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Xeicker
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Xeicker
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What's the context for this PR? |
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@IvanBM18 Found some 404 errors on aluminum fuzzers that uncover this bug. Adding context in the description |
dylanjew
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Oct 30, 2026
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Thanks! is there a bug for this?
And is there a way to run the test syncer job to verify it as well? If you change it to just log the error this is less critical.
dylanjew
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The bug is in b/570581291 |
Xeicker
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Add static HTTP_ALIASES in http_server.py for legacy Gecko Mochitest, Blink, and WebKit test-server mounts, verify all alias target directories exist before zipping web_tests.zip in chrome_tests_syncer.py, strip URL queries/fragments before resolving local paths, and log 404 misses at INFO level.
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Context:
When blackbox browser fuzzing (E.g.
inferno_layout_test_fuzzer) serves corpus testcases from web_tests.zip over BotHTTPServer (e.g., on Android emulators where FUZZ_DATA is served via HTTP), root-relative test-harness URLs (/tests/SimpleTest/..., /MochiKit/..., /js-test-resources/..., etc.) and WPT ?pipe= query URLs fail with 404 (Could not find an absolute path for ...). Missing harness scripts (SimpleTest.js, js-test.js) abort testcase JS execution with ReferenceErrorWhat this fixes
Resolves 404s when
BotHTTPServerserves legacy Mochitest, Blink, and WebKit test-harness paths (/tests/SimpleTest/...,/MochiKit/...,/js-test-resources/..., etc.) and?pipe=query URLs fromweb_tests.zip, with a directory check inchrome_tests_syncer.pyso upstream renames fail loudly at sync time.Why not reuse Chromium's native web-test server setup: Chromium's
run_web_tests(apache_http.py/wptserve) runs separate servers/ports per suite, which collides with ClusterFuzz serving Blink, WPT, WebKit, Gecko, data bundles, and generated testcases from a singleBotHTTPServerport (where paths like/resources/overlap across suites) and relying onhttp_server.get_absolute_testcase_file()in Python to package crash dependencies.Testing:
http_server_test.py,chrome_tests_syncer_test.py) andbutler.py lint.inferno_layout_test_fuzzeron an Android emulator blackbox job (413→0aliased/query 404s;418→0WARNING404s).