use std::fmt; use assists::utils::test_related_attribute; use cfg::CfgExpr; use hir::{AsAssocItem, HasAttrs, HasSource, Semantics}; use ide_db::RootDatabase; use itertools::Itertools; use syntax::{ ast::{self, AstNode, AttrsOwner, ModuleItemOwner}, match_ast, SyntaxNode, }; use crate::{ display::{ToNav, TryToNav}, FileId, NavigationTarget, SymbolKind, }; #[derive(Debug, Clone)] pub struct Runnable { pub nav: NavigationTarget, pub kind: RunnableKind, pub cfg: Option, } #[derive(Debug, Clone)] pub enum TestId { Name(String), Path(String), } impl fmt::Display for TestId { fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result { match self { TestId::Name(name) => write!(f, "{}", name), TestId::Path(path) => write!(f, "{}", path), } } } #[derive(Debug, Clone)] pub enum RunnableKind { Test { test_id: TestId, attr: TestAttr }, TestMod { path: String }, Bench { test_id: TestId }, DocTest { test_id: TestId }, Bin, } #[derive(Debug, Eq, PartialEq)] pub struct RunnableAction { pub run_title: &'static str, pub debugee: bool, } const TEST: RunnableAction = RunnableAction { run_title: "▶\u{fe0e} Run Test", debugee: true }; const DOCTEST: RunnableAction = RunnableAction { run_title: "▶\u{fe0e} Run Doctest", debugee: false }; const BENCH: RunnableAction = RunnableAction { run_title: "▶\u{fe0e} Run Bench", debugee: true }; const BIN: RunnableAction = RunnableAction { run_title: "▶\u{fe0e} Run", debugee: true }; impl Runnable { // test package::module::testname pub fn label(&self, target: Option) -> String { match &self.kind { RunnableKind::Test { test_id, .. } => format!("test {}", test_id), RunnableKind::TestMod { path } => format!("test-mod {}", path), RunnableKind::Bench { test_id } => format!("bench {}", test_id), RunnableKind::DocTest { test_id, .. } => format!("doctest {}", test_id), RunnableKind::Bin => { target.map_or_else(|| "run binary".to_string(), |t| format!("run {}", t)) } } } pub fn action(&self) -> &'static RunnableAction { match &self.kind { RunnableKind::Test { .. } | RunnableKind::TestMod { .. } => &TEST, RunnableKind::DocTest { .. } => &DOCTEST, RunnableKind::Bench { .. } => &BENCH, RunnableKind::Bin => &BIN, } } } // Feature: Run // // Shows a popup suggesting to run a test/benchmark/binary **at the current cursor // location**. Super useful for repeatedly running just a single test. Do bind this // to a shortcut! // // |=== // | Editor | Action Name // // | VS Code | **Rust Analyzer: Run** // |=== pub(crate) fn runnables(db: &RootDatabase, file_id: FileId) -> Vec { let sema = Semantics::new(db); let source_file = sema.parse(file_id); source_file.syntax().descendants().filter_map(|i| runnable(&sema, i)).collect() } pub(crate) fn runnable(sema: &Semantics, item: SyntaxNode) -> Option { let runnable_item = match_ast! { match (item.clone()) { ast::Fn(func) => { let def = sema.to_def(&func)?; runnable_fn(sema, def) }, ast::Module(it) => runnable_mod(sema, it), _ => None, } }; runnable_item.or_else(|| runnable_doctest(sema, item)) } pub(crate) fn runnable_fn(sema: &Semantics, def: hir::Function) -> Option { let func = def.source(sema.db)?; let name_string = def.name(sema.db).to_string(); let kind = if name_string == "main" { RunnableKind::Bin } else { let