Cargo.toml
index c09101ccb..84aa40736 100644
--- a/crates/ide_completion/Cargo.toml
+++ b/crates/ide_completion/Cargo.toml
@@ -10,6 +10,7 @@ edition = "2018"
 doctest = false
 [dependencies]
+cov-mark = "1.1"
 itertools = "0.10.0"
 log = "0.4.8"
 rustc-hash = "1.1.0"
diff --git a/crates/ide_completion/src/completions/dot.rs b/crates/ide_completion/src/completions/dot.rs
index 084d7721d..5ee9a9f07 100644
--- a/crates/ide_completion/src/completions/dot.rs
+++ b/crates/ide_completion/src/completions/dot.rs
@@ -2,7 +2,6 @@
 use hir::{HasVisibility, Type};
 use rustc_hash::FxHashSet;
-use test_utils::mark;
 use crate::{context::CompletionContext, Completions};
@@ -19,7 +18,7 @@ pub(crate) fn complete_dot(acc: &mut Completions, ctx: &CompletionContext) {
    };
    if ctx.is_call {
-        mark::hit!(test_no_struct_field_completion_for_method_call);
+        cov_mark::hit!(test_no_struct_field_completion_for_method_call);
    } else {
        complete_fields(acc, ctx, &receiver_ty);
    }
@@ -62,7 +61,6 @@ fn complete_methods(acc: &mut Completions, ctx: &CompletionContext, receiver: &T
 #[cfg(test)]
 mod tests {
    use expect_test::{expect, Expect};
-    use test_utils::mark;
    use crate::{test_utils::completion_list, CompletionKind};
@@ -122,7 +120,7 @@ impl A {
    #[test]
    fn test_no_struct_field_completion_for_method_call() {
-        mark::check!(test_no_struct_field_completion_for_method_call);
+        cov_mark::check!(test_no_struct_field_completion_for_method_call);
        check(
            r#"
 struct A { the_field: u32 }
diff --git a/crates/ide_completion/src/completions/flyimport.rs b/crates/ide_completion/src/completions/flyimport.rs
index da8375af9..f34764b61 100644
--- a/crates/ide_completion/src/completions/flyimport.rs
+++ b/crates/ide_completion/src/completions/flyimport.rs
@@ -55,7 +55,6 @@ use ide_db::helpers::{
 };
 use rustc_hash::FxHashSet;
 use syntax::{AstNode, SyntaxNode, T};
-use test_utils::mark;
 use crate::{
    context::CompletionContext,
@@ -174,7 +173,7 @@ fn import_assets(ctx: &CompletionContext, fuzzy_name: String) -> Option<ImportAs
        if matches!(assets_for_path.as_ref()?.import_candidate(), ImportCandidate::Path(_))
            && fuzzy_name_length < 2
        {
-            mark::hit!(ignore_short_input_for_path);
+            cov_mark::hit!(ignore_short_input_for_path);
            None
        } else {
            assets_for_path
@@ -186,7 +185,7 @@ fn compute_fuzzy_completion_order_key(
    proposed_mod_path: &ModPath,
    user_input_lowercased: &str,
 ) -> usize {
-    mark::hit!(certain_fuzzy_order_test);
+    cov_mark::hit!(certain_fuzzy_order_test);
    let proposed_import_name = match proposed_mod_path.segments().last() {
        Some(name) => name.to_string().to_lowercase(),
        None => return usize::MAX,
@@ -200,7 +199,6 @@ fn compute_fuzzy_completion_order_key(
 #[cfg(test)]
 mod tests {
    use expect_test::{expect, Expect};
-    use test_utils::mark;
    use crate::{
        item::CompletionKind,
@@ -295,7 +293,7 @@ fn main() {
    #[test]
    fn short_paths_are_ignored() {
-        mark::check!(ignore_short_input_for_path);
+        cov_mark::check!(ignore_short_input_for_path);
        check(
            r#"
@@ -319,7 +317,7 @@ fn main() {
    #[test]
    fn fuzzy_completions_come_in_specific_order() {
-        mark::check!(certain_fuzzy_order_test);
+        cov_mark::check!(certain_fuzzy_order_test);
        check(
            r#"
 //- /lib.rs crate:dep
diff --git a/crates/ide_completion/src/completions/keyword.rs b/crates/ide_completion/src/completions/keyword.rs
index 03c6dd454..80aa9fb06 100644
--- a/crates/ide_completion/src/completions/keyword.rs
+++ b/crates/ide_completion/src/completions/keyword.rs
@@ -3,7 +3,6 @@
 use std::iter;
 use syntax::SyntaxKind;
-use test_utils::mark;
 use crate::{CompletionContext, CompletionItem, CompletionItemKind, CompletionKind, Completions};
@@ -47,11 +46,11 @@ pub(crate) fn complete_use_tree_keyword(acc: &mut Completions, ctx: &CompletionC
 pub(crate) fn complete_expr_keyword(acc: &mut Completions, ctx: &CompletionContext) {
    if ctx.token.kind() == SyntaxKind::COMMENT {
-        mark::hit!(no_keyword_completion_in_comments);
+        cov_mark::hit!(no_keyword_completion_in_comments);
        return;
    }
    if ctx.record_lit_syntax.is_some() {
-        mark::hit!(no_keyword_completion_in_record_lit);
+        cov_mark::hit!(no_keyword_completion_in_record_lit);
        return;
    }
@@ -172,7 +171,7 @@ fn add_keyword(ctx: &CompletionContext, acc: &mut Completions, kw: &str, snippet
        Some(cap) => {
            let tmp;
            let snippet = if snippet.ends_with('}') && ctx.incomplete_let {
-                mark::hit!(let_semi);
+                cov_mark::hit!(let_semi);
                tmp = format!("{};", snippet);
                &tmp
            } else {
@@ -188,7 +187,6 @@ fn add_keyword(ctx: &CompletionContext, acc: &mut Completions, kw: &str, snippet
 #[cfg(test)]
 mod tests {
    use expect_test::{expect, Expect};
-    use test_utils::mark;
    use crate::{
        test_utils::{check_edit, completion_list},
@@ -494,7 +492,7 @@ fn quux() -> i32 {
    #[test]
    fn no_keyword_completion_in_comments() {
-        mark::check!(no_keyword_completion_in_comments);
+        cov_mark::check!(no_keyword_completion_in_comments);
        check(
            r#"
 fn test() {
@@ -599,7 +597,7 @@ struct Foo {
    #[test]
    fn skip_struct_initializer() {
-        mark::check!(no_keyword_completion_in_record_lit);
