From 2aa4a82499d4becd2284cdb482213d541b8804dd Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Sun, 28 Apr 2024 16:29:10 +0200 Subject: Adding upstream version 86.0.1. Signed-off-by: Daniel Baumann --- .../browser_test_feature_nostacksampling.js | 78 ++++++++++++++++++++++ 1 file changed, 78 insertions(+) create mode 100644 tools/profiler/tests/browser/browser_test_feature_nostacksampling.js (limited to 'tools/profiler/tests/browser/browser_test_feature_nostacksampling.js') 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..0fdae614ee --- /dev/null +++ b/tools/profiler/tests/browser/browser_test_feature_nostacksampling.js @@ -0,0 +1,78 @@ +/* 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() { + if (!AppConstants.MOZ_GECKO_PROFILER) { + return; + } + Assert.ok( + !Services.profiler.IsActive(), + "The profiler is not currently active" + ); + + startProfiler({ features: ["threads", "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. + startProfiler({ features: ["threads", "js"] }); + + // Now reload the tab with a clean run. + gBrowser.reload(); + await wait(500); + + // Check that stack samples were recorded. + { + const { parentThread, contentThread } = await stopProfilerAndGetThreads( + 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." + ); + } + }); +}); -- cgit v1.2.3