/** * @license Copyright (c) 2003-2020, CKSource - Frederico Knabben. All rights reserved. * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license */ import Model from '../../../src/model/model'; import MoveOperation from '../../../src/model/operation/moveoperation'; import Position from '../../../src/model/position'; import Element from '../../../src/model/element'; import Text from '../../../src/model/text'; import { expectToThrowCKEditorError } from '@ckeditor/ckeditor5-utils/tests/_utils/utils'; describe( 'MoveOperation', () => { let model, doc, root, gy; beforeEach( () => { model = new Model(); doc = model.document; root = doc.createRoot(); gy = doc.graveyard; } ); it( 'should have proper type', () => { const move = new MoveOperation( new Position( root, [ 0, 0 ] ), 1, new Position( root, [ 1, 0 ] ), 0 ); expect( move.type ).to.equal( 'move' ); const remove1 = new MoveOperation( new Position( root, [ 0, 0 ] ), 1, new Position( gy, [ 0 ] ), 0 ); expect( remove1.type ).to.equal( 'remove' ); const remove2 = new MoveOperation( new Position( gy, [ 0 ] ), 1, new Position( gy, [ 1 ] ), 0 ); expect( remove2.type ).to.equal( 'remove' ); const reinsert = new MoveOperation( new Position( gy, [ 0 ] ), 1, new Position( root, [ 0, 0 ] ), 0 ); expect( reinsert.type ).to.equal( 'reinsert' ); } ); it( 'should move from one node to another', () => { const p1 = new Element( 'p1', [], new Element( 'x' ) ); const p2 = new Element( 'p2' ); root._insertChild( 0, [ p1, p2 ] ); model.applyOperation( new MoveOperation( new Position( root, [ 0, 0 ] ), 1, new Position( root, [ 1, 0 ] ), doc.version ) ); expect( doc.version ).to.equal( 1 ); expect( root.maxOffset ).to.equal( 2 ); expect( root.getChild( 0 ).name ).to.equal( 'p1' ); expect( root.getChild( 1 ).name ).to.equal( 'p2' ); expect( p1.maxOffset ).to.equal( 0 ); expect( p2.maxOffset ).to.equal( 1 ); expect( p2.getChild( 0 ).name ).to.equal( 'x' ); } ); it( 'should move position of children in one node backward', () => { root._insertChild( 0, new Text( 'xbarx' ) ); model.applyOperation( new MoveOperation( new Position( root, [ 2 ] ), 2, new Position( root, [ 1 ] ), doc.version ) ); expect( doc.version ).to.equal( 1 ); expect( root.maxOffset ).to.equal( 5 ); expect( root.getChild( 0 ).data ).to.equal( 'xarbx' ); } ); it( 'should move position of children in one node forward', () => { root._insertChild( 0, new Text( 'xbarx' ) ); model.applyOperation( new MoveOperation( new Position( root, [ 1 ] ), 2, new Position( root, [ 4 ] ), doc.version ) ); expect( doc.version ).to.equal( 1 ); expect( root.maxOffset ).to.equal( 5 ); expect( root.getChild( 0 ).data ).to.equal( 'xrbax' ); } ); it( 'should create a proper MoveOperation as a reverse', () => { const sourcePosition = new Position( root, [ 0 ] ); const targetPosition = new Position( root, [ 4 ] ); let operation = new MoveOperation( sourcePosition, 3, targetPosition, doc.version ); let reverse = operation.getReversed(); expect( reverse ).to.be.an.instanceof( MoveOperation ); expect( reverse.baseVersion ).to.equal( 1 ); expect( reverse.howMany ).to.equal( 3 ); expect( reverse.sourcePosition.path ).is.deep.equal( [ 1 ] ); expect( reverse.targetPosition.path ).is.deep.equal( [ 0 ] ); operation = new MoveOperation( targetPosition, 3, sourcePosition, doc.version ); reverse = operation.getReversed(); expect( reverse.sourcePosition.path ).is.deep.equal( [ 0 ] ); expect( reverse.targetPosition.path ).is.deep.equal( [ 7 ] ); } ); it( 'should undo move node by applying reverse operation', () => { const p1 = new Element( 'p1', [], new Element( 'x' ) ); const p2 = new Element( 'p2' ); root._insertChild( 0, [ p1, p2 ] ); const operation = new MoveOperation( new Position( root, [ 0, 0 ] ), 1, new Position( root, [ 1, 0 ] ), doc.version ); model.applyOperation( operation ); expect( doc.version ).to.equal( 1 ); expect( root.maxOffset ).to.equal( 2 ); expect( p1.maxOffset ).to.equal( 0 ); expect( p2.maxOffset ).to.equal( 1 ); expect( p2.getChild( 0 ).name ).to.equal( 'x' ); model.applyOperation( operation.getReversed() ); expect( doc.version ).to.equal( 2 ); expect( root.maxOffset ).to.equal( 2 ); expect( p1.maxOffset ).to.equal( 1 ); expect( p1.getChild( 0 ).name ).to.equal( 'x' ); expect( p2.maxOffset ).to.equal( 0 ); } ); describe( '_validate()', () => { it( 'should throw an error if number of nodes to move exceeds the number of existing nodes in given element', () => { root._insertChild( 0, new Text( 'xbarx' ) ); const operation = new MoveOperation( new Position( root, [ 3 ] ), 3, new Position( root, [ 1 ] ), doc.version ); expectToThrowCKEditorError( () => operation._validate(), /move-operation-nodes-do-not-exist/, model ); } ); it( 'should throw an error if target or source parent-element specified by position does not exist', () => { const p = new Element( 'p' ); p._insertChild( 0, new Text( 'foo' ) ); root._insertChild( 0, [ new Text( 'ab' ), p ] ); const operation = new MoveOperation( new Position( root, [ 2, 0 ] ), 3, new Position( root, [ 1 ] ), doc.version ); root._removeChildren( 1 ); expectToThrowCKEditorError( () => operation._validate(), /model-position-path-incorrect/, model ); } ); it( 'should throw an error if operation tries to move a range between the beginning and the end of that range', () => { root._insertChild( 0, new Text( 'xbarx' ) ); const operation = new MoveOperation( new Position( root, [ 1 ] ), 3, new Position( root, [ 2 ] ), doc.version ); expectToThrowCKEditorError( () => operation._validate(), /move-operation-range-into-itself/, model ); } ); it( 'should throw an error if operation tries to move a range into a sub-tree of a node that is in that range', () => { const p = new Element( 'p', [], [ new Element( 'p' ) ] ); root._insertChild( 0, [ new Text( 'ab' ), p, new Text( 'xy' ) ] ); const operation = new MoveOperation( new Position( root, [ 1 ] ), 3, new Position( root, [ 2, 0, 0 ] ), doc.version ); expectToThrowCKEditorError( () => operation._validate(), /move-operation-node-into-itself/, model ); } ); it( 'should not throw an error if operation move a range into a sibling', () => { const p = new Element( 'p' ); root._insertChild( 0, [ new Text( 'ab' ), p, new Text( 'xy' ) ] ); const operation = new MoveOperation( new Position( root, [ 1 ] ), 1, new Position( root, [ 2, 0 ] ), doc.version ); expect( () => operation._validate() ).not.to.throw(); } ); it( 'should not throw when operation paths looks like incorrect but move is between different roots', () => { const p = new Element( 'p' ); root._insertChild( 0, [ new Text( 'a' ), p, new Text( 'b' ) ] ); doc.graveyard._insertChild( 0, new Text( 'abc' ) ); const operation = new MoveOperation( new Position( doc.graveyard, [ 0 ] ), 2, new Position( root, [ 1, 0 ] ), doc.version ); expect( () => operation._validate() ).not.to.throw(); } ); } ); it( 'should create MoveOperation with the same parameters when cloned', () => { const sourcePosition = new Position( root, [ 0 ] ); const targetPosition = new Position( root, [ 1 ] ); const howMany = 4; const baseVersion = doc.version; const op = new MoveOperation( sourcePosition, howMany, targetPosition, baseVersion ); const clone = op.clone(); // New instance rather than a pointer to the old instance. expect( clone ).not.to.equal( op ); expect( clone ).to.be.instanceof( MoveOperation ); expect( clone.sourcePosition.isEqual( sourcePosition ) ).to.be.true; expect( clone.targetPosition.isEqual( targetPosition ) ).to.be.true; expect( clone.howMany ).to.equal( howMany ); expect( clone.baseVersion ).to.equal( baseVersion ); } ); describe( 'getMovedRangeStart', () => { it( 'should return move operation target position transformed by removing move operation source range', () => { const sourcePosition = new Position( root, [ 0, 2 ] ); const targetPosition = new Position( root, [ 0, 6 ] ); const howMany = 3; const baseVersion = doc.version; const op = new MoveOperation( sourcePosition, howMany, targetPosition, baseVersion ); expect( op.getMovedRangeStart().path ).to.deep.equal( [ 0, 3 ] ); } ); } ); describe( 'toJSON', () => { it( 'should create proper json object', () => { const sourcePosition = new Position( root, [ 0, 0 ] ); const targetPosition = new Position( root, [ 1, 0 ] ); const op = new MoveOperation( sourcePosition, 1, targetPosition, doc.version ); const serialized = op.toJSON(); expect( serialized ).to.deep.equal( { __className: 'MoveOperation', baseVersion: 0, howMany: 1, sourcePosition: op.sourcePosition.toJSON(), targetPosition: op.targetPosition.toJSON() } ); } ); } ); describe( 'fromJSON', () => { it( 'should create proper MoveOperation from json object', () => { const sourcePosition = new Position( root, [ 0, 0 ] ); const targetPosition = new Position( root, [ 1, 0 ] ); const op = new MoveOperation( sourcePosition, 1, targetPosition, doc.version ); const serialized = op.toJSON(); const deserialized = MoveOperation.fromJSON( serialized, doc ); expect( deserialized ).to.deep.equal( op ); } ); } ); } );