+        cov_mark::check!(no_keyword_completion_in_record_lit);
        check(
            r#"
 struct Foo {
@@ -643,7 +641,7 @@ fn foo() {
    #[test]
    fn let_semi() {
-        mark::check!(let_semi);
+        cov_mark::check!(let_semi);
        check_edit(
            "match",
            r#"
diff --git a/crates/ide_completion/src/completions/qualified_path.rs b/crates/ide_completion/src/completions/qualified_path.rs
index 72fb757b1..df74b739e 100644
--- a/crates/ide_completion/src/completions/qualified_path.rs
+++ b/crates/ide_completion/src/completions/qualified_path.rs
@@ -3,7 +3,6 @@
 use hir::{Adt, HasVisibility, PathResolution, ScopeDef};
 use rustc_hash::FxHashSet;
 use syntax::AstNode;
-use test_utils::mark;
 use crate::{CompletionContext, Completions};
@@ -39,7 +38,7 @@ pub(crate) fn complete_qualified_path(acc: &mut Completions, ctx: &CompletionCon
                        if let Some(name_ref) = ctx.name_ref_syntax.as_ref() {
                            if name_ref.syntax().text() == name.to_string().as_str() {
                                // for `use self::foo$0`, don't suggest `foo` as a completion
-                                mark::hit!(dont_complete_current_use);
+                                cov_mark::hit!(dont_complete_current_use);
                                continue;
                            }
                        }
@@ -155,7 +154,6 @@ pub(crate) fn complete_qualified_path(acc: &mut Completions, ctx: &CompletionCon
 #[cfg(test)]
 mod tests {
    use expect_test::{expect, Expect};
-    use test_utils::mark;
    use crate::{
        test_utils::{check_edit, completion_list},
@@ -174,7 +172,7 @@ mod tests {
    #[test]
    fn dont_complete_current_use() {
-        mark::check!(dont_complete_current_use);
+        cov_mark::check!(dont_complete_current_use);
        check(r#"use self::foo$0;"#, expect![[""]]);
    }
diff --git a/crates/ide_completion/src/completions/unqualified_path.rs b/crates/ide_completion/src/completions/unqualified_path.rs
index e9d0ff665..044dfd160 100644
--- a/crates/ide_completion/src/completions/unqualified_path.rs
+++ b/crates/ide_completion/src/completions/unqualified_path.rs
@@ -2,7 +2,6 @@
 use hir::ScopeDef;
 use syntax::AstNode;
-use test_utils::mark;
 use crate::{CompletionContext, Completions};
@@ -30,13 +29,13 @@ pub(crate) fn complete_unqualified_path(acc: &mut Completions, ctx: &CompletionC
    ctx.scope.process_all_names(&mut |name, res| {
        if let ScopeDef::GenericParam(hir::GenericParam::LifetimeParam(_)) = res {
-            mark::hit!(skip_lifetime_completion);
+            cov_mark::hit!(skip_lifetime_completion);
            return;
        }
        if ctx.use_item_syntax.is_some() {
            if let (ScopeDef::Unknown, Some(name_ref)) = (&res, &ctx.name_ref_syntax) {
                if name_ref.syntax().text() == name.to_string().as_str() {
-                    mark::hit!(self_fulfilling_completion);
+                    cov_mark::hit!(self_fulfilling_completion);
                    return;
                }
            }
@@ -48,7 +47,6 @@ pub(crate) fn complete_unqualified_path(acc: &mut Completions, ctx: &CompletionC
 #[cfg(test)]
 mod tests {
    use expect_test::{expect, Expect};
-    use test_utils::mark;
    use crate::{
        test_utils::{check_edit, completion_list_with_config, TEST_CONFIG},
@@ -66,7 +64,7 @@ mod tests {
    #[test]
    fn self_fulfilling_completion() {
-        mark::check!(self_fulfilling_completion);
+        cov_mark::check!(self_fulfilling_completion);
        check(
            r#"
 use foo$0
@@ -185,7 +183,7 @@ fn quux() {
    #[test]
    fn completes_if_prefix_is_keyword() {
-        mark::check!(completes_if_prefix_is_keyword);
+        cov_mark::check!(completes_if_prefix_is_keyword);
        check_edit(
            "wherewolf",
            r#"
@@ -223,7 +221,7 @@ fn main() {
    #[test]
    fn does_not_complete_lifetimes() {
-        mark::check!(skip_lifetime_completion);
+        cov_mark::check!(skip_lifetime_completion);
        check(
            r#"fn quux<'a>() { $0 }"#,
            expect![[r#"
diff --git a/crates/ide_completion/src/context.rs b/crates/ide_completion/src/context.rs
index 3db357855..17d9a3adf 100644
--- a/crates/ide_completion/src/context.rs
+++ b/crates/ide_completion/src/context.rs
@@ -7,7 +7,7 @@ use syntax::{
    algo::find_node_at_offset, ast, match_ast, AstNode, NodeOrToken, SyntaxKind::*, SyntaxNode,
    SyntaxToken, TextRange, TextSize,
 };
-use test_utils::mark;
 use text_edit::Indel;
 use crate::{
@@ -240,7 +240,7 @@ impl<'a> CompletionContext<'a> {
        // check kind of macro-expanded token, but use range of original token
        let kind = self.token.kind();
        if kind == IDENT || kind == UNDERSCORE || kind.is_keyword() {
-            mark::hit!(completes_if_prefix_is_keyword);
+            cov_mark::hit!(completes_if_prefix_is_keyword);
            self.original_token.text_range()
        } else {
            TextRange::empty(self.position.offset)
diff --git a/crates/ide_completion/src/render.rs b/crates/ide_completion/src/render.rs
index eddaaa6f3..dcfac23c5 100644
--- a/crates/ide_completion/src/render.rs
+++ b/crates/ide_completion/src/render.rs
@@ -15,7 +15,6 @@ use hir::{
 };
 use ide_db::{helpers::SnippetCap, RootDatabase, SymbolKind};
 use syntax::TextRange;
-use test_utils::mark;
 use crate::{
    item::ImportEdit, CompletionContext, CompletionItem, CompletionItemKind, CompletionKind,
