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index6.html
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<!DOCTYPE html>
<html>
<head>
<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>
<pre>React 15 </pre>
<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)
}
}
var log = []
var BrokenRender = class extends React.Component {
constructor(props) {
super(props);
log.push('BrokenRender constructor');
}
render() {
log.push('BrokenRender render [!]');
throw new Error('Hello');
}
UNSAFE_componentWillMount() {
log.push('BrokenRender componentWillMount');
}
componentDidMount() {
log.push('BrokenRender componentDidMount');
}
UNSAFE_componentWillReceiveProps() {
log.push('BrokenRender componentWillReceiveProps');
}
UNSAFE_componentWillUpdate() {
log.push('BrokenRender componentWillUpdate');
}
componentDidUpdate() {
log.push('BrokenRender componentDidUpdate');
}
componentWillUnmount() {
log.push('BrokenRender componentWillUnmount');
}
};
var BrokenComponentWillMount = class extends React.Component {
constructor(props) {
super(props);
log.push('BrokenComponentWillMount constructor');
}
render() {
log.push('BrokenComponentWillMount render');
return <div>{this.props.children}</div>;
}
UNSAFE_componentWillMount() {
log.push('BrokenComponentWillMount componentWillMount [!]');
throw new Error('Hello');
}
componentDidMount() {
log.push('BrokenComponentWillMount componentDidMount');
}
UNSAFE_componentWillReceiveProps() {
log.push('BrokenComponentWillMount componentWillReceiveProps');
}
UNSAFE_componentWillUpdate() {
log.push('BrokenComponentWillMount componentWillUpdate');
}
componentDidUpdate() {
log.push('BrokenComponentWillMount componentDidUpdate');
}
componentWillUnmount() {
log.push('BrokenComponentWillMount componentWillUnmount');
}
};
var ErrorMessage = class extends React.Component {
constructor(props) {
super(props);
log.push('ErrorMessage constructor');
}
UNSAFE_componentWillMount() {
log.push('ErrorMessage componentWillMount');
}
componentDidMount() {
log.push('ErrorMessage componentDidMount');
}
componentWillUnmount() {
log.push('ErrorMessage componentWillUnmount');
}
render() {
log.push('ErrorMessage render');
return <div>Caught an error: {this.props.message}.</div>;
}
};
var ErrorBoundary = class extends React.Component {
constructor(props) {
super(props);
this.state = { error: null };
log.push(`${this.props.logName} constructor`);
}
render() {
if (this.state.error && !this.props.forceRetry) {
log.push(`${this.props.logName} render error`);
return this.props.renderError(this.state.error, this.props);
}
log.push(`${this.props.logName} render success`);
return <div>{this.props.children}</div>;
}
componentDidCatch(error) {
log.push(`${this.props.logName} componentDidCatch`);
this.setState({ error });
}
UNSAFE_componentWillMount() {
log.push(`${this.props.logName} componentWillMount`);
}
componentDidMount() {
log.push(`${this.props.logName} componentDidMount`);
}
UNSAFE_componentWillReceiveProps() {
log.push(`${this.props.logName} componentWillReceiveProps`);
}
UNSAFE_componentWillUpdate() {
log.push(`${this.props.logName} componentWillUpdate`);
}
componentDidUpdate() {
log.push(`${this.props.logName} componentDidUpdate`);
}
componentWillUnmount() {
log.push(`${this.props.logName} componentWillUnmount`);
}
};
ErrorBoundary.defaultProps = {
logName: 'ErrorBoundary',
renderError(error, props) {
return <div ref={props.errorMessageRef}>Caught an error: {error.message}.</div>;
},
};
var RetryErrorBoundary = class extends React.Component {
constructor(props) {
super(props);
log.push('RetryErrorBoundary constructor');
}
render() {
log.push('RetryErrorBoundary render');
return <BrokenRender />;
}
UNSAFE_componentWillMount() {
log.push('RetryErrorBoundary componentWillMount');
}
componentDidMount() {
log.push('RetryErrorBoundary componentDidMount');
}
componentWillUnmount() {
log.push('RetryErrorBoundary componentWillUnmount');
}
componentDidCatch(error) {
log.push('RetryErrorBoundary componentDidCatch [!]');
// In Fiber, calling setState() (and failing) is treated as a rethrow.
