mirror of
https://github.com/rust-lang/rust-analyzer
synced 2025-01-02 16:28:46 +00:00
993 lines
31 KiB
Rust
993 lines
31 KiB
Rust
use std::fmt;
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use cfg::CfgExpr;
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use hir::{AsAssocItem, Attrs, HirFileId, InFile, Semantics};
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use ide_db::RootDatabase;
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use itertools::Itertools;
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use syntax::{
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ast::{self, AstNode, AttrsOwner, DocCommentsOwner, ModuleItemOwner, NameOwner},
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match_ast, SyntaxNode,
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};
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use crate::{display::ToNav, FileId, NavigationTarget};
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#[derive(Debug, Clone)]
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pub struct Runnable {
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pub nav: NavigationTarget,
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pub kind: RunnableKind,
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pub cfg_exprs: Vec<CfgExpr>,
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}
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#[derive(Debug, Clone)]
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pub enum TestId {
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Name(String),
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Path(String),
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}
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impl fmt::Display for TestId {
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fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
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match self {
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TestId::Name(name) => write!(f, "{}", name),
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TestId::Path(path) => write!(f, "{}", path),
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}
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}
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}
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#[derive(Debug, Clone)]
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pub enum RunnableKind {
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Test { test_id: TestId, attr: TestAttr },
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TestMod { path: String },
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Bench { test_id: TestId },
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DocTest { test_id: TestId },
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Bin,
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}
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#[derive(Debug, Eq, PartialEq)]
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pub struct RunnableAction {
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pub run_title: &'static str,
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pub debugee: bool,
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}
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const TEST: RunnableAction = RunnableAction { run_title: "▶\u{fe0e} Run Test", debugee: true };
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const DOCTEST: RunnableAction =
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RunnableAction { run_title: "▶\u{fe0e} Run Doctest", debugee: false };
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const BENCH: RunnableAction = RunnableAction { run_title: "▶\u{fe0e} Run Bench", debugee: true };
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const BIN: RunnableAction = RunnableAction { run_title: "▶\u{fe0e} Run", debugee: true };
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impl Runnable {
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// test package::module::testname
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pub fn label(&self, target: Option<String>) -> String {
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match &self.kind {
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RunnableKind::Test { test_id, .. } => format!("test {}", test_id),
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RunnableKind::TestMod { path } => format!("test-mod {}", path),
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RunnableKind::Bench { test_id } => format!("bench {}", test_id),
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RunnableKind::DocTest { test_id, .. } => format!("doctest {}", test_id),
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RunnableKind::Bin => {
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target.map_or_else(|| "run binary".to_string(), |t| format!("run {}", t))
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}
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}
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}
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pub fn action(&self) -> &'static RunnableAction {
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match &self.kind {
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RunnableKind::Test { .. } | RunnableKind::TestMod { .. } => &TEST,
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RunnableKind::DocTest { .. } => &DOCTEST,
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RunnableKind::Bench { .. } => &BENCH,
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RunnableKind::Bin => &BIN,
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}
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}
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}
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// Feature: Run
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//
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// Shows a popup suggesting to run a test/benchmark/binary **at the current cursor
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// location**. Super useful for repeatedly running just a single test. Do bind this
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// to a shortcut!