@@ -115,11 +114,11 @@ impl<'a> RenderContext<'a> {
    fn active_name_and_type(&self) -> Option<(String, Type)> {
        if let Some(record_field) = &self.completion.record_field_syntax {
-            mark::hit!(record_field_type_match);
+            cov_mark::hit!(record_field_type_match);
            let (struct_field, _local) = self.completion.sema.resolve_record_field(record_field)?;
            Some((struct_field.name(self.db()).to_string(), struct_field.signature_ty(self.db())))
        } else if let Some(active_parameter) = &self.completion.active_parameter {
-            mark::hit!(active_param_type_match);
+            cov_mark::hit!(active_param_type_match);
            Some((active_parameter.name.clone(), active_parameter.ty.clone()))
        } else {
            None
@@ -269,7 +268,7 @@ impl<'a> Render<'a> {
                    _ => false,
                };
                if has_non_default_type_params {
-                    mark::hit!(inserts_angle_brackets_for_generics);
+                    cov_mark::hit!(inserts_angle_brackets_for_generics);
                    item = item
                        .lookup_by(local_name.clone())
                        .label(format!("{}<…>", local_name))
@@ -358,7 +357,6 @@ mod tests {
    use std::cmp::Reverse;
    use expect_test::{expect, Expect};
-    use test_utils::mark;
    use crate::{
        test_utils::{check_edit, do_completion, get_all_items, TEST_CONFIG},
@@ -734,7 +732,7 @@ fn foo(s: S) { s.$0 }
    #[test]
    fn no_call_parens_if_fn_ptr_needed() {
-        mark::check!(no_call_parens_if_fn_ptr_needed);
+        cov_mark::check!(no_call_parens_if_fn_ptr_needed);
        check_edit(
            "foo",
            r#"
@@ -758,7 +756,7 @@ fn main() -> ManualVtable {
    #[test]
    fn no_parens_in_use_item() {
-        mark::check!(no_parens_in_use_item);
+        cov_mark::check!(no_parens_in_use_item);
        check_edit(
            "foo",
            r#"
@@ -802,7 +800,7 @@ fn f(foo: &Foo) { foo.foo(); }
    #[test]
    fn inserts_angle_brackets_for_generics() {
-        mark::check!(inserts_angle_brackets_for_generics);
+        cov_mark::check!(inserts_angle_brackets_for_generics);
        check_edit(
            "Vec",
            r#"
@@ -851,7 +849,7 @@ fn foo(xs: Vec<i128>)
    #[test]
    fn active_param_score() {
-        mark::check!(active_param_type_match);
+        cov_mark::check!(active_param_type_match);
        check_scores(
            r#"
 struct S { foo: i64, bar: u32, baz: u32 }
@@ -868,7 +866,7 @@ fn foo(s: S) { test(s.$0) }
    #[test]
    fn record_field_scores() {
-        mark::check!(record_field_type_match);
+        cov_mark::check!(record_field_type_match);
        check_scores(
            r#"
 struct A { foo: i64, bar: u32, baz: u32 }
diff --git a/crates/ide_completion/src/render/builder_ext.rs b/crates/ide_completion/src/render/builder_ext.rs
index d053a988b..95a7596c1 100644
--- a/crates/ide_completion/src/render/builder_ext.rs
+++ b/crates/ide_completion/src/render/builder_ext.rs
@@ -1,7 +1,6 @@
 //! Extensions for `Builder` structure required for item rendering.
 use itertools::Itertools;
-use test_utils::mark;
 use crate::{item::Builder, CompletionContext};
@@ -30,7 +29,7 @@ impl Builder {
            return false;
        }
        if ctx.use_item_syntax.is_some() {
-            mark::hit!(no_parens_in_use_item);
+            cov_mark::hit!(no_parens_in_use_item);
            return false;
        }
        if ctx.is_pattern_call {
@@ -43,7 +42,7 @@ impl Builder {
        // Don't add parentheses if the expected type is some function reference.
        if let Some(ty) = &ctx.expected_type {
            if ty.is_fn() {
-                mark::hit!(no_call_parens_if_fn_ptr_needed);
+                cov_mark::hit!(no_call_parens_if_fn_ptr_needed);
                return false;
            }
        }
@@ -67,7 +66,7 @@ impl Builder {
            None => return self,
        };
        // If not an import, add parenthesis automatically.
-        mark::hit!(inserts_parens_for_function_calls);
+        cov_mark::hit!(inserts_parens_for_function_calls);
        let (snippet, label) = if params.is_empty() {
            (format!("{}()$0", name), format!("{}()", name))
@@ -82,7 +81,7 @@ impl Builder {
                    format!("{}({})$0", name, function_params_snippet)
                }
                _ => {
-                    mark::hit!(suppress_arg_snippets);
+                    cov_mark::hit!(suppress_arg_snippets);
                    format!("{}($0)", name)
                }
            };
diff --git a/crates/ide_completion/src/render/enum_variant.rs b/crates/ide_completion/src/render/enum_variant.rs
index 9214193b4..ed055c1fb 100644
--- a/crates/ide_completion/src/render/enum_variant.rs
+++ b/crates/ide_completion/src/render/enum_variant.rs
@@ -3,7 +3,6 @@
 use hir::{HasAttrs, HirDisplay, ModPath, StructKind};
 use ide_db::SymbolKind;
 use itertools::Itertools;
-use test_utils::mark;
 use crate::{
    item::{CompletionItem, CompletionKind, ImportEdit},
@@ -68,7 +67,7 @@ impl<'a> EnumRender<'a> {
        .detail(self.detail());
        if self.variant_kind == StructKind::Tuple {
-            mark::hit!(inserts_parens_for_tuple_enums);
+            cov_mark::hit!(inserts_parens_for_tuple_enums);
            let params = Params::Anonymous(self.variant.fields(self.ctx.db()).len());
            builder =
                builder.add_call_parens(self.ctx.completion, self.short_qualified_name, params);
