| 123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147148149150151152153154155156157158159160161162163164165166167168169170171172173174175176177178179180181182183184185186187188189190191192193194195196197198199200201202203204205206207208209210211212 |
- /**
- * @license Copyright (c) 2003-2017, CKSource - Frederico Knabben. All rights reserved.
- * For licensing, see LICENSE.md.
- */
- import History from '../../src/model/history';
- import Delta from '../../src/model/delta/delta';
- import Operation from '../../src/model/operation/operation';
- import CKEditorError from '@ckeditor/ckeditor5-utils/src/ckeditorerror';
- describe( 'History', () => {
- let history;
- beforeEach( () => {
- history = new History();
- } );
- describe( 'constructor()', () => {
- it( 'should create an empty History instance', () => {
- expect( Array.from( history.getDeltas() ).length ).to.equal( 0 );
- } );
- } );
- describe( 'addDelta', () => {
- it( 'should save delta in the history', () => {
- const delta = new Delta();
- delta.addOperation( new Operation( 0 ) );
- history.addDelta( delta );
- const deltas = Array.from( history.getDeltas() );
- expect( deltas.length ).to.equal( 1 );
- expect( deltas[ 0 ] ).to.equal( delta );
- } );
- it( 'should save each delta only once', () => {
- const delta = new Delta();
- delta.addOperation( new Operation( 0 ) );
- history.addDelta( delta );
- history.addDelta( delta );
- const deltas = Array.from( history.getDeltas() );
- expect( deltas.length ).to.equal( 1 );
- expect( deltas[ 0 ] ).to.equal( delta );
- } );
- it( 'should save multiple deltas and keep their order', () => {
- const deltas = getDeltaSet();
- for ( const delta of deltas ) {
- history.addDelta( delta );
- }
- const historyDeltas = Array.from( history.getDeltas() );
- expect( historyDeltas ).to.deep.equal( deltas );
- } );
- it( 'should skip deltas that does not have operations', () => {
- const delta = new Delta();
- history.addDelta( delta );
- expect( Array.from( history.getDeltas() ).length ).to.equal( 0 );
- } );
- } );
- describe( 'getDelta', () => {
- it( 'should return delta with given base version', () => {
- const delta = getDelta( 0 );
- history.addDelta( delta );
- const historyDelta = history.getDelta( 0 );
- expect( historyDelta ).to.equal( delta );
- } );
- it( 'should return null if delta has not been found in history', () => {
- expect( history.getDelta( -1 ) ).to.be.null;
- expect( history.getDelta( 2 ) ).to.be.null;
- expect( history.getDelta( 20 ) ).to.be.null;
- } );
- } );
- describe( 'getDeltas', () => {
- let deltas;
- beforeEach( () => {
- deltas = getDeltaSet();
- for ( const delta of deltas ) {
- history.addDelta( delta );
- }
- } );
- it( 'should return only history deltas from given base version', () => {
- const historyDeltas = Array.from( history.getDeltas( 3 ) );
- expect( historyDeltas ).to.deep.equal( deltas.slice( 1 ) );
- } );
- it( 'should return only history deltas to given base version', () => {
- const historyDeltas = Array.from( history.getDeltas( 3, 6 ) );
- expect( historyDeltas ).to.deep.equal( deltas.slice( 1, 2 ) );
- } );
- it( 'should return empty (finished) iterator if given history point is too high or negative', () => {
- expect( Array.from( history.getDeltas( 20 ) ).length ).to.equal( 0 );
- expect( Array.from( history.getDeltas( -1 ) ).length ).to.equal( 0 );
- } );
- it( 'should throw if given history point is "inside" delta', () => {
- expect( () => {
- Array.from( history.getDeltas( 2 ) );
- } ).to.throw( CKEditorError, /model-history-wrong-version/ );
- } );
- } );
- describe( 'isUndoingDelta', () => {
- let undoing, undone;
- beforeEach( () => {
- undoing = new Delta();
- undone = new Delta();
- history.addDelta( undone );
- history.addDelta( undoing );
- history.setDeltaAsUndone( undone, undoing );
- } );
- it( 'should return true if delta is an undoing delta', () => {
- expect( history.isUndoingDelta( undoing ) ).to.be.true;
- } );
- it( 'should return false if delta is not an undoing delta', () => {
- const delta = new Delta();
- expect( history.isUndoingDelta( undone ) ).to.be.false;
- expect( history.isUndoingDelta( delta ) ).to.be.false;
- } );
- } );
- describe( 'isUndoneDelta', () => {
- let undoing, undone;
- beforeEach( () => {
- undoing = new Delta();
- undone = new Delta();
- history.addDelta( undone );
- history.addDelta( undoing );
- history.setDeltaAsUndone( undone, undoing );
- } );
- it( 'should return true if delta has been set as undone', () => {
- expect( history.isUndoneDelta( undone ) ).to.be.true;
- } );
- it( 'should return false if delta has not been set as undone', () => {
- const delta = new Delta();
- expect( history.isUndoneDelta( undoing ) ).to.be.false;
- expect( history.isUndoneDelta( delta ) ).to.be.false;
- } );
- } );
- describe( 'getUndoneDelta', () => {
- let undoing, undone;
- beforeEach( () => {
- undoing = new Delta();
- undone = new Delta();
- history.addDelta( undone );
- history.addDelta( undoing );
- history.setDeltaAsUndone( undone, undoing );
- } );
- it( 'should return undone delta basing on undoing delta', () => {
- expect( history.getUndoneDelta( undoing ) ).to.equal( undone );
- } );
- it( 'should return undefined if given delta is not an undoing delta', () => {
- const delta = new Delta();
- expect( history.getUndoneDelta( undone ) ).to.be.undefined;
- expect( history.getUndoneDelta( delta ) ).to.be.undefined;
- } );
- } );
- } );
- function getDeltaSet() {
- const deltas = [];
- deltas.push( getDelta( 0 ) );
- deltas.push( getDelta( 3 ) );
- deltas.push( getDelta( 6 ) );
- return deltas;
- }
- function getDelta( baseVersion ) {
- const delta = new Delta();
- for ( let i = 0; i < 3; i++ ) {
- delta.addOperation( new Operation( i + baseVersion ) );
- }
- return delta;
- }
|