Added e2e test to travis.yml

Closes #203.

.travis.yml

@@ -31,6 +31,7 @@ before_script:
 script:
 - ng lint
 - if [[ "$TRAVIS_OS_NAME" = "linux" ]]; then karma start karma.conf.js --single-run; fi
+- ng e2e
 before_deploy:
 - if [ ! -z "$TRAVIS_TAG" ]; then npm run build-electron; fi
 deploy:

e2e/app.e2e-spec.ts

@@ -7,8 +7,8 @@ describe('altair App', () => {
     page = new AltairPage();
   });
 
-  it('should display message saying app works', () => {
+  it('should have at lease one window', () => {
     page.navigateTo();
-    expect(page.getParagraphText()).toEqual('app works!');
+    expect(page.getWindows().isDisplayed()).toBe(true);
   });
 });

e2e/app.po.ts

@@ -1,11 +1,22 @@
 import { browser, element, by } from 'protractor';
 
 export class AltairPage {
+  constructor() {
+    browser.waitForAngularEnabled(false);
+  }
   navigateTo() {
     return browser.get('/');
   }
 
   getParagraphText() {
     return element(by.css('app-root h1')).getText();
   }
+
+  getWindows() {
+    return element(by.css('app-window'));
+  }
+
+  title() {
+    return browser.getTitle();
+  }
 }