delta.js 2.2 KB

12345678910111213141516171819202122232425262728293031323334353637383940414243444546474849505152535455565758596061626364656667686970717273747576777879808182
  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';
  6. /*jshint unused: false*/
  7. import deltaTransform from '../../../../src/model/delta/transform';
  8. const transform = deltaTransform.transform;
  9. import Position from '../../../../src/model/position';
  10. import MoveOperation from '../../../../src/model/operation/moveoperation';
  11. import Delta from '../../../../src/model/delta/delta';
  12. import {
  13. expectDelta,
  14. getFilledDocument,
  15. } from '../../../../tests/model/delta/transform/_utils/utils';
  16. describe( 'Delta', () => {
  17. let doc, root, baseVersion;
  18. beforeEach( () => {
  19. doc = getFilledDocument();
  20. root = doc.getRoot();
  21. baseVersion = doc.version;
  22. } );
  23. it( 'should have baseVersion property, equal to the baseVersion of first operation in Delta or null', () => {
  24. let deltaA = new Delta();
  25. expect( deltaA.baseVersion ).to.be.null;
  26. let version = 5;
  27. deltaA.addOperation( new MoveOperation( new Position( root, [ 1, 2, 3 ] ), 4, new Position( root, [ 4, 0 ] ), version ) );
  28. expect( deltaA.baseVersion ).to.equal( 5 );
  29. } );
  30. it( 'should be transformable by another Delta', () => {
  31. let deltaA = new Delta();
  32. let deltaB = new Delta();
  33. deltaA.addOperation( new MoveOperation( new Position( root, [ 1, 2, 3 ] ), 4, new Position( root, [ 4, 0 ] ), baseVersion ) );
  34. deltaB.addOperation( new MoveOperation( new Position( root, [ 1, 2, 0 ] ), 2, new Position( root, [ 4, 1 ] ), baseVersion ) );
  35. let deltaAbyB = transform( deltaA, deltaB );
  36. let deltaBbyA = transform( deltaB, deltaA );
  37. expect( deltaAbyB.length ).to.equal( 1 );
  38. expectDelta( deltaAbyB[ 0 ], {
  39. type: Delta,
  40. operations: [
  41. {
  42. type: MoveOperation,
  43. sourcePosition: new Position( root, [ 1, 2, 1 ] ),
  44. howMany: 4,
  45. targetPosition: new Position( root, [ 4, 0 ] ),
  46. baseVersion: 1
  47. }
  48. ]
  49. } );
  50. expect( deltaBbyA.length ).to.equal( 1 );
  51. expectDelta( deltaBbyA[ 0 ], {
  52. type: Delta,
  53. operations: [
  54. {
  55. type: MoveOperation,
  56. sourcePosition: new Position( root, [ 1, 2, 0 ] ),
  57. howMany: 2,
  58. targetPosition: new Position( root, [ 4, 5 ] ),
  59. baseVersion: 1
  60. }
  61. ]
  62. } );
  63. } );
  64. } );