[ADF-2561] View comments on previous versions (#3137)

* [ADF-2561] View comments on previous versions

add input property to enable/disable viewing version comments

* [ADF-2561] add more tests

lib/content-services/version-manager/version-manager.component.spec.ts

@@ -0,0 +1,111 @@
+/*!
+ * @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 { CUSTOM_ELEMENTS_SCHEMA } from '@angular/core';
+import { async, ComponentFixture, TestBed } from '@angular/core/testing';
+import { By } from '@angular/platform-browser';
+import { AlfrescoApiService } from '@alfresco/adf-core';
+import { MinimalNodeEntryEntity } from 'alfresco-js-api';
+import { VersionManagerComponent } from './version-manager.component';
+import { VersionListComponent } from './version-list.component';
+
+describe('VersionManagerComponent', () => {
+    let component: VersionManagerComponent;
+    let fixture: ComponentFixture<VersionManagerComponent>;
+    let spyOnListVersionHistory: jasmine.Spy;
+
+    const expectedComment = 'test-version-comment';
+    const  node: MinimalNodeEntryEntity = {
+        id: '1234',
+        name: 'TEST-NODE',
+        isFile: true
+    };
+    const versionEntry = {
+       entry: {
+           id: '1.0',
+           name: node.name,
+           versionComment: expectedComment
+       }
+    };
+
+    beforeEach(async(() => {
+        TestBed.configureTestingModule({
+            declarations: [
+                VersionManagerComponent, VersionListComponent
+            ],
+            schemas: [CUSTOM_ELEMENTS_SCHEMA]
+        }).compileComponents();
+    }));
+
+    beforeEach(() => {
+        fixture = TestBed.createComponent(VersionManagerComponent);
+        component = fixture.componentInstance;
+        component.node = node;
+
+        const alfrescoApiService = TestBed.get(AlfrescoApiService);
+        spyOnListVersionHistory = spyOn(alfrescoApiService.versionsApi, 'listVersionHistory').and
+            .callFake(() => Promise.resolve({ list: { entries: [ versionEntry ] }}));
+    });
+
+    it('should load the versions for a given node', () => {
+        fixture.detectChanges();
+        expect(spyOnListVersionHistory).toHaveBeenCalledWith(node.id);
+    });
+
+    it('should display comments for versions when not configured otherwise', async(() => {
+        fixture.detectChanges();
+        fixture.whenStable().then(() => {
+            fixture.detectChanges();
+            let versionCommentEl = fixture.debugElement.query(By.css('.adf-version-list-item-comment'));
+
+            expect(versionCommentEl).not.toBeNull();
+            expect(versionCommentEl.nativeElement.innerText).toBe(expectedComment);
+        });
+    }));
+
+    it('should not display comments for versions when configured not to show them', async(() => {
+        component.showComments = false;
+        fixture.detectChanges();
+
+        fixture.whenStable().then(() => {
+            fixture.detectChanges();
+            let versionCommentEl = fixture.debugElement.query(By.css('.adf-version-list-item-comment'));
+
+            expect(versionCommentEl).toBeNull();
+        });
+    }));
+
+    it('should emit success event upon successful upload of a new version', () => {
+        fixture.detectChanges();
+
+        const emittedData = { value: { entry: node }};
+        component.uploadSuccess.subscribe(event => {
+            expect(event).toBe(emittedData);
+        });
+        component.onUploadSuccess(emittedData);
+    });
+
+    it('should emit error event upon failure to upload a new version', () => {
+        fixture.detectChanges();
+
+        const errorEvent = new CustomEvent('error');
+        component.uploadError.subscribe(event => {
+            expect(event).toBe(errorEvent);
+        });
+        component.onUploadError(errorEvent);
+    });
+});