movedelta.js 4.2 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 transformations from '../../../../src/model/delta/basic-transformations'; // eslint-disable-line no-unused-vars
  6. import deltaTransform from '../../../../src/model/delta/transform';
  7. const transform = deltaTransform.transform;
  8. import Position from '../../../../src/model/position';
  9. import Range from '../../../../src/model/range';
  10. import MoveDelta from '../../../../src/model/delta/movedelta';
  11. import SplitDelta from '../../../../src/model/delta/splitdelta';
  12. import MoveOperation from '../../../../src/model/operation/moveoperation';
  13. import { getNodesAndText } from '../../../../tests/model/_utils/utils';
  14. import {
  15. applyDelta,
  16. expectDelta,
  17. getFilledDocument,
  18. getMergeDelta,
  19. getMoveDelta
  20. } from '../../../../tests/model/delta/transform/_utils/utils';
  21. describe( 'transform', () => {
  22. let doc, root, gy, baseVersion;
  23. beforeEach( () => {
  24. doc = getFilledDocument();
  25. root = doc.getRoot();
  26. gy = doc.graveyard;
  27. baseVersion = doc.version;
  28. } );
  29. describe( 'MoveDelta by', () => {
  30. let moveDelta;
  31. beforeEach( () => {
  32. const sourcePosition = new Position( root, [ 3, 3, 3 ] );
  33. const howMany = 1;
  34. const targetPosition = new Position( root, [ 3, 3, 0 ] );
  35. moveDelta = getMoveDelta( sourcePosition, howMany, targetPosition, baseVersion );
  36. } );
  37. describe( 'MergeDelta', () => {
  38. it( 'node on the right side of merge was moved', () => {
  39. const mergePosition = new Position( root, [ 3, 3, 3 ] );
  40. const mergeDelta = getMergeDelta( mergePosition, 4, 12, baseVersion );
  41. const transformed = transform( moveDelta, mergeDelta );
  42. expect( transformed.length ).to.equal( 2 );
  43. baseVersion = mergeDelta.operations.length;
  44. expectDelta( transformed[ 0 ], {
  45. type: SplitDelta,
  46. operations: [
  47. {
  48. // This `SplitDelta` got created through reversing `MergeDelta`. It means that operations in
  49. // a `MergeDelta` had been reversed. One of them is `RemoveOperation` which got reversed into
  50. // `ReinsertOperation` because we want to get back the node from graveyard. `ReinsertOperation`
  51. // is treated in OT as `MoveOperation` and might be converted to it. This is why we have to
  52. // check whether the operation type is `MoveOperation`. This is all perfectly valid.
  53. type: MoveOperation,
  54. sourcePosition: new Position( gy, [ 0 ] ),
  55. howMany: 1,
  56. targetPosition: new Position( root, [ 3, 3, 3 ] ),
  57. baseVersion
  58. },
  59. {
  60. type: MoveOperation,
  61. sourcePosition: new Position( root, [ 3, 3, 2, 4 ] ),
  62. howMany: 12,
  63. targetPosition: new Position( root, [ 3, 3, 3, 0 ] ),
  64. baseVersion: baseVersion + 1
  65. }
  66. ]
  67. } );
  68. expectDelta( transformed[ 1 ], {
  69. type: MoveDelta,
  70. operations: [
  71. {
  72. type: MoveOperation,
  73. sourcePosition: moveDelta._moveOperation.sourcePosition,
  74. howMany: moveDelta._moveOperation.howMany,
  75. targetPosition: moveDelta._moveOperation.targetPosition,
  76. baseVersion: baseVersion + 2
  77. }
  78. ]
  79. } );
  80. // Test if deltas do what they should after applying transformed delta.
  81. applyDelta( mergeDelta, doc );
  82. applyDelta( transformed[ 0 ], doc );
  83. applyDelta( transformed[ 1 ], doc );
  84. const nodesAndText = getNodesAndText( Range.createFromPositionAndShift( new Position( root, [ 3, 3 ] ), 1 ) );
  85. // MoveDelta is applied. MergeDelta is discarded.
  86. expect( nodesAndText ).to.equal( 'DIVPabcfoobarxyzPXXXXXabcdXDIV' );
  87. } );
  88. it( 'move range in merged node', () => {
  89. const mergePosition = new Position( root, [ 3, 3 ] );
  90. const mergeDelta = getMergeDelta( mergePosition, 1, 4, baseVersion );
  91. const transformed = transform( moveDelta, mergeDelta );
  92. expect( transformed.length ).to.equal( 1 );
  93. baseVersion = mergeDelta.operations.length;
  94. expectDelta( transformed[ 0 ], {
  95. type: MoveDelta,
  96. operations: [
  97. {
  98. type: MoveOperation,
  99. sourcePosition: new Position( root, [ 3, 2, 4 ] ),
  100. howMany: 1,
  101. targetPosition: new Position( root, [ 3, 2, 1 ] ),
  102. baseVersion
  103. }
  104. ]
  105. } );
  106. } );
  107. } );
  108. } );
  109. } );