1 files changed, 1 insertions, 638 deletions

diff --git a/crates/ide_db/src/helpers/insert_use.rs b/crates/ide_db/src/helpers/insert_use.rs
index 08d246c16..040843990 100644
--- a/crates/ide_db/src/helpers/insert_use.rs
+++ b/crates/ide_db/src/helpers/insert_use.rs
@@ -573,641 +573,4 @@ fn find_insert_position(
 }
 
 #[cfg(test)]
-mod tests {
-    use super::*;
-
-    use test_utils::assert_eq_text;
-
-    #[test]
-    fn insert_existing() {
-        check_full("std::fs", "use std::fs;", "use std::fs;")
-    }
-
-    #[test]
-    fn insert_start() {
-        check_none(
-            "std::bar::AA",
-            r"
-use std::bar::B;
-use std::bar::D;
-use std::bar::F;
-use std::bar::G;",
-            r"
-use std::bar::AA;
-use std::bar::B;
-use std::bar::D;
-use std::bar::F;
-use std::bar::G;",
-        )
-    }
-
-    #[test]
-    fn insert_start_indent() {
-        mark::check!(insert_use_indent_after);
-        check_none(
-            "std::bar::AA",
-            r"
-    use std::bar::B;
-    use std::bar::D;",
-            r"
-    use std::bar::AA;
-    use std::bar::B;
-    use std::bar::D;",
-        )
-    }
-
-    #[test]
-    fn insert_middle() {
-        check_none(
-            "std::bar::EE",
-            r"
-use std::bar::A;
-use std::bar::D;
-use std::bar::F;
-use std::bar::G;",
-            r"
-use std::bar::A;
-use std::bar::D;
-use std::bar::EE;
-use std::bar::F;
-use std::bar::G;",
-        )
-    }
-
-    #[test]
-    fn insert_middle_indent() {
-        check_none(
-            "std::bar::EE",
-            r"
-    use std::bar::A;
-    use std::bar::D;
-    use std::bar::F;
-    use std::bar::G;",
-            r"
-    use std::bar::A;
-    use std::bar::D;
-    use std::bar::EE;
-    use std::bar::F;
-    use std::bar::G;",
-        )
-    }
-
-    #[test]
-    fn insert_end() {
-        check_none(
-            "std::bar::ZZ",
-            r"
-use std::bar::A;
-use std::bar::D;
-use std::bar::F;
-use std::bar::G;",
-            r"
-use std::bar::A;
-use std::bar::D;
-use std::bar::F;
-use std::bar::G;
-use std::bar::ZZ;",
-        )
-    }
-
-    #[test]
-    fn insert_end_indent() {
-        mark::check!(insert_use_indent_before);
-        check_none(
-            "std::bar::ZZ",
-            r"
-    use std::bar::A;
-    use std::bar::D;
-    use std::bar::F;
-    use std::bar::G;",
-            r"
-    use std::bar::A;
-    use std::bar::D;
-    use std::bar::F;
-    use std::bar::G;
-    use std::bar::ZZ;",
-        )
-    }
-
-    #[test]
-    fn insert_middle_nested() {
-        check_none(
-            "std::bar::EE",
-            r"
-use std::bar::A;
-use std::bar::{D, Z}; // example of weird imports due to user
-use std::bar::F;
-use std::bar::G;",
-            r"
-use std::bar::A;
-use std::bar::EE;
-use std::bar::{D, Z}; // example of weird imports due to user
-use std::bar::F;
-use std::bar::G;",
-        )
-    }
-
-    #[test]
-    fn insert_middle_groups() {
-        check_none(
-            "foo::bar::GG",
-            r"
-    use std::bar::A;
-    use std::bar::D;
-
-    use foo::bar::F;
-    use foo::bar::H;",
-            r"
-    use std::bar::A;
-    use std::bar::D;
-
-    use foo::bar::F;
-    use foo::bar::GG;
-    use foo::bar::H;",
-        )
-    }
-
-    #[test]
-    fn insert_first_matching_group() {
-        check_none(
-            "foo::bar::GG",
-            r"
-    use foo::bar::A;
-    use foo::bar::D;
-
-    use std;
-
-    use foo::bar::F;
-    use foo::bar::H;",
-            r"
-    use foo::bar::A;
-    use foo::bar::D;
-    use foo::bar::GG;
-
-    use std;
-
-    use foo::bar::F;
-    use foo::bar::H;",
-        )
-    }
-
-    #[test]