@@ -103,13 +102,11 @@ impl<'a> EnumRender<'a> {
 #[cfg(test)]
 mod tests {
-    use test_utils::mark;
    use crate::test_utils::check_edit;
    #[test]
    fn inserts_parens_for_tuple_enums() {
-        mark::check!(inserts_parens_for_tuple_enums);
+        cov_mark::check!(inserts_parens_for_tuple_enums);
        check_edit(
            "Some",
            r#"
diff --git a/crates/ide_completion/src/render/function.rs b/crates/ide_completion/src/render/function.rs
index e46e21d24..5931945a8 100644
--- a/crates/ide_completion/src/render/function.rs
+++ b/crates/ide_completion/src/render/function.rs
@@ -3,7 +3,6 @@
 use hir::{HasSource, HirDisplay, Type};
 use ide_db::SymbolKind;
 use syntax::ast::Fn;
-use test_utils::mark;
 use crate::{
    item::{CompletionItem, CompletionItemKind, CompletionKind, ImportEdit},
@@ -82,7 +81,7 @@ impl<'a> FunctionRender<'a> {
            self.func.method_params(self.ctx.db()).unwrap_or_default()
        } else {
            if let Some(s) = ast_params.self_param() {
-                mark::hit!(parens_for_method_call_as_assoc_fn);
+                cov_mark::hit!(parens_for_method_call_as_assoc_fn);
                params_pats.push(Some(s.to_string()));
            }
            self.func.assoc_fn_params(self.ctx.db())
@@ -114,8 +113,6 @@ impl<'a> FunctionRender<'a> {
 #[cfg(test)]
 mod tests {
-    use test_utils::mark;
    use crate::{
        test_utils::{check_edit, check_edit_with_config, TEST_CONFIG},
        CompletionConfig,
@@ -123,7 +120,7 @@ mod tests {
    #[test]
    fn inserts_parens_for_function_calls() {
-        mark::check!(inserts_parens_for_function_calls);
+        cov_mark::check!(inserts_parens_for_function_calls);
        check_edit(
            "no_args",
            r#"
@@ -191,7 +188,7 @@ fn bar(s: &S) {
    #[test]
    fn parens_for_method_call_as_assoc_fn() {
-        mark::check!(parens_for_method_call_as_assoc_fn);
+        cov_mark::check!(parens_for_method_call_as_assoc_fn);
        check_edit(
            "foo",
            r#"
@@ -213,7 +210,7 @@ fn main() { S::foo(${1:&self})$0 }
    #[test]
    fn suppress_arg_snippets() {
-        mark::check!(suppress_arg_snippets);
+        cov_mark::check!(suppress_arg_snippets);
        check_edit_with_config(
            CompletionConfig { add_call_argument_snippets: false, ..TEST_CONFIG },
            "with_args",
diff --git a/crates/ide_completion/src/render/macro_.rs b/crates/ide_completion/src/render/macro_.rs
index a4535786f..a6cf3e479 100644
--- a/crates/ide_completion/src/render/macro_.rs
+++ b/crates/ide_completion/src/render/macro_.rs
@@ -3,7 +3,6 @@
 use hir::{Documentation, HasSource};
 use ide_db::SymbolKind;
 use syntax::display::macro_label;
-use test_utils::mark;
 use crate::{
    item::{CompletionItem, CompletionKind, ImportEdit},
@@ -57,7 +56,7 @@ impl<'a> MacroRender<'a> {
            }
            None if needs_bang => builder.insert_text(self.banged_name()),
            _ => {
-                mark::hit!(dont_insert_macro_call_parens_unncessary);
+                cov_mark::hit!(dont_insert_macro_call_parens_unncessary);
                builder.insert_text(&self.name)
            }
        };
@@ -125,13 +124,11 @@ fn guess_macro_braces(macro_name: &str, docs: &str) -> (&'static str, &'static s
 #[cfg(test)]
 mod tests {
-    use test_utils::mark;
    use crate::test_utils::check_edit;
    #[test]
    fn dont_insert_macro_call_parens_unncessary() {
-        mark::check!(dont_insert_macro_call_parens_unncessary);
+        cov_mark::check!(dont_insert_macro_call_parens_unncessary);
        check_edit(
            "frobnicate!",
            r#"
diff --git a/crates/ide_db/Cargo.toml b/crates/ide_db/Cargo.toml
index d4612a75e..1f855c621 100644
--- a/crates/ide_db/Cargo.toml
+++ b/crates/ide_db/Cargo.toml
@@ -10,6 +10,7 @@ edition = "2018"
 doctest = false
 [dependencies]
+cov-mark = "1.1"
 log = "0.4.8"
 rayon = "1.5.0"
 fst = { version = "0.4", default-features = false }
diff --git a/crates/ide_db/src/call_info.rs b/crates/ide_db/src/call_info.rs
index 615fa7b0e..d8878aa91 100644
--- a/crates/ide_db/src/call_info.rs
+++ b/crates/ide_db/src/call_info.rs
@@ -7,7 +7,6 @@ use syntax::{
    ast::{self, ArgListOwner},
    match_ast, AstNode, SyntaxNode, SyntaxToken, TextRange, TextSize,
 };
-use test_utils::mark;
 use crate::RootDatabase;
@@ -122,7 +121,7 @@ fn call_info_impl(
        let arg_list_range = arg_list.syntax().text_range();
        if !arg_list_range.contains_inclusive(token.text_range().start()) {
-            mark::hit!(call_info_bad_offset);
+            cov_mark::hit!(call_info_bad_offset);
            return None;
        }
        let param = std::cmp::min(
@@ -162,7 +161,7 @@ impl ActiveParameter {
        let idx = active_parameter?;
        let mut params = signature.params(sema.db);
        if !(idx < params.len()) {
-            mark::hit!(too_many_arguments);
+            cov_mark::hit!(too_many_arguments);
            return None;
        }
        let (pat, ty) = params.swap_remove(idx);
diff --git a/crates/ide_db/src/call_info/tests.rs b/crates/ide_db/src/call_info/tests.rs
index c714cf280..9f84c253c 100644
--- a/crates/ide_db/src/call_info/tests.rs
+++ b/crates/ide_db/src/call_info/tests.rs
@@ -1,7 +1,7 @@
 use crate::RootDatabase;
 use base_db::{fixture::ChangeFixture, FilePosition};
 use expect_test::{expect, Expect};
-use test_utils::{mark, RangeOrOffset};
+use test_utils::RangeOrOffset;
 /// Creates analysis from a multi-file fixture, returns positions marked with $0.
