/** * @license Copyright (c) 2003-2015, CKSource - Frederico Knabben. All rights reserved. * For licensing, see LICENSE.md. */ /* bender-tags: treeview */ 'use strict'; import ViewText from '/ckeditor5/engine/treeview/text.js'; import ViewElement from '/ckeditor5/engine/treeview/element.js'; import DomConverter from '/ckeditor5/engine/treeview/domconverter.js'; import ViewDocumentFragment from '/ckeditor5/engine/treeview/documentfragment.js'; import { INLINE_FILLER, INLINE_FILLER_LENGTH, BR_FILLER, NBSP_FILLER, isBlockFiller } from '/ckeditor5/engine/treeview/filler.js'; import { parse } from '/tests/engine/_utils/view.js'; import count from '/ckeditor5/utils/count.js'; import createElement from '/ckeditor5/utils/dom/createelement.js'; describe( 'DomConverter', () => { let converter; before( () => { converter = new DomConverter(); } ); describe( 'constructor', () => { it( 'should create converter with BR block filler by default', () => { converter = new DomConverter(); expect( converter.blockFiller ).to.equal( BR_FILLER ); } ); it( 'should create converter with defined block filler', () => { converter = new DomConverter( { blockFiller: NBSP_FILLER } ); expect( converter.blockFiller ).to.equal( NBSP_FILLER ); } ); } ); describe( 'bindElements', () => { it( 'should bind elements', () => { const domElement = document.createElement( 'p' ); const viewElement = new ViewElement( 'p' ); converter.bindElements( domElement, viewElement ); expect( converter.getCorrespondingView( domElement ) ).to.equal( viewElement ); expect( converter.getCorrespondingDom( viewElement ) ).to.equal( domElement ); } ); } ); describe( 'bindDocumentFragments', () => { it( 'should bind document fragments', () => { const domFragment = document.createDocumentFragment(); const viewFragment = new ViewDocumentFragment(); converter.bindDocumentFragments( domFragment, viewFragment ); expect( converter.getCorrespondingView( domFragment ) ).to.equal( viewFragment ); expect( converter.getCorrespondingDom( viewFragment ) ).to.equal( domFragment ); } ); } ); describe( 'viewToDom', () => { it( 'should create tree of DOM elements from view elements', () => { const viewImg = new ViewElement( 'img' ); const viewText = new ViewText( 'foo' ); const viewP = new ViewElement( 'p' ); viewP.setAttribute( 'class', 'foo' ); viewP.appendChildren( viewImg ); viewP.appendChildren( viewText ); const domImg = document.createElement( 'img' ); converter.bindElements( domImg, viewImg ); const domP = converter.viewToDom( viewP, document ); expect( domP ).to.be.an.instanceof( HTMLElement ); expect( domP.tagName ).to.equal( 'P' ); expect( domP.getAttribute( 'class' ) ).to.equal( 'foo' ); expect( domP.attributes.length ).to.equal( 1 ); expect( domP.childNodes.length ).to.equal( 2 ); expect( domP.childNodes[ 0 ].tagName ).to.equal( 'IMG' ); expect( domP.childNodes[ 1 ].data ).to.equal( 'foo' ); expect( converter.getCorrespondingView( domP ) ).not.to.equal( viewP ); expect( converter.getCorrespondingView( domP.childNodes[ 0 ] ) ).to.equal( viewImg ); } ); it( 'should create tree of DOM elements from view elements and bind elements', () => { const viewImg = new ViewElement( 'img' ); const viewText = new ViewText( 'foo' ); const viewP = new ViewElement( 'p' ); viewP.setAttribute( 'class', 'foo' ); viewP.appendChildren( viewImg ); viewP.appendChildren( viewText ); const domP = converter.viewToDom( viewP, document, { bind: true } ); expect( domP ).to.be.an.instanceof( HTMLElement ); expect( domP.tagName ).to.equal( 'P' ); expect( domP.getAttribute( 'class' ) ).to.equal( 'foo' ); expect( domP.attributes.length ).to.equal( 1 ); expect( domP.childNodes.length ).to.equal( 2 ); expect( domP.childNodes[ 0 ].tagName ).to.equal( 'IMG' ); expect( domP.childNodes[ 1 ].data ).to.equal( 'foo' ); expect( converter.getCorrespondingView( domP ) ).to.equal( viewP ); expect( converter.getCorrespondingView( domP.childNodes[ 0 ] ) ).to.equal( viewP.getChild( 0 ) ); } ); it( 'should create tree of DOM elements from view element without children', () => { const viewImg = new ViewElement( 'img' ); const viewText = new ViewText( 'foo' ); const viewP = new ViewElement( 'p' ); viewP.setAttribute( 'class', 'foo' ); viewP.appendChildren( viewImg ); viewP.appendChildren( viewText ); const domImg = document.createElement( 'img' ); converter.bindElements( domImg, viewImg ); const domP = converter.viewToDom( viewP, document, { withChildren: false } ); expect( domP ).to.be.an.instanceof( HTMLElement ); expect( domP.tagName ).to.equal( 'P' ); expect( domP.getAttribute( 'class' ) ).to.equal( 'foo' ); expect( domP.attributes.length ).to.equal( 1 ); expect( domP.childNodes.length ).to.equal( 0 ); expect( converter.getCorrespondingView( domP ) ).not.to.equal( viewP ); } ); it( 'should create DOM document fragment from view document fragment and bind elements', () => { const viewImg = new ViewElement( 'img' ); const viewText = new ViewText( 'foo' ); const viewFragment = new ViewDocumentFragment(); viewFragment.appendChildren( viewImg ); viewFragment.appendChildren( viewText ); const domFragment = converter.viewToDom( viewFragment, document, { bind: true } ); expect( domFragment ).to.be.an.instanceof( DocumentFragment ); expect( domFragment.childNodes.length ).to.equal( 2 ); expect( domFragment.childNodes[ 0 ].tagName ).to.equal( 'IMG' ); expect( domFragment.childNodes[ 1 ].data ).to.equal( 'foo' ); expect( converter.getCorrespondingView( domFragment ) ).to.equal( viewFragment ); expect( converter.getCorrespondingView( domFragment.childNodes[ 0 ] ) ).to.equal( viewFragment.getChild( 0 ) ); } ); it( 'should create DOM document fragment from view document without children', () => { const viewImg = new ViewElement( 'img' ); const viewText = new ViewText( 'foo' ); const viewFragment = new ViewDocumentFragment(); viewFragment.appendChildren( viewImg ); viewFragment.appendChildren( viewText ); const domImg = document.createElement( 'img' ); converter.bindElements( domImg, viewImg ); const domFragment = converter.viewToDom( viewFragment, document, { withChildren: false } ); expect( domFragment ).to.be.an.instanceof( DocumentFragment ); expect( domFragment.childNodes.length ).to.equal( 0 ); expect( converter.getCorrespondingView( domFragment ) ).not.to.equal( viewFragment ); } ); it( 'should return already bind document fragment', () => { const domFragment = document.createDocumentFragment(); const viewFragment = new ViewDocumentFragment(); converter.bindDocumentFragments( domFragment, viewFragment ); const domFragment2 = converter.viewToDom( viewFragment ); expect( domFragment2 ).to.equal( domFragment ); } ); } ); describe( 'viewChildrenToDom', () => { it( 'should convert children', () => { const viewP = parse( 'foobar' ); const domChildren = Array.from( converter.viewChildrenToDom( viewP, document ) ); expect( domChildren.length ).to.equal( 2 ); expect( domChildren[ 0 ].data ).to.equal( 'foo' ); expect( domChildren[ 1 ].tagName.toLowerCase() ).to.equal( 'b' ); expect( domChildren[ 1 ].childNodes.length ).to.equal( 1 ); } ); it( 'should add bogus', () => { const viewP = parse( '' ); const domChildren = Array.from( converter.viewChildrenToDom( viewP, document ) ); expect( domChildren.length ).to.equal( 1 ); expect( isBlockFiller( domChildren[ 0 ], converter.blockFiller ) ).to.be.true; } ); it( 'should add bogus according to fillerPositionOffset', () => { const viewP = parse( 'foo' ); viewP.getBlockFillerOffset = () => 0; const domChildren = Array.from( converter.viewChildrenToDom( viewP, document ) ); expect( domChildren.length ).to.equal( 2 ); expect( isBlockFiller( domChildren[ 0 ], converter.blockFiller ) ).to.be.true; expect( domChildren[ 1 ].data ).to.equal( 'foo' ); } ); it( 'should pass options', () => { const viewP = parse( 'foobar' ); const domChildren = Array.from( converter.viewChildrenToDom( viewP, document, { withChildren: false } ) ); expect( domChildren.length ).to.equal( 2 ); expect( domChildren[ 0 ].data ).to.equal( 'foo' ); expect( domChildren[ 1 ].tagName.toLowerCase() ).to.equal( 'b' ); expect( domChildren[ 1 ].childNodes.length ).to.equal( 0 ); } ); } ); describe( 'viewPositionToDom', () => { it( 'should convert the position in the text', () => { const domFoo = document.createTextNode( 'foo' ); const domP = createElement( document, 'p', null, domFoo ); const { view: viewP, selection } = parse( 'fo{}o' ); converter.bindElements( domP, viewP ); const viewPosition = selection.getFirstPosition(); const