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index5.html
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index5.html
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<!DOCTYPE html>
<html>
<head>
<title>example</title>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width">
<script type='text/javascript' src="./dist/React.js"></script>
<!-- <script type='text/javascript' src="./react.js"></script>
<script type='text/javascript' src="./react-dom.js"></script>-->
<script type='text/javascript' src="./lib/ReactTestUtils.js"></script>
<script type='text/javascript' src="./lib/babel.js"></script>
</head>
<body>
<div id='root' class="root">
</div>
<script type='text/babel'>
var container = document.getElementById('root');
var div = container;
if (!window.ReactDOM) {
window.ReactDOM = React;
}
var expect = function(a) {
return {
toBe: function(b) {
console.log(a, 'vs', b, a === b);
},
toEqual(b) {
console.log(a, 'vs', b, a + '' === b + '');
},
toThrow(){
try{
a()
}catch(e){
console.log(e,"catch")
}
}
};
};
var log = {
push(a){
console.log(a)
}
}
class DifferentParent extends React.PureComponent {
box = React.createRef();
componentDidMount() {
console.log("属性操作应该与插入操作提前到所有effects之前")
expect( this.box.current.parentElement.offsetHeight).toBe(400);
}
render() {
return <div ref={this.box}>box</div>;
}
}
ReactDOM.render(<div style={{height: 400}}><DifferentParent /></div>, container )
</script>
</html>