improve test coverage core translate service

ng2-components/ng2-alfresco-core/src/services/AlfrescoTranslation.service.spec.ts

@@ -0,0 +1,64 @@
+/*!
+ * @license
+ * Copyright 2016 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 { AlfrescoTranslationService } from '../services/AlfrescoTranslation.service';
+import { Injector } from '@angular/core';
+import { ResponseOptions, Response, XHRBackend, HttpModule } from '@angular/http';
+import { MockBackend, MockConnection } from '@angular/http/testing';
+import {
+    TranslateModule
+} from 'ng2-translate/ng2-translate';
+import {getTestBed, TestBed} from '@angular/core/testing';
+
+const mockBackendResponse = (connection: MockConnection, response: string) => {
+    connection.mockRespond(new Response(new ResponseOptions({body: response})));
+};
+
+describe('AlfrescoTranslationService', () => {
+    let injector: Injector;
+    let backend: MockBackend;
+    let alfrescoTranslationService: AlfrescoTranslationService;
+    let connection: MockConnection; // this will be set when a new connection is emitted from the backend.
+
+    beforeEach(() => {
+        TestBed.configureTestingModule({
+            imports: [HttpModule, TranslateModule.forRoot()],
+            providers: [
+                AlfrescoTranslationService,
+                {provide: XHRBackend, useClass: MockBackend}
+            ]
+        });
+        injector = getTestBed();
+        backend = injector.get(XHRBackend);
+        alfrescoTranslationService = injector.get(AlfrescoTranslationService);
+        backend.connections.subscribe((c: MockConnection) => connection = c);
+    });
+
+    it('is defined', () => {
+        expect(AlfrescoTranslationService).toBeDefined();
+        expect(alfrescoTranslationService instanceof AlfrescoTranslationService).toBeTruthy();
+    });
+
+    it('should be able to get translations', () => {
+        alfrescoTranslationService.use('en');
+        alfrescoTranslationService.get('TEST').subscribe((res: string) => {
+            expect(res).toEqual('This is a test');
+        });
+
+        mockBackendResponse(connection, '{"TEST": "This is a test", "TEST2": "This is another test"}');
+    });
+});

ng2-components/ng2-alfresco-core/src/services/AlfrescoTranslation.service.ts

@@ -22,9 +22,9 @@ import { AlfrescoTranslationLoader } from './AlfrescoTranslationLoader.service';
 
 @Injectable()
 export class AlfrescoTranslationService {
-    userLang: string = 'en' ;
+    userLang: string = 'en';
 
-    constructor(private translate: TranslateService) {
+    constructor(public translate: TranslateService) {
         this.userLang = translate.getBrowserLang() || 'en';
         translate.setDefaultLang(this.userLang);
     }

ng2-components/ng2-alfresco-core/src/services/AlfrescoTranslationLoader.service.spec.ts

@@ -0,0 +1,57 @@
+/*!
+ * @license
+ * Copyright 2016 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 { TranslateLoader } from 'ng2-translate/ng2-translate';
+import { AlfrescoTranslationLoader } from '../services/AlfrescoTranslationLoader.service';
+import { AlfrescoTranslationService } from '../services/AlfrescoTranslation.service';
+import { Injector } from '@angular/core';
+import { XHRBackend, HttpModule } from '@angular/http';
+import { MockBackend, MockConnection } from '@angular/http/testing';
+import {
+    TranslateModule
+} from 'ng2-translate/ng2-translate';
+import {getTestBed, TestBed} from '@angular/core/testing';
+
+describe('TranslateLoader', () => {
+    let injector: Injector;
+    let backend: MockBackend;
+    let alfrescoTranslationService: AlfrescoTranslationService;
+    let connection: MockConnection; // this will be set when a new connection is emitted from the backend.
+
+    beforeEach(() => {
+        TestBed.configureTestingModule({
+            imports: [HttpModule, TranslateModule.forRoot({
+                provide: TranslateLoader,
+                useClass: AlfrescoTranslationLoader
+            })],
+            providers: [
+                AlfrescoTranslationService,
+                {provide: XHRBackend, useClass: MockBackend}
+            ]
+        });
+        injector = getTestBed();
+        backend = injector.get(XHRBackend);
+        alfrescoTranslationService = injector.get(AlfrescoTranslationService);
+        backend.connections.subscribe((c: MockConnection) => connection = c);
+    });
+
+    it('should be able to provide any TranslateLoader', () => {
+        expect(alfrescoTranslationService).toBeDefined();
+        expect(alfrescoTranslationService.translate.currentLoader).toBeDefined();
+        expect(alfrescoTranslationService.translate.currentLoader instanceof AlfrescoTranslationLoader).toBeTruthy();
+    });
+});