1 files changed, 13 insertions, 0 deletions
diff --git a/js/src/jit-test/tests/collections/WeakMap-constructor-non-iterable.js b/js/src/jit-test/tests/collections/WeakMap-constructor-non-iterable.js
new file mode 100644
index 0000000000..427818d775
--- /dev/null
+++ b/js/src/jit-test/tests/collections/WeakMap-constructor-non-iterable.js
@@ -0,0 +1,13 @@
+// WeakMap should throw if argument is not iterable object.
+
+load(libdir + "asserts.js");
+load(libdir + "iteration.js");
+
+var non_iterable1 = {};
+non_iterable1[Symbol.iterator] = {};
+assertThrowsInstanceOf(() => new WeakMap(non_iterable1), TypeError);
+
+var non_iterable2 = {};
+non_iterable2[Symbol.iterator] = function() {
+};
+assertThrowsInstanceOf(() => new WeakMap(non_iterable2), TypeError);