text: /**
   * @license Copyright (c) 2003-2021, CKSource - Frederico Knabben. All rights reserved.
   * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license
   */
  
  /* global document */
  
  import CodeBlockEditing from '../src/codeblockediting';
  import CodeBlockCommand from '../src/codeblockcommand';
  import IndentCodeBlockCommand from '../src/indentcodeblockcommand';
  import OutdentCodeBlockCommand from '../src/outdentcodeblockcommand';
  
  import AlignmentEditing from '@ckeditor/ckeditor5-alignment/src/alignmentediting';
  import BoldEditing from '@ckeditor/ckeditor5-basic-styles/src/bold/boldediting';
  import Enter from '@ckeditor/ckeditor5-enter/src/enter';
  import ShiftEnter from '@ckeditor/ckeditor5-enter/src/shiftenter';
  import Paragraph from '@ckeditor/ckeditor5-paragraph/src/paragraph';
  import Undo from '@ckeditor/ckeditor5-undo/src/undo';
  import DomEventData from '@ckeditor/ckeditor5-engine/src/view/observer/domeventdata';
  import IndentEditing from '@ckeditor/ckeditor5-indent/src/indentediting';
  
  import ClassicTestEditor from '@ckeditor/ckeditor5-core/tests/_utils/classictesteditor';
  import { getCode } from '@ckeditor/ckeditor5-utils/src/keyboard';
  import { getData as getModelData, setData as setModelData, stringify } from '@ckeditor/ckeditor5-engine/src/dev-utils/model';
  import { getData as getViewData } from '@ckeditor/ckeditor5-engine/src/dev-utils/view';
  
  import { _clear as clearTranslations, add as addTranslations } from '@ckeditor/ckeditor5-utils/src/translation-service';
  
  describe( 'CodeBlockEditing', () => {
  	let editor, element, model, view, viewDoc;
  
  	before( () => {
  		addTranslations( 'en', {
  			'Plain text': 'Plain text'
  		} );
  
  		addTranslations( 'pl', {
  			'Plain text': 'Zwykły tekst'
  		} );
  	} );
  
  	after( () => {
  		clearTranslations();
  	} );
  
  	beforeEach( () => {
  		element = document.createElement( 'div' );
  		document.body.appendChild( element );
  
  		return ClassicTestEditor
  			.create( element, {
  				language: 'en',
  				plugins: [ CodeBlockEditing, AlignmentEditing, BoldEditing, Enter, Paragraph, Undo ]
  			} )
  			.then( newEditor => {
  				editor = newEditor;
  				model = editor.model;
  				view = editor.editing.view;
  				viewDoc = view.document;
  			} );
  	} );
  
  	afterEach( () => {
  		return editor.destroy().then( () => element.remove() );
  	} );
  
  	it( 'defines plugin name', () => {
  		expect( CodeBlockEditing.pluginName ).to.equal( 'CodeBlockEditing' );
  	} );
  
  	it( 'defines plugin dependencies', () => {
  		expect( CodeBlockEditing.requires ).to.have.members( [ ShiftEnter ] );
  	} );
  
  	describe( 'config', () => {
  		describe( 'languages', () => {
  			describe( 'default value', () => {
  				it( 'should be set', () => {
  					expect( editor.config.get( 'codeBlock.languages' ) ).to.deep.equal( [
  						{ language: 'plaintext', label: 'Plain text' },
  						{ language: 'c', label: 'C' },
  						{ language: 'cs', label: 'C#' },
  						{ language: 'cpp', label: 'C++' },
  						{ language: 'css', label: 'CSS' },
  						{ language: 'diff', label: 'Diff' },
  						{ language: 'html', label: 'HTML' },
  						{ language: 'java', label: 'Java' },
  						{ language: 'javascript', label: 'JavaScript' },
  						{ language: 'php', label: 'PHP' },
  						{ language: 'python', label: 'Python' },
  						{ language: 'ruby', label: 'Ruby' },
  						{ language: 'typescript', label: 'TypeScript' },
  						{ language: 'xml', label: 'XML' }
  					] );
  				} );
  			} );
  		} );
  
  		describe( 'indentSequence', () => {
  			describe( 'default value', () => {
  				it( 'should be set', () => {
  					expect( editor.config.get( 'codeBlock.indentSequence' ) ).to.equal( '	' );
  				} );
  			} );
  		} );
  	} );
  
  	it( 'adds a "codeBlock" command', () => {
  		expect( editor.commands.get( 'codeBlock' ) ).to.be.instanceOf( CodeBlockCommand );
  	} );
  
  	it( 'adds an "indentCodeBlock" command', () => {
  		expect( editor.commands.get( 'indentCodeBlock' ) ).to.be.instanceOf( IndentCodeBlockCommand );
  	} );
  
  	it( 'adds an "outdentCodeBlock" command', () => {
  		expect( editor.commands.get( 'outdentCodeBlock' ) ).to.be.instanceOf( OutdentCodeBlockCommand );
  	} );
  
  	it( 'allows for codeBlock in the $root', () => {
  		expect( model.schema.checkChild( [ '$root' ], 'codeBlock' ) ).to.be.true;
  	} );
  
  	it( 'disallows for codeBlock in the other codeBlock', () => {
  		expect( model.schema.checkChild( [ '$root', 'codeBlock' ], 'codeBlock' ) ).to.be.false;
  	} );
  