 pub(crate) fn position(ra_fixture: &str) -> (RootDatabase, FilePosition) {
@@ -347,7 +347,7 @@ pub fn foo(mut r: WriteHandler<()>) {
 #[test]
 fn call_info_bad_offset() {
-    mark::check!(call_info_bad_offset);
+    cov_mark::check!(call_info_bad_offset);
    check(
        r#"
 fn foo(x: u32, y: u32) -> u32 {x + y}
diff --git a/crates/ide_db/src/helpers/insert_use.rs b/crates/ide_db/src/helpers/insert_use.rs
index f52aee344..df66d8ea0 100644
--- a/crates/ide_db/src/helpers/insert_use.rs
+++ b/crates/ide_db/src/helpers/insert_use.rs
@@ -13,7 +13,6 @@ use syntax::{
    },
    AstToken, InsertPosition, NodeOrToken, SyntaxElement, SyntaxNode, SyntaxToken,
 };
-use test_utils::mark;
 #[derive(Clone, Copy, Debug, PartialEq, Eq)]
 pub struct InsertUseConfig {
@@ -138,7 +137,7 @@ pub fn insert_use<'a>(
        if add_blank.has_before() {
            if let Some(indent) = indent.clone() {
-                mark::hit!(insert_use_indent_before);
+                cov_mark::hit!(insert_use_indent_before);
                buf.push(indent);
            }
        }
@@ -156,11 +155,11 @@ pub fn insert_use<'a>(
        // only add indentation *after* our stuff if there's another node directly after it
        if add_blank.has_after() && matches!(insert_position, InsertPosition::Before(_)) {
            if let Some(indent) = indent {
-                mark::hit!(insert_use_indent_after);
+                cov_mark::hit!(insert_use_indent_after);
                buf.push(indent);
            }
        } else if add_blank.has_after() && matches!(insert_position, InsertPosition::After(_)) {
-            mark::hit!(insert_use_no_indent_after);
+            cov_mark::hit!(insert_use_no_indent_after);
        }
        buf
diff --git a/crates/ide_db/src/helpers/insert_use/tests.rs b/crates/ide_db/src/helpers/insert_use/tests.rs
index 67d0d6fb6..3d151e629 100644
--- a/crates/ide_db/src/helpers/insert_use/tests.rs
+++ b/crates/ide_db/src/helpers/insert_use/tests.rs
@@ -51,7 +51,7 @@ use std::bar::G;",
 #[test]
 fn insert_start_indent() {
-    mark::check!(insert_use_indent_after);
+    cov_mark::check!(insert_use_indent_after);
    check_none(
        "std::bar::AA",
        r"
@@ -120,7 +120,7 @@ use std::bar::ZZ;",
 #[test]
 fn insert_end_indent() {
-    mark::check!(insert_use_indent_before);
+    cov_mark::check!(insert_use_indent_before);
    check_none(
        "std::bar::ZZ",
        r"
@@ -255,7 +255,7 @@ fn insert_empty_file() {
 #[test]
 fn insert_empty_module() {
-    mark::check!(insert_use_no_indent_after);
+    cov_mark::check!(insert_use_no_indent_after);
    check(
        "foo::bar",
        "mod x {}",
diff --git a/crates/ide_ssr/Cargo.toml b/crates/ide_ssr/Cargo.toml
index edbc1846b..315691f40 100644
--- a/crates/ide_ssr/Cargo.toml
+++ b/crates/ide_ssr/Cargo.toml
@@ -11,6 +11,7 @@ edition = "2018"
 doctest = false
 [dependencies]
+cov-mark = "1.1"
 rustc-hash = "1.1.0"
 itertools = "0.10.0"
diff --git a/crates/ide_ssr/src/matching.rs b/crates/ide_ssr/src/matching.rs
index df013bae9..e1adb381e 100644
--- a/crates/ide_ssr/src/matching.rs
+++ b/crates/ide_ssr/src/matching.rs
@@ -15,7 +15,6 @@ use syntax::{
    ast::{AstNode, AstToken},
    SmolStr,
 };
-use test_utils::mark;
 // Creates a match error. If we're currently attempting to match some code that we thought we were
 // going to match, as indicated by the --debug-snippet flag, then populate the reason field.
@@ -731,7 +730,7 @@ impl NodeKind {
    fn matches(&self, node: &SyntaxNode) -> Result<(), MatchFailed> {
        let ok = match self {
            Self::Literal => {
-                mark::hit!(literal_constraint);
+                cov_mark::hit!(literal_constraint);
                ast::Literal::can_cast(node.kind())
            }
        };
diff --git a/crates/ide_ssr/src/parsing.rs b/crates/ide_ssr/src/parsing.rs
index 3d5e4feb7..5ff25cb6d 100644
--- a/crates/ide_ssr/src/parsing.rs
+++ b/crates/ide_ssr/src/parsing.rs
@@ -10,7 +10,6 @@ use crate::{SsrError, SsrPattern, SsrRule};
 use rustc_hash::{FxHashMap, FxHashSet};
 use std::{fmt::Display, str::FromStr};
 use syntax::{ast, AstNode, SmolStr, SyntaxKind, SyntaxNode, T};
-use test_utils::mark;
 #[derive(Debug)]
 pub(crate) struct ParsedRule {
@@ -131,7 +130,7 @@ impl RuleBuilder {
            let old_len = self.rules.len();
            self.rules.retain(|rule| contains_path(&rule.pattern));
            if self.rules.len() < old_len {
-                mark::hit!(pattern_is_a_single_segment_path);
+                cov_mark::hit!(pattern_is_a_single_segment_path);
            }
        }
        Ok(self.rules)
diff --git a/crates/ide_ssr/src/replacing.rs b/crates/ide_ssr/src/replacing.rs
index 06a94a46c..c9ccc1961 100644
--- a/crates/ide_ssr/src/replacing.rs
+++ b/crates/ide_ssr/src/replacing.rs
@@ -5,7 +5,7 @@ use itertools::Itertools;
 use rustc_hash::{FxHashMap, FxHashSet};
 use syntax::ast::{self, AstNode, AstToken};
 use syntax::{SyntaxElement, SyntaxKind, SyntaxNode, SyntaxToken, TextRange, TextSize};
-use test_utils::mark;
 use text_edit::TextEdit;
 /// Returns a text edit that will replace each match in `matches` with its corresponding replacement
@@ -128,7 +128,7 @@ impl ReplacementRenderer<'_> {
                    && (placeholder_value.autoderef_count > 0
                        || placeholder_value.autoref_kind != ast::SelfParamKind::Owned)
                {
-                    mark::hit!(replace_autoref_autoderef_capture);
+                    cov_mark::hit!(replace_autoref_autoderef_capture);
                    let ref_kind = match placeholder_value.autoref_kind {
                        ast::SelfParamKind::Owned => "",
                        ast::SelfParamKind::Ref => "&",
diff --git a/crates/ide_ssr/src/resolving.rs b/crates/ide_ssr/src/resolving.rs
index 14e5a3b69..af94c7bb1 100644
--- a/crates/ide_ssr/src/resolving.rs
+++ b/crates/ide_ssr/src/resolving.rs
@@ -6,7 +6,6 @@ use ide_db::base_db::FilePosition;
 use parsing::Placeholder;
 use rustc_hash::FxHashMap;
 use syntax::{ast, SmolStr, SyntaxKind, SyntaxNode, SyntaxToken};
-use test_utils::mark;
 pub(crate) struct ResolutionScope<'db> {
    scope: hir::SemanticsScope<'db>,
@@ -170,13 +169,13 @@ impl Resolver<'_, '_> {
                    // calls. e.g. `Foo::bar($s)` should match `x.bar()`.
                    true
                } else {
-                    mark::hit!(replace_associated_trait_default_function_call);
+                    cov_mark::hit!(replace_associated_trait_default_function_call);
                    false
                }
            }
            hir::PathResolution::AssocItem(_) => {
                // Not a function. Could be a constant or an associated type.
