add protractor utils class (#4531)

lib/testing/src/lib/core/protractor.util.ts

@@ -0,0 +1,32 @@
+/*!
+ * @license
+ * Copyright 2019 Alfresco Software, Ltd.
+ *
+ * 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 { ElementFinder, browser, by } from 'protractor';
+
+/**
+ * Tagged template to convert a sting to an `ElementFinder`.
+ * @example ```const item = byCss`.adf-breadcrumb-item-current`;```
+ * @example ```const item = byCss`${variable}`;```
+ * @returns Instance of `ElementFinder` type.
+ */
+export function byCss(
+    literals: TemplateStringsArray,
+    ...placeholders: string[]
+): ElementFinder {
+    const selector = literals[0] || placeholders[0];
+    return browser.element(by.css(selector));
+}

lib/testing/src/lib/core/public-api.ts

@@ -20,3 +20,4 @@ export * from './actions/public-api';
 export * from './pages/public-api';
 export * from './models/public-api';
 export * from './string.util';
+export * from './protractor.util';