| <!DOCTYPE html> |
| <title>[LenientThis] test</title> |
| <script src="../../resources/testharness.js"></script> |
| <script src="../../resources/testharnessreport.js"></script> |
| <script> |
| test(function() { |
| // GlobalEventHandlers.onmouseenter is [LenientThis]. |
| assert_equals(document.onmouseenter, null, "|this| is an appropriate object."); |
| assert_equals(Document.prototype.onmouseenter, undefined, "|this| is not an appropriate object."); |
| Document.prototype.onmouseenter = 'foo'; // must not throw. |
| assert_equals(Document.prototype.onmouseenter, undefined, "the value must not change."); |
| |
| // GlobalEventHandlers.onmousedown is NOT [LenientThis]. |
| assert_equals(document.onmousedown, null, "|this| is an appropriate object."); |
| assert_throws(null, function() { |
| Document.prototype.onmousedown; |
| }, "Document.prototype is invalid as |this|."); |
| assert_throws(null, function() { |
| Document.prototype.onmousedown = 'foo'; |
| }, "Document.prototype is invalid as |this|."); |
| }, "Test [LenientThis] and non-[LenientThis]."); |
| |
| test(function() { |
| var noop = function() {}; |
| var testPatterns = [ |
| {name: 'document', instance: document, holder: Document.prototype, noninstance: window}, |
| {name: 'window', instance: window, holder: window, noninstance: document} |
| ]; |
| function msg(pattern, text) { |
| return '[' + pattern.name + '] ' + text; |
| } |
| for (var p, i = 0; p = testPatterns[i]; ++i) { |
| var pd = Object.getOwnPropertyDescriptor(p.holder, 'onmouseleave'); |
| // get |
| assert_equals(pd.get.call(p.noninstance), undefined, msg(p, 'get: non-instance should return undefined.')); |
| assert_equals(pd.get.call(p.instance), null, msg(p, 'get: instance should return null by default.')); |
| |
| // set |
| assert_equals(pd.set.call(p.noninstance, noop), undefined, msg(p, 'set: setter always returns undefined.')); |
| assert_equals(pd.get.call(p.noninstance), undefined, msg(p, 'set: non-instance should returns undefined.')); |
| assert_equals(pd.set.call(p.instance, noop), undefined, msg(p, 'set: even instance should return undefined.')); |
| assert_equals(pd.get.call(p.instance), noop, msg(p, 'set: instance should return the assigned function.')); |
| } |
| |
| // document specific tests. |
| pd = Object.getOwnPropertyDescriptor(Document.prototype, 'onmouseleave'); |
| assert_equals(pd.get.call(null), undefined, '[document] get: null is not a valid instance.'); |
| assert_equals(pd.get.call(undefined), undefined, '[document] get: undefined is not a valid instance.'); |
| |
| // window specific tests. |
| pd = Object.getOwnPropertyDescriptor(window, 'onmouseleave'); |
| assert_equals(pd.get.call(null), noop, '[window] get: null should be interpreted as the global object.'); |
| assert_equals(pd.get.call(undefined), noop, '[window] get: undefined should be interpreted as the global object.'); |
| assert_equals(pd.set.call(undefined, null), undefined, '[window] set: returns undefined.'); |
| assert_equals(pd.get.call(undefined), null, '[window] set: should be updated.'); |
| |
| }, "Test with extracted accessors."); |
| </script> |
