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tests: add regression test for reading ReactCurrentOwner stateNode #12412

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Merged
gaearon merged 2 commits into from
Apr 16, 2018
Merged

tests: add regression test for reading ReactCurrentOwner stateNode #12412

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tests: add regression test for reading ReactCurrentOwner stateNode
raunofreiberg Mar 21, 2018
a8d5826
tests: replace expect with just rendering the component
raunofreiberg Mar 21, 2018
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20 changes: 20 additions & 0 deletions packages/react-dom/src/__tests__/ReactDOM-test.js
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Original file line number Diff line number Diff line change
Expand Up @@ -377,6 +377,26 @@ describe('ReactDOM', () => {
}
});

it('should not crash calling findDOMNode inside a functional component', () => {
const container = document.createElement('div');

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

const instance = ReactTestUtils.renderIntoDocument(<Component />);
const App = () => {
ReactDOM.findDOMNode(instance);
return <div />;
};

if (__DEV__) {
ReactDOM.render(<App />, container);
}
});

it('throws in DEV if jsdom is destroyed by the time setState() is called', () => {
class App extends React.Component {
state = {x: 1};
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