  	it( 'allows only for $text in codeBlock', () => {
  		expect( model.schema.checkChild( [ '$root', 'codeBlock' ], '$text' ) ).to.equal( true );
  		expect( model.schema.checkChild( [ '$root', 'codeBlock' ], '$block' ) ).to.equal( false );
  		expect( model.schema.checkChild( [ '$root', 'codeBlock' ], 'codeBlock' ) ).to.equal( false );
  	} );
  
  	it( 'disallows all attributes (except "language") for codeBlock', () => {
  		setModelData( model, '<codeBlock language="css">f[o]o</codeBlock>' );
  
  		editor.execute( 'alignment', { value: 'right' } );
  		editor.execute( 'bold' );
  
  		expect( getModelData( model ) ).to.equal( '<codeBlock language="css">f[o]o</codeBlock>' );
  	} );
  
  	describe( 'tab key handling', () => {
  		let domEvtDataStub;
  
  		beforeEach( () => {
  			domEvtDataStub = {
  				keyCode: getCode( 'Tab' ),
  				preventDefault: sinon.spy(),
  				stopPropagation: sinon.spy()
  			};
  
  			sinon.spy( editor, 'execute' );
  		} );
  
  		afterEach( () => {
  			editor.execute.restore();
  		} );
  
  		it( 'should execute indentCodeBlock command on tab key', () => {
  			setModelData( model, '<codeBlock language="plaintext">[]foo</codeBlock>' );
  
  			editor.editing.view.document.fire( 'keydown', domEvtDataStub );
  
  			sinon.assert.calledOnce( editor.execute );
  			sinon.assert.calledWithExactly( editor.execute, 'indentCodeBlock' );
  			sinon.assert.calledOnce( domEvtDataStub.preventDefault );
  			sinon.assert.calledOnce( domEvtDataStub.stopPropagation );
  		} );
  
  		it( 'should execute outdentCodeBlock command on Shift+Tab keystroke', () => {
  			domEvtDataStub.keyCode += getCode( 'Shift' );
  
  			setModelData( model, '<codeBlock language="plaintext">[]foo</codeBlock>' );
  
  			// '<codeBlock language="plaintext">	[]foo</codeBlock>
  			model.change( writer => {
  				writer.insertText( '	', model.document.getRoot().getChild( 0 ) );
  			} );
  
  			editor.editing.view.document.fire( 'keydown', domEvtDataStub );
  
  			sinon.assert.calledOnce( editor.execute );
  			sinon.assert.calledWithExactly( editor.execute, 'outdentCodeBlock' );
  			sinon.assert.calledOnce( domEvtDataStub.preventDefault );
  			sinon.assert.calledOnce( domEvtDataStub.stopPropagation );
  		} );
  
  		it( 'should not indent if command is disabled', () => {
  			setModelData( model, '<paragraph>[]foo</paragraph>' );
  
  			editor.editing.view.document.fire( 'keydown', domEvtDataStub );
  
  			expect( editor.execute.called ).to.be.false;
  			sinon.assert.notCalled( domEvtDataStub.preventDefault );
  			sinon.assert.notCalled( domEvtDataStub.stopPropagation );
  		} );
  
  		it( 'should not indent or outdent if alt+tab is pressed', () => {
  			domEvtDataStub.keyCode += getCode( 'alt' );
  
  			setModelData( model, '<codeBlock language="plaintext">[]foo</codeBlock>' );
  
  			editor.editing.view.document.fire( 'keydown', domEvtDataStub );
  
  			expect( editor.execute.called ).to.be.false;
  			sinon.assert.notCalled( domEvtDataStub.preventDefault );
  			sinon.assert.notCalled( domEvtDataStub.stopPropagation );
  		} );
  	} );
  
  	describe( 'enter key handling', () => {
  		it( 'should force shiftEnter command when pressing enter inside a codeBlock', () => {
  			const enterCommand = editor.commands.get( 'enter' );
  			const shiftEnterCommand = editor.commands.get( 'shiftEnter' );
  
  			sinon.spy( enterCommand, 'execute' );
  			sinon.spy( shiftEnterCommand, 'execute' );
  
  			setModelData( model, '<codeBlock>foo[]bar</codeBlock>' );
  
  			viewDoc.fire( 'enter', getEvent() );
  
  			expect( getModelData( model ) ).to.equal( '<codeBlock>foo<softBreak></softBreak>[]bar</codeBlock>' );
  			sinon.assert.calledOnce( shiftEnterCommand.execute );
  			sinon.assert.notCalled( enterCommand.execute );
  		} );
  
  		it( 'should execute enter command when pressing enter out of codeBlock', () => {
  			const enterCommand = editor.commands.get( 'enter' );
  			const shiftEnterCommand = editor.commands.get( 'shiftEnter' );
  
  			sinon.spy( enterCommand, 'execute' );
  			sinon.spy( shiftEnterCommand, 'execute' );
  
  			setModelData( model, '<paragraph>foo[]bar</paragraph>' );
  
  			viewDoc.fire( 'enter', getEvent() );
  
  			expect( getModelData( model ) ).to.equal( '<paragraph>foo</paragraph><paragraph>[]bar</paragraph>' );
  			sinon.assert.calledOnce( enterCommand.execute );
  			sinon.assert.notCalled( shiftEnterCommand.execute );
  		} );
  
  		describe( 'indentation retention', () => {
  			it( 'should work when indentation is with spaces', () => {
  				setModelData( model, '<codeBlock language="css">foo[]</codeBlock>' );
  
  				model.change( writer => {
  					// <codeBlock language="css">  foo[]</codeBlock>
  					writer.insertText( '  ', model.document.getRoot().getChild( 0 ), 0 );
  				} );
  
  				viewDoc.fire( 'enter', getEvent() );
  
  				expect( getModelData( model ) ).to.equal(
  					'<codeBlock language="css">  foo<softBreak></softBreak>  []</codeBlock>' );
  
  				editor.execute( 'undo' );
  
  				expect( getModelData( model ) ).to.equal( '<codeBlock language="css">  foo[]</codeBlock>' );
  			} );
  
  			it( 'should work when indentation is with tabs', () => {
  				setModelData( model, '<codeBlock language="css">foo[]</codeBlock>' );
  
  				model.change( writer => {
  					// <codeBlock language="css">	foo[]</codeBlock>
  					writer.insertText( '	', model.document.getRoot().getChild( 0 ), 0 );
  				} );
  
  				viewDoc.fire( 'enter', getEvent() );
  
  				expect( getModelData( model ) ).to.equal(
  					'<codeBlock language="css">	foo<softBreak></softBreak>	[]</codeBlock>' );
  
  				editor.execute( 'undo' );
  
  				expect( getModelData( model ) ).to.equal( '<codeBlock language="css">	foo[]</codeBlock>' );
  			} );
  
  			it( 'should retain only the last line', () => {
  				setModelData( model, '<codeBlock language="css">foo<softBreak></softBreak>bar[]</codeBlock>' );
  
  				model.change( writer => {
  					// <codeBlock language="css">  foo<softBreak></softBreak>	bar[]</codeBlock>
  					writer.insertText( '	', model.document.getRoot().getChild( 0 ), 4 );
  					writer.insertText( '  ', model.document.getRoot().getChild( 0 ), 0 );
  				} );
  
  				viewDoc.fire( 'enter', getEvent() );
  
  				expect( getModelData( model ) ).to.equal(
  					'<codeBlock language="css">  foo<softBreak></softBreak>	bar<softBreak></softBreak>	[]</codeBlock>' );
  
  				editor.execute( 'undo' );
  
  				expect( getModelData( model ) ).to.equal(
  					'<codeBlock language="css">  foo<softBreak></softBreak>	bar[]</codeBlock>' );
  			} );
  
  			it( 'should retain when the selection is non–collapsed', () => {
  				setModelData( model, '<codeBlock language="css">f[o]o</codeBlock>' );
  
  				model.change( writer => {
  					// <codeBlock language="css">    f[o]o</codeBlock>
  					writer.insertText( '    ', model.document.getRoot().getChild( 0 ), 0 );
  				} );
  
  				viewDoc.fire( 'enter', getEvent() );
  
  				expect( getModelData( model ) ).to.equal(
  					'<codeBlock language="css">    f<softBreak></softBreak>    []o</codeBlock>' );
  
  				editor.execute( 'undo' );
  
  				expect( getModelData( model ) ).to.equal( '<codeBlock language="css">    f[o]o</codeBlock>' );
  			} );
  
  			it( 'should consider only leading white-spaces', () => {
  				setModelData( model, '<codeBlock language="css">foo[]</codeBlock>' );
  
  				model.change( writer => {
  					// <codeBlock language="css">  foo []</codeBlock>
  					writer.insertText( ' ', model.document.getRoot().getChild( 0 ), 3 );
  					writer.insertText( '  ', model.document.getRoot().getChild( 0 ), 0 );
  				} );
  
  				viewDoc.fire( 'enter', getEvent() );
  
  				expect( getModelData( model ) ).to.equal(
  					'<codeBlock language="css">  foo <softBreak></softBreak>  []</codeBlock>' );
  
  				editor.execute( 'undo' );
  
  				expect( getModelData( model ) ).to.equal( '<codeBlock language="css">  foo []</codeBlock>' );
  			} );
  
  			it( 'should not work when there is some non-whitespace character', () => {
  				setModelData( model, '<codeBlock language="css">foo[]</codeBlock>' );
  
  				model.change( writer => {
  					// <codeBlock language="css">foo   []</codeBlock>
  					writer.insertText( '   ', model.document.getRoot().getChild( 0 ), 3 );
  				} );
  
  				viewDoc.fire( 'enter', getEvent() );
  
  				expect( getModelData( model ) ).to.equal(
  					'<codeBlock language="css">foo   <softBreak></softBreak>[]</codeBlock>' );
  			} );
  		} );
  
  		describe( 'leaving block using the enter key', () => {
  			describe( 'leaving the block end', () => {
  				it( 'should leave the block when pressed twice at the end', () => {
  					const spy = sinon.spy( editor.editing.view, 'scrollToTheSelection' );
  
  					setModelData( model, '<codeBlock language="css">foo[]</codeBlock>' );
  
  					viewDoc.fire( 'enter', getEvent() );
  
  					expect( getModelData( model ) ).to.equal(
  						'<codeBlock language="css">foo<softBreak></softBreak>[]</codeBlock>' );
  
  					viewDoc.fire( 'enter', getEvent() );
  
  					expect( getModelData( model ) ).to.equal(
  						'<codeBlock language="css">foo</codeBlock>' +
  						'<paragraph>[]</paragraph>'
  					);
  
  					sinon.assert.calledOnce( spy );
  
  					editor.execute( 'undo' );
  					expect( getModelData( model ) ).to.equal(
  						'<codeBlock language="css">foo<softBreak></softBreak>[]</codeBlock>' );
  
  					editor.execute( 'undo' );
  					expect( getModelData( model ) ).to.equal( '<codeBlock language="css">foo[]</codeBlock>' );
  				} );
  
