使用链接测试React路由器

Question

我正在寻找一个噩梦,找到一个测试React Router链接的好方法.它正在传递'渲染类别正确'但是零链接正在通过测试,我已经尝试了很多不同的东西,但仍然无处可去.

以下是我要测试的内容:

零件

import React from 'react';
import { Link } from 'react-router';

class Categories extends React.Component {

constructor(props, context){
    super(props);
    context.router
}

render() {
    return (
        <nav className="categories">
          <ul>
              <li><Link to="devices">Devices</Link></li>
              <li><Link to="cases">Cases</Link></li>
              <li><Link to="layouts">Layouts</Link></li>
              <li><Link to="designs">Designs</Link></li>
          </ul>
        </nav>
    );
  }
}

Categories.contextTypes = {
 router: React.PropTypes.func.isRequired
};

export default Categories;

StubRouterContext

import React from 'react';
import objectAssign from 'object-assign';

var stubRouterContext = (Component, props, stubs) => {
function RouterStub() { }

objectAssign(RouterStub, {
  makePath () {},
  makeHref () {},
  transitionTo () {},
  replaceWith () {},
  goBack () {},
  getCurrentPath () {},
  getCurrentRoutes () {},
  getCurrentPathname () {},
  getCurrentParams () {},
  getCurrentQuery () {},
  isActive () {},
  getRouteAtDepth() {},
  setRouteComponentAtDepth() {}
 }, stubs)

return React.createClass({
childContextTypes: {
    router: React.PropTypes.func,
    routeDepth: React.PropTypes.number
},

getChildContext () {
    console.log('blah');
  return {
    router: RouterStub,
    routeDepth: 0
  };
},

render () {
  return <Component {...props} />
}
});
};

export default stubRouterContext;

组件测试

var expect = require('chai').expect;

var React = require('react/addons');
var Categories = require('../app/src/js/components/Categories.React.js');
var stubRouterContext = require('../test-utils/stubRouterContext.js');
var TestUtils = React.addons.TestUtils;

describe('Categories', function() {
  var categoriesWithContext = stubRouterContext(Categories);

  it('renders Categories properly', function() {
  var categories = TestUtils.renderIntoDocument(<categoriesWithContext />, {});
});

it('renders 4 links', function() {
  var catLinks = TestUtils.scryRenderedDOMComponentsWithTag(categoriesWithContext, 'a');
  expect(catLinks).to.have.length(4);
});
});

Answer 1

我有完全相同的问题。在最新版本的react-router中，您不需要上下文来渲染链接元素，因此这不是问题。但是，如果您像我一样停留在 API 1.0 之前的版本，则 StubRouterContext 方法效果很好。

OP 和我发现我们的包装器呈现为空的唯一原因是使用了驼峰式组件名称。

var categoriesWithContext = stubRouterContext(Categories);变成var CategoriesWithContext = stubRouterContext(Categories);.

因此var categories = TestUtils.renderIntoDocument(<categoriesWithContext />,{});变成var categories = TestUtils.renderIntoDocument(<CategoriesWithContext />,{});.

这种方法的解释在这里 - https://gist.github.com/sebmarkbage/f1f4ba40816e7d7848ad。