LayoutTests/netinfo/gc-frame-listeners.html - Issue 291203002: Adds NetInfo v3 Web API to Blink.

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Side by Side Diff: LayoutTests/netinfo/gc-frame-listeners.html

Issue 291203002: Adds NetInfo v3 Web API to Blink. (Closed) Base URL: https://chromium.googlesource.com/chromium/blink.git@netinfo1

Patch Set: Comment typo Created 6 years, 6 months ago

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	1 <!DOCTYPE html>

	2 <head>

	3 <script src="../resources/js-test.js"></script>

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

	5 </head>

	6 <body>

	7 <script>

	8

	9 description('Tests that listeners in closed frames are collected.');

	10

	11 shouldBe('typeof window.internals.observeGC', '"function"',

	12 'this test requires window.internals');

	13

	14 var childFrame = document.createElement('iframe');

	15 var childFrameObserver = internals.observeGC(childFrame);

	16

	17 document.body.appendChild(childFrame);

	18

	19 var childConnection = childFrame.contentWindow.navigator.connection;

	20 var childConnectionObserver = internals.observeGC(childConnection);

	21

	22 var callback = function(e) {

	23 testFailed("Should not get here.");

	24 };

	25 var callbackObserver = internals.observeGC(callback);

	26

	27 // Add the event listener and make sure it doesn't get collected.

	28 childConnection.addEventListener('typechange', callback);

	29 childConnection = null;

	30 callback = null;

	31 gc();

	32 childFrame.contentWindow.gc();

	33 shouldBeFalse('childFrameObserver.wasCollected');

	34 shouldBeFalse('childConnectionObserver.wasCollected');

	35 shouldBeFalse('callbackObserver.wasCollected');

	36

	37 document.body.removeChild(childFrame);

	38 childFrame = null;

	39 gc();

	40 shouldBeTrue('childFrameObserver.wasCollected');

	41 shouldBeTrue('childConnectionObserver.wasCollected');

	42 shouldBeTrue('callbackObserver.wasCollected');

	43

	44 finishJSTest();

	45

	46 </script>

	47 </body>

	48 </html>

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