canonical_path = { let def: hir::ModuleDef = def.into(); def.canonical_path(sema.db) }; let test_id = canonical_path.map(TestId::Path).unwrap_or(TestId::Name(name_string)); if test_related_attribute(&func.value).is_some() { let attr = TestAttr::from_fn(&func.value); RunnableKind::Test { test_id, attr } } else if func.value.has_atom_attr("bench") { RunnableKind::Bench { test_id } } else { return None; } }; let nav = NavigationTarget::from_named( sema.db, func.as_ref().map(|it| it as &dyn ast::NameOwner), SymbolKind::Function, ); let cfg = def.attrs(sema.db).cfg(); Some(Runnable { nav, kind, cfg }) } fn runnable_doctest(sema: &Semantics, item: SyntaxNode) -> Option { match_ast! { match item { ast::Fn(it) => module_def_doctest(sema, sema.to_def(&it)?.into()), ast::Struct(it) => module_def_doctest(sema, sema.to_def(&it)?.into()), ast::Enum(it) => module_def_doctest(sema, sema.to_def(&it)?.into()), ast::Union(it) => module_def_doctest(sema, sema.to_def(&it)?.into()), ast::Trait(it) => module_def_doctest(sema, sema.to_def(&it)?.into()), ast::Const(it) => module_def_doctest(sema, sema.to_def(&it)?.into()), ast::Static(it) => module_def_doctest(sema, sema.to_def(&it)?.into()), ast::TypeAlias(it) => module_def_doctest(sema, sema.to_def(&it)?.into()), _ => None, } } } fn module_def_doctest(sema: &Semantics, def: hir::ModuleDef) -> Option { let attrs = match def { hir::ModuleDef::Module(it) => it.attrs(sema.db), hir::ModuleDef::Function(it) => it.attrs(sema.db), hir::ModuleDef::Adt(it) => it.attrs(sema.db), hir::ModuleDef::Variant(it) => it.attrs(sema.db), hir::ModuleDef::Const(it) => it.attrs(sema.db), hir::ModuleDef::Static(it) => it.attrs(sema.db), hir::ModuleDef::Trait(it) => it.attrs(sema.db), hir::ModuleDef::TypeAlias(it) => it.attrs(sema.db), hir::ModuleDef::BuiltinType(_) => return None, }; if !has_runnable_doc_test(&attrs) { return None; } let def_name = def.name(sema.db).map(|it| it.to_string()); let test_id = def .canonical_path(sema.db) // This probably belongs to canonical path? .map(|path| { let assoc_def = match def { hir::ModuleDef::Function(it) => it.as_assoc_item(sema.db), hir::ModuleDef::Const(it) => it.as_assoc_item(sema.db), hir::ModuleDef::TypeAlias(it) => it.as_assoc_item(sema.db), _ => None, }; // FIXME: this also looks very wrong if let Some(assoc_def) = assoc_def { if let hir::AssocItemContainer::Impl(imp) = assoc_def.container(sema.db) { if let Some(adt) = imp.target_ty(sema.db).as_adt() { let name = adt.name(sema.db).to_string(); let idx = path.rfind(':').map_or(0, |idx| idx + 1); let (prefix, suffix) = path.split_at(idx); return format!("{}{}::{}", prefix, name, suffix); } } } path }) .map(TestId::Path) .or_else(|| def_name.clone().map(TestId::Name))?; let mut nav = def.try_to_nav(sema.db)?; nav.focus_range = None; nav.description = None; nav.docs = None; nav.kind = None; let res = Runnable { nav, kind: RunnableKind::DocTest { test_id }, cfg: attrs.cfg() }; Some(res) } #[derive(Debug, Copy, Clone)] pub struct TestAttr { pub ignore: bool, } impl TestAttr { fn from_fn(fn_def: &ast::Fn) -> TestAttr { let ignore = fn_def .attrs() .filter_map(|attr| attr.simple_name()) .any(|attribute_text| attribute_text == "ignore"); TestAttr { ignore } } } const RUSTDOC_FENCE: &str = "```"; const RUSTDOC_CODE_BLOCK_ATTRIBUTES_RUNNABLE: &[&str] = &["", "rust", "should_panic", "edition2015", "edition2018", "edition2021"]; fn has_runnable_doc_test(attrs: &hir::Attrs) -> bool { attrs.docs().map_or(false, |doc| { let mut in_code_block = false; for line in String::from(doc).lines() { if let Some(header) = line.strip_prefix(RUSTDOC_FENCE) { in_code_block = !in_code_block; if in_code_block && header .split(',') .all(|sub| RUSTDOC_CODE_BLOCK_ATTRIBUTES_RUNNABLE.contains(&sub.trim())) { return true; } } } false }) } fn runnable_mod(sema: &Semantics, module: ast::Module) -> Option { if !has_test_function_or_multiple_test_submodules(&module) { return None; } let module_def = sema.to_def(&module)?; let path = module_def .path_to_root(sema.db) .into_iter() .rev() .filter_map(|it| it.name(sema.db)) .join("::"); let def = sema.to_def(&module)?; let attrs = def.attrs(sema.db); let cfg = attrs.cfg(); let nav = module_def.to_nav(sema.db); Some(Runnable { nav, kind: RunnableKind::TestMod { path }, cfg }) } // We could create runnables for modules with number_of_test_submodules > 0, // but that bloats the runnables for no real benefit, since all tests can be run by the submodule already fn has_test_function_or_multiple_test_submodules(module: &ast::Module) -> bool { if let Some(item_list) = module.item_list() { let mut number_of_test_submodules = 0; for item in item_list.items() { match item { ast::Item::Fn(f) => { if test_related_attribute(&f).is_some() { return true; } } ast::Item::Module(submodule) => { if has_test_function_or_multiple_test_submodules(&submodule) { number_of_test_submodules += 1; } } _ => (), } } number_of_test_submodules > 1 } else { false } } #[cfg(test)] mod tests { use expect_test::{expect, Expect}; use crate::fixture; use super::*; fn check( ra_fixture: &str, // FIXME: fold this into `expect` as well actions: &[&RunnableAction], expect: Expect, ) { let (analysis, position) = fixture::position(ra_fixture); let runnables = analysis.runnables(position.file_id).unwrap(); expect.assert_debug_eq(&runnables); assert_eq!( actions, runnables.into_iter().map(|it| it.action()).collect::>().as_slice() ); } #[test] fn test_runnables() { check( r#" //- /lib.rs <|> fn main() {} #[test] fn test_foo() {} #[test] #[ignore] fn test_foo() {} #[bench] fn bench() {} "#, &[&BIN, &TEST, &TEST, &BENCH], expect![[r#" [ Runnable { nav: NavigationTarget { file_id: FileId( 0, ), full_range: 1..13, focus_range: 4..8, name: "main", kind: Function, }, kind: Bin, cfg: None, }, Runnable { nav: NavigationTarget { file_id: FileId( 0, ), full_range: 15..39, focus_range: 26..34, name: "test_foo", kind: Function, }, kind: Test { test_id: Path( "test_foo", ), attr: TestAttr { ignore: false, }, }, cfg: None, }, Runnable { nav: NavigationTarget { file_id: FileId( 0, ), full_range: 41..75, focus_range: 62..70, name: "test_foo", kind: Function, }, kind: Test { test_id: Path( "test_foo", ), attr: TestAttr { ignore: true, }, }, cfg: None, }, Runnable { nav: NavigationTarget { file_id: FileId( 0, ), full_range: 77..99, focus_range: 89..94, name: "bench", kind: Function, }, kind: Bench { test_id: Path( "bench", ), }, cfg: None, }, ] "#]], ); } #[test] fn test_runnables_doc_test() { check( r#" //- /lib.rs <|> fn main() {} /// ``` /// let x = 5; /// ``` fn should_have_runnable() {} /// ```edition2018 /// let x = 5; /// ``` fn should_have_runnable_1() {} /// ``` /// let z = 55; /// ``` /// /// ```ignore /// let z = 56; /// ``` fn should_have_runnable_2() {} /// ```no_run /// let z = 55; /// ``` fn should_have_no_runnable() {} /// ```ignore /// let z = 55; /// ``` fn should_have_no_runnable_2() {} /// ```compile_fail /// let z = 55; /// ``` fn should_have_no_runnable_3() {} /// ```text /// arbitrary plain text /// ``` fn should_have_no_runnable_4() {} /// ```text /// arbitrary plain text /// ``` /// /// ```sh /// $ shell code /// ``` fn should_have_no_runnable_5() {} /// ```rust,no_run /// let z = 55; /// ``` fn should_have_no_runnable_6() {} /// ``` /// let x = 5; /// ``` struct StructWithRunnable(String); "#, &[&BIN, &DOCTEST, &DOCTEST, &DOCTEST, &DOCTEST], expect![[r#" [ Runnable { nav: NavigationTarget { file_id: FileId( 0, ), full_range: 1..13, focus_range: 4..8, name: "main", kind: Function, }, kind: Bin, cfg: None, }, Runnable { nav: NavigationTarget { file_id: FileId( 0, ), full_range: 15..74, name: "should_have_runnable", }, kind: DocTest { test_id: Path( "should_have_runnable", ), }, cfg: None, }, Runnable { nav: NavigationTarget { file_id: FileId( 0, ), full_range: 76..148, name: "should_have_runnable_1", }, kind: DocTest { test_id: Path( "should_have_runnable_1", ), }, cfg: None, }, Runnable { nav: NavigationTarget { file_id: FileId( 0, ), full_range: 150..254, name: "should_have_runnable_2", }, kind: DocTest { test_id: Path( "should_have_runnable_2", ), }, cfg: None, }, Runnable { nav: NavigationTarget { file_id: FileId( 0, ), full_range: 756..821, name: "StructWithRunnable", }, kind: DocTest { test_id: Path( "StructWithRunnable", ), }, cfg: None, }, ] "#]], ); } #[test] fn test_runnables_doc_test_in_impl() { check( r#" //- /lib.rs <|> fn main() {} struct Data; impl Data { /// ``` /// let x = 5; /// ``` fn foo() {} } "#, &[&BIN, &DOCTEST], expect![[r#" [ Runnable { nav: NavigationTarget { file_id: FileId( 0, ), full_range: 1..13, focus_range: 4..8, name: "main", kind: Function, }, kind: Bin, cfg: None, }, Runnable { nav: NavigationTarget { file_id: FileId( 0, ), full_range: 44..98, name: "foo", }, kind: DocTest { test_id: Path( "Data::foo", ), }, cfg: None, }, ] "#]], ); } #[test] fn test_runnables_module() { check( r#" //- /lib.rs <|> mod test_mod { #[test] fn test_foo1() {} } "#, &[&TEST, &TEST], expect![[r#" [ Runnable { nav: NavigationTarget { file_id: FileId( 0, ), full_range: 1..51, focus_range: 5..13, name: "test_mod", kind: Module, }, kind: TestMod { path: "test_mod", }, cfg: None, }, Runnable { nav: NavigationTarget { file_id: FileId( 0, ), full_range: 20..49, focus_range: 35..44, name: "test_foo1", kind: Function, }, kind: Test { test_id: Path( "test_mod::test_foo1", ), attr: TestAttr { ignore: false, }, }, cfg: None, }, ] "#]], ); } #[test] fn only_modules_with_test_functions_or_more_than_one_test_submodule_have_runners() { check( r#" //- /lib.rs <|> mod root_tests { mod nested_tests_0 { mod nested_tests_1 { #[test] fn nested_test_11() {} #[test] fn nested_test_12() {} } mod nested_tests_2 { #[test] fn nested_test_2() {} } mod