-    fn insert_missing_group_std() {
-        check_none(
-            "std::fmt",
-            r"
-    use foo::bar::A;
-    use foo::bar::D;",
-            r"
-    use std::fmt;
-
-    use foo::bar::A;
-    use foo::bar::D;",
-        )
-    }
-
-    #[test]
-    fn insert_missing_group_self() {
-        check_none(
-            "self::fmt",
-            r"
-use foo::bar::A;
-use foo::bar::D;",
-            r"
-use foo::bar::A;
-use foo::bar::D;
-
-use self::fmt;",
-        )
-    }
-
-    #[test]
-    fn insert_no_imports() {
-        check_full(
-            "foo::bar",
-            "fn main() {}",
-            r"use foo::bar;
-
-fn main() {}",
-        )
-    }
-
-    #[test]
-    fn insert_empty_file() {
-        // empty files will get two trailing newlines
-        // this is due to the test case insert_no_imports above
-        check_full(
-            "foo::bar",
-            "",
-            r"use foo::bar;
-
-",
-        )
-    }
-
-    #[test]
-    fn insert_empty_module() {
-        mark::check!(insert_use_no_indent_after);
-        check(
-            "foo::bar",
-            "mod x {}",
-            r"{
-    use foo::bar;
-}",
-            None,
-            true,
-        )
-    }
-
-    #[test]
-    fn insert_after_inner_attr() {
-        check_full(
-            "foo::bar",
-            r"#![allow(unused_imports)]",
-            r"#![allow(unused_imports)]
-
-use foo::bar;",
-        )
-    }
-
-    #[test]
-    fn insert_after_inner_attr2() {
-        check_full(
-            "foo::bar",
-            r"#![allow(unused_imports)]
-
-#![no_std]
-fn main() {}",
-            r"#![allow(unused_imports)]
-
-#![no_std]
-
-use foo::bar;
-fn main() {}",
-        );
-    }
-
-    #[test]
-    fn inserts_after_single_line_inner_comments() {
-        check_none(
-            "foo::bar::Baz",
-            "//! Single line inner comments do not allow any code before them.",
-            r#"//! Single line inner comments do not allow any code before them.
-
-use foo::bar::Baz;"#,
-        );
-    }
-
-    #[test]
-    fn inserts_after_multiline_inner_comments() {
-        check_none(
-            "foo::bar::Baz",
-            r#"/*! Multiline inner comments do not allow any code before them. */
-
-/*! Still an inner comment, cannot place any code before. */
-fn main() {}"#,
-            r#"/*! Multiline inner comments do not allow any code before them. */
-
-/*! Still an inner comment, cannot place any code before. */
-
-use foo::bar::Baz;
-fn main() {}"#,
-        )
-    }
-
-    #[test]
-    fn inserts_after_all_inner_items() {
-        check_none(
-            "foo::bar::Baz",
-            r#"#![allow(unused_imports)]
-/*! Multiline line comment 2 */
-
-
-//! Single line comment 1
-#![no_std]
-//! Single line comment 2
-fn main() {}"#,
-            r#"#![allow(unused_imports)]
-/*! Multiline line comment 2 */
-
-
-//! Single line comment 1
-#![no_std]
-//! Single line comment 2
-
-use foo::bar::Baz;
-fn main() {}"#,
-        )
-    }
-
-    #[test]
-    fn merge_groups() {
-        check_last("std::io", r"use std::fmt;", r"use std::{fmt, io};")
-    }
-
-    #[test]
-    fn merge_groups_last() {
-        check_last(
-            "std::io",
-            r"use std::fmt::{Result, Display};",
-            r"use std::fmt::{Result, Display};
-use std::io;",
-        )
-    }
-
-    #[test]
-    fn merge_last_into_self() {
-        check_last("foo::bar::baz", r"use foo::bar;", r"use foo::bar::{self, baz};");
-    }
-
-    #[test]
-    fn merge_groups_full() {
-        check_full(
-            "std::io",
-            r"use std::fmt::{Result, Display};",
-            r"use std::{fmt::{Result, Display}, io};",
-        )
-    }
-
