1 files changed, 22 insertions, 0 deletions
diff --git a/js/src/jit-test/tests/collections/WeakMap-constructor-generator-exception.js b/js/src/jit-test/tests/collections/WeakMap-constructor-generator-exception.js
new file mode 100644
index 000000000..eb8beaf9a
--- /dev/null
+++ b/js/src/jit-test/tests/collections/WeakMap-constructor-generator-exception.js
@@ -0,0 +1,22 @@
+// Iterating over the argument to WeakMap can throw. The exception is
+// propagated.
+
+load(libdir + "asserts.js");
+
+function data() {
+    yield [{}, "XR22/Z"];
+    yield [{}, "23D-BN"];
+    throw "oops";
+}
+
+var it = data();
+assertThrowsValue(() => new WeakMap(it), "oops");
+
+function* data2() {
+    yield [{}, "XR22/Z"];
+    yield [{}, "23D-BN"];
+    throw "oops";
+}
+
+var it2 = data2();
+assertThrowsValue(() => new WeakMap(it2), "oops");