removedelta.js 4.6 KB

123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147148149150151152153154155156157158
  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;
  26. beforeEach( () => {
  27. doc = getFilledDocument();
  28. root = doc.getRoot();
  29. gy = doc.graveyard;
  30. baseVersion = doc.version;
  31. } );
  32. describe( 'RemoveDelta by', () => {
  33. describe( 'MergeDelta', () => {
  34. it( 'node on the right side of merge was removed', () => {
  35. // This special case should be handled by MoveDelta x MergeDelta special case.
  36. const sourcePosition = new Position( root, [ 3, 3, 3 ] );
  37. const removeDelta = getRemoveDelta( sourcePosition, 1, baseVersion );
  38. const mergePosition = new Position( root, [ 3, 3, 3 ] );
  39. const mergeDelta = getMergeDelta( mergePosition, 4, 12, baseVersion );
  40. const transformed = transform( removeDelta, mergeDelta );
  41. expect( transformed.length ).to.equal( 2 );
  42. baseVersion = mergeDelta.operations.length;
  43. expectDelta( transformed[ 0 ], {
  44. type: SplitDelta,
  45. operations: [
  46. {
  47. type: MoveOperation,
  48. sourcePosition: new Position( gy, [ 0 ] ),
  49. howMany: 1,
  50. targetPosition: new Position( root, [ 3, 3, 3 ] ),
  51. baseVersion
  52. },
  53. {
  54. type: MoveOperation,
  55. sourcePosition: new Position( root, [ 3, 3, 2, 4 ] ),
  56. howMany: 12,
  57. targetPosition: new Position( root, [ 3, 3, 3, 0 ] ),
  58. baseVersion: baseVersion + 1
  59. }
  60. ]
  61. } );
  62. expectDelta( transformed[ 1 ], {
  63. type: RemoveDelta,
  64. operations: [
  65. {
  66. type: MoveOperation,
  67. sourcePosition: removeDelta._moveOperation.sourcePosition,
  68. howMany: removeDelta._moveOperation.howMany,
  69. baseVersion: baseVersion + 2
  70. }
  71. ]
  72. } );
  73. // Test if deltas do what they should after applying transformed delta.
  74. applyDelta( mergeDelta, doc );
  75. applyDelta( transformed[ 0 ], doc );
  76. applyDelta( transformed[ 1 ], doc );
  77. const nodesAndText = getNodesAndText( Range.createFromPositionAndShift( new Position( root, [ 3, 3 ] ), 1 ) );
  78. // RemoveDelta is applied. MergeDelta is discarded.
  79. expect( nodesAndText ).to.equal( 'DIVXXXXXabcdXDIV' );
  80. } );
  81. } );
  82. describe( 'SplitDelta', () => {
  83. it( 'node inside the removed range was a node that has been split', () => {
  84. const sourcePosition = new Position( root, [ 3, 3, 1 ] );
  85. const removeDelta = getRemoveDelta( sourcePosition, 3, baseVersion );
  86. const splitPosition = new Position( root, [ 3, 3, 2, 2 ] );
  87. const nodeCopy = new Element( 'x' );
  88. const splitDelta = getSplitDelta( splitPosition, nodeCopy, 2, baseVersion );
  89. const transformed = transform( removeDelta, splitDelta );
  90. expect( transformed.length ).to.equal( 1 );
  91. baseVersion = splitDelta.operations.length;
  92. expectDelta( transformed[ 0 ], {
  93. type: RemoveDelta,
  94. operations: [
  95. {
  96. type: RemoveOperation,
  97. sourcePosition,
  98. howMany: 4,
  99. baseVersion
  100. }
  101. ]
  102. } );
  103. } );
  104. it( 'last node in the removed range was a node that has been split', () => {
  105. const sourcePosition = new Position( root, [ 3, 2 ] );
  106. const removeDelta = getRemoveDelta( sourcePosition, 2, baseVersion );
  107. const splitPosition = new Position( root, [ 3, 3, 2 ] );
  108. const nodeCopy = new Element( 'div' );
  109. const splitDelta = getSplitDelta( splitPosition, nodeCopy, 2, baseVersion );
  110. const transformed = transform( removeDelta, splitDelta );
  111. expect( transformed.length ).to.equal( 1 );
  112. baseVersion = splitDelta.operations.length;
  113. expectDelta( transformed[ 0 ], {
  114. type: RemoveDelta,
  115. operations: [
  116. {
  117. type: RemoveOperation,
  118. sourcePosition,
  119. howMany: 3,
  120. baseVersion
  121. }
  122. ]
  123. } );
  124. } );
  125. } );
  126. } );
  127. } );