dom/tests/mochitest/whatwg/postMessage_structured_clone_helper.html@a63d609f5ebe
dom/tests/mochitest/whatwg/postMessage_structured_clone_helper.html
Thu, 15 Jan 2015 15:55:04 +0100
- author
- Michael Schloh von Bennewitz <michael@schloh.com>
- date
- Thu, 15 Jan 2015 15:55:04 +0100
- branch
- TOR_BUG_9701
- changeset 9
- a63d609f5ebe
- permissions
- -rw-r--r--
Back out 97036ab72558 which inappropriately compared turds to third parties.
1 <!DOCTYPE html>
2 <html>
3 <head>
4 <title>postMessage structured clone page</title>
5 <script type="application/javascript;version=1.7"
6 src="postMessage_structured_clone_helper.js"></script>
7 <script type="application/javascript;version=1.7">
8 var generator = new getTestContent()
10 function isClone(a, b) {
11 window.dump("Object a: " + a + "\n");
12 window.dump("Object b: " + b + "\n");
13 var stack = [[a, b]];
14 var memory = new WeakMap();
15 var rmemory = new WeakMap();
17 while (stack.length > 0) {
18 var pair = stack.pop();
19 var x = pair[0], y = pair[1];
20 if (typeof x !== "object" || x === null) {
21 // x is primitive.
22 if (x !== y) {
23 window.dump("Primitives not equal!\n");
24 return false;
25 }
26 } else if (x instanceof Date) {
27 if (x.getTime() == y.getTime())
28 return true;
29 window.dump("Dates not equal!\n");
30 return false;
31 } else if (memory.has(x)) {
32 // x is an object we have seen before in a.
33 if (y !== memory.get(x)) {
34 window.dump("Already seen!?\n");
35 return false;
36 }
37 if (!(rmemory.get(y) == x)) {
38 window.dump("Not equal??\n");
39 return false;
40 }
41 } else {
42 // x is an object we have not seen before.
43 // Check that we have not seen y before either.
44 if (rmemory.has(y)) {
45 // If we have seen y before, the only possible outcome
46 // is that x and y are literally the same object.
47 if (y == x)
48 continue;
49 window.dump("Already seen y!?\n");
50 window.dump(y.toString() + "\n");
51 return false;
52 }
54 // x and y must be of the same [[Class]].
55 var xcls = Object.prototype.toString.call(x);
56 var ycls = Object.prototype.toString.call(y);
57 if (xcls !== ycls) {
58 window.dump("Failing on proto\n");
59 return false;
60 }
62 // This function is only designed to check Objects and Arrays.
63 if (!(xcls === "[object Object]" || xcls === "[object Array]")) {
64 window.dump("Not an object!\n");
65 window.dump(xcls + "\n");
66 return false;
67 }
69 // Compare objects.
70 var xk = Object.keys(x), yk = Object.keys(y);
71 if (xk.length !== yk.length) {
72 window.dump("Length mismatch!\n");
73 return false;
74 }
75 for (var i = 0; i < xk.length; i++) {
76 // We must see the same property names in the same order.
77 if (xk[i] !== yk[i]) {
78 window.dump("wrong order\n");
79 return false;
80 }
82 // Put the property values on the stack to compare later.
83 stack.push([x[xk[i]], y[yk[i]]]);
84 }
86 // Record that we have seen this pair of objects.
87 memory.set(x, y);
88 rmemory.set(y, x);
89 }
90 }
91 return true;
92 }
94 function receiveMessage(evt)
95 {
96 if (isClone(evt.data, generator.next()))
97 window.parent.postMessage("TEST-PASS", "*");
98 else
99 window.parent.postMessage("TEST-FAIL", "*");
100 }
101 window.addEventListener("message", receiveMessage, false);
102 </script>
103 </head>
104 <body>
105 </body>
106 </html>
