1 files changed, 14 insertions, 0 deletions
diff --git a/tests/ui/feature-gates/trace_macros-gate.rs b/tests/ui/feature-gates/trace_macros-gate.rs
new file mode 100644
index 000000000..c9af04741
--- /dev/null
+++ b/tests/ui/feature-gates/trace_macros-gate.rs
@@ -0,0 +1,14 @@
+// Test that the trace_macros feature gate is on.
+
+fn main() {
+    trace_macros!(); //~ ERROR `trace_macros` is not stable
+                     //~| ERROR trace_macros! accepts only `true` or `false`
+    trace_macros!(true); //~ ERROR `trace_macros` is not stable
+    trace_macros!(false); //~ ERROR `trace_macros` is not stable
+
+    macro_rules! expando {
+        ($x: ident) => { trace_macros!($x) } //~ ERROR `trace_macros` is not stable
+    }
+
+    expando!(true);
+}