[MM-39839] Changes for writing unit tests, some re-org (#1849)

* Move tests to individual folders

* Moved e2e tests to e2e folder, fixed lint issues

* Lint fix

e2e/specs/main/user_activity_monitor_test.js

@@ -0,0 +1,69 @@
+// Copyright (c) 2016-present Mattermost, Inc. All Rights Reserved.
+// See LICENSE.txt for license information.
+import assert from 'assert';
+
+import UserActivityMonitor from '../../../src/main/UserActivityMonitor';
+
+describe('UserActivityMonitor', () => {
+    describe('updateIdleTime', () => {
+        it('should set idle time to provided value', () => {
+            const userActivityMonitor = new UserActivityMonitor();
+            const idleTime = Math.round(Date.now() / 1000);
+            userActivityMonitor.updateIdleTime(idleTime);
+            assert.equal(userActivityMonitor.userIdleTime, idleTime);
+        });
+    });
+
+    describe('updateUserActivityStatus', () => {
+        let userActivityMonitor;
+
+        beforeEach(() => {
+            userActivityMonitor = new UserActivityMonitor();
+        });
+
+        it('should set user status to active', () => {
+            userActivityMonitor.setActivityState(true);
+            assert.equal(userActivityMonitor.userIsActive, true);
+        });
+        it('should set user status to inactive', () => {
+            userActivityMonitor.setActivityState(false);
+            assert.equal(userActivityMonitor.userIsActive, false);
+        });
+    });
+
+    describe('sendStatusUpdate', () => {
+        let userActivityMonitor;
+
+        beforeEach(() => {
+            userActivityMonitor = new UserActivityMonitor();
+        });
+
+        it('should emit a non-system triggered status event indicating a user is active', () => {
+            userActivityMonitor.on('status', ({userIsActive, isSystemEvent}) => {
+                assert.equal(userIsActive && !isSystemEvent, true);
+            });
+            userActivityMonitor.setActivityState(true, false);
+        });
+
+        it('should emit a non-system triggered status event indicating a user is inactive', () => {
+            userActivityMonitor.on('status', ({userIsActive, isSystemEvent}) => {
+                assert.equal(!userIsActive && !isSystemEvent, true);
+            });
+            userActivityMonitor.setActivityState(false, false);
+        });
+
+        it('should emit a system triggered status event indicating a user is active', () => {
+            userActivityMonitor.on('status', ({userIsActive, isSystemEvent}) => {
+                assert.equal(userIsActive && isSystemEvent, true);
+            });
+            userActivityMonitor.setActivityState(true, true);
+        });
+
+        it('should emit a system triggered status event indicating a user is inactive', () => {
+            userActivityMonitor.on('status', ({userIsActive, isSystemEvent}) => {
+                assert.equal(!userIsActive && isSystemEvent, true);
+            });
+            userActivityMonitor.setActivityState(false, true);
+        });
+    });
+});