/** * @license Copyright (c) 2003-2015, CKSource - Frederico Knabben. All rights reserved. * For licensing, see LICENSE.md. */ /* bender-tags: document */ /* bender-include: ../../_tools/tools.js */ /* global describe, before, beforeEach, it, expect */ 'use strict'; const modules = bender.amd.require( 'document/document', 'document/operation/moveoperation', 'document/operation/insertoperation', 'document/operation/changeoperation', 'document/operation/nooperation', 'document/attribute', 'document/position', 'document/range', 'document/element', 'document/node', 'document/nodelist', 'ckeditorerror' ); describe( 'MoveOperation', () => { let Document, MoveOperation, InsertOperation, ChangeOperation, NoOperation, Attribute, Position, Range, Element, Node, NodeList, CKEditorError; before( () => { Document = modules[ 'document/document' ]; MoveOperation = modules[ 'document/operation/moveoperation' ]; InsertOperation = modules[ 'document/operation/insertoperation' ]; ChangeOperation = modules[ 'document/operation/changeoperation' ]; NoOperation = modules[ 'document/operation/nooperation' ]; Attribute = modules[ 'document/attribute' ]; Position = modules[ 'document/position' ]; Range = modules[ 'document/range' ]; Element = modules[ 'document/element' ]; Node = modules[ 'document/node' ]; NodeList = modules[ 'document/nodelist' ]; CKEditorError = modules.ckeditorerror; } ); let doc, root; beforeEach( () => { doc = new Document(); root = doc.createRoot( 'root' ); } ); it( 'should move from one node to another', () => { let p1 = new Element( 'p1', [], new Element( 'x' ) ); let p2 = new Element( 'p2' ); root.insertChildren( 0, [ p1, p2 ] ); doc.applyOperation( new MoveOperation( new Position( [ 0, 0 ], root ), new Position( [ 1, 0 ], root ), 1, doc.version ) ); expect( doc.version ).to.equal( 1 ); expect( root.getChildCount() ).to.equal( 2 ); expect( root.getChild( 0 ).name ).to.equal( 'p1' ); expect( root.getChild( 1 ).name ).to.equal( 'p2' ); expect( p1.getChildCount() ).to.equal( 0 ); expect( p2.getChildCount() ).to.equal( 1 ); expect( p2.getChild( 0 ).name ).to.equal( 'x' ); } ); it( 'should move position of children in one node backward', () => { root.insertChildren( 0, 'xbarx' ); doc.applyOperation( new MoveOperation( new Position( [ 2 ], root ), new Position( [ 1 ], root ), 2, doc.version ) ); expect( doc.version ).to.equal( 1 ); expect( root.getChildCount() ).to.equal( 5 ); expect( root.getChild( 0 ).character ).to.equal( 'x' ); expect( root.getChild( 1 ).character ).to.equal( 'a' ); expect( root.getChild( 2 ).character ).to.equal( 'r' ); expect( root.getChild( 3 ).character ).to.equal( 'b' ); expect( root.getChild( 4 ).character ).to.equal( 'x' ); } ); it( 'should move position of children in one node forward', () => { root.insertChildren( 0, 'xbarx' ); doc.applyOperation( new MoveOperation( new Position( [ 1 ], root ), new Position( [ 4 ], root ), 2, doc.version ) ); expect( doc.version ).to.equal( 1 ); expect( root.getChildCount() ).to.equal( 5 ); expect( root.getChild( 0 ).character ).to.equal( 'x' ); expect( root.getChild( 1 ).character ).to.equal( 'r' ); expect( root.getChild( 2 ).character ).to.equal( 'b' ); expect( root.getChild( 3 ).character ).to.equal( 'a' ); expect( root.getChild( 4 ).character ).to.equal( 'x' ); } ); it( 'should create a move operation as a reverse', () => { let nodeList = new NodeList( 'bar' ); let sourcePosition = new Position( [ 0 ], root ); let targetPosition = new Position( [ 4 ], root ); let operation = new MoveOperation( sourcePosition, targetPosition, nodeList.length, doc.version ); let reverse = operation.getReversed(); expect( reverse ).to.be.an.instanceof( MoveOperation ); expect( reverse.baseVersion ).to.equal( 1 ); expect( reverse.howMany ).to.equal( nodeList.length ); expect( reverse.sourcePosition.isEqual( targetPosition ) ).to.be.true; expect( reverse.targetPosition.isEqual( sourcePosition ) ).to.be.true; } ); it( 'should undo move node by applying reverse operation', () => { let p1 = new Element( 'p1', [], new Element( 'x' ) ); let p2 = new Element( 'p2' ); root.insertChildren( 0, [ p1, p2 ] ); let operation = new MoveOperation( new Position( [ 0, 0 ], root ), new Position( [ 1, 0 ], root ), 1, doc.version ); doc.applyOperation( operation ); expect( doc.version ).to.equal( 1 ); expect( root.getChildCount() ).to.equal( 2 ); expect( p1.getChildCount() ).to.equal( 0 ); expect( p2.getChildCount() ).to.equal( 1 ); expect( p2.getChild( 0 ).name ).to.equal( 'x' ); doc.applyOperation( operation.getReversed() ); expect( doc.version ).to.equal( 2 ); expect( root.getChildCount() ).to.equal( 2 ); expect( p1.getChildCount() ).to.equal( 1 ); expect( p1.getChild( 0 ).name ).to.equal( 'x' ); expect( p2.getChildCount() ).to.equal( 0 ); } ); it( 'should throw an error if number of nodes to move exceeds the number of existing nodes in given element', () => { root.insertChildren( 0, 'xbarx' ); let operation = new MoveOperation( new Position( [ 3 ], root ), new Position( [ 1 ], root ), 3, doc.version ); expect( () => doc.applyOperation( operation ) ).to.throw( CKEditorError, /operation-move-nodes-do-not-exist/ ); } ); it( 'should throw an error if target or source parent-element specified by position does not exist', () => { let p = new Element( 'p' ); p.insertChildren( 0, 'foo' ); root.insertChildren( 0, [ 'ab', p ] ); let operation = new MoveOperation( new Position( [ 2, 0 ], root ), new Position( [ 1 ], root ), 3, doc.version ); root.removeChildren( 2, 1 ); expect( () => doc.applyOperation( operation ) ).to.throw( CKEditorError, /operation-move-position-invalid/ ); } ); it( 'should throw an error if operation tries to move a range between the beginning and the end of that range', () => { root.insertChildren( 0, 'xbarx' ); let operation = new MoveOperation( new Position( [ 1 ], root ), new Position( [ 2 ], root ), 3, doc.version ); expect( () => doc.applyOperation( operation ) ).to.throw( CKEditorError, /operation-move-range-into-itself/ ); } ); it( 'should throw an error if operation tries to move a range into a sub-tree of a node that is in that range', () => { let p = new Element( 'p', [], [ new Element( 'p' ) ] ); root.insertChildren( 0, [ 'ab', p, 'xy' ] ); let operation = new MoveOperation( new Position( [ 1 ], root ), new Position( [ 2, 0, 0 ], root ), 3, doc.version ); expect( () => doc.applyOperation( operation ) ).to.throw( CKEditorError, /operation-move-node-into-itself/ ); } ); it( 'should not throw an error if operation move a range into a sibling', () => { let p = new Element( 'p' ); root.insertChildren( 0, [ 'ab', p, 'xy' ] ); let operation = new MoveOperation( new Position( [ 1 ], root ), new Position( [ 2, 0 ], root ), 1, doc.version ); expect( () => { doc.applyOperation( operation ); } ).not.to.throw(); expect( root.getChildCount() ).to.equal( 4 ); expect( p.getChildCount() ).to.equal( 1 ); expect( p.getChild( 0 ).character ).to.equal( 'b' ); } ); it( 'should create operation with the same parameters when cloned', () => { let sourcePosition = new Position( [ 0 ], root ); let targetPosition = new Position( [ 1 ], root ); let howMany = 4; let baseVersion = doc.version; let op = new MoveOperation( sourcePosition, targetPosition, howMany, baseVersion ); let clone = op.clone(); // New instance rather than a pointer to the old instance. expect( clone ).not.to.be.