coverage: Regression test for `assert!(!false)`

1 files changed, 11 insertions, 0 deletions

diff --git a/tests/coverage/assert_not.rs b/tests/coverage/assert_not.rs
new file mode 100644
index 00000000000..95204fcadd1
--- /dev/null
+++ b/tests/coverage/assert_not.rs
@@ -0,0 +1,11 @@
+// edition: 2021
+
+// Regression test for <https://github.com/rust-lang/rust/issues/118904>.
+// `assert!(true)` and `assert!(!false)` should have similar coverage spans.
+
+fn main() {
+    assert!(true);
+    assert!(!false);
+    assert!(!!true);
+    assert!(!!!false);
+}