  				it( 'should not leave the block when the selection is not collapsed', () => {
  					setModelData( model, '<codeBlock language="css">f[oo<softBreak></softBreak>]</codeBlock>' );
  
  					viewDoc.fire( 'enter', getEvent() );
  
  					expect( getModelData( model ) ).to.equal(
  						'<codeBlock language="css">f<softBreak></softBreak>[]</codeBlock>' );
  				} );
  
  				it( 'should not leave the block when pressed twice when in the middle of the code', () => {
  					setModelData( model, '<codeBlock language="css">fo[]o</codeBlock>' );
  
  					viewDoc.fire( 'enter', getEvent() );
  
  					expect( getModelData( model ) ).to.equal(
  						'<codeBlock language="css">fo<softBreak></softBreak>[]o</codeBlock>' );
  
  					viewDoc.fire( 'enter', getEvent() );
  
  					expect( getModelData( model ) ).to.equal(
  						'<codeBlock language="css">fo<softBreak></softBreak><softBreak></softBreak>[]o</codeBlock>' );
  				} );
  
  				it( 'should not leave the block when pressed twice at the beginning of the code', () => {
  					setModelData( model, '<codeBlock language="css">[]foo</codeBlock>' );
  
  					viewDoc.fire( 'enter', getEvent() );
  
  					expect( getModelData( model ) ).to.equal(
  						'<codeBlock language="css"><softBreak></softBreak>[]foo</codeBlock>' );
  
  					viewDoc.fire( 'enter', getEvent() );
  
  					expect( getModelData( model ) ).to.equal(
  						'<codeBlock language="css"><softBreak></softBreak><softBreak></softBreak>[]foo</codeBlock>' );
  				} );
  
  				it( 'should not leave the block when pressed shift+enter twice at the end of the code', () => {
  					setModelData( model, '<codeBlock language="css">foo<softBreak></softBreak>[]</codeBlock>' );
  
  					viewDoc.fire( 'enter', getEvent( { isSoft: true } ) );
  
  					expect( getModelData( model ) ).to.equal(
  						'<codeBlock language="css">foo<softBreak></softBreak><softBreak></softBreak>[]</codeBlock>' );
  				} );
  
  				it( 'should clean up the last line if has white–space characters only', () => {
  					setModelData( model, '<codeBlock language="css">foo<softBreak></softBreak>[]</codeBlock>' );
  
  					model.change( writer => {
  						// <codeBlock language="css">foo<softBreak></softBreak>  []</codeBlock>
  						writer.insertText( '  ', model.document.getRoot().getChild( 0 ), 4 );
  					} );
  
  					viewDoc.fire( 'enter', getEvent() );
  
  					expect( getModelData( model ) ).to.equal(
  						'<codeBlock language="css">foo</codeBlock><paragraph>[]</paragraph>' );
  				} );
  			} );
  
  			describe( 'leaving the block at the beginning', () => {
  				it( 'should leave the block when pressed at the beginning in a new line', () => {
  					const spy = sinon.spy( editor.editing.view, 'scrollToTheSelection' );
  
  					setModelData( model, '<codeBlock language="css">[]<softBreak></softBreak>foo</codeBlock>' );
  
  					viewDoc.fire( 'enter', getEvent() );
  
  					expect( getModelData( model ) ).to.equal(
  						'<paragraph>[]</paragraph>' +
  						'<codeBlock language="css">foo</codeBlock>'
  					);
  
  					sinon.assert.calledOnce( spy );
  
  					editor.execute( 'undo' );
  					expect( getModelData( model ) ).to.equal(
  						'<codeBlock language="css">[]<softBreak></softBreak>foo</codeBlock>' );
  				} );
  
  				it( 'should not leave the block when the selection is not collapsed (#1)', () => {
  					setModelData( model, '<codeBlock language="css">[f]<softBreak></softBreak>oo</codeBlock>' );
  
  					viewDoc.fire( 'enter', getEvent() );
  
  					expect( getModelData( model ) ).to.equal(
  						'<codeBlock language="css"><softBreak></softBreak>[]<softBreak></softBreak>oo</codeBlock>' );
  				} );
  
  				it( 'should not leave the block when the selection is not collapsed (#2)', () => {
  					setModelData( model, '<codeBlock language="css">[<softBreak></softBreak>oo]</codeBlock>' );
  
  					viewDoc.fire( 'enter', getEvent() );
  
  					expect( getModelData( model ) ).to.equal(
  						'<codeBlock language="css"><softBreak></softBreak>[]</codeBlock>' );
  				} );
  
  				it( 'should not leave the block when pressed shift+enter at the beginning of the code', () => {
  					setModelData( model, '<codeBlock language="css">[]<softBreak></softBreak>foo</codeBlock>' );
  
  					viewDoc.fire( 'enter', getEvent( { isSoft: true } ) );
  
  					expect( getModelData( model ) ).to.equal(
  						'<codeBlock language="css"><softBreak></softBreak>[]<softBreak></softBreak>foo</codeBlock>' );
  				} );
  
  				it( 'should not leave the block when there is some text after the selection', () => {
  					setModelData( model, '<codeBlock language="css">[]foo<softBreak></softBreak>foo</codeBlock>' );
  
  					viewDoc.fire( 'enter', getEvent() );
  
  					expect( getModelData( model ) ).to.equal(
  						'<codeBlock language="css"><softBreak></softBreak>[]foo<softBreak></softBreak>foo</codeBlock>' );
  				} );
  
  				it( 'should not leave the block when there is some text before the selection', () => {
  					setModelData( model, '<codeBlock language="css">[]<softBreak></softBreak>foo</codeBlock>' );
  