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( 'getTransformedBy', () => { let nodeA, nodeB, op, baseVersion, sourcePosition, targetPosition, rangeEnd, howMany, expected; let expectOperation; beforeEach( () => { nodeA = new Node(); nodeB = new Node(); baseVersion = doc.version; sourcePosition = new Position( [ 2, 2, 4 ], root ); targetPosition = new Position( [ 3, 3, 3 ], root ); howMany = 2; rangeEnd = sourcePosition.clone(); rangeEnd.offset += howMany; op = new MoveOperation( sourcePosition, targetPosition, howMany, baseVersion ); expected = { type: MoveOperation, sourcePosition: sourcePosition.clone(), targetPosition: targetPosition.clone(), howMany: howMany, baseVersion: baseVersion + 1 }; expectOperation = bender.tools.operations.expectOperation( Position, Range ); } ); describe( 'InsertOperation', () => { it( 'target at different position than move range and target: no operation update', () => { let transformBy = new InsertOperation( new Position( [ 1, 3, 2 ], root ), [ nodeA, nodeB ], baseVersion ); let transOp = op.getTransformedBy( transformBy ); expectOperation( transOp[ 0 ], expected ); } ); it( 'target inside node from move range: no operation update', () => { let transformBy = new InsertOperation( new Position( [ 2, 2, 3, 1 ], root ), [ nodeA, nodeB ], baseVersion ); let transOp = op.getTransformedBy( transformBy ); expectOperation( transOp[ 0 ], expected ); } ); it( 'target at offset before range offset: increment range offset', () => { let transformBy = new InsertOperation( new Position( [ 2, 2, 0 ], root ), [ nodeA, nodeB ], baseVersion ); let transOp = op.getTransformedBy( transformBy ); expected.sourcePosition.offset += 2; expectOperation( transOp[ 0 ], expected ); } ); it( 'target at offset after range offset: no operation update', () => { let transformBy = new InsertOperation( new Position( [ 2, 2, 6 ], root ), [ nodeA, nodeB ], baseVersion ); let transOp = op.getTransformedBy( transformBy ); expectOperation( transOp[ 0 ], expected ); } ); it( 'target before node from range start path: increment index on range start path', () => { let transformBy = new InsertOperation( new Position( [ 2, 0 ], root ), [ nodeA, nodeB ], baseVersion ); let transOp = op.getTransformedBy( transformBy ); expected.sourcePosition.path[ 1 ] += 2; expectOperation( transOp[ 0 ], expected ); } ); it( 'target after node from range start path: no operation update', () => { let transformBy = new InsertOperation( new Position( [ 2, 3 ], root ), [ nodeA, nodeB ], baseVersion ); let transOp = op.getTransformedBy( transformBy ); expectOperation( transOp[ 0 ], expected ); } ); it( 'target offset before move target offset: increment target offset', () => { let transformBy = new InsertOperation( new Position( [ 3, 3, 2 ], root ), [ nodeA, nodeB ], baseVersion ); let transOp = op.getTransformedBy( transformBy ); expected.targetPosition.offset += 2; expectOperation( transOp[ 0 ], expected ); } ); it( 'target offset after move target offset: no operation update', () => { let transformBy = new InsertOperation( new Position( [ 3, 3, 4 ], root ), [ nodeA, nodeB ], baseVersion ); let transOp = op.getTransformedBy( transformBy ); expectOperation( transOp[ 0 ], expected ); } ); it( 'target before node from move target position path: increment index on move target position path', () => { let transformBy = new InsertOperation( new Position( [ 3, 0 ], root ), [ nodeA, nodeB ], baseVersion ); let transOp = op.getTransformedBy( transformBy ); expected.targetPosition.path[ 1 ] += 2; expectOperation( transOp[ 0 ], expected ); } ); it( 'target after node from move target position path: no operation update', () => { let transformBy = new InsertOperation( new Position( [ 3, 6 ], root ), [ nodeA, nodeB ], baseVersion ); let transOp = op.getTransformedBy( transformBy ); expectOperation( transOp[ 0 ], expected ); } ); it( 'target offset same as move target offset and is important: increment target offset', () => { let