在Ionic3中模拟NavParams会返回类型typeOf NavParams中缺少的属性数据

class MockNavParams {
  private data: any;

  constructor(data: any) {
    this.data = data;
  }

  get(key: string): any {
    return this.data[key];
  }
}

// 在测试中使用模拟的NavParams
describe('YourPage', () => {
  let component: YourPage;
  let fixture: ComponentFixture<YourPage>;

  beforeEach(async(() => {
    TestBed.configureTestingModule({
      declarations: [YourPage],
      providers: [
        { provide: NavParams, useValue: new MockNavParams({ yourData: 'example' }) }
      ]
    }).compileComponents();
  }));

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

  it('should have the correct data from NavParams', () => {
    expect(component.yourData).toEqual('example');
  });
});