1 files changed, 63 insertions, 0 deletions
diff --git a/js/src/jit-test/tests/generators/throw-closes.js b/js/src/jit-test/tests/generators/throw-closes.js
new file mode 100644
index 000000000..072e40e3d
--- /dev/null
+++ b/js/src/jit-test/tests/generators/throw-closes.js
@@ -0,0 +1,63 @@
+// When a generator function throws, the generator is closed.
+
+load(libdir + "asserts.js");
+load(libdir + "iteration.js");
+
+// Star generator, next() throws.
+function *g() {
+    yield 1;
+    yield 2;
+    throw 3;
+    yield 4;
+}
+var i = g();
+assertIteratorNext(i, 1);
+assertIteratorNext(i, 2);
+assertThrowsValue(() => i.next(), 3);
+assertIteratorDone(i);
+assertIteratorDone(i);
+
+// Star generator, throw() throws.
+function *h() {
+    yield 1;
+    yield 2;
+}
+var i = h();
+assertIteratorNext(i, 1);
+assertThrowsValue(() => i.throw(4), 4);
+assertIteratorDone(i);
+
+// Star generator, return() throws.
+function *h2() {
+    try {
+	yield 1;
+	yield 2;
+    } finally {
+	throw 6;
+    }
+}
+var i = h2();
+assertIteratorNext(i, 1);
+assertThrowsValue(() => i.return(4), 6);
+assertIteratorDone(i);
+
+// Legacy generator, throw() throws.
+function l1() {
+    yield 1;
+    yield 2;
+}
+var i = l1();
+assertEq(i.next(), 1);
+assertThrowsValue(() => i.throw(5), 5);
+assertThrowsInstanceOf(() => i.next(), StopIteration);
+
+// Legacy generator, next() throws.
+function l2() {
+    yield 1;
+    throw 6;
+    yield 2;
+}
+var i = l2();
+assertEq(i.next(), 1);
+assertThrowsValue(() => i.next(), 6);
+assertThrowsInstanceOf(() => i.next(), StopIteration);