Source code
Revision control
Copy as Markdown
Other Tools
Test Info: Warnings
- This test gets skipped with pattern: tsan OR http3 OR http2
- Manifest: devtools/client/performance-new/test/browser/browser.toml
/* 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
"use strict";
add_task(async function test() {
info(
"Test the states of the profiler button, e.g. inactive, active, and capturing."
);
await setProfilerFrontendUrl(
"/browser/devtools/client/performance-new/test/browser/fake-frontend.html"
);
await makeSureProfilerPopupIsEnabled();
const { toggleProfiler, captureProfile } = ChromeUtils.importESModule(
);
const button = document.getElementById("profiler-button-button");
if (!button) {
throw new Error("Could not find the profiler button.");
}
info("The profiler button starts out inactive");
await checkButtonState(button, {
tooltip: "Record a performance profile",
active: false,
paused: false,
});
info("Toggling the profiler turns on the active state");
toggleProfiler("aboutprofiling");
await checkButtonState(button, {
tooltip: "The profiler is recording a profile",
active: true,
paused: false,
});
info("Capturing a profile makes the button paused");
captureProfile("aboutprofiling");
// The state "capturing" can be very quick, so waiting for the tooltip
// translation is racy. Let's only check the button's states.
await checkButtonState(button, {
active: false,
paused: true,
});
await waitUntil(
() => !button.classList.contains("profiler-paused"),
"Waiting until the profiler is no longer paused"
);
await checkButtonState(button, {
tooltip: "Record a performance profile",
active: false,
paused: false,
});
await checkTabLoadedProfile({
initialTitle: "Waiting on the profile",
successTitle: "Profile received",
errorTitle: "Error",
});
});
/**
* This check dives into the implementation details of the button, mainly
* because it's hard to provide a user-focused interpretation of button
* stylings.
*/
async function checkButtonState(button, { tooltip, active, paused }) {
is(
button.classList.contains("profiler-active"),
active,
`The expected profiler button active state is: ${active}`
);
is(
button.classList.contains("profiler-paused"),
paused,
`The expected profiler button paused state is: ${paused}`
);
if (tooltip) {
// Let's also check the tooltip, but because the translation happens
// asynchronously, we need a waiting mechanism.
await getElementByTooltip(document, tooltip);
}
}