138928: added pdf-viewer-enable tests

Author: bram-maegerman

src/app/pdf-viewer/pdf-viewer-enable/pdf-viewer-enable.component.spec.ts

@@ -0,0 +1,94 @@
+import { NO_ERRORS_SCHEMA } from '@angular/core';
+import {
+  ComponentFixture,
+  TestBed,
+  waitForAsync,
+} from '@angular/core/testing';
+import { By } from '@angular/platform-browser';
+import { DSpaceObject } from '@dspace/core/shared/dspace-object.model';
+import { TranslateModule } from '@ngx-translate/core';
+import { of } from 'rxjs';
+
+import { PdfViewerService } from '../pdf-viewer-service/pdf-viewer-service';
+import { PdfViewerEnableComponent } from './pdf-viewer-enable.component';
+
+describe('PdfViewerEnableComponent', () => {
+  let comp: PdfViewerEnableComponent;
+  let fixture: ComponentFixture<PdfViewerEnableComponent>;
+
+  let pdfViewerService: PdfViewerService;
+
+  const dso = new DSpaceObject();
+
+  beforeEach(waitForAsync(() => {
+    pdfViewerService = jasmine.createSpyObj('pdfViewerService', {
+      isViewerEnabled$: of(false),
+      viewerAllowedForBitstreamFormat$: of(true),
+    });
+
+    TestBed.configureTestingModule({
+      imports: [TranslateModule.forRoot()],
+      providers: [
+        { provide: PdfViewerService, useValue: pdfViewerService },
+      ],
+      schemas: [NO_ERRORS_SCHEMA],
+    }).compileComponents();
+  }));
+
+  beforeEach(() => {
+    fixture = TestBed.createComponent(PdfViewerEnableComponent);
+    comp = fixture.componentInstance;
+    comp.dso = dso;
+    fixture.detectChanges();
+  });
+
+
+  describe('onInit', () => {
+    it('should init the comp', () => {
+      expect(comp).toBeTruthy();
+    });
+    it('should initialise observable that check whether the PDF viewer is enabled', (done) => {
+      comp.isEnabled$.subscribe((value) => {
+        expect(value).toBeFalse();
+        done();
+      });
+    });
+    it('should initialise observable that check whether PDF viewer configuration is allowed', (done) => {
+      comp.isViewerConfigAllowed$.subscribe((value) => {
+        expect(value).toBeTrue();
+        done();
+      });
+    });
+  });
+  describe('update', () => {
+    it('should emit the provided boolean as a string value', () => {
+      spyOn(comp.onChange, 'emit');
+
+      comp.update(true);
+      expect(comp.onChange.emit).toHaveBeenCalledWith('true');
+
+      comp.update(false);
+      expect(comp.onChange.emit).toHaveBeenCalledWith('false');
+    });
+  });
+  describe('form', () => {
+    it('should display the ui-switch and text span when configuration is allowed', () => {
+      const uiSwitch = fixture.debugElement.queryAll(By.css('ui-switch'));
+      const span = fixture.debugElement.queryAll(By.css('span'));
+
+      expect(uiSwitch.length).toEqual(1);
+      expect(span.length).toEqual(1);
+    });
+    it('should not display the ui-switch and text span when configuration is not allowed', () => {
+      (pdfViewerService.viewerAllowedForBitstreamFormat$ as jasmine.Spy).and.returnValue(of(false));
+      fixture.detectChanges();
+
+      const uiSwitch = fixture.debugElement.queryAll(By.css('ui-switch'));
+      const span = fixture.debugElement.queryAll(By.css('span'));
+
+      expect(uiSwitch.length).toEqual(1);
+      expect(span.length).toEqual(1);
+    });
+  });
+});
+