javascript - 我可以在 Jest `expect.stringContaining()` block 中使用 `.toHaveBeenCalledWith()` 吗？

Question

是否可以使用expect.stringContaining()在 Jest 里面 .toHaveBeenCalledWith()堵塞？

我目前正在使用:

expect(createChatRoomMock).toHaveBeenCalledWith({
  creatorId: expect.stringContaining("user_"),
  chatRoomUuid: expect.stringContaining("chatRoom_"),
});

但这失败了:

    - Expected
    + Received


    Object {
  -   "chatRoomUuid": StringContaining "chatRoom_",
  -   "creatorId": StringContaining "user_",
  +   "chatRoomUuid": "chatRoom_sZ9nj4hC46e4bGz4PjYzpC",
  +   "creatorId": "user_nCQsasvYirUwwoEr3j8HsC",
    },

这很奇怪，正如您从错误中看到的那样，收到的字符串与预期的匹配

我也试过:

expect(createChatRoomMock).toHaveBeenCalledWith({
  creatorId: expect.stringMatching(/user_.*/),
  chatRoomUuid: expect.stringMatching(/chatRoom_.*/),
});

与上面显示的结果相同。

如何使用 expect.stringContaining()在 Jest 里面 .toHaveBeenCalledWith()堵塞？

Answer 1

这是 bug in jest .如果测试中还有其他问题，Jest will show these as failures, even though they would pass ， 例如:

  it.only("Test", () => {
    var createChatRoomMock = jest.fn();

    createChatRoomMock({
        "chatRoomUuid": "chatRoom_sZ9nj4hC46e4bGz4PjYzpC",
        "creatorId": "user_nCQsasvYirUwwoEr3j8HsC",
        "somethingElse": "bad"
    });

    expect(createChatRoomMock).toHaveBeenCalledWith({
      creatorId: expect.stringContaining("user_"),
      chatRoomUuid: expect.stringContaining("chatRoom_"),
      somethingElse: expect.stringContaining("good")
    });
  });

将(不准确地)显示另一个 .toHaveBeenCalledWith()失败了:

    - Expected
    + Received

      Object {
    -   "chatRoomUuid": StringContaining "chatRoom_",
    -   "creatorId": StringContaining "user_",
    -   "somethingElse": StringContaining "good",
    +   "chatRoomUuid": "chatRoom_sZ9nj4hC46e4bGz4PjYzpC",
    +   "creatorId": "user_nCQsasvYirUwwoEr3j8HsC",
    +   "somethingElse": "bad",
      },