55 lines
2.3 KiB
JavaScript
55 lines
2.3 KiB
JavaScript
/**
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* External dependencies
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*/
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import TestRenderer, { act } from 'react-test-renderer';
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/**
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* Internal dependencies
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*/
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import { useShallowEqual } from '../use-shallow-equal';
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describe( 'useShallowEqual', () => {
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const TestComponent = ( { testValue } ) => {
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const newValue = useShallowEqual( testValue );
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return <div newValue={ newValue } />;
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};
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let renderer;
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beforeEach( () => ( renderer = null ) );
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it.each`
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testValueA | aType | testValueB | bType | expectEqual
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${ { a: 'b', foo: 'bar' } } | ${ 'object' } | ${ { foo: 'bar', a: 'b' } } | ${ 'object' } | ${ true }
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${ { a: 'b', foo: 'bar' } } | ${ 'object' } | ${ { foo: 'bar', a: 'c' } } | ${ 'object' } | ${ false }
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${ [ 'b', 'bar' ] } | ${ 'array' } | ${ [ 'b', 'bar' ] } | ${ 'array' } | ${ true }
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${ [ 'b', 'bar' ] } | ${ 'array' } | ${ [ 'bar', 'b' ] } | ${ 'array' } | ${ false }
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${ 1 } | ${ 'number' } | ${ 1 } | ${ 'number' } | ${ true }
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${ 1 } | ${ 'number' } | ${ '1' } | ${ 'string' } | ${ false }
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${ '1' } | ${ 'string' } | ${ '1' } | ${ 'string' } | ${ true }
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${ 1 } | ${ 'number' } | ${ 2 } | ${ 'number' } | ${ false }
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${ 1 } | ${ 'number' } | ${ true } | ${ 'bool' } | ${ false }
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${ 0 } | ${ 'number' } | ${ false } | ${ 'bool' } | ${ false }
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${ true } | ${ 'bool' } | ${ true } | ${ 'bool' } | ${ true }
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`(
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'$testValueA ($aType) and $testValueB ($bType) are expected to be equal ($expectEqual)',
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( { testValueA, testValueB, expectEqual } ) => {
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let testPropValue;
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act( () => {
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renderer = TestRenderer.create(
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<TestComponent testValue={ testValueA } />
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);
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} );
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testPropValue = renderer.root.findByType( 'div' ).props.newValue;
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expect( testPropValue ).toBe( testValueA );
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// do update
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act( () => {
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renderer.update( <TestComponent testValue={ testValueB } /> );
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} );
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testPropValue = renderer.root.findByType( 'div' ).props.newValue;
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if ( expectEqual ) {
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expect( testPropValue ).toBe( testValueA );
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} else {
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expect( testPropValue ).toBe( testValueB );
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}
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}
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);
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} );
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