mergedelta.js 3.1 KB

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  1. /**
  2. * @license Copyright (c) 2003-2017, CKSource - Frederico Knabben. All rights reserved.
  3. * For licensing, see LICENSE.md.
  4. */
  5. import Document from '../../../src/model/document';
  6. import Position from '../../../src/model/position';
  7. import MergeDelta from '../../../src/model/delta/mergedelta';
  8. import SplitDelta from '../../../src/model/delta/splitdelta';
  9. import MoveOperation from '../../../src/model/operation/moveoperation';
  10. import RemoveOperation from '../../../src/model/operation/removeoperation';
  11. import ReinsertOperation from '../../../src/model/operation/reinsertoperation';
  12. describe( 'MergeDelta', () => {
  13. let mergeDelta, doc, root;
  14. beforeEach( () => {
  15. doc = new Document();
  16. root = doc.createRoot();
  17. mergeDelta = new MergeDelta();
  18. } );
  19. describe( 'constructor()', () => {
  20. it( 'should create merge delta with no operations added', () => {
  21. expect( mergeDelta.operations.length ).to.equal( 0 );
  22. } );
  23. } );
  24. describe( 'type', () => {
  25. it( 'should be equal to merge', () => {
  26. expect( mergeDelta.type ).to.equal( 'merge' );
  27. } );
  28. } );
  29. describe( 'position', () => {
  30. it( 'should be null if there are no operations in delta', () => {
  31. expect( mergeDelta.position ).to.be.null;
  32. } );
  33. it( 'should be equal to the position between merged nodes', () => {
  34. mergeDelta.operations.push( new MoveOperation( new Position( root, [ 1, 2, 0 ] ), 4, new Position( root, [ 1, 1, 4 ] ) ) );
  35. mergeDelta.operations.push( new RemoveOperation( new Position( root, [ 1, 2, 0 ] ), 1, new Position( doc.graveyard, [ 0 ] ) ) );
  36. expect( mergeDelta.position.root ).to.equal( root );
  37. expect( mergeDelta.position.path ).to.deep.equal( [ 1, 2, 0 ] );
  38. } );
  39. } );
  40. describe( 'getReversed', () => {
  41. it( 'should return empty SplitDelta if there are no operations in delta', () => {
  42. const reversed = mergeDelta.getReversed();
  43. expect( reversed ).to.be.instanceof( SplitDelta );
  44. expect( reversed.operations.length ).to.equal( 0 );
  45. } );
  46. it( 'should return correct SplitDelta', () => {
  47. mergeDelta.operations.push( new MoveOperation( new Position( root, [ 1, 2, 0 ] ), 4, new Position( root, [ 1, 1, 4 ] ) ) );
  48. mergeDelta.operations.push( new RemoveOperation( new Position( root, [ 1, 2, 0 ] ), 1, new Position( doc.graveyard, [ 0 ] ) ) );
  49. const reversed = mergeDelta.getReversed();
  50. expect( reversed ).to.be.instanceof( SplitDelta );
  51. expect( reversed.operations.length ).to.equal( 2 );
  52. expect( reversed.operations[ 0 ] ).to.be.instanceof( ReinsertOperation );
  53. expect( reversed.operations[ 0 ].howMany ).to.equal( 1 );
  54. expect( reversed.operations[ 0 ].targetPosition.path ).to.deep.equal( [ 1, 2, 0 ] );
  55. expect( reversed.operations[ 1 ] ).to.be.instanceof( MoveOperation );
  56. expect( reversed.operations[ 1 ].sourcePosition.path ).to.deep.equal( [ 1, 1, 4 ] );
  57. expect( reversed.operations[ 1 ].howMany ).to.equal( 4 );
  58. expect( reversed.operations[ 1 ].targetPosition.path ).to.deep.equal( [ 1, 2, 0 ] );
  59. } );
  60. } );
  61. it( 'should provide proper className', () => {
  62. expect( MergeDelta.className ).to.equal( 'engine.model.delta.MergeDelta' );
  63. } );
  64. } );