domPosition = converter.viewPositionToDom( viewPosition ); expect( domPosition.offset ).to.equal( 2 ); expect( domPosition.parent ).to.equal( domFoo ); } ); it( 'should convert the position in the empty element', () => { const domP = createElement( document, 'p' ); const { view: viewP, selection } = parse( '[]' ); converter.bindElements( domP, viewP ); const viewPosition = selection.getFirstPosition(); const domPosition = converter.viewPositionToDom( viewPosition ); expect( domPosition.offset ).to.equal( 0 ); expect( domPosition.parent ).to.equal( domP ); } ); it( 'should convert the position in the non-empty element', () => { const domB = createElement( document, 'b', null, 'foo' ); const domP = createElement( document, 'p', null, domB ); const { view: viewP, selection } = parse( 'foo[]' ); converter.bindElements( domP, viewP ); converter.bindElements( domB, viewP.getChild( 0 ) ); const viewPosition = selection.getFirstPosition(); const domPosition = converter.viewPositionToDom( viewPosition ); expect( domPosition.offset ).to.equal( 1 ); expect( domPosition.parent ).to.equal( domP ); } ); it( 'should convert the position after text', () => { const domP = createElement( document, 'p', null, 'foo' ); const { view: viewP, selection } = parse( 'foo[]' ); converter.bindElements( domP, viewP ); const viewPosition = selection.getFirstPosition(); const domPosition = converter.viewPositionToDom( viewPosition ); expect( domPosition.offset ).to.equal( 1 ); expect( domPosition.parent ).to.equal( domP ); } ); it( 'should convert the position before text', () => { const domP = createElement( document, 'p', null, 'foo' ); const { view: viewP, selection } = parse( '[]foo' ); converter.bindElements( domP, viewP ); const viewPosition = selection.getFirstPosition(); const domPosition = converter.viewPositionToDom( viewPosition ); expect( domPosition.offset ).to.equal( 0 ); expect( domPosition.parent ).to.equal( domP ); } ); it( 'should update offset if DOM text node starts with inline filler', () => { const domFoo = document.createTextNode( INLINE_FILLER + 'foo' ); const domP = createElement( document, 'p', null, domFoo ); const { view: viewP, selection } = parse( 'fo{}o' ); converter.bindElements( domP, viewP ); const viewPosition = selection.getFirstPosition(); const domPosition = converter.viewPositionToDom( viewPosition ); expect( domPosition.offset ).to.equal( INLINE_FILLER_LENGTH + 2 ); expect( domPosition.parent ).to.equal( domFoo ); } ); it( 'should move the position to the text node if the position is where inline filler is', () => { const domFiller = document.createTextNode( INLINE_FILLER ); const domP = createElement( document, 'p', null, domFiller ); const { view: viewP, selection } = parse( '[]' ); converter.bindElements( domP, viewP ); const viewPosition = selection.getFirstPosition(); const domPosition = converter.viewPositionToDom( viewPosition ); expect( domPosition.offset ).to.equal( INLINE_FILLER_LENGTH ); expect( domPosition.parent ).to.equal( domFiller ); } ); } ); describe( 'viewRangeToDom', () => { it( 'should convert view range to DOM range', () => { const domFoo = document.createTextNode( 'foo' ); const domP = createElement( document, 'p', null, domFoo ); const { view: viewP, selection } = parse( 'fo{o]' ); converter.bindElements( domP, viewP ); const viewRange = selection.getFirstRange(); const domRange = converter.viewRangeToDom( viewRange ); expect( domRange ).to.be.instanceof( Range ); expect( domRange.startContainer ).to.equal( domFoo ); expect( domRange.startOffset ).to.equal( 2 ); expect( domRange.endContainer ).to.equal( domP ); expect( domRange.endOffset ).to.equal( 1 ); } ); } ); describe( 'domToView', () => { it( 'should create tree of view elements from DOM elements', () => { const domImg = document.createElement( 'img' ); const domText = document.createTextNode( 'foo' ); const domP = document.createElement( 'p' ); domP.setAttribute( 'class', 'foo' ); domP.appendChild( domImg ); domP.appendChild( domText ); const viewImg = new ViewElement( 'img' ); converter.bindElements( domImg, viewImg ); const viewP = converter.domToView( domP ); expect( viewP ).to.be.an.instanceof( ViewElement ); expect( viewP.name ).to.equal( 'p' ); expect( viewP.getAttribute( 