[No QA] Add Pusher Automated Tests

__mocks__/@react-native-community/push-notification-ios.js

@@ -0,0 +1,5 @@
+export default {
+    addEventListener: jest.fn(),
+    requestPermissions: jest.fn(() => Promise.resolve()),
+    getInitialNotification: jest.fn(() => Promise.resolve()),
+};

__mocks__/pusher-js/react-native.js

@@ -0,0 +1,3 @@
+import {PusherMock} from 'pusher-js-mock';
+
+export default PusherMock;

__mocks__/urbanairship-react-native.js

@@ -1,3 +1,12 @@
 export default {
     setUserNotificationsEnabled: jest.fn(),
 };
+
+const EventType = {
+    NotificationResponse: 'notificationResponse',
+    PushReceived: 'pushReceived',
+};
+
+export {
+    EventType,
+};

package.json

@@ -110,6 +110,7 @@
     "jest-circus": "^26.5.2",
     "jest-cli": "^26.5.2",
     "metro-react-native-babel-preset": "^0.61.0",
+    "pusher-js-mock": "^0.3.3",
     "react-hot-loader": "^4.12.21",
     "react-native-svg-transformer": "^0.14.3",
     "react-native-version": "^4.0.0",

tests/actions/ReportTest.js

@@ -0,0 +1,73 @@
+import moment from 'moment';
+import Onyx from 'react-native-onyx';
+import ONYXKEYS from '../../src/ONYXKEYS';
+import * as Pusher from '../../src/libs/Pusher/pusher';
+import PusherConnectionManager from '../../src/libs/PusherConnectionManager';
+import CONFIG from '../../src/CONFIG';
+import {subscribeToReportCommentEvents} from '../../src/libs/actions/Report';
+import waitForPromisesToResolve from '../utils/waitForPromisesToResolve';
+
+describe('actions/Report', () => {
+    it('should subscribe to the private-user-accountID channel and handle reportComment events', () => {
+        const REPORT_ID = 1;
+        const ACTION_ID = 1;
+        const REPORT_ACTION = {
+            actionName: 'ADDCOMMENT',
+            automatic: false,
+            created: 'Nov 6 2020 9:14am PST',
+            message: [{type: 'COMMENT', html: 'Testing a comment', text: 'Testing a comment'}],
+            person: [{type: 'TEXT', style: 'strong', text: 'Test User'}],
+            shouldShow: true,
+            timestamp: moment().unix(),
+            actorAccountID: 1,
+            sequenceNumber: ACTION_ID,
+            isAttachment: false,
+            loading: false,
+        };
+
+        // When using the Pusher mock the act of calling Pusher.isSubscribed will create a
+        // channel already in a subscribed state. These methods are normally used to prevent
+        // duplicated subscriptions, but we don't need them for this test.
+        Pusher.isSubscribed = jest.fn().mockReturnValue(false);
+        Pusher.isAlreadySubscribing = jest.fn().mockReturnValue(false);
+
+        // Connect to Pusher
+        PusherConnectionManager.init();
+        Pusher.init({
+            appKey: CONFIG.PUSHER.APP_KEY,
+            cluster: CONFIG.PUSHER.CLUSTER,
+            authEndpoint: `${CONFIG.EXPENSIFY.URL_API_ROOT}api?command=Push_Authenticate`,
+        });
+
+        let reportActions;
+        Onyx.connect({
+            key: `${ONYXKEYS.COLLECTION.REPORT_ACTIONS}${REPORT_ID}`,
+            callback: val => reportActions = val,
+        });
+
+        // Set up Onyx with some test user data
+        Onyx.set(ONYXKEYS.SESSION, {accountID: 1, email: 'test@test.com'});
+        return waitForPromisesToResolve()
+            .then(() => {
+                subscribeToReportCommentEvents();
+                return waitForPromisesToResolve();
+            })
+            .then(() => {
+                // Now that we are subscribed we need to simulate a reportComment action Pusher event.
+                // Then verify that action was handled correctly and merged into the reportActions.
+                const channel = Pusher.getChannel('private-user-accountID-1');
+                channel.emit('reportComment', {
+                    reportID: REPORT_ID,
+                    reportAction: REPORT_ACTION,
+                });
+
+                // Once this happens we should see the comment get processed by the callback and added to the
+                // storage so we must wait for promises to resolve again and then verify the data is in Onyx.
+                return waitForPromisesToResolve();
+            })
+            .then(() => {
+                const resultAction = reportActions[ACTION_ID];
+                expect(resultAction).toEqual(REPORT_ACTION);
+            });
+    });
+});