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//
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// |===
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// | Editor | Action Name
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//
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// | VS Code | **Rust Analyzer: Run**
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// |===
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pub(crate) fn runnables(db: &RootDatabase, file_id: FileId) -> Vec<Runnable> {
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let sema = Semantics::new(db);
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let source_file = sema.parse(file_id);
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source_file.syntax().descendants().filter_map(|i| runnable(&sema, i, file_id)).collect()
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}
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pub(crate) fn runnable(
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sema: &Semantics<RootDatabase>,
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item: SyntaxNode,
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file_id: FileId,
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) -> Option<Runnable> {
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match_ast! {
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match item {
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ast::Fn(it) => runnable_fn(sema, it, file_id),
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ast::Module(it) => runnable_mod(sema, it, file_id),
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_ => None,
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}
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}
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}
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fn runnable_fn(
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sema: &Semantics<RootDatabase>,
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fn_def: ast::Fn,
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file_id: FileId,
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) -> Option<Runnable> {
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let name_string = fn_def.name()?.text().to_string();
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let kind = if name_string == "main" {
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RunnableKind::Bin
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} else {
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let test_id = match sema.to_def(&fn_def).map(|def| def.module(sema.db)) {
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Some(module) => {
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let def = sema.to_def(&fn_def)?;
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let impl_trait_name = def.as_assoc_item(sema.db).and_then(|assoc_item| {
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match assoc_item.container(sema.db) {
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hir::AssocItemContainer::Trait(trait_item) => {
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Some(trait_item.name(sema.db).to_string())
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}
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hir::AssocItemContainer::ImplDef(impl_def) => impl_def
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.target_ty(sema.db)
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.as_adt()
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.map(|adt| adt.name(sema.db).to_string()),
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}
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});
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let path_iter = module
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.path_to_root(sema.db)
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.into_iter()
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.rev()
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.filter_map(|it| it.name(sema.db))
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.map(|name| name.to_string());
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let path = if let Some(impl_trait_name) = impl_trait_name {
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path_iter
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.chain(std::iter::once(impl_trait_name))
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.chain(std::iter::once(name_string))
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.join("::")
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} else {
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path_iter.chain(std::iter::once(name_string)).join("::")
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};
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TestId::Path(path)
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}
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None => TestId::Name(name_string),
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};
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if has_test_related_attribute(&fn_def) {
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let attr = TestAttr::from_fn(&fn_def);
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RunnableKind::Test { test_id, attr }
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} else if fn_def.has_atom_attr("bench") {
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RunnableKind::Bench { test_id }
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} else if has_runnable_doc_test(&fn_def) {
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RunnableKind::DocTest { test_id }
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} else {
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return None;
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}
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};
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let attrs = Attrs::from_attrs_owner(sema.db, InFile::new(HirFileId::from(file_id), &fn_def));
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let cfg_exprs = attrs.cfg().collect();
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let nav = if let RunnableKind::DocTest { .. } = kind {
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NavigationTarget::from_doc_commented(
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sema.db,
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InFile::new(file_id.into(), &fn_def),
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InFile::new(file_id.into(), &fn_def),
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)
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} else {
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NavigationTarget::from_named(sema.db, InFile::new(file_id.into(), &fn_def))
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};
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Some(Runnable { nav, kind, cfg_exprs })
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}
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#[derive(Debug, Copy, Clone)]
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pub struct TestAttr {
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pub ignore: bool,
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}
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impl TestAttr {
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fn from_fn(fn_def: &ast::Fn) -> TestAttr {
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let ignore = fn_def
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.attrs()
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.filter_map(|attr| attr.simple_name())
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.any(|attribute_text| attribute_text == "ignore");
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TestAttr { ignore }
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}
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}
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/// This is a method with a heuristics to support test methods annotated with custom test annotations, such as
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/// `#[test_case(...)]`, `#[tokio::test]` and similar.
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/// Also a regular `#[test]` annotation is supported.
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///
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/// It may produce false positives, for example, `#[wasm_bindgen_test]` requires a different command to run the test,
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/// but it's better than not to have the runnables for the tests at all.
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pub(crate) fn has_test_related_attribute(fn_def: &ast::Fn) -> bool {
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fn_def
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.attrs()
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.filter_map(|attr| attr.path())
