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ReactIs.isValidElementType Unit Test extended with PureComponent case #20033

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merged 2 commits into from
Oct 15, 2020
Merged

ReactIs.isValidElementType Unit Test extended with PureComponent case #20033

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ReactIs.isValidElementType Unit Test extended with PureComponent case
Oct 15, 2020
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prettier changes applied
Oct 15, 2020
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8 changes: 8 additions & 0 deletions packages/react-is/src/__tests__/ReactIs-test.js
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Original file line number Diff line number Diff line change
Expand Up @@ -29,6 +29,8 @@ describe('ReactIs', () => {
expect(ReactIs.typeOf({})).toBe(undefined);
expect(ReactIs.typeOf(null)).toBe(undefined);
expect(ReactIs.typeOf(undefined)).toBe(undefined);
expect(ReactIs.typeOf(NaN)).toBe(undefined);
expect(ReactIs.typeOf(Symbol('def'))).toBe(undefined);
});

it('identifies valid element types', () => {
Expand All @@ -37,6 +39,11 @@ describe('ReactIs', () => {
return React.createElement('div');
}
}
class PureComponent extends React.PureComponent {
render() {
return React.createElement('div');
}
}

const FunctionComponent = () => React.createElement('div');
const ForwardRefComponent = React.forwardRef((props, ref) =>
Expand All @@ -48,6 +55,7 @@ describe('ReactIs', () => {

expect(ReactIs.isValidElementType('div')).toEqual(true);
expect(ReactIs.isValidElementType(Component)).toEqual(true);
expect(ReactIs.isValidElementType(PureComponent)).toEqual(true);
expect(ReactIs.isValidElementType(FunctionComponent)).toEqual(true);
expect(ReactIs.isValidElementType(ForwardRefComponent)).toEqual(true);
expect(ReactIs.isValidElementType(LazyComponent)).toEqual(true);
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