Question

Jest期望预期的Cell属性值为[Function anonymous]。

正确的语法是什么？

() => {}似乎是[Function Cell]，因此测试失败。

const expected =
      [{ Cell: () => {}, Header: '', accessor: () => {}, disableSortBy: true, id: 18, width: 50 }];

expect(result).toBe(expected);

控制台：

 $ jest test

----
    - Expected  - 1
    + Received  + 1

    @@ -1,8 +1,8 @@
      Array [
        Object {
    -     "Cell": [Function Cell],
    +     "Cell": [Function anonymous],
          "Header": "",
          "accessor": [Function accessor],
          "disableSortBy": true,
          "id": 18,
          "width": 50,

Answer 1

您需要告诉它期望数组，然后期望对象。每个对象都需要指定其类型或值

尝试这样的事情

const expected = expect.arrayContaining([
    expect.objectContaining({
      Cell: expect.any(Function),
      Header: expect.any(String),
      accessor: expect.any(Function),
      disableSortBy: expect.any(Boolean),
      /*...........so..on............*/
    })
  ]);

expect(result).toEqual(expected);

开玩笑-期望中的[匿名函数]

1 个答案: