initial e2e integration (#329)

* e2e integration with ci

* update travis config

* try always build image

* build the app in production mode

* try to stop previous

* stop default postgresql service

* try upgrade selenium-webdriver

* disable Gecko for webdriver-manager

* use stable chrome and latest protractor

e2e/components/component.ts

@@ -0,0 +1,43 @@
+/*!
+ * @license
+ * Alfresco Example Content Application
+ *
+ * Copyright (C) 2005 - 2018 Alfresco Software Limited
+ *
+ * This file is part of the Alfresco Example Content Application.
+ * If the software was purchased under a paid Alfresco license, the terms of
+ * the paid license agreement will prevail.  Otherwise, the software is
+ * provided under the following open source license terms:
+ *
+ * The Alfresco Example Content Application is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * The Alfresco Example Content Application is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with Alfresco. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+import { ElementFinder, element, by, ExpectedConditions as EC, browser } from 'protractor';
+import { BROWSER_WAIT_TIMEOUT } from '../configs';
+
+export abstract class Component {
+    component: ElementFinder;
+
+    constructor(selector: string, ancestor?: ElementFinder) {
+        const locator = by.css(selector);
+
+        this.component = ancestor
+            ? ancestor.element(locator)
+            : element(locator);
+    }
+
+    wait() {
+        return browser.wait(EC.presenceOf(this.component), BROWSER_WAIT_TIMEOUT);
+    }
+}