javascript - Jest 的匹配器错误 : received value must be a function

Question

我在字体端工作，并测试我的库，我收到一个我预期的错误，但我无法做出断言。我有下一个代码:

it('If the username is not entered, I get an error', () => {
    try {
      new SDK('test', {
        password: 'aaaabbbbcccc',
        key: 'ddddeeefff',
      });
    } catch (error) {
      expect(error).toThrow(
        `Error: The 'username' property has not been entered`
      );
    }
  });

如您所见，对于我的库的身份验证，我需要:用户名、密码和 key 。这是我得到的错误:

谢谢!

Answer 1

我发现了我的问题。 “期望”必须捕获异常，然后使用适当的匹配器(没有 try/catch block )

it('If the username is not entered, I get an error', () => {
  expect(() => {
    new SDK('test', {
      password: 'aaaabbbbcccc',
      key: 'ddddeeefff',
    });
  }).toThrowError(`The 'username' property has not been entered`);
});