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-rw-r--r--devtools/server/tests/browser/browser_perf-01.js57
1 files changed, 57 insertions, 0 deletions
diff --git a/devtools/server/tests/browser/browser_perf-01.js b/devtools/server/tests/browser/browser_perf-01.js
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+++ b/devtools/server/tests/browser/browser_perf-01.js
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+/* 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/. */
+"use strict";
+
+// This test is at the edge of timing out, probably because of LUL
+// initialization on Linux. This is also happening only once, which is why only
+// this test needs it: for other tests LUL is already initialized because
+// they're running in the same Firefox instance.
+// See also bug 1635442.
+requestLongerTimeout(2);
+
+/**
+ * Run through a series of basic recording actions for the perf actor.
+ */
+add_task(async function () {
+ const { front, client } = await initPerfFront();
+
+ // Assert the initial state.
+ is(
+ await front.isSupportedPlatform(),
+ true,
+ "This test only runs on supported platforms."
+ );
+ is(await front.isActive(), false, "The profiler is not active yet.");
+
+ // Start the profiler.
+ const profilerStarted = once(front, "profiler-started");
+ await front.startProfiler();
+ await profilerStarted;
+ is(await front.isActive(), true, "The profiler was started.");
+
+ // Stop the profiler and assert the results.
+ const profilerStopped1 = once(front, "profiler-stopped");
+ const profile = await front.getProfileAndStopProfiler();
+ await profilerStopped1;
+ is(await front.isActive(), false, "The profiler was stopped.");
+ ok("threads" in profile, "The actor was used to record a profile.");
+
+ // Restart the profiler.
+ await front.startProfiler();
+ is(await front.isActive(), true, "The profiler was re-started.");
+
+ // Stop and discard.
+ const profilerStopped2 = once(front, "profiler-stopped");
+ await front.stopProfilerAndDiscardProfile();
+ await profilerStopped2;
+ is(
+ await front.isActive(),
+ false,
+ "The profiler was stopped and the profile discarded."
+ );
+
+ // Clean up.
+ await front.destroy();
+ await client.close();
+});