1 files changed, 15 insertions, 0 deletions
diff --git a/tests/ui/pattern/deref-patterns/needs-gate.rs b/tests/ui/pattern/deref-patterns/needs-gate.rs
new file mode 100644
index 00000000000..2d5ec45217f
--- /dev/null
+++ b/tests/ui/pattern/deref-patterns/needs-gate.rs
@@ -0,0 +1,15 @@
+// gate-test-deref_patterns
+
+fn main() {
+    match Box::new(0) {
+        deref!(0) => {}
+        //~^ ERROR: use of unstable library feature `deref_patterns`: placeholder syntax for deref patterns
+        _ => {}
+    }
+
+    match Box::new(0) {
+        0 => {}
+        //~^ ERROR: mismatched types
+        _ => {}
+    }
+}