1 files changed, 53 insertions, 0 deletions
diff --git a/src/test/ui/lint/rfc-2383-lint-reason/expect_nested_lint_levels.rs b/src/test/ui/lint/rfc-2383-lint-reason/expect_nested_lint_levels.rs
new file mode 100644
index 000000000..8f94bd6ec
--- /dev/null
+++ b/src/test/ui/lint/rfc-2383-lint-reason/expect_nested_lint_levels.rs
@@ -0,0 +1,53 @@
+// ignore-tidy-linelength
+
+#![feature(lint_reasons)]
+#![warn(unused_mut)]
+
+#[expect(
+    unused_mut,
+    //~^ WARNING this lint expectation is unfulfilled [unfulfilled_lint_expectations]
+    //~| NOTE `#[warn(unfulfilled_lint_expectations)]` on by default
+    //~| NOTE this `expect` is overridden by a `allow` attribute before the `unused_mut` lint is triggered
+    reason = "this `expect` is overridden by a `allow` attribute before the `unused_mut` lint is triggered"
+)]
+mod foo {
+    fn bar() {
+        #[allow(
+            unused_mut,
+            reason = "this overrides the previous `expect` lint level and allows the `unused_mut` lint here"
+        )]
+        let mut v = 0;
+    }
+}
+
+#[expect(
+    unused_mut,
+    //~^ WARNING this lint expectation is unfulfilled [unfulfilled_lint_expectations]
+    //~| NOTE this `expect` is overridden by a `warn` attribute before the `unused_mut` lint is triggered
+    reason = "this `expect` is overridden by a `warn` attribute before the `unused_mut` lint is triggered"
+)]
+mod oof {
+    #[warn(
+        unused_mut,
+        //~^ NOTE the lint level is defined here
+        reason = "this overrides the previous `expect` lint level and warns about the `unused_mut` lint here"
+    )]
+    fn bar() {
+        let mut v = 0;
+        //~^ WARNING variable does not need to be mutable [unused_mut]
+        //~| NOTE this overrides the previous `expect` lint level and warns about the `unused_mut` lint here
+        //~| HELP remove this `mut`
+    }
+}
+
+#[expect(unused_variables)]
+//~^ WARNING this lint expectation is unfulfilled
+#[forbid(unused_variables)]
+//~^ NOTE the lint level is defined here
+fn check_expect_then_forbid() {
+    let this_is_my_function = 3;
+    //~^ ERROR unused variable: `this_is_my_function` [unused_variables]
+    //~| HELP if this is intentional, prefix it with an underscore
+}
+
+fn main() {}