On Thu, Sep 30, 2010 at 15:31, Adam Barth <[email protected]> wrote: > Tonight I wrote a new webkit-patch command for detecting flaky tests. > Here the tests that have flaked out on the Snow Leopard (Tests) build > bot during the last 2000 revisions. This makes a good "hit list" of > tests to fix to reduce flakiness. (The worst offenders are at the > bottom). > > Take aways: > > 1) compositing/geometry/limit-layer-bounds-transformed-overflow.html > is by far the worst offender. > 2) The websocket tests are ridiculously flaky. >
AFAIK the websocket tests are not so flaky on chromium (*). I wonder this is because of difference in platform code, but seems not so flaky on Leopard too. So, I suspect issues in test fixtures of websocket test (e.g. failed to start up pywebsocket server)? (*) http://test-results.appspot.com/dashboards/flakiness_dashboard.html#tests=websocket -- ukai > 3) The appcache tests also have a serious flakiness problem. > > I'll run the last 10000 revisions over night and report on the results. > > Adam > > > === Results === > Occurances Test name > 1 compositing/reflections/nested-reflection-animated.html > 1 fast/css/font-face-download-error.html > 1 fast/dom/collection-null-like-arguments.html > 1 fast/history/history-subframe-with-name.html > 1 > fast/js/sputnik/Conformance/13_Function_Definition/13.2_Creating_Function_Objects/S13.2.2_A5_T1.html > 1 > fast/js/sputnik/Conformance/13_Function_Definition/13.2_Creating_Function_Objects/S13.2.2_A5_T2.html > 1 fast/js/vardecl-preserve-arguments.html > 1 http/tests/appcache/different-https-origin-resource-main.html > 1 http/tests/appcache/fallback.html > 1 http/tests/appcache/manifest-redirect.html > 1 http/tests/appcache/origin-quota.html > 1 http/tests/appcache/resource-redirect.html > 1 http/tests/appcache/top-frame-3.html > 1 http/tests/appcache/update-cache.html > 1 http/tests/appcache/xhr-foreign-resource.html > 1 http/tests/cache/subresource-expiration.html > 1 http/tests/loading/basic-credentials-sent-automatically.html > 1 http/tests/misc/uncacheable-script-repeated.html > 1 http/tests/navigation/changing-frame-hierarchy-in-onload.html > 1 http/tests/navigation/ping-cross-origin-from-https.html > 1 http/tests/navigation/ping-cross-origin.html > 1 http/tests/navigation/post-goback-same-url.html > 1 http/tests/plugins/get-url.html > 1 http/tests/plugins/npapi-response-headers.html > 1 http/tests/plugins/third-party-cookie-accept-policy.html > 1 http/tests/security/credentials-in-referer.html > 1 > http/tests/security/cross-frame-access-protocol-explicit-domain.html > 1 inspector/debugger-pause-on-breakpoint.html > 1 inspector/extensions-events.html > 1 media/audio-constructor.html > 1 media/video-currentTime-set.html > 1 plugins/destroy-stream-twice.html > 1 > plugins/return-error-from-new-stream-doesnt-invoke-destroy-stream.html > 1 svg/custom/use-invalid-style.svg > 1 transitions/transition-end-event-transform.html > 1 websocket/tests/send.html > 1 websocket/tests/simple-stress.html > 1 websocket/tests/sub-protocol-with-space.html > 1 websocket/tests/url-no-trailing-slash.html > 1 websocket/tests/url-with-empty-query.html > 1 websocket/tests/url-with-query.html > 1 websocket/tests/websocket-pending-activity.html > 1 websocket/tests/workers/close-in-onmessage-crash.html > 2 http/tests/appcache/foreign-iframe-main.html > 2 http/tests/appcache/local-content.html > 2 http/tests/appcache/main-resource-hash.html > 2 http/tests/appcache/non-html.xhtml > 2 http/tests/appcache/reload.html > 2 http/tests/css/css-image-loading.html > 2 http/tests/plugins/cross-frame-object-access.html > 2 http/tests/security/cross-frame-access-port-explicit-domain.html > 2 security/block-test.html > 2 websocket/tests/bad-sub-protocol-non-ascii.html > 2 websocket/tests/handshake-fail-by-sub-protocol-mismatch.html > 2 websocket/tests/simple.html > 2 websocket/tests/unicode.html > 3 http/tests/appcache/cyrillic-uri.html > 3 http/tests/appcache/deferred-events-delete-while-raising.html > 3 http/tests/appcache/remove-cache.html > 3 http/tests/appcache/top-frame-4.html > 3 http/tests/navigation/image-load-in-unload-handler.html > 3 websocket/tests/handshake-fail-by-cross-origin.html > 3 websocket/tests/httponly-cookie.pl > 3 websocket/tests/long-invalid-header.html > 3 websocket/tests/sub-protocol.html > 3 websocket/tests/url-with-query-for-no-query.html > 4 fast/canvas/webgl/gl-object-get-calls.html > 4 http/tests/navigation/anchor-basic.html > 4 websocket/tests/bad-sub-protocol-control-chars.html > 4 websocket/tests/frame-length-longer-than-buffer.html > 4 websocket/tests/frame-length-skip.html > 4 websocket/tests/frame-lengths.html > 4 websocket/tests/reload-crash.html > 4 websocket/tests/url-with-credential.html > 5 websocket/tests/bad-sub-protocol-empty.html > 5 websocket/tests/error-detect.html > 5 websocket/tests/handshake-error.html > 6 websocket/tests/handshake-challenge-randomness.html > 6 websocket/tests/null-character.html > 7 http/tests/security/cross-origin-css.html > 7 websocket/tests/bufferedAmount-after-close.html > 7 websocket/tests/close-on-unload.html > 7 websocket/tests/frame-length-overflow.html > 7 websocket/tests/handshake-fail-by-no-cr.html > 8 websocket/tests/multiple-connections.html > 9 websocket/tests/alert-in-event-handler.html > 9 websocket/tests/close-on-unload-and-force-gc.html > 10 websocket/tests/bad-handshake-crash.html > 11 websocket/tests/cross-origin.html > 12 http/tests/navigation/ping-same-origin.html > 13 websocket/tests/close-on-unload-reference-in-parent.html > 15 websocket/tests/close-on-navigate-new-location.html > 19 media/audio-controls-rendering.html > 50 compositing/geometry/limit-layer-bounds-transformed-overflow.html > 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