Add a test for coverage attr on trait function

1 files changed, 25 insertions, 0 deletions

diff --git a/tests/coverage/attr/trait-impl-inherit.rs b/tests/coverage/attr/trait-impl-inherit.rs
new file mode 100644
index 00000000000..951fecce90a
--- /dev/null
+++ b/tests/coverage/attr/trait-impl-inherit.rs
@@ -0,0 +1,25 @@
+#![feature(coverage_attribute)]
+// Checks that `#[coverage(..)]` in a trait method is not inherited in an
+// implementation.
+//@ edition: 2021
+//@ reference: attributes.coverage.trait-impl-inherit
+
+trait T {
+    #[coverage(off)]
+    fn f(&self) {
+        println!("default");
+    }
+}
+
+struct S;
+
+impl T for S {
+    fn f(&self) {
+        println!("impl S");
+    }
+}
+
+#[coverage(off)]
+fn main() {
+    S.f();
+}