feat(demo): add unit tests for using-ng-pipe component

Author: shanmukhateja

demo/src/app/advanced/using-ng-pipe.component.spec.ts

@@ -0,0 +1,89 @@
+/* tslint:disable:no-unused-variable */
+
+import { RouterTestingModule } from '@angular/router/testing';
+import { HttpClientModule } from '@angular/common/http';
+import { NO_ERRORS_SCHEMA, SecurityContext } from '@angular/core';
+import { ComponentFixture, TestBed, waitForAsync } from '@angular/core/testing';
+import { DataTableDirective, DataTablesModule } from 'angular-datatables';
+import { MarkdownModule } from 'ngx-markdown';
+import { BaseDemoComponent } from '../base-demo/base-demo.component';
+import { AppRoutingModule } from '../app.routing';
+import { FormsModule } from '@angular/forms';
+import { UsingNgPipeComponent } from './using-ng-pipe.component';
+import { UpperCasePipe } from '@angular/common';
+import { By } from '@angular/platform-browser';
+import { Person } from 'app/person';
+
+
+let fixture: ComponentFixture<UsingNgPipeComponent>, component: UsingNgPipeComponent = null;
+
+describe('UsingNgPipeComponent', () => {
+  beforeEach(() => {
+    fixture = TestBed.configureTestingModule({
+      declarations: [
+        BaseDemoComponent,
+        UsingNgPipeComponent,
+        DataTableDirective
+      ],
+      imports: [
+        AppRoutingModule,
+        RouterTestingModule,
+        DataTablesModule.forRoot(),
+        HttpClientModule,
+        MarkdownModule.forRoot(
+          {
+            sanitize: SecurityContext.NONE
+          }
+        ),
+        FormsModule
+      ],
+      schemas: [NO_ERRORS_SCHEMA],
+      providers: [
+        UpperCasePipe
+      ]
+    }).createComponent(UsingNgPipeComponent);
+
+    component = fixture.componentInstance;
+
+    fixture.detectChanges(); // initial binding
+  });
+
+  it('should create the app', waitForAsync(() => {
+    const app = fixture.debugElement.componentInstance;
+    expect(app).toBeTruthy();
+  }));
+
+  it('should have title "Using Angular Pipe"', waitForAsync(() => {
+    const app = fixture.debugElement.componentInstance as UsingNgPipeComponent;
+    expect(app.pageTitle).toBe('Using Angular Pipe');
+  }));
+
+  it('should have firstName, lastName columns have text in uppercase', async () => {
+    const app = fixture.debugElement.componentInstance as UsingNgPipeComponent;
+    await fixture.whenStable();
+
+    const query = fixture.debugElement.query(By.directive(DataTableDirective));
+    const dir = query.injector.get(DataTableDirective);
+    expect(dir).toBeTruthy();
+
+    const instance = await dir.dtInstance;
+
+    const rows = fixture.nativeElement.querySelectorAll('tbody tr');
+
+    const testsArray = [0, 3, 6];
+    const expectedArray = testsArray.map(_ => true);
+
+    expect(testsArray.map(index => {
+      const dataRow = rows[index];
+
+      const firstNameFromData = (instance.row(dataRow).data()  as Person).firstName;
+      const firstNameFromTable = $('td:nth-child(2)', dataRow).text();
+
+      const lastNameFromData = (instance.row(dataRow).data()  as Person).lastName;
+      const lastNameFromTable = $('td:nth-child(3)', dataRow).text();
+      return firstNameFromTable == firstNameFromData.toUpperCase() && lastNameFromTable == lastNameFromData.toUpperCase();
+    }))
+    .toEqual(expectedArray);
+  });
+
+});