-                mark::hit!(replace_associated_trait_constant);
+                cov_mark::hit!(replace_associated_trait_constant);
                false
            }
            _ => true,
@@ -267,7 +266,7 @@ fn pick_node_for_resolution(node: SyntaxNode) -> SyntaxNode {
    match node.kind() {
        SyntaxKind::EXPR_STMT => {
            if let Some(n) = node.first_child() {
-                mark::hit!(cursor_after_semicolon);
+                cov_mark::hit!(cursor_after_semicolon);
                return n;
            }
        }
@@ -291,7 +290,7 @@ fn path_contains_type_arguments(path: Option<ast::Path>) -> bool {
    if let Some(path) = path {
        if let Some(segment) = path.segment() {
            if segment.generic_arg_list().is_some() {
-                mark::hit!(type_arguments_within_path);
+                cov_mark::hit!(type_arguments_within_path);
                return true;
            }
        }
diff --git a/crates/ide_ssr/src/search.rs b/crates/ide_ssr/src/search.rs
index 836eb94b2..28cef742c 100644
--- a/crates/ide_ssr/src/search.rs
+++ b/crates/ide_ssr/src/search.rs
@@ -12,7 +12,6 @@ use ide_db::{
 };
 use rustc_hash::FxHashSet;
 use syntax::{ast, AstNode, SyntaxKind, SyntaxNode};
-use test_utils::mark;
 /// A cache for the results of find_usages. This is for when we have multiple patterns that have the
 /// same path. e.g. if the pattern was `foo::Bar` that can parse as a path, an expression, a type
@@ -61,7 +60,7 @@ impl<'db> MatchFinder<'db> {
            for file_range in self.find_usages(usage_cache, definition).file_ranges() {
                if let Some(node_to_match) = self.find_node_to_match(resolved_path, file_range) {
                    if !is_search_permitted_ancestors(&node_to_match) {
-                        mark::hit!(use_declaration_with_braces);
+                        cov_mark::hit!(use_declaration_with_braces);
                        continue;
                    }
                    self.try_add_match(rule, &node_to_match, &None, matches_out);
@@ -205,7 +204,7 @@ impl<'db> MatchFinder<'db> {
        matches_out: &mut Vec<Match>,
    ) {
        if !self.within_range_restrictions(code) {
-            mark::hit!(replace_nonpath_within_selection);
+            cov_mark::hit!(replace_nonpath_within_selection);
            return;
        }
        if let Ok(m) = matching::get_match(false, rule, code, restrict_range, &self.sema) {
diff --git a/crates/ide_ssr/src/tests.rs b/crates/ide_ssr/src/tests.rs
index a3ea44f23..1d8565dc0 100644
--- a/crates/ide_ssr/src/tests.rs
+++ b/crates/ide_ssr/src/tests.rs
@@ -3,7 +3,7 @@ use expect_test::{expect, Expect};
 use ide_db::base_db::{salsa::Durability, FileId, FilePosition, FileRange, SourceDatabaseExt};
 use rustc_hash::FxHashSet;
 use std::sync::Arc;
-use test_utils::{mark, RangeOrOffset};
+use test_utils::RangeOrOffset;
 fn parse_error_text(query: &str) -> String {
    format!("{}", query.parse::<SsrRule>().unwrap_err())
@@ -492,7 +492,7 @@ fn match_resolved_type_name() {
 #[test]
 fn type_arguments_within_path() {
-    mark::check!(type_arguments_within_path);
+    cov_mark::check!(type_arguments_within_path);
    let code = r#"
        mod foo {
            pub struct Bar<T> {t: T}
@@ -508,7 +508,7 @@ fn type_arguments_within_path() {
 #[test]
 fn literal_constraint() {
-    mark::check!(literal_constraint);
+    cov_mark::check!(literal_constraint);
    let code = r#"
        enum Option<T> { Some(T), None }
        use Option::Some;
@@ -641,7 +641,7 @@ fn replace_associated_function_call() {
 #[test]
 fn replace_associated_trait_default_function_call() {
-    mark::check!(replace_associated_trait_default_function_call);
+    cov_mark::check!(replace_associated_trait_default_function_call);
    assert_ssr_transform(
        "Bar2::foo() ==>> Bar2::foo2()",
        r#"
@@ -673,7 +673,7 @@ fn replace_associated_trait_default_function_call() {
 #[test]
 fn replace_associated_trait_constant() {
-    mark::check!(replace_associated_trait_constant);
+    cov_mark::check!(replace_associated_trait_constant);
    assert_ssr_transform(
        "Bar2::VALUE ==>> Bar2::VALUE_2222",
        r#"
@@ -998,7 +998,7 @@ fn use_declaration_with_braces() {
    // It would be OK for a path rule to match and alter a use declaration. We shouldn't mess it up
    // though. In particular, we must not change `use foo::{baz, bar}` to `use foo::{baz,
    // foo2::bar2}`.
-    mark::check!(use_declaration_with_braces);
+    cov_mark::check!(use_declaration_with_braces);
    assert_ssr_transform(
        "foo::bar ==>> foo2::bar2",
        r#"
@@ -1076,7 +1076,7 @@ fn ufcs_matches_method_call() {
 #[test]
 fn pattern_is_a_single_segment_path() {
-    mark::check!(pattern_is_a_single_segment_path);
+    cov_mark::check!(pattern_is_a_single_segment_path);
    // The first function should not be altered because the `foo` in scope at the cursor position is
    // a different `foo`. This case is special because "foo" can be parsed as a pattern (IDENT_PAT ->
    // NAME -> IDENT), which contains no path. If we're not careful we'll end up matching the `foo`
@@ -1118,7 +1118,7 @@ fn replace_local_variable_reference() {
    // The pattern references a local variable `foo` in the block containing the cursor. We should
    // only replace references to this variable `foo`, not other variables that just happen to have
    // the same name.
-    mark::check!(cursor_after_semicolon);
+    cov_mark::check!(cursor_after_semicolon);
    assert_ssr_transform(
        "foo + $a ==>> $a - foo",
        r#"
@@ -1179,7 +1179,7 @@ fn replace_path_within_selection() {
 #[test]
 fn replace_nonpath_within_selection() {
-    mark::check!(replace_nonpath_within_selection);
+    cov_mark::check!(replace_nonpath_within_selection);
    assert_ssr_transform(
        "$a + $b ==>> $b * $a",
        r#"
@@ -1269,7 +1269,7 @@ fn replace_autoref_autoderef_capture() {
    // second, we already have a reference, so it isn't. When $a is used in a context where autoref
    // doesn't apply, we need to prefix it with `&`. Finally, we have some cases where autoderef
    // needs to be applied.
