猜期望行为不清楚

Question

我有一个预期会失败的测试用例。

expect.fail('Not Found');

Tes失败，但错误消息在本地和Heroku服务器上错误地填充

在本地

{ AssertionError: expect.fail()
    at Object.<anonymous> ()
    at next (native)
    at fulfilled (58)
  message: 'expect.fail()',
  showDiff: false,
  **actual: 'Not Found',**
  expected: undefined,
  operator: undefined }

在Heroku上

{ AssertionError: Not Found
  **message: 'Not Found',**
  showDiff: false,
  actual: undefined,
  expected: undefined,
  operator: undefined }

当我断言时

expect（err.message）.to.eql（'Not Found'）;

在本地传递但在服务器上失败！知道这里可能有什么问题

Answer 1

尝试以下操作：expect.fail(err.message, 'Not Found', 'It Throws a failure.')