茉莉花：在嵌套功能中使用间谍（对于AngularFirestore）

发布于 2025-02-05 04:28:44 字数 678 浏览 4 评论 0原文

我像这样嘲笑AngularFirestore：

beforeEach(() => {
  TestBed.configureTestingModule({
    {
      providers: [
        {
          provide: AngularFirestore,
          useValue: {
            collection: () => ({
              doc: () => ({
                set: () => new Promise((resolve) => resolve(void 0))})
              })
            }
          }
        }
      ]
    }
  })
})

collection（）返回包含doc属性的对象。 Collection（）。doc（）返回一个函数，包含set属性。 collection（）。doc（）。set（）返回void Promise。

如何使用spyon在调用set的调用中？

原文

I am mocking AngularFirestore like this:

beforeEach(() => {
  TestBed.configureTestingModule({
    {
      providers: [
        {
          provide: AngularFirestore,
          useValue: {
            collection: () => ({
              doc: () => ({
                set: () => new Promise((resolve) => resolve(void 0))})
              })
            }
          }
        }
      ]
    }
  })
})

collection() returns an object containing a doc property. collection().doc() returns a function, containing a set property. collection().doc().set() returns a void Promise.

How do I use spyOn to spy on calls to set?

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热鲨 2025-02-12 04:28:44

spyon让您间谍在一个对象拥有的一个属性上。您必须：

间谍目标
茉莉间谍对象的
建立基于＃1嵌入＃1的

，例如这样

let firestoreSpy: jasmine.Spy;
beforeEach(() => {
  const firestoreGet = {
    set: () => new Promise((resolve) => resolve(void 0))
  };
  firestoreSpy = spyOn(firestoreGet, 'set');
  TestBed.configureTestingModule({
    {
      providers: [
        {
          provide: AngularFirestore,
          useValue: {
            collection: () => ({
              doc: () => firestoreGet
            }
          }
        }
      ]
    }
  })
})
it('mister it', () => expect(firestoreSpy.[what have you]).[to be whatever]);

spyOn lets you spy on one property owned by one object. You have to:

Build the spy target by itself
Build the Jasmine spy object based on #1
Embed #1 into the mocked Firestore

Like this:

let firestoreSpy: jasmine.Spy;
beforeEach(() => {
  const firestoreGet = {
    set: () => new Promise((resolve) => resolve(void 0))
  };
  firestoreSpy = spyOn(firestoreGet, 'set');
  TestBed.configureTestingModule({
    {
      providers: [
        {
          provide: AngularFirestore,
          useValue: {
            collection: () => ({
              doc: () => firestoreGet
            }
          }
        }
      ]
    }
  })
})
it('mister it', () => expect(firestoreSpy.[what have you]).[to be whatever]);

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