removedelta.js 4.7 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 Element from '../../../../src/model/element';
  9. import Position from '../../../../src/model/position';
  10. import Range from '../../../../src/model/range';
  11. import RemoveDelta from '../../../../src/model/delta/removedelta';
  12. import SplitDelta from '../../../../src/model/delta/splitdelta';
  13. import MoveOperation from '../../../../src/model/operation/moveoperation';
  14. import RemoveOperation from '../../../../src/model/operation/removeoperation';
  15. import { getNodesAndText } from '../../../../tests/model/_utils/utils';
  16. import {
  17. applyDelta,
  18. expectDelta,
  19. getFilledDocument,
  20. getMergeDelta,
  21. getRemoveDelta,
  22. getSplitDelta
  23. } from '../../../../tests/model/delta/transform/_utils/utils';
  24. describe( 'transform', () => {
  25. let doc, root, gy, baseVersion, context;
  26. beforeEach( () => {
  27. doc = getFilledDocument();
  28. root = doc.getRoot();
  29. gy = doc.graveyard;
  30. baseVersion = doc.version;
  31. context = { isStrong: false };
  32. } );
  33. describe( 'RemoveDelta by', () => {
  34. describe( 'MergeDelta', () => {
  35. it( 'node on the right side of merge was removed', () => {
  36. // This special case should be handled by MoveDelta x MergeDelta special case.
  37. const sourcePosition = new Position( root, [ 3, 3, 3 ] );
  38. const removeDelta = getRemoveDelta( sourcePosition, 1, baseVersion );
  39. const mergePosition = new Position( root, [ 3, 3, 3 ] );
  40. const mergeDelta = getMergeDelta( mergePosition, 4, 12, baseVersion );
  41. const transformed = transform( removeDelta, mergeDelta, context );
  42. expect( transformed.length ).to.equal( 2 );
  43. baseVersion = mergeDelta.operations.length;
  44. expectDelta( transformed[ 0 ], {
  45. type: SplitDelta,
  46. operations: [
  47. {
  48. type: MoveOperation,
  49. sourcePosition: new Position( gy, [ 0 ] ),
  50. howMany: 1,
  51. targetPosition: new Position( root, [ 3, 3, 3 ] ),
  52. baseVersion
  53. },
  54. {
  55. type: MoveOperation,
  56. sourcePosition: new Position( root, [ 3, 3, 2, 4 ] ),
  57. howMany: 12,
  58. targetPosition: new Position( root, [ 3, 3, 3, 0 ] ),
  59. baseVersion: baseVersion + 1
  60. }
  61. ]
  62. } );
  63. expectDelta( transformed[ 1 ], {
  64. type: RemoveDelta,
  65. operations: [
  66. {
  67. type: MoveOperation,
  68. sourcePosition: removeDelta._moveOperation.sourcePosition,
  69. howMany: removeDelta._moveOperation.howMany,
  70. baseVersion: baseVersion + 2
  71. }
  72. ]
  73. } );
  74. // Test if deltas do what they should after applying transformed delta.
  75. applyDelta( mergeDelta, doc );
  76. applyDelta( transformed[ 0 ], doc );
  77. applyDelta( transformed[ 1 ], doc );
  78. const nodesAndText = getNodesAndText( Range.createFromPositionAndShift( new Position( root, [ 3, 3 ] ), 1 ) );
  79. // RemoveDelta is applied. MergeDelta is discarded.
  80. expect( nodesAndText ).to.equal( 'DIVXXXXXabcdXDIV' );
  81. } );
  82. } );
  83. describe( 'SplitDelta', () => {
  84. it( 'node inside the removed range was a node that has been split', () => {
  85. const sourcePosition = new Position( root, [ 3, 3, 1 ] );
  86. const removeDelta = getRemoveDelta( sourcePosition, 3, baseVersion );
  87. const splitPosition = new Position( root, [ 3, 3, 2, 2 ] );
  88. const nodeCopy = new Element( 'x' );
  89. const splitDelta = getSplitDelta( splitPosition, nodeCopy, 2, baseVersion );
  90. const transformed = transform( removeDelta, splitDelta, context );
  91. expect( transformed.length ).to.equal( 1 );
  92. baseVersion = splitDelta.operations.length;
  93. expectDelta( transformed[ 0 ], {
  94. type: RemoveDelta,
  95. operations: [
  96. {
  97. type: RemoveOperation,
  98. sourcePosition,
  99. howMany: 4,
  100. baseVersion
  101. }
  102. ]
  103. } );
  104. } );
  105. it( 'last node in the removed range was a node that has been split', () => {
  106. const sourcePosition = new Position( root, [ 3, 2 ] );
  107. const removeDelta = getRemoveDelta( sourcePosition, 2, baseVersion );
  108. const splitPosition = new Position( root, [ 3, 3, 2 ] );
  109. const nodeCopy = new Element( 'div' );
  110. const splitDelta = getSplitDelta( splitPosition, nodeCopy, 2, baseVersion );
  111. const transformed = transform( removeDelta, splitDelta, context );
  112. expect( transformed.length ).to.equal( 1 );
  113. baseVersion = splitDelta.operations.length;
  114. expectDelta( transformed[ 0 ], {
  115. type: RemoveDelta,
  116. operations: [
  117. {
  118. type: RemoveOperation,
  119. sourcePosition,
  120. howMany: 3,
  121. baseVersion
  122. }
  123. ]
  124. } );
  125. } );
  126. } );
  127. } );
  128. } );