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.map(|path| path.syntax().to_string().to_lowercase())
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.any(|attribute_text| attribute_text.contains("test"))
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}
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const RUSTDOC_FENCE: &str = "```";
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const RUSTDOC_CODE_BLOCK_ATTRIBUTES_RUNNABLE: &[&str] =
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&["", "rust", "should_panic", "edition2015", "edition2018"];
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fn has_runnable_doc_test(fn_def: &ast::Fn) -> bool {
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fn_def.doc_comment_text().map_or(false, |comments_text| {
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let mut in_code_block = false;
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for line in comments_text.lines() {
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if let Some(header) = line.strip_prefix(RUSTDOC_FENCE) {
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in_code_block = !in_code_block;
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if in_code_block
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&& header
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.split(',')
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.all(|sub| RUSTDOC_CODE_BLOCK_ATTRIBUTES_RUNNABLE.contains(&sub.trim()))
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{
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return true;
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}
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}
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}
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false
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})
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}
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fn runnable_mod(
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sema: &Semantics<RootDatabase>,
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module: ast::Module,
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file_id: FileId,
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) -> Option<Runnable> {
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if !has_test_function_or_multiple_test_submodules(&module) {
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return None;
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}
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let module_def = sema.to_def(&module)?;
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let path = module_def
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.path_to_root(sema.db)
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.into_iter()
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.rev()
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.filter_map(|it| it.name(sema.db))
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.join("::");
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let attrs = Attrs::from_attrs_owner(sema.db, InFile::new(HirFileId::from(file_id), &module));
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let cfg_exprs = attrs.cfg().collect();
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let nav = module_def.to_nav(sema.db);
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Some(Runnable { nav, kind: RunnableKind::TestMod { path }, cfg_exprs })
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}
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// We could create runnables for modules with number_of_test_submodules > 0,
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// but that bloats the runnables for no real benefit, since all tests can be run by the submodule already
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fn has_test_function_or_multiple_test_submodules(module: &ast::Module) -> bool {
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if let Some(item_list) = module.item_list() {
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let mut number_of_test_submodules = 0;
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for item in item_list.items() {
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match item {
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ast::Item::Fn(f) => {
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if has_test_related_attribute(&f) {
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return true;
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}
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}
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ast::Item::Module(submodule) => {
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if has_test_function_or_multiple_test_submodules(&submodule) {
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number_of_test_submodules += 1;
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}
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}
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_ => (),
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}
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}
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number_of_test_submodules > 1
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} else {
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false
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}
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}
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#[cfg(test)]
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mod tests {
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use expect_test::{expect, Expect};
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use crate::fixture;
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use super::{RunnableAction, BENCH, BIN, DOCTEST, TEST};
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fn check(
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ra_fixture: &str,
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// FIXME: fold this into `expect` as well
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actions: &[&RunnableAction],
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expect: Expect,
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) {
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let (analysis, position) = fixture::position(ra_fixture);
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let runnables = analysis.runnables(position.file_id).unwrap();
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expect.assert_debug_eq(&runnables);
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assert_eq!(
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actions,
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runnables.into_iter().map(|it| it.action()).collect::<Vec<_>>().as_slice()
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);
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}
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#[test]
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fn test_runnables() {
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check(
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r#"
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//- /lib.rs
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<|>
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fn main() {}
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#[test]
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fn test_foo() {}
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#[test]
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#[ignore]
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fn test_foo() {}
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#[bench]
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fn bench() {}
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"#,
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&[&BIN, &TEST, &TEST, &BENCH],
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expect![[r#"
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[
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Runnable {
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nav: NavigationTarget {
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file_id: FileId(
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0,
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),
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full_range: 1..13,
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focus_range: Some(
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4..8,
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),
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name: "main",
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kind: FN,
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container_name: None,
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description: None,
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docs: None,
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},
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kind: Bin,
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cfg_exprs: [],
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},
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Runnable {
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nav: NavigationTarget {
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file_id: FileId(
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0,
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),
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full_range: 15..39,
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focus_range: Some(
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26..34,
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),
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name: "test_foo",
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kind: FN,
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container_name: None,
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description: None,
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docs: None,
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},
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kind: Test {
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test_id: Path(
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"test_foo",
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),
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attr: TestAttr {
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ignore: false,
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},
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},
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cfg_exprs: [],
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},
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Runnable {
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nav: NavigationTarget {
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file_id: FileId(
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0,
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),
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full_range: 41..75,
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focus_range: Some(
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62..70,
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),
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name: "test_foo",
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kind: FN,
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container_name: None,
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description: None,
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docs: None,
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},
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kind: Test {
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test_id: Path(
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"test_foo",
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),
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attr: TestAttr {
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ignore: true,
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},
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},
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cfg_exprs: [],
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},
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Runnable {
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nav: NavigationTarget {
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file_id: FileId(
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0,
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),
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full_range: 77..99,
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focus_range: Some(
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89..94,
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),
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name: "bench",
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kind: FN,
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container_name: None,
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description: None,
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docs: None,
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},
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kind: Bench {
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test_id: Path(
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"bench",
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),
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},
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cfg_exprs: [],
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},
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]
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"#]],
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);
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}
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#[test]
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fn test_runnables_doc_test() {
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check(
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r#"
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//- /lib.rs
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<|>
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fn main() {}
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/// ```
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/// let x = 5;
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/// ```
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fn should_have_runnable() {}
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|
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/// ```edition2018
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/// let x = 5;
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/// ```
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fn should_have_runnable_1() {}
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|
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/// ```
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/// let z = 55;
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/// ```
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///
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/// ```ignore
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/// let z = 56;
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/// ```
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fn should_have_runnable_2() {}
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/// ```no_run
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/// let z = 55;
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/// ```
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fn should_have_no_runnable() {}
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|
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/// ```ignore
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/// let z = 55;
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/// ```
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fn should_have_no_runnable_2() {}
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|
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/// ```compile_fail
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/// let z = 55;
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/// ```
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fn should_have_no_runnable_3() {}
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|
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/// ```text
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/// arbitrary plain text
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/// ```
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fn should_have_no_runnable_4() {}
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|
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/// ```text
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/// arbitrary plain text
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/// ```
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///
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/// ```sh
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/// $ shell code
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/// ```
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fn should_have_no_runnable_5() {}
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|
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/// ```rust,no_run
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/// let z = 55;
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/// ```
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fn should_have_no_runnable_6() {}
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"#,
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&[&BIN, &DOCTEST, &DOCTEST, &DOCTEST],