transformBy = new InsertOperation( new Position( [ 3, 3, 3 ], root ), [ nodeA, nodeB ], baseVersion ); let transOp = op.getTransformedBy( transformBy ); expected.targetPosition.offset += 2; expectOperation( transOp[ 0 ], expected ); } ); it( 'target offset same as move target offset and is less important: no operation update', () => { let transformBy = new InsertOperation( new Position( [ 3, 3, 3 ], root ), [ nodeA, nodeB ], baseVersion ); let transOp = op.getTransformedBy( transformBy, true ); expectOperation( transOp[ 0 ], expected ); } ); it( 'target offset same as move target offset and is important: increment target offset', () => { let transformBy = new InsertOperation( new Position( [ 3, 3 ], root ), [ nodeA, nodeB ], baseVersion ); let transOp = op.getTransformedBy( transformBy ); expected.targetPosition.path[ 1 ] += 2; expectOperation( transOp[ 0 ], expected ); } ); it( 'target inside move range: split into two operations', () => { let transformBy = new InsertOperation( new Position( [ 2, 2, 5 ], root ), [ nodeA, nodeB ], baseVersion ); let transOp = op.getTransformedBy( transformBy ); expect( transOp ).to.be.instanceof( Array ); expect( transOp.length ).to.equal( 2 ); expected.sourcePosition.path = [ 2, 2, 7 ]; expected.howMany = 1; expectOperation( transOp[ 0 ], expected ); expected.sourcePosition.path = [ 2, 2, 4 ]; expected.howMany = 1; expected.baseVersion++; expectOperation( transOp[ 1 ], expected ); } ); } ); describe( 'ChangeOperation', () => { it( 'no operation update', () => { let transformBy = new ChangeOperation( new Range( sourcePosition, rangeEnd ), new Attribute( 'abc', true ), new Attribute( 'abc', false ), baseVersion ); let transOp = op.getTransformedBy( transformBy ); expectOperation( transOp[ 0 ], expected ); } ); } ); describe( 'MoveOperation', () => { it( 'range and target different than transforming range and target: no operation update', () => { let transformBy = new MoveOperation( new Position( [ 1, 2 ], root ), new Position( [ 4, 1, 0 ], root ), 3, baseVersion ); let transOp = op.getTransformedBy( transformBy ); expectOperation( transOp[ 0 ], expected ); } ); it( 'target offset before transforming range start offset: increment range offset', () => { let transformBy = new MoveOperation( new Position( [ 4, 1, 0 ], root ), new Position( [ 2, 2, 0 ], root ), 2, baseVersion ); let transOp = op.getTransformedBy( transformBy ); expected.sourcePosition.offset += 2; expectOperation( transOp[ 0 ], expected ); } ); it( 'target offset after transforming range start offset: no operation update', () => { let transformBy = new MoveOperation( new Position( [ 4, 1, 0 ], root ), new Position( [ 2, 2, 7 ], root ), 2, baseVersion ); let transOp = op.getTransformedBy( transformBy ); expectOperation( transOp[ 0 ], expected ); } ); it( 'range start offset before transforming range start offset: decrement range offset', () => { let transformBy = new MoveOperation( new Position( [ 2, 2, 0 ], root ), new Position( [ 4, 1, 0 ], root ), 2, baseVersion ); let transOp = op.getTransformedBy( transformBy ); expected.sourcePosition.offset -= 2; expectOperation( transOp[ 0 ], expected ); } ); it( 'range start offset after transforming range start offset: no operation update', () => { let transformBy = new MoveOperation( new Position( [ 2, 2, 9 ], root ), new Position( [ 4, 1, 0 ], root ), 2, baseVersion ); let transOp = op.getTransformedBy( transformBy, true ); expectOperation( transOp[ 0 ], expected ); } ); it( 'target before node from transforming range start path: increment index on range start path', () => { let transformBy = new MoveOperation( new Position( [ 4, 1, 0 ], root ), new Position( [ 2, 1 ], root ), 2, baseVersion ); let transOp = op.getTransformedBy( transformBy ); expected.sourcePosition.path[ 