From 9e3c08db40b8916968b9f30096c7be3f00ce9647 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Sun, 21 Apr 2024 13:44:51 +0200 Subject: Adding upstream version 1:115.7.0. Signed-off-by: Daniel Baumann --- tools/profiler/tests/xpcshell/test_feature_js.js | 63 ++++++++++++++++++++++++ 1 file changed, 63 insertions(+) create mode 100644 tools/profiler/tests/xpcshell/test_feature_js.js (limited to 'tools/profiler/tests/xpcshell/test_feature_js.js') 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..a5949e4a0c --- /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 () => { + const entries = 10000; + const interval = 1; + const threads = []; + const features = ["js"]; + + await 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 stopNowAndGetProfile(); + + 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)" + // or + // "functionA (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(); +} -- cgit v1.2.3