TypeError:当我尝试使用JEST测试方法时，dispatch不是函数 [英] TypeError: dispatch is not a function when I try to test a method using JEST

问题描述

我有一个方法，该方法接收一些值作为参数，然后调度一个动作.问题是，当我使组件变浅以测试此方法时，出现错误消息，指出dispatch不是函数.

I have a method that receives some values as a parameter and then dispatches an action. The problem is that when I shallow my component to test this method, I have an error saying that dispatch is not a function.

测试:

test('it changes the state when submit is clicked', () => {
    const wrapper = shallow(<WizardForm store={store}/>);
    const values = {
    entrySign: 'archivoSign',
    signCertificateFile: 'file',
    signCertificate: 'text',
    entryAuth: 'notArchivoAuth',
    authCertificateFile: 'file',
    authCertificate: 'text'
}
const form = wrapper.instance();
//in this method I get the error
form.submit(values)

方法:

submit(values) {
  var authCertificate = this.checkAuth(values);
  var signCertificate = this.checkSign(values);
  let req = {
    authCertificate: authCertificate,
    signCertificate: signCertificate,
    userId: this.state.userId
  }
  const { dispatch } = this.props
  dispatch({type: 'CERTIFICATES_FETCH_REQUESTED', payload: {req}})
}

有人可以帮助我吗?我不知道我在做什么错. 预先感谢！

Can anyone help me? I do not know what I am doing wrong. Thanks in advance!

推荐答案

好的，现在我进行此测试:

Okay so now I have this test:

it('works', () => {
const values = {
  username: 'marc',
  name: 'marc',
  email: '[e-mail]',
  entrySign: 'archivoSign',
  signCertificateFile: 'file',
  signCertificate: 'text',
  entryAuth: 'notArchivoAuth',
  authCertificateFile: 'file',
  authCertificate: 'text'
} 
const mapDispatchToProps = (dispatch) => ({
  submit
});
const mockedStore = createMockStore();
const WizardFormWrapper = connect(reduxFormReducer, mapDispatchToProps)(WizardForm);
const wrapper = shallowWithStore(<WizardFormWrapper />, mockedStore);
   wrapper.props().submit();

});        
})

我现在遇到的问题是:ReferenceError:提交未定义 有什么建议@RIYAJ KHAN吗?

The problem now I get is: ReferenceError: submit is not defined Any suggestions @RIYAJ KHAN ?

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