Rename Red Knot (#17820)

crates/ty_python_semantic/tests/mdtest.rs

@@ -0,0 +1,68 @@
+use camino::Utf8Path;
+use dir_test::{dir_test, Fixture};
+use ty_test::OutputFormat;
+
+/// See `crates/ty_test/README.md` for documentation on these tests.
+#[dir_test(
+    dir: "$CARGO_MANIFEST_DIR/resources/mdtest",
+    glob: "**/*.md"
+)]
+#[allow(clippy::needless_pass_by_value)]
+fn mdtest(fixture: Fixture<&str>) {
+    let absolute_fixture_path = Utf8Path::new(fixture.path());
+    let crate_dir = Utf8Path::new(env!("CARGO_MANIFEST_DIR"));
+    let snapshot_path = crate_dir.join("resources").join("mdtest").join("snapshots");
+    let workspace_root = crate_dir.ancestors().nth(2).unwrap();
+
+    let relative_fixture_path = absolute_fixture_path.strip_prefix(workspace_root).unwrap();
+    let short_title = absolute_fixture_path.file_name().unwrap();
+
+    let test_name = test_name("mdtest", absolute_fixture_path);
+
+    let output_format = if std::env::var("MDTEST_GITHUB_ANNOTATIONS_FORMAT").is_ok() {
+        OutputFormat::GitHub
+    } else {
+        OutputFormat::Cli
+    };
+
+    ty_test::run(
+        absolute_fixture_path,
+        relative_fixture_path,
+        &snapshot_path,
+        short_title,
+        &test_name,
+        output_format,
+    );
+}
+
+/// Constructs the test name used for individual markdown files
+///
+/// This code is copied from <https://github.com/fe-lang/dir-test/blob/1c0f41c480a3490bc2653a043ff6e3f8085a1f47/macros/src/lib.rs#L104-L138>
+/// and should be updated if they diverge
+fn test_name(test_func_name: &str, fixture_path: &Utf8Path) -> String {
+    assert!(fixture_path.is_file());
+
+    let dir_path = format!("{}/resources/mdtest", std::env!("CARGO_MANIFEST_DIR"));
+    let rel_path = fixture_path.strip_prefix(dir_path).unwrap();
+    assert!(rel_path.is_relative());
+
+    let mut test_name = test_func_name.to_owned();
+    test_name.push_str("__");
+
+    for component in rel_path.parent().unwrap().components() {
+        let component = component
+            .as_str()
+            .replace(|c: char| c.is_ascii_punctuation(), "_");
+        test_name.push_str(&component);
+        test_name.push('_');
+    }
+
+    test_name.push_str(
+        &rel_path
+            .file_stem()
+            .unwrap()
+            .replace(|c: char| c.is_ascii_punctuation(), "_"),
+    );
+
+    test_name
+}