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index.js
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index.js
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/**
* External dependencies
*/
import { fireEvent, render, screen } from '@testing-library/react';
/**
* WordPress dependencies
*/
import { useDispatch, useSelect } from '@wordpress/data';
/**
* Internal dependencies
*/
import BlockSelectionClearer from '../';
const defaultUseSelectValues = {
hasSelectedBlock: jest.fn().mockReturnValue( false ),
hasMultiSelection: jest.fn().mockReturnValue( false ),
getSettings: jest.fn().mockReturnValue( {
__experimentalClearBlockSelection: true,
} ),
};
jest.mock( '@wordpress/data/src/components/use-dispatch', () => ( {
useDispatch: jest.fn(),
} ) );
jest.mock( '@wordpress/data/src/components/use-select', () => {
// This allows us to tweak the returned value on each test.
const mock = jest.fn();
return mock;
} );
describe( 'BlockSelectionClearer component', () => {
it( 'should clear the selected block when a selected block exists', () => {
const mockClearSelectedBlock = jest.fn();
useSelect.mockImplementation( () => ( {
...defaultUseSelectValues,
hasSelectedBlock: jest.fn().mockReturnValue( true ),
} ) );
useDispatch.mockImplementation( () => ( {
clearSelectedBlock: mockClearSelectedBlock,
} ) );
render(
<BlockSelectionClearer data-testid="selection-clearer">
<button>Not a block</button>
</BlockSelectionClearer>
);
fireEvent.mouseDown( screen.getByTestId( 'selection-clearer' ) );
expect( mockClearSelectedBlock ).toHaveBeenCalled();
} );
it( 'should clear the selected block when multiple blocks are selected', () => {
const mockClearSelectedBlock = jest.fn();
useSelect.mockImplementation( () => ( {
...defaultUseSelectValues,
hasMultiSelection: jest.fn().mockReturnValue( true ),
} ) );
useDispatch.mockImplementation( () => ( {
clearSelectedBlock: mockClearSelectedBlock,
} ) );
render(
<BlockSelectionClearer data-testid="selection-clearer">
<button>Not a block</button>
</BlockSelectionClearer>
);
fireEvent.mouseDown( screen.getByTestId( 'selection-clearer' ) );
expect( mockClearSelectedBlock ).toHaveBeenCalled();
} );
it( 'should not clear the block selection when no blocks are selected', () => {
const mockClearSelectedBlock = jest.fn();
useSelect.mockImplementation( () => defaultUseSelectValues );
useDispatch.mockImplementation( () => ( {
clearSelectedBlock: mockClearSelectedBlock,
} ) );
render(
<BlockSelectionClearer data-testid="selection-clearer">
<button>Not a block</button>
</BlockSelectionClearer>
);
fireEvent.mouseDown( screen.getByTestId( 'selection-clearer' ) );
expect( mockClearSelectedBlock ).not.toHaveBeenCalled();
} );
it( 'should not clear the block selection when the feature is disabled', () => {
const mockClearSelectedBlock = jest.fn();
useSelect.mockImplementation( () => ( {
...defaultUseSelectValues,
hasSelectedBlock: jest.fn().mockReturnValue( true ),
getSettings: jest.fn().mockReturnValue( {
__experimentalClearBlockSelection: false,
} ),
} ) );
useDispatch.mockImplementation( () => ( {
clearSelectedBlock: mockClearSelectedBlock,
} ) );
render(
<BlockSelectionClearer data-testid="selection-clearer">
<button>Not a block</button>
</BlockSelectionClearer>
);
fireEvent.mouseDown( screen.getByTestId( 'selection-clearer' ) );
expect( mockClearSelectedBlock ).not.toHaveBeenCalled();
} );
} );