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/* Any copyright is dedicated to the Public Domain.
* http://creativecommons.org/publicdomain/zero/1.0/ */
"use strict";
/**
* Test for the thread helpers utility module.
*
* This uses a xpcshell test in order to avoid recording the noise
* of all Firefox components when using a mochitest.
*/
const { traceAllJSCalls } = ChromeUtils.importESModule(
"resource://devtools/shared/test-helpers/thread-helpers.sys.mjs"
);
// ESLint thinks this is a browser test, but it's actually an xpcshell
// test and so `setTimeout` isn't available out of the box.
// eslint-disable-next-line mozilla/no-redeclare-with-import-autofix
const { setTimeout } = ChromeUtils.importESModule(
"resource://gre/modules/Timer.sys.mjs"
);
add_task(async function sanityCheck() {
let ranTheOtherEventLoop = false;
setTimeout(function otherEventLoop() {
ranTheOtherEventLoop = true;
}, 0);
const jsTracer = traceAllJSCalls();
function foo() {}
for (let i = 0; i < 10; i++) {
foo();
}
jsTracer.stop();
ok(
!ranTheOtherEventLoop,
"When we don't pause frame execution, the other event do not execute"
);
});
add_task(async function withPrefix() {
const jsTracer = traceAllJSCalls({ prefix: "my-prefix" });
function foo() {}
for (let i = 0; i < 10; i++) {
foo();
}
jsTracer.stop();
ok(true, "Were able to run with a prefix argument");
});
add_task(async function pause() {
const start = Cu.now();
let ranTheOtherEventLoop = false;
setTimeout(function otherEventLoop() {
ranTheOtherEventLoop = true;
}, 0);
const jsTracer = traceAllJSCalls({ pause: 100 });
function foo() {}
for (let i = 0; i < 10; i++) {
foo();
}
jsTracer.stop();
const duration = Cu.now() - start;
ok(
duration > 10 * 100,
"The execution of the for loop was slow down by at least the pause duration in each loop"
);
ok(
ranTheOtherEventLoop,
"When we pause frame execution, the other event can execute"
);
});
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