browser_UsageTelemetry_content_aboutRestartRequired.js

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"use strict";

const SCALAR_BUILDID_MISMATCH = "dom.contentprocess.buildID_mismatch";

add_task(async function test_aboutRestartRequired() {

  const { TabCrashHandler } = ChromeUtils.importESModule(

    "resource:///modules/ContentCrashHandlers.sys.mjs"

);

  // Let's reset the counts.

  Services.telemetry.clearScalars();

  let scalars = TelemetryTestUtils.getProcessScalars("parent");

  // Check preconditions

is(

    scalars[SCALAR_BUILDID_MISMATCH],

    undefined,

    "Build ID mismatch count should be undefined"

);

  // Simulate buildID mismatch

  TabCrashHandler._crashedTabCount = 1;

  TabCrashHandler.sendToRestartRequiredPage(gBrowser.selectedTab.linkedBrowser);

  scalars = TelemetryTestUtils.getProcessScalars("parent");

is(

    scalars[SCALAR_BUILDID_MISMATCH],

1,

    "Build ID mismatch count should be 1."

);

});