1 files changed, 79 insertions, 0 deletions
diff --git a/js/src/jit-test/tests/modules/failure-on-resume.js b/js/src/jit-test/tests/modules/failure-on-resume.js
new file mode 100644
index 0000000000..d0e716b0bb
--- /dev/null
+++ b/js/src/jit-test/tests/modules/failure-on-resume.js
@@ -0,0 +1,79 @@
+const dbgGlobal = newGlobal({ newCompartment: true });
+dbgGlobal.parent = this;
+dbgGlobal.eval(`
+var entered = 0;
+var forceReturn = false;
+Debugger(parent).onEnterFrame = function () {
+  entered++;
+  if (forceReturn) {
+    return { return: "force return" };
+  }
+  return undefined;
+};
+`);
+
+{
+  function* f1() { yield 10; };
+
+  dbgGlobal.entered = 0;
+  let g = f1();
+  assertEq(dbgGlobal.entered, 1);
+  dbgGlobal.forceReturn = true;
+  let ret = g.next();
+  dbgGlobal.forceReturn = false;
+  assertEq(dbgGlobal.entered, 2);
+
+  assertEq(ret.value, "force return");
+}
+
+{
+  async function f2() { await {}; }
+
+  dbgGlobal.entered = 0;
+  let p = f2();
+  assertEq(dbgGlobal.entered, 1);
+  dbgGlobal.forceReturn = true;
+  drainJobQueue();
+  dbgGlobal.forceReturn = false;
+  assertEq(dbgGlobal.entered, 2);
+
+  let ret = null;
+  p.then(x => ret = x);
+  drainJobQueue();
+  assertEq(ret, "force return");
+}
+
+{
+  async function* f3() { await {}; }
+
+  dbgGlobal.entered = 0;
+  let g = f3();
+  assertEq(dbgGlobal.entered, 1);
+  dbgGlobal.forceReturn = true;
+  let p = g.next();
+  dbgGlobal.forceReturn = false;
+  assertEq(dbgGlobal.entered, 2);
+
+  let ret = null;
+  p.then(v => ret = v);
+  drainJobQueue();
+  assertEq(ret.value, "force return");
+}
+
+{
+  let m = registerModule("1", parseModule("await {};"));
+  moduleLink(m);
+
+  dbgGlobal.entered = 0;
+  let p = moduleEvaluate(m);
+  assertEq(dbgGlobal.entered, 1);
+  dbgGlobal.forceReturn = true;
+  drainJobQueue();
+  dbgGlobal.forceReturn = false;
+  assertEq(dbgGlobal.entered, 2);
+
+  let ret = null;
+  p.then(x => ret = x);
+  drainJobQueue();
+  assertEq(ret, undefined);
+}