1 files changed, 49 insertions, 0 deletions
diff --git a/js/src/jit-test/tests/debug/Debugger-getNewestFrame-generators-01.js b/js/src/jit-test/tests/debug/Debugger-getNewestFrame-generators-01.js
new file mode 100644
index 0000000000..908bd4f2f3
--- /dev/null
+++ b/js/src/jit-test/tests/debug/Debugger-getNewestFrame-generators-01.js
@@ -0,0 +1,49 @@
+// Generator/async frames can be created and revived by calling Debugger.getNewestFrame().
+//
+// Modified copy of Frame-older-generators-01.js.
+
+let g = newGlobal({newCompartment: true});
+g.eval(`
+    function* gen() {
+        f();
+        yield 1;
+        f();
+    }
+    function* genDefaults(x=f()) {
+        f();
+    }
+    async function af() {
+        f();
+        await 1;
+        f();
+    }
+    async function afDefaults(x=f()) {
+        await 1;
+        f();
+    }
+`);
+
+function test(expected, code) {
+    let dbg = Debugger(g);
+    let hits = 0;
+    let genFrame = null;
+    g.f = () => {
+        hits++;
+        let frame = dbg.getNewestFrame();
+        if (genFrame === null) {
+            genFrame = frame;
+        } else {
+            assertEq(frame, genFrame);
+        }
+        assertEq(genFrame.callee.name, expected);
+    }
+
+    g.eval(code);
+    assertEq(hits, 2);
+    dbg.removeDebuggee(g);
+}
+
+test("gen", "for (var x of gen()) {}");
+test("genDefaults", "for (var x of genDefaults()) {}");
+test("af", "af(); drainJobQueue();");
+test("afDefaults", "afDefaults(); drainJobQueue();")