/** * @license Copyright (c) 2003-2020, CKSource - Frederico Knabben. All rights reserved. * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license */ /* global document, window */ import isNode from '../../src/dom/isnode'; describe( 'isNode()', () => { it( 'detects native DOM nodes', () => { expect( isNode( document ) ).to.be.true; expect( isNode( document.createElement( 'div' ) ) ).to.be.true; expect( isNode( document.createTextNode( 'Foo' ) ) ).to.be.true; expect( isNode( {} ) ).to.be.false; expect( isNode( null ) ).to.be.false; expect( isNode( undefined ) ).to.be.false; expect( isNode( new Date() ) ).to.be.false; expect( isNode( 42 ) ).to.be.false; expect( isNode( window ) ).to.be.false; } ); it( 'works for nodes in an iframe', done => { const iframe = document.createElement( 'iframe' ); iframe.addEventListener( 'load', () => { const iframeDocument = iframe.contentWindow.document; expect( isNode( iframeDocument ) ).to.be.true; expect( isNode( iframeDocument.createElement( 'div' ) ) ).to.be.true; expect( isNode( iframeDocument.createTextNode( 'Foo' ) ) ).to.be.true; expect( isNode( iframe.contentWindow ) ).to.be.false; iframe.remove(); done(); } ); document.body.appendChild( iframe ); } ); } );