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ng2-mock-component

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ng2-mock-component


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ng2-mock-component

A very simple Angular 2 module for mocking components in unit tests.

npm install --save-dev ng2-mock-component

Usage

Just specify the selector of the component you wish to mock (along with whatever other metadata properties you like), and MockComponent will supply that component with an empty template (unless you provide a template string, in which case, it'll use that instead).

import { TestBed } from '@angular/core/testing';
import { By } from '@angular/platform-browser';
import { MyComponent } from './src/my.component';
import { MockComponent } from 'ng2-mock-component';

describe('MyComponent', () => {
  let fixture, element;

  beforeEach(() => {
    TestBed.configureTestingModule({
      declarations: [
        MyComponent,
        MockComponent({ selector: 'my-subcomponent' })
      ]
    });

    fixture = TestBed.createComponent(MyComponent);
    element = fixture.debugElement;
  });

  it('works', () => {
    fixture.detectChanges();
    expect(element.query(By.css('my-subcomponent'))).not.toBeNull();
  });
});

Author

Christian Nunciato (chris@nunciato.org)

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Last updated on 15 Aug 2019

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