  					// <codeBlock language="css">    []<softBreak></softBreak>foo</codeBlock>
  					model.change( writer => {
  						writer.insertText( '    ', model.document.getRoot().getChild( 0 ), 0 );
  					} );
  
  					viewDoc.fire( 'enter', getEvent() );
  
  					// Extra spaces before "[]" come from the indentation retention mechanism.
  					expect( getModelData( model ) ).to.equal(
  						'<codeBlock language="css">    <softBreak></softBreak>    []<softBreak></softBreak>foo</codeBlock>' );
  				} );
  			} );
  		} );
  
  		function getEvent( data = {} ) {
  			return new DomEventData( viewDoc, {
  				preventDefault: sinon.spy()
  			}, data );
  		}
  	} );
  
  	describe( 'indent plugin integration', () => {
  		it( 'should add indent code block command to indent command', () => {
  			const element = document.createElement( 'div' );
  			document.body.appendChild( element );
  
  			return ClassicTestEditor
  				.create( element, {
  					plugins: [ CodeBlockEditing, AlignmentEditing, BoldEditing, Enter, Paragraph, Undo, IndentEditing ]
  				} )
  				.then( newEditor => {
  					const editor = newEditor;
  
  					const indentCodeBlockCommand = editor.commands.get( 'indentCodeBlock' );
  					const indentCommand = editor.commands.get( 'indent' );
  					const spy = sinon.spy( indentCodeBlockCommand, 'execute' );
  
  					indentCodeBlockCommand.isEnabled = true;
  					indentCommand.execute();
  
  					sinon.assert.calledOnce( spy );
  
  					element.remove();
  
  					return editor.destroy();
  				} );
  		} );
  
  		it( 'should add outdent code block command to outdent command', () => {
  			return ClassicTestEditor
  				.create( element, {
  					plugins: [ CodeBlockEditing, AlignmentEditing, BoldEditing, Enter, Paragraph, Undo, IndentEditing ]
  				} )
  				.then( newEditor => {
  					const editor = newEditor;
  
  					const outdentCodeBlockCommand = editor.commands.get( 'outdentCodeBlock' );
  					const outdentCommand = editor.commands.get( 'outdent' );
  					const spy = sinon.spy( outdentCodeBlockCommand, 'execute' );
  
  					outdentCodeBlockCommand.isEnabled = true;
  					outdentCommand.execute();
  
  					sinon.assert.calledOnce( spy );
  
  					element.remove();
  
  					return editor.destroy();
  				} );
  		} );
  
  		// See #5910.
  		it( 'should allow to indent an entire code block with at least two lines', () => {
  			const element = document.createElement( 'div' );
  			document.body.appendChild( element );
  
  			return ClassicTestEditor
  				.create( element, {
  					plugins: [ CodeBlockEditing, AlignmentEditing, IndentEditing ]
  				} )
  				.then( newEditor => {
  					const editor = newEditor;
  
  					editor.setData( '<pre><code class="language-css">\t\tx\n\tx</code></pre>' );
  					editor.model.change( writer => {
  						writer.setSelection( editor.model.document.getRoot().getChild( 0 ), 'on' );
  					} );
  					editor.execute( 'indent' );
  
  					expect( getModelData( editor.model ) ).to.equal(
  						'<codeBlock language="css">[\t\t\tx<softBreak></softBreak>\t\tx]</codeBlock>'
  					);
  
  					element.remove();
  
  					return editor.destroy();
  				} );
  		} );
  	} );
  
  	describe( 'editing pipeline m -> v', () => {
  		it( 'should convert empty codeBlock to empty pre tag', () => {
  			setModelData( model, '<codeBlock language="plaintext"></codeBlock>' );
  
  			expect( getViewData( view ) ).to.equal(
  				'<pre data-language="Plain text" spellcheck="false">' +
  					'<code class="language-plaintext">[]</code>' +
  				'</pre>' );
  		} );
  
  		it( 'should convert non-empty codeBlock to pre tag', () => {
  			setModelData( model, '<codeBlock language="plaintext">Foo</codeBlock>' );
  
  			expect( getViewData( view ) ).to.equal(
  				'<pre data-language="Plain text" spellcheck="false">' +
  					'<code class="language-plaintext">{}Foo</code>' +
  				'</pre>' );
  		} );
  
  		it( 'should convert codeBlock with softBreaks to pre tag #1', () => {
  			setModelData( model,
  				'<codeBlock language="plaintext">' +
  					'Foo<softBreak></softBreak>' +
  					'Bar<softBreak></softBreak>' +
  					'Biz' +
  				'</codeBlock>'
  			);
  
  			expect( getViewData( view ) ).to.equal(
  				'<pre data-language="Plain text" spellcheck="false">' +
  					'<code class="language-plaintext">{}Foo<br></br>Bar<br></br>Biz</code>' +
  				'</pre>' );
  		} );
  
  		it( 'should convert codeBlock with softBreaks to pre tag #2', () => {
  			setModelData( model,
  				'<codeBlock language="plaintext">' +
  					'<softBreak></softBreak>' +
  					'<softBreak></softBreak>' +
  					'Foo' +
  					'<softBreak></softBreak>' +
  					'<softBreak></softBreak>' +
  				'</codeBlock>'
  			);
  
  			expect( getViewData( view ) ).to.equal(
  				'<pre data-language="Plain text" spellcheck="false">' +
  					'<code class="language-plaintext">[]<br></br><br></br>Foo<br></br><br></br></code>' +
  				'</pre>' );
  		} );
  