-    mark::check!(replace_autoref_autoderef_capture);
+    cov_mark::check!(replace_autoref_autoderef_capture);
    let code = r#"
        struct Foo {}
        impl Foo {
diff --git a/crates/mbe/Cargo.toml b/crates/mbe/Cargo.toml
index bb2656a80..c7d5e39fa 100644
--- a/crates/mbe/Cargo.toml
+++ b/crates/mbe/Cargo.toml
@@ -10,6 +10,7 @@ edition = "2018"
 doctest = false
 [dependencies]
+cov-mark = "1.1"
 rustc-hash = "1.1.0"
 smallvec = "1.2.0"
 log = "0.4.8"
diff --git a/crates/mbe/src/lib.rs b/crates/mbe/src/lib.rs
index f3d2da55a..33b85e23d 100644
--- a/crates/mbe/src/lib.rs
+++ b/crates/mbe/src/lib.rs
@@ -17,7 +17,6 @@ mod benchmark;
 use std::fmt;
-use test_utils::mark;
 pub use tt::{Delimiter, DelimiterKind, Punct};
 use crate::{
@@ -217,7 +216,7 @@ impl MacroDef {
        let mut rules = Vec::new();
        if Some(tt::DelimiterKind::Brace) == tt.delimiter_kind() {
-            mark::hit!(parse_macro_def_rules);
+            cov_mark::hit!(parse_macro_def_rules);
            while src.len() > 0 {
                let rule = Rule::parse(&mut src, true)?;
                rules.push(rule);
@@ -229,7 +228,7 @@ impl MacroDef {
                }
            }
        } else {
-            mark::hit!(parse_macro_def_simple);
+            cov_mark::hit!(parse_macro_def_simple);
            let rule = Rule::parse(&mut src, false)?;
            if src.len() != 0 {
                return Err(ParseError::Expected("remain tokens in macro def".to_string()));
diff --git a/crates/mbe/src/tests.rs b/crates/mbe/src/tests.rs
index 08acd4ac2..3a168bb4b 100644
--- a/crates/mbe/src/tests.rs
+++ b/crates/mbe/src/tests.rs
@@ -6,7 +6,7 @@ use syntax::{
    SyntaxKind::{ERROR, IDENT},
    SyntaxNode, WalkEvent, T,
 };
-use test_utils::{assert_eq_text, mark};
+use test_utils::assert_eq_text;
 use super::*;
@@ -687,7 +687,7 @@ fn test_match_literal() {
 #[test]
 fn test_parse_macro_def_simple() {
-    mark::check!(parse_macro_def_simple);
+    cov_mark::check!(parse_macro_def_simple);
    parse_macro2(
        r#"
@@ -701,7 +701,7 @@ macro foo($id:ident) {
 #[test]
 fn test_parse_macro_def_rules() {
-    mark::check!(parse_macro_def_rules);
+    cov_mark::check!(parse_macro_def_rules);
    parse_macro2(
        r#"
diff --git a/crates/proc_macro_srv/src/proc_macro/bridge/mod.rs b/crates/proc_macro_srv/src/proc_macro/bridge/mod.rs
index e4006a5ab..e67902682 100644
--- a/crates/proc_macro_srv/src/proc_macro/bridge/mod.rs
+++ b/crates/proc_macro_srv/src/proc_macro/bridge/mod.rs
@@ -268,7 +268,7 @@ trait Mark {
    fn mark(unmarked: Self::Unmarked) -> Self;
 }
-/// Unwrap types wrapped by `Mark::mark` (see `Mark` for details).
+/// Unwrap types wrapped by `cov_mark::mark` (see `Mark` for details).
 trait Unmark {
    type Unmarked;
    fn unmark(self) -> Self::Unmarked;
diff --git a/crates/syntax/Cargo.toml b/crates/syntax/Cargo.toml
index 9ee3a8586..c39095def 100644
--- a/crates/syntax/Cargo.toml
+++ b/crates/syntax/Cargo.toml
@@ -11,6 +11,7 @@ edition = "2018"
 doctest = false
 [dependencies]
+cov-mark = "1.1"
 itertools = "0.10.0"
 rowan = "0.12.2"
 rustc_lexer = { version = "709.0.0", package = "rustc-ap-rustc_lexer" }
diff --git a/crates/syntax/src/algo.rs b/crates/syntax/src/algo.rs
index 2ff92f9f6..b13252eec 100644
--- a/crates/syntax/src/algo.rs
+++ b/crates/syntax/src/algo.rs
@@ -10,7 +10,6 @@ use std::{
 use indexmap::IndexMap;
 use itertools::Itertools;
 use rustc_hash::FxHashMap;
-use test_utils::mark;
 use text_edit::TextEditBuilder;
 use crate::{
@@ -184,7 +183,7 @@ pub fn diff(from: &SyntaxNode, to: &SyntaxNode) -> TreeDiff {
        let (lhs, rhs) = match lhs.as_node().zip(rhs.as_node()) {
            Some((lhs, rhs)) => (lhs, rhs),
            _ => {
-                mark::hit!(diff_node_token_replace);
+                cov_mark::hit!(diff_node_token_replace);
                diff.replacements.insert(lhs, rhs);
                return;
            }
@@ -202,19 +201,19 @@ pub fn diff(from: &SyntaxNode, to: &SyntaxNode) -> TreeDiff {
                (None, Some(element)) => {
                    let insert_pos = match last_lhs.clone() {
                        Some(prev) => {
-                            mark::hit!(diff_insert);
+                            cov_mark::hit!(diff_insert);
                            TreeDiffInsertPos::After(prev)
                        }
                        // first iteration, insert into out parent as the first child
                        None => {
-                            mark::hit!(diff_insert_as_first_child);
+                            cov_mark::hit!(diff_insert_as_first_child);
                            TreeDiffInsertPos::AsFirstChild(lhs.clone().into())
                        }
                    };
                    diff.insertions.entry(insert_pos).or_insert_with(Vec::new).push(element);
                }
                (Some(element), None) => {
-                    mark::hit!(diff_delete);
+                    cov_mark::hit!(diff_delete);
                    diff.deletions.push(element);
                }
                (Some(ref lhs_ele), Some(ref rhs_ele)) if syntax_element_eq(lhs_ele, rhs_ele) => {}
@@ -228,7 +227,7 @@ pub fn diff(from: &SyntaxNode, to: &SyntaxNode) -> TreeDiff {
                    let mut insert = false;
                    while let Some(rhs_child) = rhs_children_clone.next() {
                        if syntax_element_eq(&lhs_ele, &rhs_child) {
-                            mark::hit!(diff_insertions);
+                            cov_mark::hit!(diff_insertions);
