diff --git a/web/gui2/src/main/webapp/app/fw/mast/mast/mast.component.spec.ts b/web/gui2/src/main/webapp/app/fw/mast/mast/mast.component.spec.ts
new file mode 100644
index 0000000..3d061a5
--- /dev/null
+++ b/web/gui2/src/main/webapp/app/fw/mast/mast/mast.component.spec.ts
@@ -0,0 +1,131 @@
+/*
+ * Copyright 2015-present Open Networking Foundation
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+import { async, ComponentFixture, TestBed } from '@angular/core/testing';
+import { DebugElement } from '@angular/core';
+import { By } from '@angular/platform-browser';
+
+import { LogService } from '../../../log.service';
+import { ConsoleLoggerService } from '../../../consolelogger.service';
+import { MastComponent } from './mast.component';
+import { IconComponent } from '../../svg/icon/icon.component';
+import { LionService } from '../../util/lion.service';
+import { IconService } from '../../svg/icon.service';
+import { NavService } from '../../nav/nav.service';
+import { WebSocketService } from '../../remote/websocket.service';
+
+class MockNavService {}
+
+class MockIconService {
+    loadIconDef() {}
+}
+
+class MockWebSocketService {
+    createWebSocket() {}
+    isConnected() { return false; }
+    unbindHandlers() {}
+    bindHandlers() {}
+}
+
+/**
+ * ONOS GUI -- Masthead Controller - Unit Tests
+ */
+describe('MastComponent', () => {
+    let log: LogService;
+    let windowMock: Window;
+    let component: MastComponent;
+    let fixture: ComponentFixture<MastComponent>;
+    const bundleObj = {
+        'core.view.App': {
+            test: 'test1',
+            tt_help: 'Help!'
+        }
+    };
+    const mockLion = (key) =>  {
+        return bundleObj[key] || '%' + key + '%';
+    };
+
+    beforeEach(async(() => {
+        log = new ConsoleLoggerService();
+        windowMock = <any>{
+            location: <any> {
+                hostname: 'foo',
+                pathname: 'apps',
+                host: 'foo',
+                port: '80',
+                protocol: 'http',
+                search: { debug: 'true'},
+                href: 'ws://foo:123/onos/ui/websock/path',
+                absUrl: 'ws://foo:123/onos/ui/websock/path'
+            }
+        };
+
+        TestBed.configureTestingModule({
+            declarations: [ MastComponent, IconComponent ],
+            providers: [
+                { provide: LogService, useValue: log },
+                { provide: NavService, useClass: MockNavService },
+                { provide: LionService, useFactory: (() => {
+                        return {
+                            bundle: ((bundleId) => mockLion),
+                            ubercache: new Array(),
+                            loadCbs: new Map<string, () => void>([])
+                        };
+                    })
+                },
+                { provide: IconService, useClass: MockIconService },
+                { provide: WebSocketService, useClass: MockWebSocketService },
+                { provide: 'Window', useValue: windowMock }
+            ]
+        })
+        .compileComponents();
+    }));
+
+    beforeEach(() => {
+        fixture = TestBed.createComponent(MastComponent);
+        component = fixture.debugElement.componentInstance;
+        fixture.detectChanges();
+    });
+
+    it('should create', () => {
+        expect(component).toBeTruthy();
+    });
+
+    it('should have a div#mast-top-block', () => {
+        const appDe: DebugElement = fixture.debugElement;
+        const divDe = appDe.query(By.css('div#mast-top-block'));
+        expect(divDe).toBeTruthy();
+    });
+
+    it('should have a span.nav-menu-button inside a div#mast', () => {
+        const appDe: DebugElement = fixture.debugElement;
+        const divDe = appDe.query(By.css('div#mast span.nav-menu-button'));
+        expect(divDe).toBeTruthy();
+    });
+
+    it('should have a div.dropdown-parent inside a div#mast-right inside a div#mast', () => {
+        const appDe: DebugElement = fixture.debugElement;
+        const divDe = appDe.query(By.css('div#mast div#mast-right div.dropdown-parent'));
+        const div: HTMLElement = divDe.nativeElement;
+        expect(div.textContent).toEqual('  %logout% ');
+    });
+
+    it('should have an onos-icon inside a div#mast-right inside a div#mast', () => {
+        const appDe: DebugElement = fixture.debugElement;
+        const divDe = appDe.query(By.css('div#mast div#mast-right div.ctrl-btns div.active onos-icon'));
+        expect(divDe).toBeTruthy();
+    });
+
+});