1 files changed, 37 insertions, 0 deletions
diff --git a/js/src/jit-test/tests/generators/wrappers.js b/js/src/jit-test/tests/generators/wrappers.js
new file mode 100644
index 000000000..5cada5201
--- /dev/null
+++ b/js/src/jit-test/tests/generators/wrappers.js
@@ -0,0 +1,37 @@
+// Generator methods work transparently on CrossCompartmentWrappers.
+
+load(libdir + "asserts.js");
+load(libdir + "iteration.js");
+
+function gen() { yield 1; yield 2; }
+var it = gen();
+
+var g = newGlobal();
+g.eval("function gen2() { yield 3; yield 4; }; var it2 = gen2();");
+
+// LegacyGenerator.next
+assertEq(it.next.call(g.it2), 3);
+
+// LegacyGenerator.throw
+assertThrowsValue(() => it.throw.call(g.it2, 7), 7);
+
+function *gen3() { yield 1; yield 2; }
+it = gen3();
+g.eval("function *gen4() { yield 5; yield 6; }; var it4 = gen4();");
+
+// StarGenerator.next
+assertIteratorResult(it.next.call(g.it4), 5, false)
+
+// StarGenerator.throw
+assertThrowsValue(() => it.throw.call(g.it4, 8), 8);
+
+// StarGenerator.return
+assertIteratorResult(it.return.call(g.it4, 8), 8, true);
+
+// Other objects should throw.
+try {
+    it.next.call([]);
+    assertEq(0, 1);
+} catch (e) {
+    assertEq(e.toString().includes("called on incompatible Array"), true);
+}