1 files changed, 35 insertions, 0 deletions
diff --git a/js/src/jit-test/tests/debug/onEnterFrame-async-resumption-02.js b/js/src/jit-test/tests/debug/onEnterFrame-async-resumption-02.js
new file mode 100644
index 0000000000..15986741be
--- /dev/null
+++ b/js/src/jit-test/tests/debug/onEnterFrame-async-resumption-02.js
@@ -0,0 +1,35 @@
+// A Debugger can {throw:} from onEnterFrame in an async function.
+// The resulting promise (if any) is rejected with the thrown error value.
+
+load(libdir + "asserts.js");
+
+let g = newGlobal({newCompartment: true});
+g.eval(`
+    async function f() { await 1; }
+    var err = new TypeError("object too hairy");
+`);
+
+let dbg = new Debugger;
+let gw = dbg.addDebuggee(g);
+let errw = gw.makeDebuggeeValue(g.err);
+
+// Repeat the test for each onEnterFrame event.
+// It fires up to two times:
+// - when the async function g.f is called;
+// - when we resume after the await to run to the end.
+for (let when = 0; when < 2; when++) {
+    let hits = 0;
+    dbg.onEnterFrame = frame => {
+        return hits++ < when ? undefined : {throw: errw};
+    };
+
+    let result = undefined;
+    g.f()
+        .then(value => { result = {returned: value}; })
+        .catch(err => { result = {threw: err}; });
+
+    drainJobQueue();
+
+    assertEq(hits, when + 1);
+    assertDeepEq(result, {threw: g.err});
+}