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Ensure lifecycle timers are stopped on errors #7548

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merged 2 commits into from
Aug 24, 2016
Merged

Ensure lifecycle timers are stopped on errors #7548

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2514bfa
Ensure lifecycle timers are stopped on errors
gaearon Aug 23, 2016
6698399
Address review feedback and add an extra test
gaearon Aug 24, 2016
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6 changes: 0 additions & 6 deletions src/renderers/shared/ReactDebugTool.js
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Original file line number Diff line number Diff line change
Expand Up @@ -251,12 +251,6 @@ var ReactDebugTool = {
endLifeCycleTimer(debugID, timerType);
emitEvent('onEndLifeCycleTimer', debugID, timerType);
},
onError(debugID) {
if (currentTimerDebugID != null) {
endLifeCycleTimer(currentTimerDebugID, currentTimerType);
}
emitEvent('onError', debugID);
},
onBeginProcessingChildContext() {
emitEvent('onBeginProcessingChildContext');
},
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204 changes: 204 additions & 0 deletions src/renderers/shared/__tests__/ReactPerf-test.js
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Expand Up @@ -516,4 +516,208 @@ describe('ReactPerf', function() {
renderCount: 2,
}]);
});

it('should not print errant warnings if render() throws', () => {
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var container = document.createElement('div');
var thrownErr = new Error('Muhaha!');

class Evil extends React.Component {
render() {
throw thrownErr;
}
}

ReactPerf.start();
try {
ReactDOM.render(
<div>
<LifeCycle />
<Evil />
</div>,
container
);
} catch (err) {
if (err !== thrownErr) {
throw err;
}
}
ReactPerf.stop();
});

it('should not print errant warnings if componentWillMount() throws', () => {
var container = document.createElement('div');
var thrownErr = new Error('Muhaha!');

class Evil extends React.Component {
componentWillMount() {
throw thrownErr;
}
render() {
return <div />;
}
}

ReactPerf.start();
try {
ReactDOM.render(
<div>
<LifeCycle />
<Evil />
</div>,
container
);
} catch (err) {
if (err !== thrownErr) {
throw err;
}
}
ReactPerf.stop();
});

it('should not print errant warnings if componentDidMount() throws', () => {
var container = document.createElement('div');
var thrownErr = new Error('Muhaha!');

class Evil extends React.Component {
componentDidMount() {
throw thrownErr;
}
render() {
return <div />;
}
}

ReactPerf.start();
try {
ReactDOM.render(
<div>
<LifeCycle />
<Evil />
</div>,
container
);
} catch (err) {
if (err !== thrownErr) {
throw err;
}
}
ReactPerf.stop();
});

it('should not print errant warnings if portal throws in render()', () => {
var container = document.createElement('div');
var thrownErr = new Error('Muhaha!');

class Evil extends React.Component {
render() {
throw thrownErr;
}
}
class EvilPortal extends React.Component {
componentWillMount() {
var portalContainer = document.createElement('div');
ReactDOM.render(<Evil />, portalContainer);
}
render() {
return <div />;
}
}

ReactPerf.start();
try {
ReactDOM.render(
<div>
<LifeCycle />
<EvilPortal />
</div>,
container
);
} catch (err) {
if (err !== thrownErr) {
throw err;
}
}
ReactDOM.unmountComponentAtNode(container);
ReactPerf.stop();
});

it('should not print errant warnings if portal throws in componentWillMount()', () => {
var container = document.createElement('div');
var thrownErr = new Error('Muhaha!');

class Evil extends React.Component {
componentWillMount() {
throw thrownErr;
}
render() {
return <div />;
}
}
class EvilPortal extends React.Component {
componentWillMount() {
var portalContainer = document.createElement('div');
ReactDOM.render(<Evil />, portalContainer);
}
render() {
return <div />;
}
}

ReactPerf.start();
try {
ReactDOM.render(
<div>
<LifeCycle />
<EvilPortal />
</div>,
container
);
} catch (err) {
if (err !== thrownErr) {
throw err;
}
}
ReactDOM.unmountComponentAtNode(container);
ReactPerf.stop();
});

it('should not print errant warnings if portal throws in componentDidMount()', () => {
var container = document.createElement('div');
var thrownErr = new Error('Muhaha!');

class Evil extends React.Component {
componentDidMount() {
throw thrownErr;
}
render() {
return <div />;
}
}
class EvilPortal extends React.Component {
componentWillMount() {
var portalContainer = document.createElement('div');
ReactDOM.render(<Evil />, portalContainer);
}
render() {
return <div />;
}
}

ReactPerf.start();
try {
ReactDOM.render(
<div>
<LifeCycle />
<EvilPortal />
</div>,
container
);
} catch (err) {
if (err !== thrownErr) {
throw err;
}
}
ReactDOM.unmountComponentAtNode(container);
ReactPerf.stop();
});
});
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