-    #[test]
-    fn merge_groups_long_full() {
-        check_full(
-            "std::foo::bar::Baz",
-            r"use std::foo::bar::Qux;",
-            r"use std::foo::bar::{Baz, Qux};",
-        )
-    }
-
-    #[test]
-    fn merge_groups_long_last() {
-        check_last(
-            "std::foo::bar::Baz",
-            r"use std::foo::bar::Qux;",
-            r"use std::foo::bar::{Baz, Qux};",
-        )
-    }
-
-    #[test]
-    fn merge_groups_long_full_list() {
-        check_full(
-            "std::foo::bar::Baz",
-            r"use std::foo::bar::{Qux, Quux};",
-            r"use std::foo::bar::{Baz, Quux, Qux};",
-        )
-    }
-
-    #[test]
-    fn merge_groups_long_last_list() {
-        check_last(
-            "std::foo::bar::Baz",
-            r"use std::foo::bar::{Qux, Quux};",
-            r"use std::foo::bar::{Baz, Quux, Qux};",
-        )
-    }
-
-    #[test]
-    fn merge_groups_long_full_nested() {
-        check_full(
-            "std::foo::bar::Baz",
-            r"use std::foo::bar::{Qux, quux::{Fez, Fizz}};",
-            r"use std::foo::bar::{Baz, Qux, quux::{Fez, Fizz}};",
-        )
-    }
-
-    #[test]
-    fn merge_groups_long_last_nested() {
-        check_last(
-            "std::foo::bar::Baz",
-            r"use std::foo::bar::{Qux, quux::{Fez, Fizz}};",
-            r"use std::foo::bar::Baz;
-use std::foo::bar::{Qux, quux::{Fez, Fizz}};",
-        )
-    }
-
-    #[test]
-    fn merge_groups_full_nested_deep() {
-        check_full(
-            "std::foo::bar::quux::Baz",
-            r"use std::foo::bar::{Qux, quux::{Fez, Fizz}};",
-            r"use std::foo::bar::{Qux, quux::{Baz, Fez, Fizz}};",
-        )
-    }
-
-    #[test]
-    fn merge_groups_full_nested_long() {
-        check_full(
-            "std::foo::bar::Baz",
-            r"use std::{foo::bar::Qux};",
-            r"use std::{foo::bar::{Baz, Qux}};",
-        );
-    }
-
-    #[test]
-    fn merge_groups_last_nested_long() {
-        check_full(
-            "std::foo::bar::Baz",
-            r"use std::{foo::bar::Qux};",
-            r"use std::{foo::bar::{Baz, Qux}};",
-        );
-    }
-
-    #[test]
-    fn merge_groups_skip_pub() {
-        check_full(
-            "std::io",
-            r"pub use std::fmt::{Result, Display};",
-            r"pub use std::fmt::{Result, Display};
-use std::io;",
-        )
-    }
-
-    #[test]
-    fn merge_groups_skip_pub_crate() {
-        check_full(
-            "std::io",
-            r"pub(crate) use std::fmt::{Result, Display};",
-            r"pub(crate) use std::fmt::{Result, Display};
-use std::io;",
-        )
-    }
-
-    #[test]
-    #[ignore] // FIXME: Support this
-    fn split_out_merge() {
-        check_last(
-            "std::fmt::Result",
-            r"use std::{fmt, io};",
-            r"use std::fmt::{self, Result};
-use std::io;",
-        )
-    }
-
-    #[test]
-    fn merge_into_module_import() {
-        check_full(
-            "std::fmt::Result",
-            r"use std::{fmt, io};",
-            r"use std::{fmt::{self, Result}, io};",
-        )
-    }
-
-    #[test]
-    fn merge_groups_self() {
-        check_full("std::fmt::Debug", r"use std::fmt;", r"use std::fmt::{self, Debug};")
-    }
-
-    #[test]
-    fn merge_mod_into_glob() {
-        check_full(
-            "token::TokenKind",
-            r"use token::TokenKind::*;",
-            r"use token::TokenKind::{*, self};",
-        )
-        // FIXME: have it emit `use token::TokenKind::{self, *}`?
-    }
-
-    #[test]
-    fn merge_self_glob() {
-        check_full("self", r"use self::*;", r"use self::{*, self};")
-        // FIXME: have it emit `use {self, *}`?
