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+/**
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+ * @license Copyright (c) 2003-2016, CKSource - Frederico Knabben. All rights reserved.
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+ * For licensing, see LICENSE.md.
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+ */
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+
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+/* bender-tags: treecontroller */
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+
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+'use strict';
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+
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+import ModelConsumable from '/ckeditor5/engine/treecontroller/modelconsumable.js';
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+import ModelElement from '/ckeditor5/engine/treemodel/element.js';
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+import ModelTextProxy from '/ckeditor5/engine/treemodel/textproxy.js';
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+
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+describe( 'ModelConsumable', () => {
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+ let modelConsumable, modelElement;
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+
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+ beforeEach( () => {
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+ modelConsumable = new ModelConsumable();
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+ modelElement = new ModelElement( 'paragraph', null, 'foobar' );
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+ } );
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+
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+ describe( 'add', () => {
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+ it( 'should add consumable value from given element of given type', () => {
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+ modelConsumable.add( modelElement, 'type' );
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+
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+ expect( modelConsumable.test( modelElement, 'type' ) ).to.be.true;
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+ } );
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+
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+ it( 'should store multiple values for one element', () => {
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+ modelConsumable.add( modelElement, 'typeA' );
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+ modelConsumable.add( modelElement, 'typeB' );
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+ modelConsumable.add( modelElement, 'typeC' );
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+
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+ expect( modelConsumable.test( modelElement, 'typeA' ) ).to.be.true;
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+ expect( modelConsumable.test( modelElement, 'typeB' ) ).to.be.true;
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+ expect( modelConsumable.test( modelElement, 'typeC' ) ).to.be.true;
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+ } );
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+
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+ it( 'should correctly add text proxy instances', () => {
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+ const modelTextProxy = new ModelTextProxy( modelElement.getChild( 1 ), 3 );
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+
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+ modelConsumable.add( modelTextProxy, 'type' );
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+
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+ expect( modelConsumable.test( modelTextProxy, 'type' ) ).to.be.true;
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+ } );
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+ } );
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+
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+ describe( 'consume', () => {
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+ it( 'should remove consumable value of given type for given element and return true', () => {
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+ modelConsumable.add( modelElement, 'type' );
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+
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+ const result = modelConsumable.consume( modelElement, 'type' );
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+
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+ expect( result ).to.be.true;
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+ expect( modelConsumable.test( modelElement, 'type' ) ).to.be.false;
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+ } );
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+
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+ it( 'should return false if given type of consumable was not added for given element', () => {
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+ const result = modelConsumable.consume( modelElement, 'type' );
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+
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+ expect( result ).to.be.false;
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+ } );
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+
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+ it( 'should correctly consume text proxy instances', () => {
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+ const proxy1To4 = new ModelTextProxy( modelElement.getChild( 1 ), 3 );
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+ const proxy1To5 = new ModelTextProxy( modelElement.getChild( 1 ), 4 );
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+ const proxyDiv1To4 = new ModelTextProxy( new ModelElement( 'div', null, 'abcdef' ).getChild( 1 ), 3 );
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+
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+ modelConsumable.add( proxy1To4, 'type' );
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+
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+ expect( modelConsumable.consume( proxy1To5, 'type' ) ).to.be.false;
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+ expect( modelConsumable.consume( proxyDiv1To4, 'type' ) ).to.be.false;
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+
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+ const equalProxy1To4 = new ModelTextProxy( modelElement.getChild( 1 ), 3 );
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+ const result = modelConsumable.consume( equalProxy1To4, 'type' );
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+
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+ expect( result ).to.be.true;
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+ expect( modelConsumable.test( proxy1To4, 'type' ) ).to.be.false;
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+ } );
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+ } );
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+
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+ describe( 'revert', () => {
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+ it( 'should re-add consumable value if it was already consumed and return true', () => {
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+ modelConsumable.add( modelElement, 'type' );
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+ modelConsumable.consume( modelElement, 'type' );
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+
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+ const result = modelConsumable.revert( modelElement, 'type' );
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+
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+ expect( result ).to.be.true;
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+ expect( modelConsumable.test( modelElement, 'type' ) ).to.be.true;
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+ } );
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+
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+ it( 'should return false if consumable value has not been yet consumed', () => {
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+ modelConsumable.add( modelElement, 'type' );
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+
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+ const result = modelConsumable.revert( modelElement, 'type' );
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+
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+ expect( result ).to.be.false;
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+ } );
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+
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+ it( 'should return null if consumable value of given type has never been added for given element', () => {
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+ const result = modelConsumable.revert( modelElement, 'type' );
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+
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+ expect( result ).to.be.null;
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+ } );
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+
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+ it( 'should correctly revert text proxy instances', () => {
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+ const modelTextProxy = new ModelTextProxy( modelElement.getChild( 1 ), 3 );
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+
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+ modelConsumable.add( modelTextProxy, 'type' );
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+ modelConsumable.consume( modelTextProxy, 'type' );
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+
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+ const result = modelConsumable.revert( modelTextProxy, 'type' );
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+
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+ expect( result ).to.be.true;
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+ expect( modelConsumable.test( modelTextProxy, 'type' ) ).to.be.true;
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+ } );
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+ } );
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+
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+ describe( 'test', () => {
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+ it( 'should return null if consumable value of given type has never been added for given element', () => {
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+ expect( modelConsumable.test( modelElement, 'typeA' ) ).to.be.null;
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+
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+ modelConsumable.add( modelElement, 'typeA' );
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+
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+ expect( modelConsumable.test( modelElement, 'typeB' ) ).to.be.null;
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+ } );
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+
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+ it( 'should correctly test for text proxy instances', () => {
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+ const proxy1To4 = new ModelTextProxy( modelElement.getChild( 1 ), 3 );
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+ const proxy1To5 = new ModelTextProxy( modelElement.getChild( 1 ), 4 );
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+ const proxyDiv1To4 = new ModelTextProxy( new ModelElement( 'div', null, 'abcdef' ).getChild( 1 ), 3 );
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+ const equalProxy1To4 = new ModelTextProxy( modelElement.getChild( 1 ), 3 );
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+
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+ modelConsumable.add( proxy1To4, 'type' );
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+
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+ expect( modelConsumable.test( proxy1To4, 'type' ) ).to.be.true;
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+ expect( modelConsumable.test( proxy1To4, 'otherType' ) ).to.be.null;
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+ expect( modelConsumable.test( proxy1To5, 'type' ) ).to.be.null;
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+ expect( modelConsumable.test( proxyDiv1To4, 'type' ) ).to.be.null;
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+ expect( modelConsumable.test( equalProxy1To4, 'type' ) ).to.be.true;
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+ } );
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+ } );
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+} );
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