MockComponent does not include attributes and methods of extended class about ng-mocks HOT 6 CLOSED

import {Component, Input, ViewChild} from '@angular/core';
import {async, ComponentFixture, TestBed} from '@angular/core/testing';
import {MockComponent} from 'ng-mocks';
import {By} from '@angular/platform-browser';

export class BaseComponent {

  @Input()
  public baseCompInput: string;

  public baseCompAttribute: string;

  public baseCompMethod(): string {
    return 'base';
  }
}

@Component({
  selector: 'test-component',
  template: ''
})
export class ExtendedComponent extends BaseComponent {

  @Input()
  public extendedCompInput: string;

  public extendedCompAttribute: string;

  public extendedCompMethod(): string {
    return 'extended';
  }
}

@Component({
  selector: 'component-container',
  template: '<test-component extendedCompInput="test" baseCompInput="test"></test-component>'
})
export class ComponentContainer {

  @ViewChild(ExtendedComponent)
  private extendedComp: ExtendedComponent;

  public test(): void {
    this.extendedComp.extendedCompMethod();
  }

}

describe('mock extended component', () => {
  let component: ComponentContainer;
  let fixture: ComponentFixture<ComponentContainer>;
  let extendedComponent: ExtendedComponent;

  beforeEach(async(() => {
    TestBed.configureTestingModule({
      declarations: [
        ComponentContainer,
        MockComponent(ExtendedComponent),
      ],
    }).compileComponents();
  }));

  beforeEach(() => {
    fixture = TestBed.createComponent(ComponentContainer);
    component = fixture.componentInstance;
    fixture.detectChanges();

    extendedComponent = fixture.debugElement.query(By.directive(ExtendedComponent)).componentInstance;
  });

  it('should have the attribute and method of the extended class', () => {
    expect(extendedComponent.extendedCompInput).toBeDefined('input');
    expect(extendedComponent.extendedCompAttribute).toBeDefined('attribute');
    expect(extendedComponent.extendedCompMethod).toBeDefined('method');
  });

  it('should have the attribute and method of the base class', () => {
    expect(extendedComponent.baseCompInput).toBeDefined('input');
    expect(extendedComponent.baseCompAttribute).toBeDefined('attribute');
    expect(extendedComponent.baseCompMethod).toBeDefined('method');
  });

  describe('test', () => {
    beforeEach(() => {
      spyOn(extendedComponent, 'baseCompMethod');
      component.test();
    });

    it('should call baseCompMethod', () => {
      expect(extendedComponent.baseCompMethod).toHaveBeenCalled();
    });
  });
});