Question

我是jest的新手，所以不确定是否是我的错。这是我的测试用例

    it('should throw error if wrong email or phone number is provided', async () => {
      await expect(userService.verifyCredentials('invalidemail@invaliddomain.com', 'sayantan94'))
        .rejects
        .toEqual(new UnauthorizedException('Invalid email or phone number'));
    })

但是，即使抛出相同的异常，此操作也会失败。这是输出

FAIL  src/modules/user/user.service.spec.ts (5.156s)
● UserService › verifyCredentials › should throw error if wrong email or phone number is provided

expect(received).toStrictEqual(expected)

Expected value to equal:
  [Error: [object Object]]
Received:
  [Error: [object Object]]

Difference:

Compared values have no visual difference.

  88 |       await expect(userService.verifyCredentials('invalidemail@invaliddomain.com', 'sayantan94'))
  89 |         .rejects
> 90 |         .toEqual(new UnauthorizedException('Invalid email or phone number'));
     |          ^
  91 |     })
  92 |   })
  93 |

我该如何检查？

Answer 1

尝试使用toEqual代替toThrow

it('should throw error if wrong email or phone number is provided', async () =>  {        
    await expect(userService.verifyCredentials('invalidemail@invaliddomain.com', 'sayantan94'))
    .rejects
    .toThrow('Invalid email or phone number');
});

参考：https://jestjs.io/docs/en/expect.html#rejects

开玩笑toEqual不适用于异常匹配

1 个答案: