139 lines
4.3 KiB
Rust
139 lines
4.3 KiB
Rust
//! Discovers tests
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use hir::{Crate, Module, ModuleDef, Semantics};
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use ide_db::{
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base_db::{CrateGraph, CrateId, FileId, SourceDatabase},
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RootDatabase,
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};
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use syntax::TextRange;
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use crate::{navigation_target::ToNav, runnables::runnable_fn, Runnable, TryToNav};
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#[derive(Debug)]
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pub enum TestItemKind {
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Crate(CrateId),
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Module,
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Function,
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}
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#[derive(Debug)]
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pub struct TestItem {
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pub id: String,
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pub kind: TestItemKind,
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pub label: String,
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pub parent: Option<String>,
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pub file: Option<FileId>,
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pub text_range: Option<TextRange>,
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pub runnable: Option<Runnable>,
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}
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pub(crate) fn discover_test_roots(db: &RootDatabase) -> Vec<TestItem> {
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let crate_graph = db.crate_graph();
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crate_graph
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.iter()
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.filter(|&id| crate_graph[id].origin.is_local())
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.filter_map(|id| {
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let test_id = crate_graph[id].display_name.as_ref()?.to_string();
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Some(TestItem {
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kind: TestItemKind::Crate(id),
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label: test_id.clone(),
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id: test_id,
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parent: None,
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file: None,
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text_range: None,
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runnable: None,
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})
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})
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.collect()
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}
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fn find_crate_by_id(crate_graph: &CrateGraph, crate_id: &str) -> Option<CrateId> {
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// here, we use display_name as the crate id. This is not super ideal, but it works since we
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// only show tests for the local crates.
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crate_graph.iter().find(|&id| {
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crate_graph[id].origin.is_local()
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&& crate_graph[id].display_name.as_ref().is_some_and(|x| x.to_string() == crate_id)
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})
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}
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fn discover_tests_in_module(db: &RootDatabase, module: Module, prefix_id: String) -> Vec<TestItem> {
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let sema = Semantics::new(db);
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let mut r = vec![];
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for c in module.children(db) {
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let module_name =
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c.name(db).as_ref().and_then(|n| n.as_str()).unwrap_or("[mod without name]").to_owned();
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let module_id = format!("{prefix_id}::{module_name}");
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let module_children = discover_tests_in_module(db, c, module_id.clone());
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if !module_children.is_empty() {
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let nav = c.to_nav(db).call_site;
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r.push(TestItem {
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id: module_id,
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kind: TestItemKind::Module,
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label: module_name,
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parent: Some(prefix_id.clone()),
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file: Some(nav.file_id),
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text_range: Some(nav.focus_or_full_range()),
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runnable: None,
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});
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r.extend(module_children);
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}
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}
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for def in module.declarations(db) {
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let ModuleDef::Function(f) = def else {
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continue;
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};
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if !f.is_test(db) {
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continue;
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}
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let nav = f.try_to_nav(db).map(|r| r.call_site);
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let fn_name = f.name(db).as_str().unwrap_or("[function without name]").to_owned();
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r.push(TestItem {
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id: format!("{prefix_id}::{fn_name}"),
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kind: TestItemKind::Function,
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label: fn_name,
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parent: Some(prefix_id.clone()),
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file: nav.as_ref().map(|n| n.file_id),
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text_range: nav.as_ref().map(|n| n.focus_or_full_range()),
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runnable: runnable_fn(&sema, f),
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});
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}
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r
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}
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pub(crate) fn discover_tests_in_crate_by_test_id(
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db: &RootDatabase,
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crate_test_id: &str,
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) -> Vec<TestItem> {
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let crate_graph = db.crate_graph();
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let Some(crate_id) = find_crate_by_id(&crate_graph, crate_test_id) else {
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return vec![];
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};
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discover_tests_in_crate(db, crate_id)
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}
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pub(crate) fn discover_tests_in_crate(db: &RootDatabase, crate_id: CrateId) -> Vec<TestItem> {
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let crate_graph = db.crate_graph();
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if !crate_graph[crate_id].origin.is_local() {
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return vec![];
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}
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let Some(crate_test_id) = &crate_graph[crate_id].display_name else {
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return vec![];
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};
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let kind = TestItemKind::Crate(crate_id);
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let crate_test_id = crate_test_id.to_string();
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let crate_id: Crate = crate_id.into();
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let module = crate_id.root_module();
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let mut r = vec![TestItem {
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id: crate_test_id.clone(),
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kind,
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label: crate_test_id.clone(),
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parent: None,
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file: None,
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text_range: None,
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runnable: None,
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}];
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r.extend(discover_tests_in_module(db, module, crate_test_id));
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r
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}
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