test_notification_browser_failure.html

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<!DOCTYPE html>

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

<script src="/tests/dom/serviceworkers/test/utils.js"></script>

<script src="MockAlertsService.js"></script>

<script src="NotificationTest.js"></script>

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

<script class="testbody">

add_task(async function test_notification_browser_failure() {

  /** @type {ServiceWorkerRegistration} */

  const registration = await setupServiceWorker("notification_empty_sw.js", ".")

  await MockAlertsService.mockFailure();

  try {

    await registration.showNotification("This must not succeed");

    ok(false, "showNotification after mockFailure unexpectedly succeeded");

  } catch (err) {

    is(err.constructor, TypeError, "It should throw TypeError");

ok(

      err.message.includes("Failed to show notification"),

      `Failing with the proper error message, got: ${err.message}`

);

});

</script>