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Revert "WPT: Allow
window.onload
to contain multiple test()
s"
This reverts commit 4a03c6c459fdbf11976a424aa02a1d094484134c. Reason for revert: This has caused tests in upstream WPT to fail, blocking unrelated PRs. It was still possible to upstream this because those tests weren't triggered on the change due to a bug: web-platform-tests#37623 There was an attempted fix for this: web-platform-tests#37549 But, quoting jgraham from the WPT Matrix chat: > the actual fix failed a test I wrote and now I need to spend some more time investigating Original change's description: > WPT: Allow `window.onload` to contain multiple `test()`s > > ****************************************************************** > *** SHERIFFS: please don't revert this CL if it causes web_tests > to flake/fail. If that happens, the cause is a bad > test. Please mark that test as flaky/fail in > TestExpectations, with a new crbug. Please block the > new bug against crbug.com/1395228. Thanks! > ****************************************************************** > > Prior to this CL, a test like this: > > ``` > <script> > window.onload = () => { > test((t) => { ... }, 'test 1'); > test((t) => { ... }, 'test 2'); > test((t) => { ... }, 'test 3'); > }; > </script> > ``` > > would not run anything after test #1. The issue is that the testharness > immediately adds a window load handler that marks `all_loaded = true`, > and that ends the tests as soon as the first result from the first test > is processed. (The test runner waits for the first test because > `Tests.prototype.all_done()` also waits until `this.tests.length > 0`.) > There were various mitigating corner cases, such as if you started > the list of tests with a promise_test(), that would increment a > counter that kept the rest of the tests alive. Etc. > > With this CL, the testharness-added window.onload handler runs a > setTimeout(0), so that `all_loaded` is only set to true after all of > the tests are loaded by any window.onload handler. > > This exposed a few tests that should have been failing but were > masked by the lack of test coverage - bugs have been filed for > those. Also, several tests that were working around this via various > means are also cleaned up in this CL. I'm sure there are more of > those. > > Bug: 1395228,1395226,1307772 > Change-Id: I6f12b5922186af4e1e06808ad23b47ceac68559c > Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/4074305 > Reviewed-by: Weizhong Xia <weizhong@google.com> > Auto-Submit: Mason Freed <masonf@chromium.org> > Reviewed-by: Mason Freed <masonf@chromium.org> > Commit-Queue: Mason Freed <masonf@chromium.org> > Reviewed-by: Xianzhu Wang <wangxianzhu@chromium.org> > Cr-Commit-Position: refs/heads/main@{#1081558} Bug: 1395228,1395226,1307772 Change-Id: Icbddad3a8bb47473bcbc331f424661b9041addf2 Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/4111318 Reviewed-by: David Baron <dbaron@chromium.org> Commit-Queue: Philip Jägenstedt <foolip@chromium.org> Cr-Commit-Position: refs/heads/main@{#1085925}
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