this.setState({});
}
};
var Normal = class extends React.Component {
static defaultProps = {
logName: 'Normal',
};
constructor(props) {
super(props);
log.push(`${this.props.logName} constructor`);
}
render() {
log.push(`${this.props.logName} render`);
return <div>{this.props.children}</div>;
}
UNSAFE_componentWillMount() {
log.push(`${this.props.logName} componentWillMount`);
}
componentDidMount() {
log.push(`${this.props.logName} componentDidMount`);
}
UNSAFE_componentWillReceiveProps() {
log.push(`${this.props.logName} componentWillReceiveProps`);
}
UNSAFE_componentWillUpdate() {
log.push(`${this.props.logName} componentWillUpdate`);
}
componentDidUpdate() {
log.push(`${this.props.logName} componentDidUpdate`);
}
componentWillUnmount() {
log.push(`${this.props.logName} componentWillUnmount`);
}
};
var BrokenComponentWillUnmount = class extends React.Component {
static defaultProps = {
errorText: 'Hello',
};
constructor(props) {
super(props);
log.push('BrokenComponentWillUnmount constructor');
}
render() {
log.push('BrokenComponentWillUnmount render');
return <div>{this.props.children}</div>;
}
UNSAFE_componentWillMount() {
log.push('BrokenComponentWillUnmount componentWillMount');
}
componentDidMount() {
log.push('BrokenComponentWillUnmount componentDidMount');
}
UNSAFE_componentWillReceiveProps() {
log.push('BrokenComponentWillUnmount componentWillReceiveProps');
}
UNSAFE_componentWillUpdate() {
log.push('BrokenComponentWillUnmount componentWillUpdate');
}
componentDidUpdate() {
log.push('BrokenComponentWillUnmount componentDidUpdate');
}
componentWillUnmount() {
log.push('BrokenComponentWillUnmount componentWillUnmount [!]');
throw new Error(this.props.errorText);
}
};
var BrokenRenderErrorBoundary = class extends React.Component {
constructor(props) {
super(props);
this.state = { error: null };
log.push('BrokenRenderErrorBoundary constructor');
}
render() {
if (this.state.error) {
log.push('BrokenRenderErrorBoundary render error [!]');
throw new Error('Hello');
}
log.push('BrokenRenderErrorBoundary render success');
return <div>{this.props.children}</div>;
}
UNSAFE_componentWillMount() {
log.push('BrokenRenderErrorBoundary componentWillMount');
}
componentDidMount() {
log.push('BrokenRenderErrorBoundary componentDidMount');
}
componentWillUnmount() {
log.push('BrokenRenderErrorBoundary componentWillUnmount');
}
componentDidCatch(error) {
log.push('BrokenRenderErrorBoundary componentDidCatch');
this.setState({ error });
}
};
ReactDOM.render(
<ErrorBoundary>
<RetryErrorBoundary>
<BrokenRender />
</RetryErrorBoundary>
</ErrorBoundary>,
container
);
expect(container.firstChild.textContent).toBe('Caught an error: Hello.');
let official = [
'ErrorBoundary constructor',
'ErrorBoundary componentWillMount',
'ErrorBoundary render success',
'RetryErrorBoundary constructor',
'RetryErrorBoundary componentWillMount',
'RetryErrorBoundary render',
'BrokenRender constructor',
'BrokenRender componentWillMount',
'BrokenRender render [!]',
// In Fiber, failed error boundaries render null before attempting to recover
'RetryErrorBoundary componentDidMount',
'RetryErrorBoundary componentDidCatch [!]',
'ErrorBoundary componentDidMount',
// Retry
'RetryErrorBoundary render',
'BrokenRender constructor',
'BrokenRender componentWillMount',
'BrokenRender render [!]',
// This time, the error propagates to the higher boundary
'RetryErrorBoundary componentWillUnmount',
'ErrorBoundary componentDidCatch',
// Render the error
'ErrorBoundary componentWillUpdate',
'ErrorBoundary render error',
'ErrorBoundary componentDidUpdate',
];
expect(log).toEqual(official);
//log.length = 0;
//ReactDOM.unmountComponentAtNode(container);
//expect(log).toEqual(['ErrorBoundary componentWillUnmount']);
</script>
</html>