cor-tab-panel emits first registered tab ID if active tab is undefined

adding e2e tests for cor-tabs

static/test/e2e/image-repo.scenario.ts

@@ -0,0 +1,51 @@
+import { browser, element, by, $, $$ } from 'protractor';
+import { appHost } from '../protractor.conf';
+import { CorTabsViewObject } from '../../js/directives/ui/cor-tabs/cor-tabs.view-object';
+
+
+describe("Image Repository", () => {
+  const username = 'devtable';
+  const password = 'password';
+  const repoTabs: CorTabsViewObject = new CorTabsViewObject();
+
+  beforeAll((done) => {
+    browser.waitForAngularEnabled(false);
+
+    // Sign in
+    browser.get(appHost);
+    $$('a[href="/signin/"]').get(1).click();
+    $('#signin-username').sendKeys(username);
+    $('#signin-password').sendKeys(password);
+    element(by.partialButtonText('Sign in')).click();
+    browser.sleep(4000);
+
+    // Navigate to image repository
+    browser.get(`${appHost}/repository/devtable/simple`).then(() => done());
+  });
+
+  afterAll(() => {
+    browser.waitForAngularEnabled(true);
+  });
+
+  describe("information tab", () => {
+
+    beforeAll((done) => {
+      repoTabs.selectTabByTitle('Information').then(() => done());
+    });
+
+    it("displays repository description", () => {
+      expect(element(by.cssContainingText('h4', 'Description')).isDisplayed()).toBe(true);
+    });
+  });
+
+  describe("tags tab", () => {
+
+    beforeAll((done) => {
+      repoTabs.selectTabByTitle('Tags').then(() => done());
+    });
+
+    it("displays repository description", () => {
+      expect(element(by.cssContainingText('h4', 'Description')).isDisplayed()).toBe(true);
+    });
+  });
+});