nested_tests_3 {} } mod nested_tests_4 {} } "#, &[&TEST, &TEST, &TEST, &TEST, &TEST, &TEST], expect![[r#" [ Runnable { nav: NavigationTarget { file_id: FileId( 0, ), full_range: 22..323, focus_range: 26..40, name: "nested_tests_0", kind: Module, }, kind: TestMod { path: "root_tests::nested_tests_0", }, cfg: None, }, Runnable { nav: NavigationTarget { file_id: FileId( 0, ), full_range: 51..192, focus_range: 55..69, name: "nested_tests_1", kind: Module, }, kind: TestMod { path: "root_tests::nested_tests_0::nested_tests_1", }, cfg: None, }, Runnable { nav: NavigationTarget { file_id: FileId( 0, ), full_range: 84..126, focus_range: 107..121, name: "nested_test_11", kind: Function, }, kind: Test { test_id: Path( "root_tests::nested_tests_0::nested_tests_1::nested_test_11", ), attr: TestAttr { ignore: false, }, }, cfg: None, }, Runnable { nav: NavigationTarget { file_id: FileId( 0, ), full_range: 140..182, focus_range: 163..177, name: "nested_test_12", kind: Function, }, kind: Test { test_id: Path( "root_tests::nested_tests_0::nested_tests_1::nested_test_12", ), attr: TestAttr { ignore: false, }, }, cfg: None, }, Runnable { nav: NavigationTarget { file_id: FileId( 0, ), full_range: 202..286, focus_range: 206..220, name: "nested_tests_2", kind: Module, }, kind: TestMod { path: "root_tests::nested_tests_0::nested_tests_2", }, cfg: None, }, Runnable { nav: NavigationTarget { file_id: FileId( 0, ), full_range: 235..276, focus_range: 258..271, name: "nested_test_2", kind: Function, }, kind: Test { test_id: Path( "root_tests::nested_tests_0::nested_tests_2::nested_test_2", ), attr: TestAttr { ignore: false, }, }, cfg: None, }, ] "#]], ); } #[test] fn test_runnables_with_feature() { check( r#" //- /lib.rs crate:foo cfg:feature=foo <|> #[test] #[cfg(feature = "foo")] fn test_foo1() {} "#, &[&TEST], expect![[r#" [ Runnable { nav: NavigationTarget { file_id: FileId( 0, ), full_range: 1..50, focus_range: 36..45, name: "test_foo1", kind: Function, }, kind: Test { test_id: Path( "test_foo1", ), attr: TestAttr { ignore: false, }, }, cfg: Some( Atom( KeyValue { key: "feature", value: "foo", }, ), ), }, ] "#]], ); } #[test] fn test_runnables_with_features() { check( r#" //- /lib.rs crate:foo cfg:feature=foo,feature=bar <|> #[test] #[cfg(all(feature = "foo", feature = "bar"))] fn test_foo1() {} "#, &[&TEST], expect![[r#" [ Runnable { nav: NavigationTarget { file_id: FileId( 0, ), full_range: 1..72, focus_range: 58..67, name: "test_foo1", kind: Function, }, kind: Test { test_id: Path( "test_foo1", ), attr: TestAttr { ignore: false, }, }, cfg: Some( All( [ Atom( KeyValue { key: "feature", value: "foo", }, ), Atom( KeyValue { key: "feature", value: "bar", }, ), ], ), ), }, ] "#]], ); } #[test] fn test_runnables_no_test_function_in_module() { check( r#" //- /lib.rs <|> mod test_mod { fn foo1() {} } "#, &[], expect![[r#" [] "#]], ); } #[test] fn test_doc_runnables_impl_mod() { check( r#" //- /lib.rs mod foo; //- /foo.rs struct Foo;<|> impl Foo { /// ``` /// let x = 5; /// ``` fn foo() {} } "#, &[&DOCTEST], expect![[r#" [ Runnable { nav: NavigationTarget { file_id: FileId( 1, ), full_range: 27..81, name: "foo", }, kind: DocTest { test_id: Path( "foo::Foo::foo", ), }, cfg: None, }, ] "#]], ); } }