removeoperation.js 5.7 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 Document from '../../../src/model/document';
  6. import ReinsertOperation from '../../../src/model/operation/reinsertoperation';
  7. import RemoveOperation from '../../../src/model/operation/removeoperation';
  8. import MoveOperation from '../../../src/model/operation/moveoperation';
  9. import Position from '../../../src/model/position';
  10. import Text from '../../../src/model/text';
  11. import Element from '../../../src/model/element';
  12. import { jsonParseStringify, wrapInDelta } from '../../../tests/model/_utils/utils';
  13. describe( 'RemoveOperation', () => {
  14. let doc, root, graveyard;
  15. beforeEach( () => {
  16. doc = new Document();
  17. root = doc.createRoot();
  18. graveyard = doc.graveyard;
  19. } );
  20. it( 'should have proper type', () => {
  21. const op = new RemoveOperation(
  22. new Position( root, [ 2 ] ),
  23. 2,
  24. doc.version
  25. );
  26. expect( op.type ).to.equal( 'remove' );
  27. } );
  28. it( 'should not be sticky', () => {
  29. const op = new RemoveOperation(
  30. new Position( root, [ 2 ] ),
  31. 2,
  32. doc.version
  33. );
  34. expect( op.isSticky ).to.be.false;
  35. } );
  36. it( 'should extend MoveOperation class', () => {
  37. const operation = new RemoveOperation(
  38. new Position( root, [ 2 ] ),
  39. 2,
  40. doc.version
  41. );
  42. expect( operation ).to.be.instanceof( MoveOperation );
  43. } );
  44. it( 'should be able to remove set of nodes and append them to holder element in graveyard root', () => {
  45. root.insertChildren( 0, new Text( 'fozbar' ) );
  46. doc.applyOperation( wrapInDelta(
  47. new RemoveOperation(
  48. new Position( root, [ 2 ] ),
  49. 2,
  50. doc.version
  51. )
  52. ) );
  53. expect( doc.version ).to.equal( 1 );
  54. expect( root.maxOffset ).to.equal( 4 );
  55. expect( root.getChild( 0 ).data ).to.equal( 'foar' );
  56. expect( graveyard.maxOffset ).to.equal( 1 );
  57. expect( graveyard.getChild( 0 ).getChild( 0 ).data ).to.equal( 'zb' );
  58. } );
  59. it( 'should be able to remove set of nodes and append them to existing element in graveyard root', () => {
  60. root.insertChildren( 0, new Text( 'fozbar' ) );
  61. graveyard.appendChildren( new Element( '$graveyardHolder' ) );
  62. const op = new RemoveOperation(
  63. new Position( root, [ 0 ] ),
  64. 1,
  65. doc.version
  66. );
  67. // Manually set holder element properties.
  68. op._needsHolderElement = false;
  69. op._holderElementOffset = 0;
  70. doc.applyOperation( wrapInDelta( op ) );
  71. expect( graveyard.maxOffset ).to.equal( 1 );
  72. expect( graveyard.getChild( 0 ).getChild( 0 ).data ).to.equal( 'f' );
  73. } );
  74. it( 'should create RemoveOperation with same parameters when cloned', () => {
  75. const pos = new Position( root, [ 2 ] );
  76. const operation = new RemoveOperation( pos, 2, doc.version );
  77. const clone = operation.clone();
  78. expect( clone ).to.be.instanceof( RemoveOperation );
  79. expect( clone.sourcePosition.isEqual( pos ) ).to.be.true;
  80. expect( clone.howMany ).to.equal( operation.howMany );
  81. expect( clone.baseVersion ).to.equal( operation.baseVersion );
  82. } );
  83. it( 'should create a ReinsertOperation as a reverse', () => {
  84. const position = new Position( root, [ 0 ] );
  85. const operation = new RemoveOperation( position, 2, 0 );
  86. const reverse = operation.getReversed();
  87. expect( reverse ).to.be.an.instanceof( ReinsertOperation );
  88. expect( reverse.baseVersion ).to.equal( 1 );
  89. expect( reverse.howMany ).to.equal( 2 );
  90. expect( reverse.sourcePosition.isEqual( operation.targetPosition ) ).to.be.true;
  91. expect( reverse.targetPosition.isEqual( position ) ).to.be.true;
  92. } );
  93. it( 'should undo remove set of nodes by applying reverse operation', () => {
  94. const position = new Position( root, [ 0 ] );
  95. const operation = new RemoveOperation( position, 3, 0 );
  96. const reverse = operation.getReversed();
  97. root.insertChildren( 0, new Text( 'bar' ) );
  98. doc.applyOperation( wrapInDelta( operation ) );
  99. expect( doc.version ).to.equal( 1 );
  100. expect( root.maxOffset ).to.equal( 0 );
  101. doc.applyOperation( wrapInDelta( reverse ) );
  102. expect( doc.version ).to.equal( 2 );
  103. expect( root.maxOffset ).to.equal( 3 );
  104. expect( root.getChild( 0 ).data ).to.equal( 'bar' );
  105. } );
  106. it( 'should properly remove a node that is already in a graveyard', () => {
  107. doc.graveyard.appendChildren( new Element( '$graveyardHolder', {}, [ new Text( 'foo' ) ] ) );
  108. const position = new Position( doc.graveyard, [ 0, 0 ] );
  109. const operation = new RemoveOperation( position, 1, 0 );
  110. operation.targetPosition.path = [ 0, 0 ];
  111. doc.applyOperation( wrapInDelta( operation ) );
  112. expect( doc.graveyard.childCount ).to.equal( 2 );
  113. expect( doc.graveyard.getChild( 0 ).getChild( 0 ).data ).to.equal( 'f' );
  114. expect( doc.graveyard.getChild( 1 ).getChild( 0 ).data ).to.equal( 'oo' );
  115. } );
  116. describe( 'toJSON', () => {
  117. it( 'should create proper json object', () => {
  118. const op = new RemoveOperation(
  119. new Position( root, [ 2 ] ),
  120. 2,
  121. doc.version
  122. );
  123. op._needsHolderElement = false;
  124. const serialized = jsonParseStringify( op );
  125. expect( serialized ).to.deep.equal( {
  126. __className: 'engine.model.operation.RemoveOperation',
  127. baseVersion: 0,
  128. howMany: 2,
  129. isSticky: false,
  130. sourcePosition: jsonParseStringify( op.sourcePosition ),
  131. targetPosition: jsonParseStringify( op.targetPosition ),
  132. _needsHolderElement: false
  133. } );
  134. } );
  135. } );
  136. describe( 'fromJSON', () => {
  137. it( 'should create proper RemoveOperation from json object', () => {
  138. const op = new RemoveOperation(
  139. new Position( root, [ 2 ] ),
  140. 2,
  141. doc.version
  142. );
  143. op._needsHolderElement = false;
  144. doc.graveyard.appendChildren( [ new Element( '$graveyardHolder' ), new Element( '$graveyardHolder' ) ] );
  145. const serialized = jsonParseStringify( op );
  146. const deserialized = RemoveOperation.fromJSON( serialized, doc );
  147. expect( deserialized ).to.deep.equal( op );
  148. } );
  149. } );
  150. } );