| // include resources/js-test.js before this file. |
| |
| function getCounterValues(callback) { |
| testRunner.resetTestHelperControllers(); |
| asyncGC(function() { |
| var ret = { |
| 'numberOfLiveDocuments': window.internals.numberOfLiveDocuments(), |
| 'numberOfLiveAXObjects': window.internals.numberOfLiveAXObjects() |
| }; |
| |
| var refCountedInstances = JSON.parse(window.internals.dumpRefCountedInstanceCounts()); |
| for (typename in refCountedInstances) |
| ret['numberOfInstances-'+typename] = refCountedInstances[typename]; |
| |
| callback(ret); |
| }); |
| |
| } |
| |
| function compareValues(countersBefore, countersAfter, tolerance) { |
| for (type in tolerance) { |
| var before = countersBefore[type]; |
| var after = countersAfter[type]; |
| |
| if (after - before <= tolerance[type]) |
| testPassed('The difference of counter "'+type+'" before and after the cycle is under the threshold of '+tolerance[type]+'.'); |
| else |
| testFailed('counter "'+type+'" was '+before+' before and now '+after+' after the cycle. This exceeds the threshold of '+tolerance[type]+'.'); |
| } |
| } |
| |
| function doLeakTest(src, tolerance) { |
| var frame = document.createElement('iframe'); |
| document.body.appendChild(frame); |
| function loadSourceIntoIframe(src, callback) { |
| var originalSrc = frame.src; |
| |
| frame.onload = function() { |
| if (frame.src === originalSrc) |
| return true; |
| |
| callback(); |
| return true; |
| }; |
| frame.src = src; |
| } |
| |
| jsTestIsAsync = true; |
| if (!window.internals) { |
| debug("This test only runs on DumpRenderTree, as it requires existence of window.internals and cross-domain resource access check disabled."); |
| finishJSTest(); |
| } |
| |
| loadSourceIntoIframe('about:blank', function() { |
| // blank document loaded... |
| getCounterValues(function(countersBefore) { |
| loadSourceIntoIframe(src, function() { |
| // target document loaded... |
| |
| loadSourceIntoIframe('about:blank', function() { |
| // target document unloaded... |
| |
| // Measure counter values on next timer event. This is needed |
| // to correctly handle deref cycles for some ActiveDOMObjects |
| // such as XMLHttpRequest. |
| setTimeout(function() { |
| getCounterValues(function(countersAfter) { |
| compareValues(countersBefore, countersAfter, tolerance); |
| finishJSTest(); |
| }); |
| }, 0); |
| }); |
| }); |
| }); |
| }); |
| } |
| |
| function htmlToUrl(html) { |
| return 'data:text/html;charset=utf-8,' + html; |
| } |
| |
| function grabScriptText(id) { |
| return document.getElementById(id).innerText; |
| } |
| |
| // include fast/js/resources/js-test-post.js after this file. |