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src/components/collaborative-editing/use-yjs/__test-helpers__/utils.js
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| /** | ||
| * Helper to generate mock transport modules for an isolated channel. | ||
| * | ||
| * @param {number} count - Number of transport modules to generate. | ||
| * @return {Object[]} - Array of transport modules. | ||
| */ | ||
| export function getTransports( count ) { | ||
| const peers = {}; | ||
|
|
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| const getAvailablePeers = ( excludeId ) => | ||
| Object.values( peers ).reduce( ( acc, p ) => { | ||
| if ( p.user.id === excludeId ) return acc; | ||
| return [ ...acc, p.user ]; | ||
| }, [] ); | ||
|
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| const mockTransport = () => { | ||
| const transport = { | ||
| _identity: undefined, | ||
| connect: jest.fn( ( { onReceiveMessage, setAvailablePeers, user } ) => { | ||
| transport._identity = user.identity; | ||
| peers[ user.identity ] = { onReceiveMessage, setAvailablePeers, user: { ...user, id: user.identity } }; | ||
| Object.keys( peers ).forEach( ( identity ) => { | ||
| peers[ identity ].setAvailablePeers( getAvailablePeers( identity ) ); | ||
| } ); | ||
| return Promise.resolve( { isFirstInChannel: Object.keys( peers ).length === 1 } ); | ||
| } ), | ||
| sendMessage: jest.fn( ( data ) => { | ||
| // console.log( data.message.messageType, data.identity.substring( 0, 4 ) ); | ||
| Object.keys( peers ).forEach( ( identity ) => { | ||
| if ( identity !== data.identity ) { | ||
| peers[ identity ].onReceiveMessage( data ); | ||
| } | ||
| } ); | ||
| } ), | ||
| disconnect: jest.fn( () => { | ||
| delete peers[ transport._identity ]; | ||
| Object.keys( peers ).forEach( ( identity ) => { | ||
| peers[ identity ].setAvailablePeers( getAvailablePeers( identity ) ); | ||
| } ); | ||
| } ), | ||
| }; | ||
|
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| return transport; | ||
| }; | ||
|
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| return Array( count ) | ||
| .fill( null ) | ||
| .map( () => mockTransport() ); | ||
| } |
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76
src/components/collaborative-editing/use-yjs/__tests__/undo.js
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| /** | ||
| * External dependencies | ||
| */ | ||
| import { render, screen, waitFor } from '@testing-library/react'; | ||
| import userEvent from '@testing-library/user-event'; | ||
|
|
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| /** | ||
| * Internal dependencies | ||
| */ | ||
| import IsolatedBlockEditor, { CollaborativeEditing } from '../../../../index'; | ||
| import { getTransports } from '../__test-helpers__/utils'; | ||
|
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| const collabSettings = { | ||
| enabled: true, | ||
| username: 'Peery Peerson', | ||
| avatarUrl: 'fake-image.jpg', | ||
| }; | ||
|
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| describe( 'CollaborativeEditing: Undo/Redo', () => { | ||
| beforeEach( () => { | ||
| // Real timers are used so Yjs can merge undo stack items | ||
| jest.useRealTimers(); | ||
| } ); | ||
|
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| afterEach( () => { | ||
| jest.useFakeTimers(); | ||
| } ); | ||
|
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| it( 'should undo/redo single user edits', async () => { | ||
| const [ transport ] = getTransports( 1 ); | ||
| const onSave = jest.fn(); | ||
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| render( | ||
| <IsolatedBlockEditor settings={ {} } onSaveContent={ onSave }> | ||
| <CollaborativeEditing settings={ { ...collabSettings, transport } } /> | ||
| </IsolatedBlockEditor> | ||
| ); | ||
|
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| expect( screen.getByRole( 'button', { name: 'Undo' } ) ).toHaveAttribute( 'aria-disabled', 'true' ); | ||
| expect( screen.getByRole( 'button', { name: 'Redo' } ) ).toHaveAttribute( 'aria-disabled', 'true' ); | ||
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| userEvent.click( screen.getByText( /^Start writing.+/ ) ); | ||
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| userEvent.keyboard( 'hello' ); | ||
| expect( screen.getByRole( 'document', { name: 'Paragraph block' } ) ).toHaveTextContent( 'hello' ); | ||
|
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| // Emulate pause for Yjs to make a new undo stack item | ||
| screen.getByRole( 'document', { name: 'Paragraph block' } ).blur(); | ||
| await waitFor( () => new Promise( ( resolve ) => setTimeout( resolve, 500 ) ) ); | ||
| userEvent.click( screen.getByRole( 'document', { name: 'Paragraph block' } ) ); | ||
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| userEvent.keyboard( 'world' ); | ||
| expect( screen.getByRole( 'document', { name: 'Paragraph block' } ) ).toHaveTextContent( 'helloworld' ); | ||
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| expect( screen.getByRole( 'button', { name: 'Undo' } ) ).toHaveAttribute( 'aria-disabled', 'false' ); | ||
| userEvent.click( screen.getByRole( 'button', { name: 'Undo' } ) ); | ||
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| expect( screen.getByRole( 'document', { name: 'Paragraph block' } ) ).toHaveTextContent( 'hello' ); | ||
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| expect( screen.getByRole( 'button', { name: 'Undo' } ) ).toHaveAttribute( 'aria-disabled', 'false' ); | ||
| expect( screen.getByRole( 'button', { name: 'Redo' } ) ).toHaveAttribute( 'aria-disabled', 'false' ); | ||
| userEvent.click( screen.getByRole( 'button', { name: 'Undo' } ) ); | ||
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| expect( screen.getByText( /^Start writing.+/ ) ).toBeInTheDocument(); | ||
| expect( onSave ).toHaveBeenLastCalledWith( '' ); | ||
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| expect( screen.getByRole( 'button', { name: 'Undo' } ) ).toHaveAttribute( 'aria-disabled', 'true' ); | ||
| expect( screen.getByRole( 'button', { name: 'Redo' } ) ).toHaveAttribute( 'aria-disabled', 'false' ); | ||
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| userEvent.click( screen.getByRole( 'button', { name: 'Redo' } ) ); | ||
| expect( screen.getByRole( 'document', { name: 'Paragraph block' } ) ).toHaveTextContent( 'hello' ); | ||
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| userEvent.click( screen.getByRole( 'button', { name: 'Redo' } ) ); | ||
| expect( screen.getByRole( 'document', { name: 'Paragraph block' } ) ).toHaveTextContent( 'helloworld' ); | ||
| } ); | ||
| } ); |