1 ] += 2; expectOperation( transOp[ 0 ], expected ); } ); it( 'target after node from transforming range start path: no operation update', () => { let transformBy = new MoveOperation( new Position( [ 4, 1, 0 ], root ), new Position( [ 2, 5 ], root ), 2, baseVersion ); let transOp = op.getTransformedBy( transformBy ); expectOperation( transOp[ 0 ], expected ); } ); it( 'range before node from transforming range start path: decrement index on range start path', () => { let transformBy = new MoveOperation( new Position( [ 2, 0 ], root ), new Position( [ 4, 1, 0 ], root ), 2, baseVersion ); let transOp = op.getTransformedBy( transformBy ); expected.sourcePosition.path[ 1 ] -= 2; expectOperation( transOp[ 0 ], expected ); } ); it( 'range after node from transforming range start path: no operation update', () => { let transformBy = new MoveOperation( new Position( [ 2, 3 ], root ), new Position( [ 4, 1, 0 ], root ), 2, baseVersion ); let transOp = op.getTransformedBy( transformBy ); expectOperation( transOp[ 0 ], expected ); } ); it( 'target offset before transforming target offset: increment target offset', () => { let transformBy = new MoveOperation( new Position( [ 4, 1, 0 ], root ), new Position( [ 3, 3, 0 ], root ), 2, baseVersion ); let transOp = op.getTransformedBy( transformBy ); expected.targetPosition.offset += 2; expectOperation( transOp[ 0 ], expected ); } ); it( 'target offset after transforming target offset: no operation update', () => { let transformBy = new MoveOperation( new Position( [ 4, 1, 0 ], root ), new Position( [ 3, 3, 5 ], root ), 2, baseVersion ); let transOp = op.getTransformedBy( transformBy ); expectOperation( transOp[ 0 ], expected ); } ); it( 'range offset before transforming target offset: decrement target offset', () => { let transformBy = new MoveOperation( new Position( [ 3, 3, 0 ], root ), new Position( [ 4, 1, 0 ], root ), 2, baseVersion ); let transOp = op.getTransformedBy( transformBy ); expected.targetPosition.offset -= 2; expectOperation( transOp[ 0 ], expected ); } ); it( 'range offset after transforming target offset: no operation update', () => { let transformBy = new MoveOperation( new Position( [ 3, 3, 5 ], root ), new Position( [ 4, 1, 0 ], root ), 2, baseVersion ); let transOp = op.getTransformedBy( transformBy ); expectOperation( transOp[ 0 ], expected ); } ); it( 'target before node from transforming target path: increment index on target path', () => { let transformBy = new MoveOperation( new Position( [ 4, 1, 0 ], root ), new Position( [ 3, 1 ], root ), 2, baseVersion ); let transOp = op.getTransformedBy( transformBy ); expected.targetPosition.path[ 1 ] += 2; expectOperation( transOp[ 0 ], expected ); } ); it( 'target after node from transforming target path: no operation update', () => { let transformBy = new MoveOperation( new Position( [ 4, 1, 0 ], root ), new Position( [ 3, 5 ], root ), 2, baseVersion ); let transOp = op.getTransformedBy( transformBy ); expectOperation( transOp[ 0 ], expected ); } ); it( 'range before node from transforming target path: decrement index on target path', () => { let transformBy = new MoveOperation( new Position( [ 3, 0 ], root ), new Position( [ 4, 1, 0 ], root ), 2, baseVersion ); let transOp = op.getTransformedBy( transformBy ); expected.targetPosition.path[ 1 ] -= 2; expectOperation( transOp[ 0 ], expected ); } ); it( 'range after node from transforming target path: no operation update', () => { let transformBy = new MoveOperation( new Position( [ 3, 5 ], root ), new Position( [ 4, 1, 0 ], root ), 2, baseVersion ); let transOp = op.getTransformedBy( transformBy ); expectOperation( transOp[ 0 ], expected ); } ); it( 'target inside transforming move range: split into two operations', () => { let