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所以我正在使用 MochaJS、SinonJS、Chai、assert 和 rewire 对我的应用程序进行单元测试。我收到以下错误。我正在尝试测试作为 POST 方法中的参数传递的 POST 方法的处理程序。我不认为我正确地存根和模拟。

 TypeError: roomsRepo.addOneRoom is not a function
  at D:\Work\RestAPI\controllers\roomsController.js:10:29
  at async Context.<anonymous> (test\testRoomController.js:106:24)

我正在测试的代码是这个：

function createRoomHandler (db) {
return  async (request, reply) => {
    try {
        let newRoom = await request.body;
        await roomsRepo.addOneRoom(db, newRoom);
        return newRoom
    } catch (error) { throw error }
};

}

在 post 方法中作为参数传递的函数：

    fastify.post('/rooms', roomOpts.addRoomOpts, createRoomHandler(db));

我的单元测试代码如下：

describe("POST /rooms request handler unit tests", () => {
const createRoomHandler = rewired.__get__("createRoomHandler")
const sandbox = sinon.createSandbox();

it("should delete a room and return its number", async () => {
    const req = {
        res: {
            "statusCode": 200,
            "headers": {
                "content-type": "application/json"
            }
        },
        body: {
            "status": "success",
            data: {
                "floor": 1,
                "sqm": 20,
                "capacity": 5,
                "features": {
                    "videoProjector": 1,
                    "stage": 2
                }
            }
        }
    }
    const res = {
        "data": {
            "floor": 1,
            "sqm": 20,
            "capacity": 5,
            "features": {
                "videoProjector": 1,
                "stage": 2
            }
        }

    }

    const insertOne = sandbox.stub().returns()

    const db = {
        rooms: { insertOne }
    }

    const mockedAddOneRoom = sandbox.stub().resolves()

    const roomsRepo = {mockedAddOneRoom}

    const stubbedAddOneRoom = rewired.__set__({ roomsRepo: roomsRepo })

    const handler = createRoomHandler(db);

    const result = await handler(req.body.data, res);

    sandbox.assert.calledOnceWithExactly(mockedAddOneRoom, db, req.body.data)

    const order = [
        mockedAddOneRoom
    ]

    sandbox.assert.callOrder(...order)

    expect(result).be.equal(res.data)
    stubbedAddOneRoom()
})

})

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