/** * @license Copyright (c) 2003-2017, CKSource - Frederico Knabben. All rights reserved. * For licensing, see LICENSE.md. */ import transformations from '../../../../src/model/delta/basic-transformations'; // eslint-disable-line no-unused-vars import deltaTransform from '../../../../src/model/delta/transform'; const transform = deltaTransform.transform; import Element from '../../../../src/model/element'; import Position from '../../../../src/model/position'; import Range from '../../../../src/model/range'; import Delta from '../../../../src/model/delta/delta'; import MergeDelta from '../../../../src/model/delta/mergedelta'; import MoveOperation from '../../../../src/model/operation/moveoperation'; import RemoveOperation from '../../../../src/model/operation/removeoperation'; import NoOperation from '../../../../src/model/operation/nooperation'; import { getNodesAndText } from '../../../../tests/model/_utils/utils'; import { applyDelta, expectDelta, getFilledDocument, getInsertDelta, getMergeDelta, getMoveDelta } from '../../../../tests/model/delta/transform/_utils/utils'; describe( 'transform', () => { let doc, root, gy, baseVersion, context; beforeEach( () => { doc = getFilledDocument(); root = doc.getRoot(); gy = doc.graveyard; baseVersion = doc.version; context = { isStrong: false }; } ); describe( 'MergeDelta by', () => { let mergeDelta, mergePosition; beforeEach( () => { mergePosition = new Position( root, [ 3, 3, 3 ] ); mergeDelta = getMergeDelta( mergePosition, 4, 12, baseVersion ); } ); describe( 'InsertDelta', () => { let nodeA, nodeB; beforeEach( () => { nodeA = new Element( 'a' ); nodeB = new Element( 'b' ); } ); it( 'insert at same position as merge', () => { const insertDelta = getInsertDelta( mergePosition, [ nodeA, nodeB ], baseVersion ); const transformed = transform( mergeDelta, insertDelta, context ); // Expected: MergeDelta gets ignored and is not applied. baseVersion = insertDelta.operations.length; expect( transformed.length ).to.equal( 1 ); expectDelta( transformed[ 0 ], { type: Delta, operations: [ { type: NoOperation, baseVersion } ] } ); // Test if deltas do what they should after applying transformed delta. applyDelta( insertDelta, doc ); applyDelta( transformed[ 0 ], doc ); const nodesAndText = getNodesAndText( Range.createFromPositionAndShift( new Position( root, [ 3, 3, 0 ] ), 6 ) ); // InsertDelta is applied. Merge between X and P is discarded. expect( nodesAndText ).to.equal( 'XXXXXabcdXAABBPabcfoobarxyzP' ); } ); it( 'insert inside merged node (sticky move test)', () => { const insertDelta = getInsertDelta( new Position( root, [ 3, 3, 3, 12 ] ), [ nodeA, nodeB ], baseVersion ); const transformed = transform( mergeDelta, insertDelta, context ); baseVersion = insertDelta.operations.length; expect( transformed.length ).to.equal( 1 ); // Expected: MoveOperation in MergeDelta has it's "range" expanded. expectDelta( transformed[ 0 ], { type: MergeDelta, operations: [ { type: MoveOperation, sourcePosition: new Position( root, [ 3, 3, 3, 0 ] ), howMany: 14, targetPosition: new Position( root, [ 3, 3, 2, 4 ] ), baseVersion }, { type: RemoveOperation, sourcePosition: new Position( root, [ 3, 3, 3 ] ), howMany: 1, targetPosition: new Position( gy, [ 0 ] ), baseVersion: baseVersion + 1 } ] } ); // Test if deltas do what they should after applying transformed delta. applyDelta( insertDelta, doc ); applyDelta( transformed[ 0 ], doc ); const nodesAndText = getNodesAndText( Range.createFromPositionAndShift( new Position( root, [ 3, 3, 0 ] ), 3 ) ); // InsertDelta is applied. Merge between X and P is discarded. expect( nodesAndText ).to.equal( 'XXXXXabcdabcfoobarxyzAABBX' ); } ); } ); describe( 'MoveDelta', () => { it( 'node on the right side of merge was moved', () => { const moveDelta = getMoveDelta( new Position( root, [ 3, 3, 3 ] ), 1, new Position( root, [ 3, 3, 0 ] ), baseVersion ); const transformed = transform( mergeDelta, moveDelta, context ); baseVersion = moveDelta.operations.length; expect( transformed.length ).to.equal( 1 ); expectDelta( transformed[ 0 ], { type: Delta, operations: [ { type: NoOperation, baseVersion } ] } ); // Test if deltas do what they should after applying transformed delta. applyDelta( moveDelta, doc ); applyDelta( transformed[ 0 ], doc ); const nodesAndText = getNodesAndText( Range.createFromPositionAndShift( new Position( root, [ 3, 3 ] ), 1 ) ); // MoveDelta is applied. MergeDelta is discarded. expect( nodesAndText ).to.equal( 'DIVPabcfoobarxyzPXXXXXabcdXDIV' ); } ); it( 'node on the left side of merge was moved', () => { const moveDelta = getMoveDelta( new Position( root, [ 3, 3, 2 ] ), 1, new Position( root, [ 3, 3, 0 ] ), baseVersion ); const transformed = transform( mergeDelta, moveDelta, context ); expect( transformed.length ).to.equal( 1 ); baseVersion = moveDelta.operations.length; expectDelta( transformed[ 0 ], { type: MergeDelta, operations: [ { type: MoveOperation, sourcePosition: new Position( root, [ 3, 3, 3, 0 ] ), howMany: 12, targetPosition: new Position( root, [ 3, 3, 0, 4 ] ), baseVersion }, { type: RemoveOperation, sourcePosition: new Position( root, [ 3, 3, 3 ] ), howMany: 1, baseVersion: baseVersion + 1 } ] } ); // Test if deltas do what they should after applying transformed delta. applyDelta( moveDelta, doc ); applyDelta( transformed[ 0 ], doc ); const nodesAndText = getNodesAndText( Range.createFromPositionAndShift( new Position( root, [ 3, 3 ] ), 1 ) ); // MoveDelta is applied. MergeDelta is discarded. expect( nodesAndText ).to.equal( 'DIVXabcdabcfoobarxyzXXXXXDIV' ); } ); } ); describe( 'MergeDelta', () => { it( 'merge two consecutive elements, transformed merge is after', () => { const mergeDeltaB = getMergeDelta( new Position( root, [ 3, 3, 2 ] ), 0, 4, baseVersion ); const transformed = transform( mergeDelta, mergeDeltaB, context ); expect( transformed.length ).to.equal( 1 ); baseVersion = mergeDelta.operations.length; expectDelta( transformed[ 0 ], { type: MergeDelta, operations: [ { type: MoveOperation, sourcePosition: new Position( root, [ 3, 3, 2, 0 ] ), howMany: 12, targetPosition: new Position( root, [ 3, 3, 1, 4 ] ), baseVersion }, { type: RemoveOperation, sourcePosition: new Position( root, [ 3, 3, 2 ] ), howMany: 1 } ] } ); // Test if deltas do what they should after applying transformed delta. applyDelta( mergeDeltaB, doc ); applyDelta( transformed[ 0 ], doc ); const nodesAndText = getNodesAndText( Range.createFromPositionAndShift( new Position( root, [ 3, 3, 0 ] ), 2 ) ); // Both merge deltas are applied and merged nodes children are together in one node. expect( nodesAndText ).to.equal( 'XXXabcdabcfoobarxyzX' ); } ); it( 'merge two consecutive elements, transformed merge is before', () => { mergeDelta = getMergeDelta( new Position( root, [ 3, 3, 2 ] ), 0, 4, baseVersion ); const mergeDeltaB = getMergeDelta( new Position( root, [ 3, 3, 3 ] ), 4, 12, baseVersion ); const transformed = transform( mergeDelta, mergeDeltaB, context ); expect( transformed.length ).to.equal( 1 ); baseVersion = mergeDelta.operations.length; expectDelta( transformed[ 0 ], { type: MergeDelta, operations: [ { type: MoveOperation, sourcePosition: new Position( root, [ 3, 3, 2, 0 ] ), howMany: 16, targetPosition: new Position( root, [ 3, 3, 1, 0 ] ), baseVersion }, { type: RemoveOperation, sourcePosition: new Position( root, [ 3, 3, 2 ] ), howMany: 1 } ] } ); // Test if deltas do what they should after applying transformed delta. applyDelta( mergeDeltaB, doc ); applyDelta( transformed[ 0 ], doc ); const nodesAndText = getNodesAndText( Range.createFromPositionAndShift( new Position( root, [ 3, 3, 0 ] ), 2 ) ); // Both merge deltas are applied and merged nodes children are together in one node. expect( nodesAndText ).to.equal( 'XXXabcdabcfoobarxyzX' ); } ); } ); } ); } );