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Switch tests away from using enzyme.mount (components/toggle-control/test/index.js) #7797

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Jul 12, 2018
Merged

Switch tests away from using enzyme.mount (components/toggle-control/test/index.js) #7797

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41 changes: 31 additions & 10 deletions components/toggle-control/test/index.js
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Original file line number Diff line number Diff line change
@@ -1,20 +1,37 @@
/**
* External dependencies
*/
import { mount } from 'enzyme';
import renderer from 'react-test-renderer';

/**
* Internal dependencies
*/
import ToggleControl from '../';

/**
* WordPress dependencies
*/
import { Component } from '@wordpress/element';

// this is needed because TestUtils does not accept a stateless component.
// anything run through a HOC ends up as a stateless component.
const getTestComponent = ( WrappedComponent, props ) => {
class TestComponent extends Component {
render() {
return <WrappedComponent { ...this.props } />;
}
}
return <TestComponent { ...props } />;
};

describe( 'ToggleControl', () => {
it( 'triggers change callback with numeric value', () => {
// Mount: With shallow, cannot find input child of BaseControl
const onChange = jest.fn();
const wrapper = mount( <ToggleControl onChange={ onChange } /> );

wrapper.find( 'input' ).simulate( 'change', { target: { checked: true } } );
const wrapper = renderer.create(
getTestComponent( ToggleControl, { onChange } )
);
wrapper.root.findByType( 'input' ).props.onChange( { target: { checked: true } } );

expect( onChange ).toHaveBeenCalledWith( true );
} );
Expand All @@ -23,21 +40,25 @@ describe( 'ToggleControl', () => {
it( 'does not render input with describedby if no help prop', () => {
// Mount: With shallow, cannot find input child of BaseControl
const onChange = jest.fn();
const wrapper = mount( <ToggleControl onChange={ onChange } /> );
const wrapper = renderer.create(
getTestComponent( ToggleControl, { onChange } )
);

const input = wrapper.find( 'input' );
const input = wrapper.root.findByType( 'input' );

expect( input.prop( 'aria-describedby' ) ).toBeUndefined();
expect( input.props[ 'aria-describedby' ] ).toBeUndefined();
} );

it( 'renders input with describedby if help prop', () => {
// Mount: With shallow, cannot find input child of BaseControl
const onChange = jest.fn();
const wrapper = mount( <ToggleControl help onChange={ onChange } /> );
const wrapper = renderer.create(
getTestComponent( ToggleControl, { help: true, onChange } )
);

const input = wrapper.find( 'input' );
const input = wrapper.root.findByType( 'input' );

expect( input.prop( 'aria-describedby' ) ).toMatch( /^inspector-toggle-control-.*__help$/ );
expect( input.props[ 'aria-describedby' ] ).toMatch( /^inspector-toggle-control-.*__help$/ );
} );
} );
} );