third_party/WebKit/LayoutTests/fast/dom/Window/lookup-behavior.html - Issue 2452073002: Freeze global prototype chain per WebIDL

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Issue 2452073002: Freeze global prototype chain per WebIDL (Closed)

Patch Set: Test improvements Created 4 years, 1 month ago

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1 <!DOCTYPE html>	1 <!DOCTYPE html>

2 <title>Name look-up tests of Window interface</title>	2 <title>Name look-up tests of Window interface</title>

3 <!-- TODO(yukishiino): Change the name look-up behavior of Window and fix all th ese tests. -->	3 <!-- TODO(yukishiino): Change the name look-up behavior of Window and fix all th ese tests. -->

4 <script src="../../../resources/testharness.js"></script>	4 <script src="../../../resources/testharness.js"></script>

5 <script src="../../../resources/testharnessreport.js"></script>	5 <script src="../../../resources/testharnessreport.js"></script>

6 <div id="container"></div>	6 <div id="container"></div>

7 <script>	7 <script>

8 var global = this;	8 var global = this;

9 var container = document.getElementById('container');	9 var container = document.getElementById('container');

10	10

(...skipping 11 matching lines...) Expand all Loading...
22 assert_equals(window.__proto__, Window.prototype);	22 assert_equals(window.__proto__, Window.prototype);

23 assert_class_string(window.__proto__.__proto__, 'WindowProperties');	23 assert_class_string(window.__proto__.__proto__, 'WindowProperties');

24 assert_equals(window.__proto__.__proto__.__proto__, EventTarget.prototype);	24 assert_equals(window.__proto__.__proto__.__proto__, EventTarget.prototype);

25 }, "WindowProperties object should exist.");	25 }, "WindowProperties object should exist.");

26	26

27 test(function() {	27 test(function() {

28 var anchor = document.createElement('a');	28 var anchor = document.createElement('a');

29 anchor.id = 'myAnchor';	29 anchor.id = 'myAnchor';

30 container.appendChild(anchor);	30 container.appendChild(anchor);

31 assert_equals(window.myAnchor, anchor, "Named access should work when Window Properties is available.");	31 assert_equals(window.myAnchor, anchor, "Named access should work when Window Properties is available.");

32 // Remove the WindowProperties object from the prototype chain. This means,	32 // Look up the prototype chain and observe that the anchor is defined on the

33 // 'window' no longer supports named access.	33 // named properties object, no lower or higher.

34 Window.prototype.__proto__ = EventTarget.prototype;	34 assert_equals(window.__proto__.myAnchor, anchor, "Named access should work o n Window.prototype");

35 assert_equals(window.myAnchor, undefined, "Named access shouldn't work when WindowProperties is not available.");	35 assert_equals(window.__proto__.__proto__.myAnchor, anchor, "Named access sho uld work on named properties object");

	36 assert_equals(window.__proto__.__proto__.__proto__.myAnchor, undefined, "Nam ed access does not work on EventTarget.prototype");

	37 assert_equals(window.__proto__.__proto__.__proto__.__proto__.myAnchor, undef ined, "Named access does not work on Object.prototype");

36 }, "WindowProperties object should provide named access.");	38 }, "WindowProperties object should provide named access.");

37	39

38 test(function() {	40 test(function() {

39 assert_true(window.hasOwnProperty('onclick'), "Window's event handlers shoul d be own properties.");	41 assert_true(window.hasOwnProperty('onclick'), "Window's event handlers shoul d be own properties.");

40 assert_true(window.hasOwnProperty('alert'), "Window's methods should be own properties.");	42 assert_true(window.hasOwnProperty('alert'), "Window's methods should be own properties.");

41 }, "Window's members should be own members.");	43 }, "Window's members should be own members.");

42	44

43 // This test needs to run in the global scope.	45 // This test needs to run in the global scope.

44 assert_false(!!window.onclick, "window.onclick is not yet set.");	46 assert_false(!!window.onclick, "window.onclick is not yet set.");

45 var wasMyOnClickCalled = false;	47 var wasMyOnClickCalled = false;

46 var myOnClick = function() { wasMyOnClickCalled = true; };	48 var myOnClick = function() { wasMyOnClickCalled = true; };

47 var onclick = myOnClick;	49 var onclick = myOnClick;

48 assert_equals(window.onclick, myOnClick, "var declaration should be ignored, and window.onclick should be updated.");	50 assert_equals(window.onclick, myOnClick, "var declaration should be ignored, and window.onclick should be updated.");

49 window.dispatchEvent(new Event('click'));	51 window.dispatchEvent(new Event('click'));

50 assert_true(wasMyOnClickCalled, "myOnClick should have been called.");	52 assert_true(wasMyOnClickCalled, "myOnClick should have been called.");

51 </script>	53 </script>

52 </html>	54 </html>

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