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expect![[r#"
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[
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Runnable {
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nav: NavigationTarget {
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file_id: FileId(
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0,
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),
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full_range: 1..13,
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focus_range: Some(
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4..8,
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),
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name: "main",
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kind: FN,
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container_name: None,
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description: None,
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docs: None,
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},
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kind: Bin,
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cfg_exprs: [],
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},
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Runnable {
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nav: NavigationTarget {
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file_id: FileId(
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0,
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),
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full_range: 15..74,
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focus_range: None,
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name: "should_have_runnable",
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kind: FN,
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container_name: None,
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description: None,
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docs: None,
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},
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kind: DocTest {
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test_id: Path(
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"should_have_runnable",
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),
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},
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cfg_exprs: [],
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},
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Runnable {
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nav: NavigationTarget {
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file_id: FileId(
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0,
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),
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full_range: 76..148,
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focus_range: None,
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name: "should_have_runnable_1",
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kind: FN,
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container_name: None,
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description: None,
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docs: None,
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},
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kind: DocTest {
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test_id: Path(
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"should_have_runnable_1",
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),
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},
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cfg_exprs: [],
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},
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Runnable {
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nav: NavigationTarget {
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file_id: FileId(
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0,
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),
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full_range: 150..254,
|
|
focus_range: None,
|
|
name: "should_have_runnable_2",
|
|
kind: FN,
|
|
container_name: None,
|
|
description: None,
|
|
docs: None,
|
|
},
|
|
kind: DocTest {
|
|
test_id: Path(
|
|
"should_have_runnable_2",
|
|
),
|
|
},
|
|
cfg_exprs: [],
|
|
},
|
|
]
|
|
"#]],
|
|
);
|
|
}
|
|
|
|
#[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: Some(
|
|
4..8,
|
|
),
|
|
name: "main",
|
|
kind: FN,
|
|
container_name: None,
|
|
description: None,
|
|
docs: None,
|
|
},
|
|
kind: Bin,
|
|
cfg_exprs: [],
|
|
},
|
|
Runnable {
|
|
nav: NavigationTarget {
|
|
file_id: FileId(
|
|
0,
|
|
),
|
|
full_range: 44..98,
|
|
focus_range: None,
|
|
name: "foo",
|
|
kind: FN,
|
|
container_name: None,
|
|
description: None,
|
|
docs: None,
|
|
},
|
|
kind: DocTest {
|
|
test_id: Path(
|
|
"Data::foo",
|
|
),
|
|
},
|
|
cfg_exprs: [],
|
|
},
|
|
]
|
|
"#]],
|
|
);
|
|
}
|
|
|
|
#[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: Some(
|
|
5..13,
|
|
),
|
|
name: "test_mod",
|
|
kind: MODULE,
|
|
container_name: None,
|
|
description: None,
|
|
docs: None,
|
|
},
|
|
kind: TestMod {
|
|
path: "test_mod",
|
|
},
|
|
cfg_exprs: [],
|
|
},
|
|
Runnable {
|
|
nav: NavigationTarget {
|
|
file_id: FileId(
|
|
0,
|
|
),
|
|
full_range: 20..49,
|
|
focus_range: Some(
|
|
35..44,
|
|
),
|
|
name: "test_foo1",
|
|
kind: FN,
|
|
container_name: None,
|
|
description: None,
|
|
docs: None,
|
|
},
|
|
kind: Test {
|
|
test_id: Path(
|
|
"test_mod::test_foo1",
|
|
),
|
|
attr: TestAttr {
|
|
ignore: false,
|
|
},
|
|
},
|
|
cfg_exprs: [],
|
|
},
|
|
]
|
|
"#]],
|
|
);
|
|
}
|
|
|
|
#[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: Some(
|
|
26..40,
|
|
),
|
|
name: "nested_tests_0",
|
|
kind: MODULE,
|
|
container_name: None,
|
|
description: None,
|
|
docs: None,
|
|
},
|
|
kind: TestMod {
|
|
path: "root_tests::nested_tests_0",
|
|
},
|
|
cfg_exprs: [],
|
|
},
|
|
Runnable {
|
|
nav: NavigationTarget {
|
|
file_id: FileId(
|
|
0,
|
|
),
|
|
full_range: 51..192,
|
|
focus_range: Some(
|
|
55..69,
|
|
),
|
|
name: "nested_tests_1",
|
|
kind: MODULE,
|
|
container_name: None,
|
|
description: None,
|
|
docs: None,
|
|
},
|
|
kind: TestMod {
|
|
path: "root_tests::nested_tests_0::nested_tests_1",
|
|
},
|
|
cfg_exprs: [],
|
|
},
|
|
Runnable {
|
|
nav: NavigationTarget {
|
|
file_id: FileId(
|
|
0,
|
|
),
|
|
full_range: 84..126,
|
|
focus_range: Some(
|
|
107..121,
|
|
),
|
|
name: "nested_test_11",
|
|
kind: FN,
|
|
container_name: None,
|
|
description: None,
|
|
docs: None,
|
|
},
|
|
kind: Test {
|
|
test_id: Path(
|
|
"root_tests::nested_tests_0::nested_tests_1::nested_test_11",
|
|
),
|
|
attr: TestAttr {
|
|
ignore: false,
|
|
},
|
|
},
|
|
cfg_exprs: [],
|
|
},
|
|
Runnable {
|
|
nav: NavigationTarget {
|
|
file_id: FileId(
|
|
0,
|
|
),
|
|
full_range: 140..182,
|
|
focus_range: Some(
|
|
163..177,
|
|
),
|
|
name: "nested_test_12",
|
|
kind: FN,
|
|
container_name: None,
|
|
description: None,
|
|
docs: None,
|
|
},
|
|
kind: Test {
|
|
test_id: Path(
|
|
"root_tests::nested_tests_0::nested_tests_1::nested_test_12",
|
|
),
|
|
attr: TestAttr {
|
|
ignore: false,
|
|
},
|
|
},
|
|
cfg_exprs: [],
|
|
},
|
|
Runnable {
|
|
nav: NavigationTarget {
|
|
file_id: FileId(
|
|
0,
|
|
),
|
|
full_range: 202..286,
|
|
focus_range: Some(
|
|
206..220,
|
|
),
|
|
name: "nested_tests_2",
|
|
kind: MODULE,
|
|
container_name: None,
|
|
description: None,
|
|
docs: None,
|
|
},
|
|
kind: TestMod {
|
|
path: "root_tests::nested_tests_0::nested_tests_2",
|
|
},
|
|
cfg_exprs: [],
|
|
},
|
|
Runnable {
|
|
nav: NavigationTarget {
|
|
file_id: FileId(
|
|
0,
|
|
),
|
|
full_range: 235..276,
|
|
focus_range: Some(
|
|
258..271,
|
|
),
|
|
name: "nested_test_2",
|
|
kind: FN,
|
|
container_name: None,
|
|
description: None,
|
|
docs: None,
|
|
},
|
|
kind: Test {
|
|
test_id: Path(
|
|
"root_tests::nested_tests_0::nested_tests_2::nested_test_2",
|
|
),
|
|
attr: TestAttr {
|
|
ignore: false,
|
|
},
|
|
},
|
|
cfg_exprs: [],
|
|
},
|
|
]
|
|
"#]],
|
|
);
|
|
}
|
|
|
|
#[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: Some(
|
|
36..45,
|
|
),
|
|
name: "test_foo1",
|
|
kind: FN,
|
|
container_name: None,
|
|
description: None,
|
|
docs: None,
|
|
},
|
|
kind: Test {
|
|
test_id: Path(
|
|
"test_foo1",
|
|
),
|
|
attr: TestAttr {
|
|
ignore: false,
|
|
},
|
|
},
|
|
cfg_exprs: [
|
|
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: Some(
|
|
58..67,
|
|
),
|
|
name: "test_foo1",
|
|
kind: FN,
|
|
container_name: None,
|
|
description: None,
|
|
docs: None,
|
|
},
|
|
kind: Test {
|
|
test_id: Path(
|
|
"test_foo1",
|
|
),
|
|
attr: TestAttr {
|
|
ignore: false,
|
|
},
|
|
},
|
|
cfg_exprs: [
|
|
All(
|
|
[
|
|
KeyValue {
|
|
key: "feature",
|
|
value: "foo",
|
|
},
|
|
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#"
|
|
[]
|
|
"#]],
|
|
);
|
|
}
|
|
}
|