1 files changed, 29 insertions, 0 deletions
diff --git a/js/src/jit-test/tests/debug/onEnterFrame-async-resumption-03.js b/js/src/jit-test/tests/debug/onEnterFrame-async-resumption-03.js
new file mode 100644
index 0000000000..6567a61d67
--- /dev/null
+++ b/js/src/jit-test/tests/debug/onEnterFrame-async-resumption-03.js
@@ -0,0 +1,29 @@
+// A Debugger can {return:} from onEnterFrame at any resume point in an async function.
+// The async function's promise is resolved with the returned value.
+
+let g = newGlobal({newCompartment: true});
+g.eval(`async function f(x) { await x; }`);
+
+let dbg = new Debugger(g);
+function test(when) {
+    let hits = 0;
+    dbg.onEnterFrame = frame => {
+        if (frame.type == "call" && frame.callee.name === "f") {
+            if (hits++ == when) {
+                return {return: "exit"};
+            }
+        }
+    };
+
+    let result = undefined;
+    let finished = false;
+    g.f("hello").then(value => { result = value; finished = true; });
+    drainJobQueue();
+    assertEq(finished, true);
+    assertEq(hits, when + 1);
+    assertEq(result, "exit");
+}
+
+// onEnterFrame with hits==0 is not a resume point; {return:} behaves differently there
+// (see onEnterFrame-async-resumption-02.js).
+test(1);  // force return from first resume point, immediately after the await instruction