1 files changed, 28 insertions, 0 deletions
diff --git a/js/src/jit-test/tests/debug/Frame-onStep-async-gc-01.js b/js/src/jit-test/tests/debug/Frame-onStep-async-gc-01.js
new file mode 100644
index 0000000000..6ff59d6ce8
--- /dev/null
+++ b/js/src/jit-test/tests/debug/Frame-onStep-async-gc-01.js
@@ -0,0 +1,28 @@
+// An onStep handler on a suspended async function frame keeps a Debugger alive.
+
+let g = newGlobal({newCompartment: true});
+g.eval(`
+  async function f() {
+    debugger;
+    await Promise.resolve(0);
+    return 'ok';
+  }
+`);
+
+let dbg = Debugger(g);
+let hit = false;
+dbg.onDebuggerStatement = frame => {
+    frame.onPop = completion => {
+        frame.onStep = () => { hit = true; };
+        frame.onPop = undefined;
+    };
+    dbg.onDebuggerStatement = undefined;
+    dbg = null;
+};
+
+g.f();
+assertEq(dbg, null);
+gc();
+assertEq(hit, false);
+drainJobQueue();
+assertEq(hit, true);