                            insert = true;
                            break;
                        } else {
@@ -240,7 +239,7 @@ pub fn diff(from: &SyntaxNode, to: &SyntaxNode) -> TreeDiff {
                        let insert_pos = if let Some(prev) = last_lhs.clone().filter(|_| insert) {
                            TreeDiffInsertPos::After(prev)
                        } else {
-                            mark::hit!(insert_first_child);
+                            cov_mark::hit!(insert_first_child);
                            TreeDiffInsertPos::AsFirstChild(lhs.clone().into())
                        };
@@ -635,14 +634,13 @@ mod tests {
    use expect_test::{expect, Expect};
    use itertools::Itertools;
    use parser::SyntaxKind;
-    use test_utils::mark;
    use text_edit::TextEdit;
    use crate::{AstNode, SyntaxElement};
    #[test]
    fn replace_node_token() {
-        mark::check!(diff_node_token_replace);
+        cov_mark::check!(diff_node_token_replace);
        check_diff(
            r#"use node;"#,
            r#"ident"#,
@@ -666,7 +664,7 @@ mod tests {
    #[test]
    fn replace_parent() {
-        mark::check!(diff_insert_as_first_child);
+        cov_mark::check!(diff_insert_as_first_child);
        check_diff(
            r#""#,
            r#"use foo::bar;"#,
@@ -689,7 +687,7 @@ mod tests {
    #[test]
    fn insert_last() {
-        mark::check!(diff_insert);
+        cov_mark::check!(diff_insert);
        check_diff(
            r#"
 use foo;
@@ -774,7 +772,7 @@ use baz;"#,
    #[test]
    fn first_child_insertion() {
-        mark::check!(insert_first_child);
+        cov_mark::check!(insert_first_child);
        check_diff(
            r#"fn main() {
        stdi
@@ -804,7 +802,7 @@ use baz;"#,
    #[test]
    fn delete_last() {
-        mark::check!(diff_delete);
+        cov_mark::check!(diff_delete);
        check_diff(
            r#"use foo;
            use bar;"#,
@@ -828,7 +826,7 @@ use baz;"#,
    #[test]
    fn delete_middle() {
-        mark::check!(diff_insertions);
+        cov_mark::check!(diff_insertions);
        check_diff(
            r#"
 use expect_test::{expect, Expect};
diff --git a/crates/test_utils/src/lib.rs b/crates/test_utils/src/lib.rs
index 6041ab5e4..c5f859790 100644
--- a/crates/test_utils/src/lib.rs
+++ b/crates/test_utils/src/lib.rs
@@ -6,8 +6,6 @@
 //! * Extracting markup (mainly, `$0` markers) out of fixture strings.
 //! * marks (see the eponymous module).
-#[macro_use]
-pub mod mark;
 pub mod bench_fixture;
 mod fixture;
diff --git a/crates/test_utils/src/mark.rs b/crates/test_utils/src/mark.rs
deleted file mode 100644
index 97f5a93ad..000000000
--- a/crates/test_utils/src/mark.rs
+++ /dev/null
@@ -1,78 +0,0 @@
-//! This module implements manually tracked test coverage, which is useful for
-//! quickly finding a test responsible for testing a particular bit of code.
-//!
-//! See <https://matklad.github.io/2018/06/18/a-trick-for-test-maintenance.html>
-//! for details, but the TL;DR is that you write your test as
-//!
-//! ```
-//! #[test]
-//! fn test_foo() {
-//!     mark::check!(test_foo);
-//! }
-//! ```
-//!
-//! and in the code under test you write
-//!
-//! ```
-//! # use test_utils::mark;
-//! # fn some_condition() -> bool { true }
-//! fn foo() {
-//!     if some_condition() {
-//!         mark::hit!(test_foo);
-//!     }
-//! }
-//! ```
-//!
-//! This module then checks that executing the test indeed covers the specified
-//! function. This is useful if you come back to the `foo` function ten years
-//! later and wonder where the test are: now you can grep for `test_foo`.
-use std::sync::atomic::{AtomicUsize, Ordering};
-#[macro_export]
-macro_rules! _hit {
-    ($ident:ident) => {{
-        #[cfg(test)]
-        {
-            extern "C" {
-                #[no_mangle]
-                static $ident: std::sync::atomic::AtomicUsize;
-            }
-            unsafe {
-                $ident.fetch_add(1, std::sync::atomic::Ordering::SeqCst);
-            }
-        }
-    }};
-}
-pub use _hit as hit;
-#[macro_export]
-macro_rules! _check {
-    ($ident:ident) => {
-        #[no_mangle]
-        static $ident: std::sync::atomic::AtomicUsize = std::sync::atomic::AtomicUsize::new(0);
-        let _checker = $crate::mark::MarkChecker::new(&$ident);
-    };
-}
-pub use _check as check;
-pub struct MarkChecker {
-    mark: &'static AtomicUsize,
-    value_on_entry: usize,
-}
-impl MarkChecker {
-    pub fn new(mark: &'static AtomicUsize) -> MarkChecker {
-        let value_on_entry = mark.load(Ordering::Relaxed);
-        MarkChecker { mark, value_on_entry }
-    }
-}
-impl Drop for MarkChecker {
-    fn drop(&mut self) {
-        if std::thread::panicking() {
-            return;
-        }
-        let value_on_exit = self.mark.load(Ordering::Relaxed);
-        assert!(value_on_exit > self.value_on_entry, "mark was not hit")
-    }
-}
diff --git a/docs/dev/style.md b/docs/dev/style.md
index 93ad98f20..46bd8b9b2 100644
--- a/docs/dev/style.md
+++ b/docs/dev/style.md
@@ -145,7 +145,7 @@ Formatting ensures that you can use your editor's "number of selected characters
 ## Marked Tests
 Use
-[`mark::hit! / mark::check!`](https://github.com/rust-analyzer/rust-analyzer/blob/71fe719dd5247ed8615641d9303d7ca1aa201c2f/crates/test_utils/src/mark.rs)
+[`cov_mark::hit! / cov_mark::check!`](https://github.com/matklad/cov-mark)
 when testing specific conditions.
 Do not place several marks into a single test or condition.
 Do not reuse marks between several tests.