-    }
-
-    #[test]
-    fn merge_glob_nested() {
-        check_full(
-            "foo::bar::quux::Fez",
-            r"use foo::bar::{Baz, quux::*};",
-            r"use foo::bar::{Baz, quux::{self::*, Fez}};",
-        )
-    }
-
-    #[test]
-    fn merge_nested_considers_first_segments() {
-        check_full(
-            "hir_ty::display::write_bounds_like_dyn_trait",
-            r"use hir_ty::{autoderef, display::{HirDisplayError, HirFormatter}, method_resolution};",
-            r"use hir_ty::{autoderef, display::{HirDisplayError, HirFormatter, write_bounds_like_dyn_trait}, method_resolution};",
-        );
-    }
-
-    #[test]
-    fn skip_merge_last_too_long() {
-        check_last(
-            "foo::bar",
-            r"use foo::bar::baz::Qux;",
-            r"use foo::bar;
-use foo::bar::baz::Qux;",
-        );
-    }
-
-    #[test]
-    fn skip_merge_last_too_long2() {
-        check_last(
-            "foo::bar::baz::Qux",
-            r"use foo::bar;",
-            r"use foo::bar;
-use foo::bar::baz::Qux;",
-        );
-    }
-
-    #[test]
-    fn insert_short_before_long() {
-        check_none(
-            "foo::bar",
-            r"use foo::bar::baz::Qux;",
-            r"use foo::bar;
-use foo::bar::baz::Qux;",
-        );
-    }
-
-    #[test]
-    fn merge_last_fail() {
-        check_merge_only_fail(
-            r"use foo::bar::{baz::{Qux, Fez}};",
-            r"use foo::bar::{baaz::{Quux, Feez}};",
-            MergeBehaviour::Last,
-        );
-    }
-
-    #[test]
-    fn merge_last_fail1() {
-        check_merge_only_fail(
-            r"use foo::bar::{baz::{Qux, Fez}};",
-            r"use foo::bar::baaz::{Quux, Feez};",
-            MergeBehaviour::Last,
-        );
-    }
-
-    #[test]
-    fn merge_last_fail2() {
-        check_merge_only_fail(
-            r"use foo::bar::baz::{Qux, Fez};",
-            r"use foo::bar::{baaz::{Quux, Feez}};",
-            MergeBehaviour::Last,
-        );
-    }
-
-    #[test]
-    fn merge_last_fail3() {
-        check_merge_only_fail(
-            r"use foo::bar::baz::{Qux, Fez};",
-            r"use foo::bar::baaz::{Quux, Feez};",
-            MergeBehaviour::Last,
-        );
-    }
-
-    fn check(
-        path: &str,
-        ra_fixture_before: &str,
-        ra_fixture_after: &str,
-        mb: Option<MergeBehaviour>,
-        module: bool,
-    ) {
-        let mut syntax = ast::SourceFile::parse(ra_fixture_before).tree().syntax().clone();
-        if module {
-            syntax = syntax.descendants().find_map(ast::Module::cast).unwrap().syntax().clone();
-        }
-        let file = super::ImportScope::from(syntax).unwrap();
-        let path = ast::SourceFile::parse(&format!("use {};", path))
-            .tree()
-            .syntax()
-            .descendants()
-            .find_map(ast::Path::cast)
-            .unwrap();
-
-        let rewriter = insert_use(&file, path, mb);
-        let result = rewriter.rewrite(file.as_syntax_node()).to_string();
-        assert_eq_text!(&result, ra_fixture_after);
-    }
-
-    fn check_full(path: &str, ra_fixture_before: &str, ra_fixture_after: &str) {
-        check(path, ra_fixture_before, ra_fixture_after, Some(MergeBehaviour::Full), false)
-    }
-
-    fn check_last(path: &str, ra_fixture_before: &str, ra_fixture_after: &str) {
-        check(path, ra_fixture_before, ra_fixture_after, Some(MergeBehaviour::Last), false)
-    }
-
-    fn check_none(path: &str, ra_fixture_before: &str, ra_fixture_after: &str) {
-        check(path, ra_fixture_before, ra_fixture_after, None, false)
-    }
-
-    fn check_merge_only_fail(ra_fixture0: &str, ra_fixture1: &str, mb: MergeBehaviour) {
-        let use0 = ast::SourceFile::parse(ra_fixture0)
-            .tree()
-            .syntax()
-            .descendants()
-            .find_map(ast::Use::cast)
-            .unwrap();
-
-        let use1 = ast::SourceFile::parse(ra_fixture1)
-            .tree()
-            .syntax()
-            .descendants()
-            .find_map(ast::Use::cast)
-            .unwrap();
-
-        let result = try_merge_imports(&use0, &use1, mb);
-        assert_eq!(result.map(|u| u.to_string()), None);
-    }
-}
+mod tests;