Jasmine - 测试一个函数作为参数的方法

Question

我正在尝试测试一个以对象和函数作为参数的方法，期望它已通过其对象和函数被调用，但即使我传递了一个函数，它 returns一个错误。

Expected spy openContactEdit to have been called with [ Object({ ... }),
  Function ] but actual calls were [ Object({ ... }), Function ].

我的代码是这样的：

接触-edit.test.ts

class ModalControllerMock {
  static create(page: any, data?: any) {
    return new ModalMock;
  }
}

class ModalServiceMock {
  openContactEdit(contact: any, onDismiss: (data) => any): any {
    let modal = ModalControllerMock.create('EditContactPage', {
      contact: contact
    })

    modal.present();

    let data: any;

    onDismiss(data);
  }
}

it('should open edit contact page', () => {
  const contact = {
    "username": "callain0",
    "name": "Cordelia Allain"
  }
  spyOn(modalService, 'openContactEdit').and.callThrough();

  comp.editContact(contact)

  expect(modalService.openContactEdit).toHaveBeenCalledWith(contact, () => { });
});

模态-service.ts

openContactEdit(contact: any, onDismiss: (data) => any) {
  let modal = this.modalCtrl.create('EditContactPage', {
    contact: contact
  })

  modal.onDidDismiss(data => {
    onDismiss(data);
  })

  modal.present();
}

Answer 1

把你的() => {}换成jasmine.any(Function)，不关心具体功能的你就设置好了。参见。

Jasmine - 测试一个函数作为参数的方法

Jasmine - Test a method which has a function as Parameter

karma-jasmine

ionic2

angular