test_ext_background_page.html

Enable keyboard shortcuts

<!DOCTYPE HTML>

<html>

  <head>

    <title>WebExtension test</title>

    <meta charset="utf-8">

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

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

    <script src="head.js" type="text/javascript"></script>

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

  </head>

  <body>

    <script type="text/javascript">

      "use strict";

      /* eslint-disable mozilla/balanced-listeners */

      add_task(async function testAlertNotShownInBackgroundWindow() {

        let extension = ExtensionTestUtils.loadExtension({

          background: function () {

            alert("I am an alert in the background.");

            browser.test.notifyPass("alertCalled");

});

        let consoleOpened = loadChromeScript(() => {

          const {sendAsyncMessage, assert} = this;

          assert.ok(!Services.wm.getEnumerator("alert:alert").hasMoreElements(), "Alerts should not be present at the start of the test.");

          Services.obs.addObserver(function observer() {

            sendAsyncMessage("web-console-created");

            Services.obs.removeObserver(observer, "web-console-created");

          }, "web-console-created");

});

        let opened = consoleOpened.promiseOneMessage("web-console-created");

        consoleMonitor.start([

            message: /alert\(\) is not supported in background windows/

          }, {

            message: /I am an alert in the background/

]);

        await extension.startup();

        await extension.awaitFinish("alertCalled");

        let chromeScript = loadChromeScript(async () => {

          const {assert} = this;

          assert.ok(!Services.wm.getEnumerator("alert:alert").hasMoreElements(), "Alerts should not be present after calling alert().");

});

        chromeScript.destroy();

        await consoleMonitor.finished();

        await opened;

        consoleOpened.destroy();

        chromeScript = loadChromeScript(async () => {

          const {sendAsyncMessage} = this;

          let {require} = ChromeUtils.importESModule("resource://devtools/shared/loader/Loader.sys.mjs");

          require("devtools/client/framework/devtools-browser");

          let {BrowserConsoleManager} = require("devtools/client/webconsole/browser-console-manager");

          // And then double check that we have an actual browser console.

          let haveConsole = !!BrowserConsoleManager.getBrowserConsole();

          if (haveConsole) {

            await BrowserConsoleManager.toggleBrowserConsole();

          sendAsyncMessage("done", haveConsole);

});

        let consoleShown = await chromeScript.promiseOneMessage("done");

        ok(consoleShown, "console was shown");

        chromeScript.destroy();

        await extension.unload();

});

    </script>

  </body>

</html>