'class' ) ).to.equal( 'foo' ); expect( count( viewP.getAttributeKeys() ) ).to.equal( 1 ); expect( viewP.getChildCount() ).to.equal( 2 ); expect( viewP.getChild( 0 ).name ).to.equal( 'img' ); expect( viewP.getChild( 1 ).data ).to.equal( 'foo' ); expect( converter.getCorrespondingDom( viewP ) ).to.not.equal( domP ); expect( converter.getCorrespondingDom( viewP.getChild( 0 ) ) ).to.equal( domImg ); } ); it( 'should create tree of view elements from DOM elements and bind elements', () => { const domImg = document.createElement( 'img' ); const domText = document.createTextNode( 'foo' ); const domP = document.createElement( 'p' ); domP.setAttribute( 'class', 'foo' ); domP.appendChild( domImg ); domP.appendChild( domText ); const viewP = converter.domToView( domP, { bind: true } ); expect( viewP ).to.be.an.instanceof( ViewElement ); expect( viewP.name ).to.equal( 'p' ); expect( viewP.getAttribute( 'class' ) ).to.equal( 'foo' ); expect( count( viewP.getAttributeKeys() ) ).to.equal( 1 ); expect( viewP.getChildCount() ).to.equal( 2 ); expect( viewP.getChild( 0 ).name ).to.equal( 'img' ); expect( viewP.getChild( 1 ).data ).to.equal( 'foo' ); expect( converter.getCorrespondingDom( viewP ) ).to.equal( domP ); expect( converter.getCorrespondingDom( viewP.getChild( 0 ) ) ).to.equal( domP.childNodes[ 0 ] ); } ); it( 'should create tree of view elements from DOM element without children', () => { const domImg = document.createElement( 'img' ); const domText = document.createTextNode( 'foo' ); const domP = document.createElement( 'p' ); domP.setAttribute( 'class', 'foo' ); domP.appendChild( domImg ); domP.appendChild( domText ); const viewImg = new ViewElement( 'img' ); converter.bindElements( domImg, viewImg ); const viewP = converter.domToView( domP, { withChildren: false } ); expect( viewP ).to.be.an.instanceof( ViewElement ); expect( viewP.name ).to.equal( 'p' ); expect( viewP.getAttribute( 'class' ) ).to.equal( 'foo' ); expect( count( viewP.getAttributeKeys() ) ).to.equal( 1 ); expect( viewP.getChildCount() ).to.equal( 0 ); expect( converter.getCorrespondingDom( viewP ) ).to.not.equal( domP ); } ); it( 'should create view document fragment from DOM document fragment', () => { const domImg = document.createElement( 'img' ); const domText = document.createTextNode( 'foo' ); const domFragment = document.createDocumentFragment(); domFragment.appendChild( domImg ); domFragment.appendChild( domText ); const viewFragment = converter.domToView( domFragment, { bind: true } ); expect( viewFragment ).to.be.an.instanceof( ViewDocumentFragment ); expect( viewFragment.getChildCount() ).to.equal( 2 ); expect( viewFragment.getChild( 0 ).name ).to.equal( 'img' ); expect( viewFragment.getChild( 1 ).data ).to.equal( 'foo' ); expect( converter.getCorrespondingDom( viewFragment ) ).to.equal( domFragment ); expect( converter.getCorrespondingDom( viewFragment.getChild( 0 ) ) ).to.equal( domFragment.childNodes[ 0 ] ); } ); it( 'should create view document fragment from DOM document fragment without children', () => { const domImg = document.createElement( 'img' ); const domText = document.createTextNode( 'foo' ); const domFragment = document.createDocumentFragment(); domFragment.appendChild( domImg ); domFragment.appendChild( domText ); const viewImg = new ViewElement( 'img' ); converter.bindElements( domImg, viewImg ); const viewFragment = converter.domToView( domFragment, { withChildren: false } ); expect( viewFragment ).to.be.an.instanceof( ViewDocumentFragment ); expect( viewFragment.getChildCount() ).to.equal( 0 ); expect( converter.getCorrespondingDom( viewFragment ) ).to.not.equal( domFragment ); } ); it( 'should return already bind document fragment', () => { const domFragment = document.createDocumentFragment(); const viewFragment = new ViewDocumentFragment(); converter.bindDocumentFragments( domFragment, viewFragment ); const viewFragment2 = converter.domToView( domFragment ); expect( viewFragment2 ).to.equal( viewFragment ); } ); } ); describe( 'getCorrespondingView', () => { it( 'should return corresponding view element if element is passed', () => { const domElement = document.createElement( 'p' ); const viewElement = new ViewElement( 