1 files changed, 7 insertions, 0 deletions
diff --git a/tests/ui/pattern/issue-115599.rs b/tests/ui/pattern/issue-115599.rs
new file mode 100644
index 000000000..7a222b90a
--- /dev/null
+++ b/tests/ui/pattern/issue-115599.rs
@@ -0,0 +1,7 @@
+const CONST_STRING: String = String::new();
+
+fn main() {
+    let empty_str = String::from("");
+    if let CONST_STRING = empty_str {}
+    //~^ ERROR to use a constant of type `Vec<u8>` in a pattern, `Vec<u8>` must be annotated with `#[derive(PartialEq, Eq)]`
+}