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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 19:33:14 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 19:33:14 +0000 |
commit | 36d22d82aa202bb199967e9512281e9a53db42c9 (patch) | |
tree | 105e8c98ddea1c1e4784a60a5a6410fa416be2de /tools/profiler/tests/browser/browser_test_feature_nostacksampling.js | |
parent | Initial commit. (diff) | |
download | firefox-esr-36d22d82aa202bb199967e9512281e9a53db42c9.tar.xz firefox-esr-36d22d82aa202bb199967e9512281e9a53db42c9.zip |
Adding upstream version 115.7.0esr.upstream/115.7.0esr
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'tools/profiler/tests/browser/browser_test_feature_nostacksampling.js')
-rw-r--r-- | tools/profiler/tests/browser/browser_test_feature_nostacksampling.js | 72 |
1 files changed, 72 insertions, 0 deletions
diff --git a/tools/profiler/tests/browser/browser_test_feature_nostacksampling.js b/tools/profiler/tests/browser/browser_test_feature_nostacksampling.js new file mode 100644 index 0000000000..323a87e191 --- /dev/null +++ b/tools/profiler/tests/browser/browser_test_feature_nostacksampling.js @@ -0,0 +1,72 @@ +/* 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 the No Stack Sampling feature. + */ +add_task(async function test_profile_feature_nostacksampling() { + Assert.ok( + !Services.profiler.IsActive(), + "The profiler is not currently active" + ); + + await startProfiler({ features: ["js", "nostacksampling"] }); + + const url = BASE_URL + "do_work_500ms.html"; + await BrowserTestUtils.withNewTab(url, async contentBrowser => { + const contentPid = await SpecialPowers.spawn( + contentBrowser, + [], + () => Services.appinfo.processID + ); + + // Wait 500ms so that the tab finishes executing. + await wait(500); + + // Check that we can get no stacks when the feature is turned on. + { + const { parentThread, contentThread } = + await stopProfilerNowAndGetThreads(contentPid); + Assert.equal( + parentThread.samples.data.length, + 0, + "Stack samples were recorded from the parent process' main thread" + + "when the No Stack Sampling feature was turned on." + ); + Assert.equal( + contentThread.samples.data.length, + 0, + "Stack samples were recorded from the content process' main thread" + + "when the No Stack Sampling feature was turned on." + ); + } + + // Flush out any straggling allocation markers that may have not been collected + // yet by starting and stopping the profiler once. + await startProfiler({ features: ["js"] }); + + // Now reload the tab with a clean run. + gBrowser.reload(); + await wait(500); + + // Check that stack samples were recorded. + { + const { parentThread, contentThread } = + await waitSamplingAndStopProfilerAndGetThreads(contentPid); + Assert.greater( + parentThread.samples.data.length, + 0, + "No Stack samples were recorded from the parent process' main thread" + + "when the No Stack Sampling feature was not turned on." + ); + + Assert.greater( + contentThread.samples.data.length, + 0, + "No Stack samples were recorded from the content process' main thread" + + "when the No Stack Sampling feature was not turned on." + ); + } + }); +}); |