'p' ); converter.bindElements( domElement, viewElement ); expect( converter.getCorrespondingView( domElement ) ).to.equal( viewElement ); } ); it( 'should return corresponding view text if text is passed', () => { const domText = document.createTextNode( 'foo' ); const domP = document.createElement( 'p' ); domP.appendChild( domText ); const viewP = converter.domToView( domP ); const viewText = viewP.getChild( 0 ); converter.bindElements( domP, viewP ); expect( converter.getCorrespondingView( domText ) ).to.equal( viewText ); } ); it( 'should return corresponding view document fragment', () => { const domFragment = document.createDocumentFragment(); const viewFragment = converter.domToView( domFragment ); converter.bindElements( domFragment, viewFragment ); expect( converter.getCorrespondingView( domFragment ) ).to.equal( viewFragment ); } ); it( 'should return null if falsy value was passed', () => { expect( converter.getCorrespondingView( null ) ).to.be.null; expect( converter.getCorrespondingView( undefined ) ).to.be.null; } ); } ); describe( 'getCorrespondingViewElement', () => { it( 'should return corresponding view element', () => { const domElement = document.createElement( 'p' ); const viewElement = new ViewElement( 'p' ); converter.bindElements( domElement, viewElement ); expect( converter.getCorrespondingViewElement( domElement ) ).to.equal( viewElement ); } ); } ); describe( 'getCorrespondingViewDocumentFragment', () => { it( 'should return corresponding view document fragment', () => { const domFragment = document.createDocumentFragment(); const viewFragment = converter.domToView( domFragment ); converter.bindElements( domFragment, viewFragment ); expect( converter.getCorrespondingViewDocumentFragment( domFragment ) ).to.equal( viewFragment ); } ); } ); describe( 'getCorrespondingViewText', () => { it( 'should return corresponding view text based on sibling', () => { const domImg = document.createElement( 'img' ); const domText = document.createTextNode( 'foo' ); const domP = createElement( document, 'p', null, [ domImg, domText ] ); const viewImg = new ViewElement( 'img' ); converter.bindElements( domImg, viewImg ); const viewP = converter.domToView( domP ); const viewText = viewP.getChild( 1 ); expect( converter.getCorrespondingViewText( domText ) ).to.equal( viewText ); } ); it( 'should return corresponding view text based on parent', () => { const domText = document.createTextNode( 'foo' ); const domP = createElement( document, 'p', null, domText ); const viewP = converter.domToView( domP ); const viewText = viewP.getChild( 0 ); converter.bindElements( domP, viewP ); expect( converter.getCorrespondingViewText( domText ) ).to.equal( viewText ); } ); it( 'should return null if sibling is not bound', () => { const domImg = document.createElement( 'img' ); const domText = document.createTextNode( 'foo' ); const domP = createElement( document, 'p', null, [ domImg, domText ] ); const viewP = converter.domToView( domP ); converter.bindElements( domP, viewP ); expect( converter.getCorrespondingViewText( domText ) ).to.be.null; } ); it( 'should return null if sibling is not element', () => { const domTextFoo = document.createTextNode( 'foo' ); const domTextBar = document.createTextNode( 'bar' ); const domP = createElement( document, 'p', null, [ domTextFoo, domTextBar ] ); const viewP = converter.domToView( domP ); converter.bindElements( domP, viewP ); expect( converter.getCorrespondingViewText( domTextBar ) ).to.be.null; } ); it( 'should return null if parent is not bound', () => { const domText = document.createTextNode( 'foo' ); createElement( document, 'p', null, domText ); expect( converter.getCorrespondingViewText( domText ) ).to.be.null; } ); it( 'should return null for inline filler', () => { const domFiller = document.createTextNode( INLINE_FILLER ); const domP = createElement( document, 'p', null, domFiller ); const viewP = converter.domToView( domP ); converter.bindElements( domP, viewP ); expect( converter.getCorrespondingViewText( domFiller ) ).to.be.null; } ); it( 'should return null if there is no text node sibling in view', () => { const domB = document.createElement( 'b' ); const domI = document.createElement( 'i' ); const domText = document.createTextNode( 'x' ); const domP = createElement( document, 'p', null, [ domB, domText, domI ] ); const viewP = parse( '

