| <html> |
| <head> |
| <title>GC test 10</title> |
| <script> |
| function print(message, color) |
| { |
| var paragraph = document.createElement("div"); |
| paragraph.appendChild(document.createTextNode(message)); |
| paragraph.style.fontFamily = "monospace"; |
| if (color) |
| paragraph.style.color = color; |
| document.getElementById("console").appendChild(paragraph); |
| } |
| |
| var threshold = 5; |
| |
| function test() |
| { |
| if (window.testRunner) |
| testRunner.dumpAsText(); |
| |
| if (window.GCController) |
| { |
| global = window.frames.myframe.location.reload; // Eagerly construct these properties so they don't influence test outcome. |
| |
| GCController.collect(); |
| var before = GCController.getJSObjectCount(); |
| |
| window.frames.myframe.location.reload(true); |
| window.frames.myframe.location.reload(true); |
| window.frames.myframe.location.reload(true); |
| |
| GCController.collect(); |
| var after = GCController.getJSObjectCount(); |
| |
| // Unfortunately we cannot do a strict check here because there is still very minor (3) JS object increase, |
| // likely due to temporary JS objects being created during further execution of this test function. |
| // However, the iframe document leaking everything has an addition of ~25 objects every |
| // refresh, so it still is an accurate test. |
| if (after > (before + threshold)) |
| { |
| print("FAIL: " + before + " objects before refresh, " + after + " objects after refresh.", "red"); |
| } |
| else |
| { |
| print("PASS: Refresh did not leak JS objects.", "green"); |
| } |
| } |
| else |
| { |
| print("WARNING: Test cannot run if GCController does not exist. Thus it only runs from the test interface.", "red"); |
| } |
| } |
| |
| </script> |
| </head> |
| |
| <body style="color: black" onload="test()"> |
| <p>This page tests to make sure that the refresh of a page which holds a document reference in its DOM wrapper tree |
| does not leak all of its associated JS objects.</p> |
| <p>If the test passes, you'll see a single 'PASS' message below.</p> |
| <hr> |
| |
| <div id='console'></div> |
| |
| <iframe name="myframe" id="myframe" src="resources/gc-10-frame.html"> |
| </body> |
| </html> |