transformBy = new MoveOperation( new Position( [ 4, 1, 0 ], root ), new Position( [ 2, 2, 5 ], root ), 2, baseVersion ); let transOp = op.getTransformedBy( transformBy ); expect( transOp ).to.be.instanceof( Array ); expect( transOp.length ).to.equal( 2 ); expected.howMany = 1; expected.sourcePosition.offset = 7; expectOperation( transOp[ 0 ], expected ); expected.sourcePosition.offset = 4; expected.baseVersion++; expectOperation( transOp[ 1 ], expected ); } ); it( 'target inside a node from transforming range: no operation update', () => { let transformBy = new MoveOperation( new Position( [ 4, 1, 0 ], root ), new Position( [ 2, 2, 5, 1 ], root ), 2, baseVersion ); let transOp = op.getTransformedBy( transformBy ); expectOperation( transOp[ 0 ], expected ); } ); it( 'range has node that contains transforming range: update range path', () => { let transformBy = new MoveOperation( new Position( [ 2, 1 ], root ), new Position( [ 4, 2 ], root ), 3, baseVersion ); let transOp = op.getTransformedBy( transformBy ); expected.sourcePosition.path = [ 4, 3, 4 ]; expectOperation( transOp[ 0 ], expected ); } ); it( 'range has node that contains transforming target: update target path', () => { let transformBy = new MoveOperation( new Position( [ 3, 2 ], root ), new Position( [ 0, 1 ], root ), 3, baseVersion ); let transOp = op.getTransformedBy( transformBy ); expected.targetPosition.path = [ 0, 2, 3 ]; expectOperation( transOp[ 0 ], expected ); } ); it( 'target inside a node from transforming range and vice versa: reverse transform-by operation', () => { let transformBy = new MoveOperation( new Position( [ 3, 2 ], root ), new Position( [ 2, 2, 5, 0 ], root ), 3, baseVersion ); let transOp = op.getTransformedBy( transformBy ); let reversed = transformBy.getReversed(); expected.sourcePosition = reversed.sourcePosition; expected.targetPosition = reversed.targetPosition; expected.howMany = reversed.howMany; expectOperation( transOp[ 0 ], expected ); } ); it( 'range is same as transforming range and is important: convert to NoOperation', () => { let transformBy = new MoveOperation( op.sourcePosition.clone(), new Position( [ 4, 1, 0 ], root ), op.howMany, baseVersion ); let transOp = op.getTransformedBy( transformBy ); expectOperation( transOp[ 0 ], { type: NoOperation, baseVersion: baseVersion + 1 } ); } ); it( 'range is same as transforming range and is less important: update range path', () => { let transformBy = new MoveOperation( op.sourcePosition.clone(), new Position( [ 4, 1, 0 ], root ), op.howMany, baseVersion ); let transOp = op.getTransformedBy( transformBy, true ); expected.sourcePosition.path = [ 4, 1, 0 ]; expectOperation( transOp[ 0 ], expected ); } ); it( 'range contains transforming range and is important: convert to NoOperation', () => { let transformBy = new MoveOperation( new Position( [ 2, 2, 3 ], root ), new Position( [ 4, 1, 0 ], root ), 4, baseVersion ); let transOp = op.getTransformedBy( transformBy ); expectOperation( transOp[ 0 ], { type: NoOperation, baseVersion: baseVersion + 1 } ); } ); it( 'range contains transforming range and is less important: update range path', () => { let transformBy = new MoveOperation( new Position( [ 2, 2, 3 ], root ), new Position( [ 4, 1, 0 ], root ), 4, baseVersion ); let transOp = op.getTransformedBy( transformBy, true ); expected.sourcePosition.path = [ 4, 1, 1 ]; expectOperation( transOp[ 0 ], expected ); } ); it( 'range intersects on left with transforming range and is important: shrink range', () => { let transformBy = new MoveOperation( new Position( [ 2, 2, 3 ], root ), new Position( [ 4, 1, 0 ], root ), 2, baseVersion ); let transOp = op.getTransformedBy( transformBy ); expected.sourcePosition.path = [ 2, 2, 3 ]; expected.howMany = 1; expectOperation( transOp[ 