' ); const viewB = viewP.getChild( 0 ); const viewI = viewP.getChild( 1 ); converter.bindElements( domP, viewP ); converter.bindElements( domI, viewI ); converter.bindElements( domB, viewB ); expect( converter.getCorrespondingViewText( domText ) ).to.be.null; } ); it( 'should return null if there is no child text node in view', () => { const domText = document.createTextNode( 'x' ); const domP = createElement( document, 'p', null, domText ); const viewP = parse( '

' ); converter.bindElements( domP, viewP ); expect( converter.getCorrespondingViewText( domText ) ).to.be.null; } ); } ); describe( 'getCorrespondingDom', () => { it( 'should return corresponding DOM element if element was passed', () => { const domElement = document.createElement( 'p' ); const viewElement = new ViewElement( 'p' ); converter.bindElements( domElement, viewElement ); expect( converter.getCorrespondingDom( viewElement ) ).to.equal( domElement ); } ); it( 'should return corresponding DOM text if text was passed', () => { const domText = document.createTextNode( 'foo' ); const domP = document.createElement( 'p' ); domP.appendChild( domText ); const viewP = converter.domToView( domP ); const viewText = viewP.getChild( 0 ); converter.bindElements( domP, viewP ); expect( converter.getCorrespondingDom( viewText ) ).to.equal( domText ); } ); it( 'should return corresponding DOM document fragment', () => { const domFragment = document.createDocumentFragment(); const viewFragment = new ViewDocumentFragment(); converter.bindElements( domFragment, viewFragment ); expect( converter.getCorrespondingDom( viewFragment ) ).to.equal( domFragment ); } ); } ); describe( 'getCorrespondingDomElement', () => { it( 'should return corresponding DOM element', () => { const domElement = document.createElement( 'p' ); const viewElement = new ViewElement( 'p' ); converter.bindElements( domElement, viewElement ); expect( converter.getCorrespondingDomElement( viewElement ) ).to.equal( domElement ); } ); } ); describe( 'getCorrespondingDomDocumentFragment', () => { it( 'should return corresponding DOM document fragment', () => { const domFragment = document.createDocumentFragment(); const viewFragment = new ViewDocumentFragment(); converter.bindElements( domFragment, viewFragment ); expect( converter.getCorrespondingDomDocumentFragment( viewFragment ) ).to.equal( domFragment ); } ); } ); describe( 'getCorrespondingDomText', () => { it( 'should return corresponding DOM text based on sibling', () => { const domImg = document.createElement( 'img' ); const domText = document.createTextNode( 'foo' ); const domP = document.createElement( 'p' ); domP.appendChild( domImg ); domP.appendChild( domText ); const viewImg = new ViewElement( 'img' ); converter.bindElements( domImg, viewImg ); const viewP = converter.domToView( domP ); const viewText = viewP.getChild( 1 ); expect( converter.getCorrespondingDomText( viewText ) ).to.equal( domText ); } ); it( 'should return corresponding DOM text based on parent', () => { const domText = document.createTextNode( 'foo' ); const domP = document.createElement( 'p' ); domP.appendChild( domText ); const viewP = converter.domToView( domP ); const viewText = viewP.getChild( 0 ); converter.bindElements( domP, viewP ); expect( converter.getCorrespondingDomText( viewText ) ).to.equal( domText ); } ); it( 'should return null if sibling is not bound', () => { const domImg = document.createElement( 'img' ); const domText = document.createTextNode( 'foo' ); const domP = document.createElement( 'p' ); domP.appendChild( domImg ); domP.appendChild( domText ); const viewP = converter.domToView( domP ); const viewText = viewP.getChild( 1 ); converter.bindElements( domP, viewP ); expect( converter.getCorrespondingDomText( viewText ) ).to.be.null; } ); it( 'should return null if parent is not bound', () => { const domText = document.createTextNode( 'foo' ); const domP = document.createElement( 'p' ); domP.appendChild( domText ); const viewP = converter.domToView( domP ); const viewText = viewP.getChild( 0 ); expect( converter.getCorrespondingDomText( viewText ) ).to.be.null; } ); } ); } );