feat(e2e): Verify Test Notification on Desktop (#3162)

e2e/specs/notification_trigger/notification_badge_in_dock.test.js

@@ -0,0 +1,43 @@
+// Copyright (c) 2016-present Mattermost, Inc. All Rights Reserved.
+// See LICENSE.txt for license information.
+
+import {triggerTestNotification, verifyNotificationRecievedinDM} from './helpers';
+
+const fs = require('fs');
+
+const env = require('../../modules/environment');
+const {asyncSleep} = require('../../modules/utils');
+
+describe('Trigger Notification From desktop', function desc() {
+    this.timeout(400000);
+
+    const config = env.demoMattermostConfig;
+    let firstServer;
+
+    beforeEach(async () => {
+        env.cleanDataDir();
+        env.createTestUserDataDir();
+        env.cleanTestConfig();
+        fs.writeFileSync(env.configFilePath, JSON.stringify(config));
+        await asyncSleep(1000);
+        this.app = await env.getApp();
+        this.serverMap = await env.getServerMap(this.app);
+
+        const loadingScreen = this.app.windows().find((window) => window.url().includes('loadingScreen'));
+        await loadingScreen.waitForSelector('.LoadingScreen', {state: 'hidden'});
+        firstServer = this.serverMap[`${config.teams[0].name}___TAB_MESSAGING`].win;
+        await env.loginToMattermost(firstServer);
+        const textbox = await firstServer.waitForSelector('#post_textbox');
+        textbox.focus();
+    });
+
+    // This support to getBadge is only available for MacOS
+    env.shouldTest(it, process.platform === 'darwin')('should receive a notification on macOS', async () => {
+        await triggerTestNotification(firstServer);
+        const badgeValue = await this.app.evaluate(async ({app}) => {
+            return app.dock.getBadge();
+        });
+        badgeValue.should.equal('1');
+        await verifyNotificationRecievedinDM(firstServer);
+    });
+});