JavaScriptCore-7601.1.46.3.tar.gz

[apple/javascriptcore.git] / tests / stress / weak-set-constructor-adder.js

diff --git a/tests/stress/weak-set-constructor-adder.js b/tests/stress/weak-set-constructor-adder.js
new file mode 100644 (file)
index 0000000..3c600c1
--- /dev/null
+++ b/tests/stress/weak-set-constructor-adder.js
@@ -0,0 +1,51 @@
+// WeakSet constructor with adder change.
+
+var originalAdder = WeakSet.prototype.add;
+var counter = 0;
+
+WeakSet.prototype.add = function (key) {
+    counter++;
+    return originalAdder.call(this, key);
+};
+
+var obj0 = {};
+var obj1 = {};
+var obj2 = [];
+var obj3 = new Date();
+var obj4 = new Error();
+var obj5 = JSON;
+
+var values = [
+    obj0,
+    obj1,
+    obj2,
+    obj3,
+    obj4,
+    obj5,
+    obj4,
+    obj3,
+    obj2,
+    obj1,
+    obj0,
+];
+var set = new WeakSet(values);
+if (counter !== values.length)
+    throw new Error("bad counter " + counter);
+
+WeakSet.prototype.add = function () {
+    throw new Error("adder called");
+};
+
+var set = new WeakSet();
+var set = new WeakSet([]);
+var error = null;
+try {
+    var set = new WeakSet([ 0 ]);
+} catch (e) {
+    error = e;
+}
+if (!error)
+    throw new Error("error not thrown");
+if (String(error) !== "Error: adder called")
+    throw new Error("bad error " + String(error));
+