1 files changed, 31 insertions, 0 deletions
diff --git a/js/src/jit-test/tests/collections/WeakSet-surface.js b/js/src/jit-test/tests/collections/WeakSet-surface.js
new file mode 100644
index 0000000000..b72a7d0306
--- /dev/null
+++ b/js/src/jit-test/tests/collections/WeakSet-surface.js
@@ -0,0 +1,31 @@
+// WeakSet surfaces
+
+var desc = Object.getOwnPropertyDescriptor(this, "WeakSet");
+assertEq(desc.enumerable, false);
+assertEq(desc.configurable, true);
+assertEq(desc.writable, true);
+
+assertEq(typeof WeakSet, 'function');
+assertEq(Object.keys(WeakSet).length, 0);
+assertEq(WeakSet.length, 0);
+assertEq(WeakSet.name, "WeakSet");
+
+assertEq(Object.getPrototypeOf(WeakSet.prototype), Object.prototype);
+assertEq(Object.prototype.toString.call(WeakSet.prototype), "[object WeakSet]");
+assertEq(Object.prototype.toString.call(new WeakSet), "[object WeakSet]");
+assertEq(Object.keys(WeakSet.prototype).length, 0);
+assertEq(WeakSet.prototype.constructor, WeakSet);
+
+function checkMethod(name, arity) {
+    var desc = Object.getOwnPropertyDescriptor(WeakSet.prototype, name);
+    assertEq(desc.enumerable, false);
+    assertEq(desc.configurable, true);
+    assertEq(desc.writable, true);
+    assertEq(typeof desc.value, 'function');
+    assertEq(desc.value.name, name);
+    assertEq(desc.value.length, arity);
+}
+
+checkMethod("has", 1);
+checkMethod("add", 1);
+checkMethod("delete", 1);