Mypal68/browser/base/content/test/plugins/browser_globalplugin_crashinfobar.js

/**
 * Test that the notification bar for crashed GMPs works.
 */
add_task(async function() {
  await BrowserTestUtils.withNewTab(
    {
      gBrowser,
      url: "about:blank",
    },
    async function(browser) {
      await ContentTask.spawn(browser, null, async function() {
        const GMP_CRASH_EVENT = {
          pluginID: 1,
          pluginName: "GlobalTestPlugin",
          submittedCrashReport: false,
          bubbles: true,
          cancelable: true,
          gmpPlugin: true,
        };

        let crashEvent = new content.PluginCrashedEvent(
          "PluginCrashed",
          GMP_CRASH_EVENT
        );
        content.dispatchEvent(crashEvent);
      });

      let notification = await waitForNotificationBar(
        "plugin-crashed",
        browser
      );

      let notificationBox = gBrowser.getNotificationBox(browser);
      ok(notification, "Infobar was shown.");
      is(
        notification.priority,
        notificationBox.PRIORITY_WARNING_MEDIUM,
        "Correct priority."
      );
      is(
        notification.messageText.textContent,
        "The GlobalTestPlugin plugin has crashed.",
        "Correct message."
      );
    }
  );
});