如何解决sinonJS存根问题？

Question

所以我试图用SinonJS 存根请求。在每次测试之前，它应该使用已解决的虚假信息来模拟请求，但它似乎没有按预期工作。尝试使用 解决Promise.resolve，但它也无法按我的预期工作。

这是测试代码：

describe("Store | Users actions", () => {

  let commit = null;

  let page = 1;

  let itemsPerPage = 2;

  const users_response = {

    status: 200,

    data: [{

      "id": 1,

      "name": "Leanne Graham",

      "username": "Bret",

      "email": "[e-mail]"

    },

    {

      "id": 2,

      "name": "Ervin Howell",

      "username": "Antonette",

      "email": "[e-mail]"

    }]

  };

  beforeEach(() => {

    commit = sinon.spy();

    sinon

      .stub(api.users, "list").resolves();

  });

  afterEach(() => {

    api.users.list.restore();

  });

  it("should list users", () => {

    users.actions.list({ commit }, { page, itemsPerPage });

    expect(commit).to.have.been.calledWith("UNSET_ERROR");

    expect(commit).to.have.been.calledWith("GET_PAGINATED", users_response);

  });

});

这是我收到的错误：

  1) Store | Users actions

       should list users:

     AssertionError: expected spy to have been called with arguments GET_PAGINATED, {

  data: [{ email: "[e-mail]", id: 1, name: "Leanne Graham", username: "Bret" }, { email: "[e-mail]", id: 2, name: "Ervin Howell", username: "Antonette" }],

  status: 200

}

"UNSET_ERROR" "GET_PAGINATED"

{

  data: [{ email: "[e-mail]", id: 1, name: "Leanne Graham", username: "Bret" }, { email: "[e-mail]", id: 2, name: "Ervin Howell", username: "Antonette" }],

  status: 200

}

      at Context.<anonymous> (dist/js/webpack:/tests/unit/store/users.spec.js:184:1)

list({ commit }, { page, itemsPerPage, sort, search }) {

      commit("UNSET_ERROR");

      return api.users

        .list(page, itemsPerPage, sort, search)

        .then((users) => commit("GET_PAGINATED", users.data))

        .catch((error) => commit("SET_ERROR", error));

    }

我在这里做错了什么？任何帮助深表感谢。

Answer 1

这是因为你的第二个提交函数调用是在 Promise then 方法内部。您需要等待 users.actions.list()。例如：&nbsp; beforeEach(() => {&nbsp; &nbsp; commit = sinon.spy();&nbsp; &nbsp; // Note: add users_response here.&nbsp; &nbsp; sinon.stub(api.users, "list").resolves(users_response);&nbsp; });&nbsp; // Use async here.&nbsp; it("should list users", async () => {&nbsp; &nbsp; // Use await here.&nbsp; &nbsp; await users.actions.list({ commit }, { page, itemsPerPage });&nbsp; &nbsp; expect(commit).to.have.been.calledWith("UNSET_ERROR");&nbsp; &nbsp; // Note: expect with property data, because called with: users.data.&nbsp; &nbsp; expect(commit).to.have.been.calledWith("GET_PAGINATED", users_response.data);&nbsp; });