我正在使用摩卡，Chai，Karma，Sinon，Webpack for Unit测试。
我按照这个链接配置我的React-Redux Code的测试环境。
我可以成功地测试我的动作和reducer的JavaScript代码，但是当它涉及到测试我的组件时总是会发生一些错误。
import React from 'react';
import TestUtils from 'react/lib/ReactTestUtils'; //I like using the Test Utils,but you can just use the DOM API instead.
import chai from 'chai';
// import sinon from 'sinon';
import spies from 'chai-spies';
chai.use(spies);
let should = chai.should(),expect = chai.expect;
import { PhoneVerification } from '../PhoneVerification';
let fakeStore = {
'isFetching': false,'usernameSettings': {
'errors': {},'username': 'sahil','isEditable': false
},'emailSettings': {
'email': 'test@test.com','isEmailVerified': false,'passwordSettings': {
'errors': {},'password': 'showsomestarz','phoneSettings': {
'isEditable': false,'errors': {},'otp': null,'isOTPSent': false,'isOTPReSent': false,'isShowMissedCallNumber': false,'isShowMissedCallVerificationLink': false,'missedCallNumber': null,'timeLeftToVerify': null,'_verifiedNumber': null,'timers': [],'phone': '','isPhoneVerified': false
}
}
function setup () {
console.log(PhoneVerification);
// PhoneVerification.componentDidMount = chai.spy();
let output = TestUtils.renderIntoDocument(<PhoneVerification {...fakeStore}/>);
return {
output
}
}
describe('PhoneVerificationComponent',() => {
it('should render properly',(done) => {
const { output } = setup();
expect(PhoneVerification.prototype.componentDidMount).to.have.been.called;
done();
})
});
Failed TESTS: PhoneVerificationComponent ✖ should render properly Chrome 48.0.2564 (Mac OS X 10.11.3) Error: Invariant Violation: Element type is invalid: expected a string (for built-in components) or a class/function (for composite components) but got: undefined.
尝试从sinon间谍切换到chai-spies。
我应该如何单元测试我的React-Redux连接组件(智能组件)？
一个更漂亮的方式来执行此操作，是导出您的普通组件和包装在连接中的组件。命名导出将是组件，默认是包装组件：
export class Sample extends Component {
render() {
let { verification } = this.props;
return (
<h3>This is my awesome component.</h3>
);
}
}
const select = (state) => {
return {
verification: state.verification
}
}
export default connect(select)(Sample);
这样，您可以在应用程序中正常导入，但是在测试时可以使用导入{Sample}从“组件”导入您的命名导出。