0 ], expected ); } ); it( 'range intersects on left with transforming range and is less important: split into two operations', () => { let transformBy = new MoveOperation( new Position( [ 2, 2, 3 ], root ), new Position( [ 4, 1, 0 ], root ), 2, baseVersion ); let transOp = op.getTransformedBy( transformBy, true ); expect( transOp ).to.be.instanceof( Array ); expect( transOp.length ).to.equal( 2 ); expected.sourcePosition.path = [ 2, 2, 3 ]; expectOperation( transOp[ 0 ], { type: MoveOperation, sourcePosition: new Position( [ 4, 1, 1 ], root ), targetPosition: expected.targetPosition, howMany: 1, baseVersion: expected.baseVersion } ); expected.howMany = 1; expected.baseVersion++; expectOperation( transOp[ 1 ], expected ); } ); it( 'range intersects on right with transforming range and is important: shrink range', () => { let transformBy = new MoveOperation( new Position( [ 2, 2, 5 ], root ), new Position( [ 4, 1, 0 ], root ), 2, baseVersion ); let transOp = op.getTransformedBy( transformBy ); expected.howMany = 1; expectOperation( transOp[ 0 ], expected ); } ); it( 'range intersects on right with transforming range and is less important: split into two operations', () => { let transformBy = new MoveOperation( new Position( [ 2, 2, 5 ], root ), new Position( [ 4, 1, 0 ], root ), 2, baseVersion ); let transOp = op.getTransformedBy( transformBy, true ); expect( transOp ).to.be.instanceof( Array ); expect( transOp.length ).to.equal( 2 ); expectOperation( transOp[ 0 ], { type: MoveOperation, sourcePosition: new Position( [ 4, 1, 0 ], root ), targetPosition: expected.targetPosition, howMany: 1, baseVersion: expected.baseVersion } ); expected.howMany = 1; expected.baseVersion++; expectOperation( transOp[ 1 ], expected ); } ); it( 'range inside transforming range and is important: shrink range', () => { op.howMany = 4; let transformBy = new MoveOperation( new Position( [ 2, 2, 5 ], root ), new Position( [ 4, 1, 0 ], root ), 2, baseVersion ); let transOp = op.getTransformedBy( transformBy ); expected.howMany = 2; expectOperation( transOp[ 0 ], expected ); } ); it( 'range inside transforming range and is less important: split into two operations', () => { op.howMany = 4; let transformBy = new MoveOperation( new Position( [ 2, 2, 5 ], root ), new Position( [ 4, 1, 0 ], root ), 2, baseVersion ); let transOp = op.getTransformedBy( transformBy, true ); expect( transOp ).to.be.instanceof( Array ); expect( transOp.length ).to.equal( 2 ); expectOperation( transOp[ 0 ], { type: MoveOperation, sourcePosition: new Position( [ 4, 1, 0 ], root ), targetPosition: expected.targetPosition, howMany: 2, baseVersion: expected.baseVersion } ); expected.howMany = 2; expected.baseVersion++; expectOperation( transOp[ 1 ], expected ); } ); it( 'range and target inside transforming range and is less important: split into three operations', () => { op.howMany = 6; let transformBy = new MoveOperation( new Position( [ 2, 2, 5 ], root ), new Position( [ 2, 2, 9 ], root ), 2, baseVersion ); let transOp = op.getTransformedBy( transformBy, true ); expect( transOp ).to.be.instanceof( Array ); expect( transOp.length ).to.equal( 3 ); expected.sourcePosition.path = [ 2, 2, 9 ]; expected.howMany = 1; expectOperation( transOp[ 0 ], expected ); expected.sourcePosition.path = [ 2, 2, 7 ]; expected.howMany = 2; expected.baseVersion++; expectOperation( transOp[ 1 ], expected ); expected.sourcePosition.path = [ 2, 2, 4 ]; expected.howMany = 3; expected.baseVersion++; expectOperation( transOp[ 2 ], expected ); } ); } ); describe( 'NoOperation', () => { it( 'no operation update', () => { let transformBy = new NoOperation( baseVersion ); let transOp = op.getTransformedBy( transformBy ); expectOperation( transOp[ 0 ], expected ); } ); } ); } ); } );