  		it( 'should use localized "Plain text" label', () => {
  			const element = document.createElement( 'div' );
  			document.body.appendChild( element );
  
  			return ClassicTestEditor
  				.create( element, {
  					language: 'pl',
  					plugins: [ CodeBlockEditing, AlignmentEditing, BoldEditing, Enter, Paragraph ]
  				} )
  				.then( newEditor => {
  					const editor = newEditor;
  					const model = editor.model;
  					const view = editor.editing.view;
  
  					setModelData( model,
  						'<codeBlock language="plaintext">foo</codeBlock>'
  					);
  
  					expect( getViewData( view ) ).to.equal(
  						'<pre data-language="Zwykły tekst" spellcheck="false">' +
  							'<code class="language-plaintext">{}foo</code>' +
  						'</pre>' );
  
  					element.remove();
  
  					return editor.destroy();
  				} );
  		} );
  
  		it( 'should not set the class on the <code> if it was configured so', () => {
  			const element = document.createElement( 'div' );
  			document.body.appendChild( element );
  
  			return ClassicTestEditor
  				.create( element, {
  					plugins: [ CodeBlockEditing, AlignmentEditing, BoldEditing, Enter, Paragraph ],
  					codeBlock: {
  						languages: [
  							{ language: 'cpp', label: 'C++', class: '' }
  						]
  					}
  				} )
  				.then( newEditor => {
  					const editor = newEditor;
  					const model = editor.model;
  					const view = editor.editing.view;
  
  					setModelData( model, '<codeBlock language="cpp">foo</codeBlock>' );
  
  					expect( getViewData( view ) ).to.equal(
  						'<pre data-language="C++" spellcheck="false">' +
  							'<code>{}foo</code>' +
  						'</pre>' );
  
  					element.remove();
  
  					return editor.destroy();
  				} );
  		} );
  	} );
  
  	describe( 'data pipeline m -> v conversion ', () => {
  		it( 'should convert empty codeBlock to empty pre tag', () => {
  			setModelData( model, '<codeBlock language="plaintext"></codeBlock>' );
  
  			expect( editor.getData( { trim: 'none' } ) ).to.equal( '<pre><code class="language-plaintext">&nbsp;</code></pre>' );
  		} );
  
  		it( 'should convert non-empty codeBlock to pre tag', () => {
  			setModelData( model, '<codeBlock language="plaintext">Foo</codeBlock>' );
  
  			expect( editor.getData() ).to.equal( '<pre><code class="language-plaintext">Foo</code></pre>' );
  		} );
  
  		it( 'should convert codeBlock with softBreaks to pre tag #1', () => {
  			setModelData( model,
  				'<codeBlock language="plaintext">' +
  					'Foo<softBreak></softBreak>' +
  					'Bar<softBreak></softBreak>' +
  					'Biz' +
  				'</codeBlock>' +
  				'<paragraph>A<softBreak></softBreak>B</paragraph>'
  			);
  
  			expect( editor.getData() ).to.equal( '<pre><code class="language-plaintext">Foo\nBar\nBiz</code></pre><p>A<br>B</p>' );
  		} );
  
  		it( 'should convert codeBlock with softBreaks to pre tag #2', () => {
  			setModelData( model,
  				'<codeBlock language="plaintext">' +
  					'<softBreak></softBreak>' +
  					'<softBreak></softBreak>' +
  					'Foo' +
  					'<softBreak></softBreak>' +
  					'<softBreak></softBreak>' +
  				'</codeBlock>'
  			);
  
  			expect( editor.getData() ).to.equal( '<pre><code class="language-plaintext">\n\nFoo\n\n</code></pre>' );
  		} );
  
  		it( 'should convert codeBlock with html content', () => {
  			setModelData( model, '<codeBlock language="plaintext">[]</codeBlock>' );
  
  			model.change( writer => writer.insertText( '<div><p>Foo</p></div>', model.document.selection.getFirstPosition() ) );
  
  			expect( editor.getData() ).to.equal(
  				'<pre>' +
  					'<code class="language-plaintext">&lt;div&gt;&lt;p&gt;Foo&lt;/p&gt;&lt;/div&gt;</code>' +
  				'</pre>' );
  		} );
  
  		it( 'should be overridable', () => {
  			editor.data.downcastDispatcher.on( 'insert:codeBlock', ( evt, data, api ) => {
  				const targetViewPosition = api.mapper.toViewPosition( model.createPositionBefore( data.item ) );
  				const code = api.writer.createContainerElement( 'code' );
  
  				api.consumable.consume( data.item, 'insert' );
  				api.writer.insert( targetViewPosition, code );
  				api.mapper.bindElements( data.item, code );
  			}, { priority: 'high' } );
  
  			editor.data.downcastDispatcher.on( 'insert:softBreak', ( evt, data, api ) => {
  				const position = api.mapper.toViewPosition( model.createPositionBefore( data.item ) );
  
  				api.consumable.consume( data.item, 'insert' );
  				api.writer.insert( position, api.writer.createText( '\n' ) );
  			}, { priority: 'highest' } );
  
  			setModelData( model, '<codeBlock language="plaintext">Foo<softBreak></softBreak>Bar</codeBlock>' );
  
  			expect( editor.getData() ).to.equal( '<code>Foo\nBar</code>' );
  		} );
  
  		it( 'should not set the class on the <code> if it was configured so', () => {
  			const element = document.createElement( 'div' );
  			document.body.appendChild( element );
  
