test_procinfo_content_process.html

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<html>

<head>

  <meta charset="utf-8">

  <title>ChromeUtils.requestProcInfo() reports the current content process</title>

  <script src="/tests/SimpleTest/SimpleTest.js"></script>

  <link rel="stylesheet" href="/tests/SimpleTest/test.css"/>

</head>

<body>

<script>

"use strict";

add_task(async function test_content_process_info() {

  const pid = SpecialPowers.Services.appinfo.processID;

  const info = await SpecialPowers.spawnChrome([pid], async contentPid => {

    const { children } = await ChromeUtils.requestProcInfo();

    const child = children.find(c => c.pid == contentPid);

    if (!child) {

      return null;

    return {

      memory: child.memory,

      cpuTime: child.cpuTime,

      threadCount: child.threads.length,

      documentURIs: child.windows.map(w => w.documentURI?.spec),

};

});

  ok(info, `Got info for content process ${pid}`);

  ok(info.memory > 0, `Got some memory: ${info.memory}`);

  ok(info.cpuTime > 0, `Got some cpu time: ${info.cpuTime}`);

  ok(info.threadCount > 0, `Got some threads: ${info.threadCount}`);

ok(

    info.documentURIs.includes(location.href),

    "Got this document's window"

);

});

</script>

</body>

</html>