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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-28 14:29:10 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-28 14:29:10 +0000 |
commit | 2aa4a82499d4becd2284cdb482213d541b8804dd (patch) | |
tree | b80bf8bf13c3766139fbacc530efd0dd9d54394c /tools/profiler/tests/xpcshell/test_feature_js.js | |
parent | Initial commit. (diff) | |
download | firefox-2aa4a82499d4becd2284cdb482213d541b8804dd.tar.xz firefox-2aa4a82499d4becd2284cdb482213d541b8804dd.zip |
Adding upstream version 86.0.1.upstream/86.0.1upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'tools/profiler/tests/xpcshell/test_feature_js.js')
-rw-r--r-- | tools/profiler/tests/xpcshell/test_feature_js.js | 63 |
1 files changed, 63 insertions, 0 deletions
diff --git a/tools/profiler/tests/xpcshell/test_feature_js.js b/tools/profiler/tests/xpcshell/test_feature_js.js new file mode 100644 index 0000000000..a2c328c051 --- /dev/null +++ b/tools/profiler/tests/xpcshell/test_feature_js.js @@ -0,0 +1,63 @@ +/* This Source Code Form is subject to the terms of the Mozilla Public + * License, v. 2.0. If a copy of the MPL was not distributed with this + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ + +/** + * Test that JS capturing works as expected. + */ +add_task(async () => { + if (!AppConstants.MOZ_GECKO_PROFILER) { + return; + } + const entries = 10000; + const interval = 1; + const threads = []; + const features = ["js"]; + + Services.profiler.StartProfiler(entries, interval, features, threads); + + // Call the following to get a nice stack in the profiler: + // functionA -> functionB -> functionC -> captureAtLeastOneJsSample + const sampleIndex = await functionA(); + + const profile = await Services.profiler.getProfileDataAsync(); + const [thread] = profile.threads; + const { samples } = thread; + + const inflatedStackFrames = getInflatedStackLocations( + thread, + samples.data[sampleIndex] + ); + + expectStackToContain( + inflatedStackFrames, + [ + "(root)", + "js::RunScript", + // The following regexes match a string similar to: + // + // "functionA (/gecko/obj/_tests/xpcshell/tools/profiler/tests/xpcshell/test_feature_js.js:47:0)" + // + // this matches the script location + // | match the line number + // | | match the column number + // v v v + /^functionA \(.+test_feature_js\.js:\d+:\d+\)$/, + /^functionB \(.+test_feature_js\.js:\d+:\d+\)$/, + /^functionC \(.+test_feature_js\.js:\d+:\d+\)$/, + ], + "The stack contains a few frame labels, as well as the JS functions that we called." + ); +}); + +function functionA() { + return functionB(); +} + +function functionB() { + return functionC(); +} + +async function functionC() { + return captureAtLeastOneJsSample(); +} |