  			return ClassicTestEditor
  				.create( element, {
  					plugins: [ CodeBlockEditing, AlignmentEditing, BoldEditing, Enter, Paragraph ],
  					codeBlock: {
  						languages: [
  							{ language: 'cpp', label: 'C++', class: '' }
  						]
  					}
  				} )
  				.then( newEditor => {
  					const editor = newEditor;
  					const model = editor.model;
  
  					setModelData( model, '<codeBlock language="cpp">foo</codeBlock>' );
  					expect( editor.getData() ).to.equal( '<pre><code>foo</code></pre>' );
  
  					element.remove();
  
  					return editor.destroy();
  				} );
  		} );
  
  		it( 'should set multiple classes on the <code> if it was configured so', () => {
  			const element = document.createElement( 'div' );
  			document.body.appendChild( element );
  
  			return ClassicTestEditor
  				.create( element, {
  					plugins: [ CodeBlockEditing, AlignmentEditing, BoldEditing, Enter, Paragraph ],
  					codeBlock: {
  						languages: [
  							{ language: 'javascript', label: 'JavaScript', class: 'language-js' },
  							{ language: 'swift', label: 'Swift', class: 'swift ios-code' }
  						]
  					}
  				} )
  				.then( editor => {
  					const model = editor.model;
  
  					setModelData( model,
  						'<codeBlock language="swift">foo</codeBlock>' +
  						'<codeBlock language="javascript">foo</codeBlock>'
  					);
  					expect( editor.getData() ).to.equal(
  						'<pre><code class="swift ios-code">foo</code></pre>' +
  						'<pre><code class="language-js">foo</code></pre>'
  					);
  
  					element.remove();
  
  					return editor.destroy();
  				} );
  		} );
  	} );
  
  	describe( 'data pipeline v -> m conversion ', () => {
  		it( 'should not convert empty pre tag to code block', () => {
  			editor.setData( '<pre></pre>' );
  
  			expect( getModelData( model ) ).to.equal( '<paragraph>[]</paragraph>' );
  		} );
  
  		it( 'should not convert pre with no code child to code block', () => {
  			editor.setData( '<pre><samp></samp></pre>' );
  
  			expect( getModelData( model ) ).to.equal( '<paragraph>[]</paragraph>' );
  		} );
  
  		it( 'should convert pre > code to code block', () => {
  			editor.setData( '<pre><code></code></pre>' );
  
  			expect( getModelData( model ) ).to.equal( '<codeBlock language="plaintext">[]</codeBlock>' );
  		} );
  
  		it( 'should convert pre > code with multi-line text to code block #1', () => {
  			editor.setData( '<pre><code>foo\nbar</code></pre>' );
  
  			expect( getModelData( model ) ).to.equal(
  				'<codeBlock language="plaintext">[]' +
  					'foo' +
  					'<softBreak></softBreak>' +
  					'bar' +
  				'</codeBlock>'
  			);
  		} );
  
  		it( 'should convert pre > code with multi-line text to code block #2', () => {
  			editor.setData( '<pre><code>\n\nfoo\n\n</code></pre>' );
  
  			expect( getModelData( model ) ).to.equal(
  				'<codeBlock language="plaintext">[]' +
  					'<softBreak></softBreak>' +
  					'<softBreak></softBreak>' +
  					'foo' +
  					'<softBreak></softBreak>' +
  					'<softBreak></softBreak>' +
  				'</codeBlock>'
  			);
  		} );
  
  		// Undesired by expected. There is an issue with identifying the correct filler type.
  		// <code> is inline, so dom-to-view converter expects an inline filler.
  		it( 'should convert pre > code with only &nbsp; inside to a codeBlock with &nbsp;', () => {
  			editor.setData( '<pre><code>&nbsp;</code></pre>' );
  
  			expect( getModelData( model ) ).to.equal(
  				'<codeBlock language="plaintext">[]\u00a0</codeBlock>'
  			);
  		} );
  
  		it( 'should convert pre > code with HTML inside', () => {
  			editor.setData( '<pre><code><p>Foo</p>\n<p>Bar</p></code></pre>' );
  
  			expect( getModelData( model ) ).to.equal(
  				'<codeBlock language="plaintext">[]' +
  					'Foo' +
  					'<softBreak></softBreak>' +
  					'Bar' +
  				'</codeBlock>'
  			);
  		} );
  
  		it( 'should convert pre > code tag with HTML and nested pre > code tag and use only the text content of invalid HTML tags', () => {
  			editor.setData( '<pre><code><p>Foo</p><pre><code>Bar</code></pre><p>Biz</p></code></pre>' );
  
  			expect( getModelData( model ) ).to.equal(
  				'<codeBlock language="plaintext">[]FooBarBiz</codeBlock>' );
  		} );
  
  		it( 'should convert pre > code tag with escaped html content', () => {
  			editor.setData( '<pre><code>&lt;div&gt;&lt;p&gt;Foo&apos;s&amp;&quot;bar&quot;&lt;/p&gt;&lt;/div&gt;</code></pre>' );
  
  			expect( getModelData( model ) ).to.equal( '<codeBlock language="plaintext">[]<div><p>Foo\'s&"bar"</p></div></codeBlock>' );
  		} );
  
  		it( 'should be overridable', () => {
  			editor.data.upcastDispatcher.on( 'element:pre', ( evt, data, api ) => {
  				const modelItem = api.writer.createElement( 'codeBlock' );
  
  				api.writer.appendText( 'Hello World!', modelItem );
  				api.writer.insert( modelItem, data.modelCursor );
  				api.consumable.consume( data.viewItem, { name: true } );
  
  				data.modelCursor = api.writer.createPositionAfter( modelItem );
  				data.modelRange = api.writer.createRangeOn( modelItem );
  			}, { priority: 'high' } );
  
  			editor.setData( '<pre><code>Foo Bar</code></pre>' );
  
  			expect( getModelData( model ) ).to.equal( '<codeBlock>[]Hello World!</codeBlock>' );
  		} );
  
  		it( 'should split parents to correctly upcast the code block', () => {
  			editor.setData( '<p>foo<pre><code>x</code></pre>bar</p>' );
  
