一、模拟组件
1.用到的工具
(1)browerify
(2)jasmine-react-helpers
(3)rewireify（依赖注入）
(4)命令：browserify - t reactify -t rewireify test1.jsx > app.js
2.代码
(1)test1.jsx
var React = require("react/addons");
var TestUtils = React.addons.TestUtils;
var jasmineReact = require("jasmine-react-helpers");
var Survey = require("./Survey.jsx");
var mockCheckboxWithLabel = React.createClass({
render: function(){
return <p>替换的节点</p>
}
})
describe("test Survey component", function () {
it("mock CheckboxWithLabel component", function () {
Survey.__set__("CheckboxWithLabel", mockCheckboxWithLabel);
var survey = TestUtils.renderIntoDocument(<Survey></Survey>);
expect(React.findDOMNode(survey).textContent).toContain("替换的");
})
})
(2)app.jsx
var Survey = require('./Survey.jsx');
var React = require('react/addons');
React.render(<Survey></Survey>, document.body);
(3)Survey.jsx
var React = require('react/addons');
var CheckboxWithLabel = require('./CheckboxWithLabel.jsx');
var Survey = React.createClass({
getInitialState: function () {
return {
status: [false, false],
items: [{
text: "你喜欢吃苹果吗",
on: "喜欢",
off: "不喜欢"
}, {
text: "你喜欢吃香蕉吗",
on: "喜欢",
off: "不喜欢"
}
]
}
},
onChange: function(i) {
var status = this.state.status.concat([]);
status[i] = !status[i];
this.setState({
status: status
});
},
randomNumber: function () {
return Math.random();
},
render: function() {
var labels = [];
var that = this;
this.state.items.map(function (item, i) {
labels.push(<CheckboxWithLabel checked={that.state.status[i]} index={i} text={item.text} on={item.on} off={item.off} onChange={that.onChange}></CheckboxWithLabel>)
})
return (
<div>
{this.randomNumber()}
<br/>
{labels}
</div>
);
}
});
module.exports = Survey;
(4)CheckboxWithLabel.jsx
var React = require('react/addons');
var CheckboxWithLabel = React.createClass({
onChange: function() {
this.props.onChange(this.props.index);
},
render: function() {
return (
<label>
{this.props.text}
<input type = "checkbox" checked={this.props.checked} onChange={this.onChange}/>
{this.props.checked ? this.props.on : this.props.off}
</label>);
}
});
module.exports = CheckboxWithLabel;
(5)index.html
<!DOCTYPE html>
<html lang="zh-cn">
<head>
<meta charset="UTF-8">
<title>测试</title>
</head>
<body>
<link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/jasmine/2.3.4/jasmine.min.css">
<script src="https://cdnjs.cloudflare.com/ajax/libs/jasmine/2.3.4/jasmine.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/jasmine/2.3.4/jasmine-html.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/jasmine/2.3.4/boot.min.js"></script>
<script src="./app.js"></script>
</body>
</html>
3.运行结果
二、模拟函数
1.模拟函数通常用来消除函数的随机性，故在Survey.jsx中添加randomNumber函数，然后在测试中替换成返回固定值，若测试结果为每次都返回我们设定的值，则表示替换函数成功
2.代码
var React = require("react/addons");
var TestUtils = React.addons.TestUtils;
var jasmineReact = require("jasmine-react-helpers");
var Survey = require("./Survey.jsx");
describe("test Survey component", function () {
it("mock CheckboxWithLabel component", function () {
jasmineReact.spyOnClass(Survey, "randomNumber").and.returnValue(168);
var survey = TestUtils.renderIntoDocument(<Survey></Survey>);
expect(React.findDOMNode(survey).textContent).toContain("168");
})
})
三、模拟事件
1.
var React = require("react/addons");
var TestUtils = React.addons.TestUtils;
var jasmineReact = require("jasmine-react-helpers");
var Survey = require("./Survey.jsx");
describe("test Survey component", function () {
it("mock CheckboxWithLabel component", function () {
var survey = TestUtils.renderIntoDocument(<Survey></Survey>);
var target = TestUtils.scryRenderedDOMComponentsWithTag(survey, "input");
TestUtils.Simulate.change(target[0]);
TestUtils.Simulate.change(target[1]);
expect(React.findDOMNode(survey).textContent).toContain("不");
})
})