  			// Note: The empty <paragraph> should not be here. It's a conversion/auto–paragraphing bug.
  			expect( getModelData( model ) ).to.equal(
  				'<paragraph>[]foo</paragraph>' +
  				'<codeBlock language="plaintext">x</codeBlock>' +
  				'<paragraph>bar</paragraph>' +
  				'<paragraph></paragraph>' );
  		} );
  
  		it( 'should upcast two code blocks in a row (#1)', () => {
  			editor.setData( '<pre><code>foo</code></pre><pre><code>bar</code></pre>' );
  
  			expect( getModelData( model ) ).to.equal(
  				'<codeBlock language="plaintext">[]foo</codeBlock><codeBlock language="plaintext">bar</codeBlock>' );
  		} );
  
  		it( 'should upcast two code blocks in a row (#2)', () => {
  			editor.setData( `<pre><code>foo</code></pre>
  				<pre><code>bar</code></pre>` );
  
  			// Note: The empty <paragraph> in between should not be here. It's a conversion/auto–paragraphing bug.
  			expect( getModelData( model ) ).to.equal(
  				'<codeBlock language="plaintext">[]foo</codeBlock>' +
  				'<paragraph> </paragraph>' +
  				'<codeBlock language="plaintext">bar</codeBlock>' );
  		} );
  
  		it( 'should not convert when modelCursor and its ancestors disallow to insert codeBlock', () => {
  			model.document.createRoot( '$title', 'title' );
  
  			model.schema.register( '$title', {
  				disallow: '$block',
  				allow: 'inline'
  			} );
  
  			editor.data.set( { title: '<pre><code>foo</code></pre>' } );
  
  			expect( getModelData( model, { rootName: 'title', withoutSelection: true } ) ).to.equal( '' );
  		} );
  
  		describe( 'config.codeBlock.languages', () => {
  			it( 'should be respected when upcasting', () => {
  				return ClassicTestEditor.create(
  					'<pre><code class="language-foo">bar</code></pre>' +
  					'<pre><code class="language-bar">baz</code></pre>' +
  					'<pre><code class="qux">qux</code></pre>',
  					{
  						plugins: [ CodeBlockEditing ],
  						codeBlock: {
  							languages: [
  								{ language: 'foo', label: 'Foo' },
  								{ language: 'bar', label: 'Bar' },
  								{ language: 'qux', label: 'Qux', class: 'qux' }
  							]
  						}
  					} )
  					.then( editor => {
  						model = editor.model;
  
  						expect( getModelData( model ) ).to.equal(
  							'<codeBlock language="foo">[]bar</codeBlock>' +
  							'<codeBlock language="bar">baz</codeBlock>' +
  							'<codeBlock language="qux">qux</codeBlock>'
  						);
  
  						return editor.destroy();
  					} );
  			} );
  
  			it( 'should be respected when upcasting and a language has an empty class configured', () => {
  				return ClassicTestEditor.create(
  					'<pre><code class="language-foo">bar</code></pre>' +
  					'<pre><code class="language-bar">baz</code></pre>' +
  					'<pre><code>qux</code></pre>',
  					{
  						plugins: [ CodeBlockEditing ],
  						codeBlock: {
  							languages: [
  								{ language: 'foo', label: 'Foo' },
  								{ language: 'bar', label: 'Bar' },
  								{ language: 'qux', label: 'Qux', class: '' }
  							]
  						}
  					} )
  					.then( editor => {
  						model = editor.model;
  
  						expect( getModelData( model ) ).to.equal(
  							'<codeBlock language="foo">[]bar</codeBlock>' +
  							'<codeBlock language="bar">baz</codeBlock>' +
  							'<codeBlock language="qux">qux</codeBlock>'
  						);
  
  						return editor.destroy();
  					} );
  			} );
  
  			it( 'should upcast using the first language if the code in data has no language', () => {
  				return ClassicTestEditor
  					.create( '<pre><code>bar</code></pre>', {
  						plugins: [ CodeBlockEditing ],
  						codeBlock: {
  							languages: [
  								{ language: 'foo', label: 'Foo' },
  								{ language: 'bar', label: 'Bar' }
  							]
  						}
  					} )
  					.then( editor => {
  						model = editor.model;
  
  						expect( getModelData( model ) ).to.equal( '<codeBlock language="foo">[]bar</codeBlock>' );
  
  						return editor.destroy();
  					} );
  			} );
  
  			it( 'should upast using the first language if the code in data has an invalid language', () => {
  				return ClassicTestEditor
  					.create( '<pre><code class="baz">bar</code></pre>', {
  						plugins: [ CodeBlockEditing ],
  						codeBlock: {
  							languages: [
  								{ language: 'foo', label: 'Foo' },
  								{ language: 'bar', label: 'Bar' }
  							]
  						}
  					} )
  					.then( editor => {
  						model = editor.model;
  
  						expect( getModelData( model ) ).to.equal( '<codeBlock language="foo">[]bar</codeBlock>' );
  
  						return editor.destroy();
  					} );
  			} );
  
  			// https://github.com/ckeditor/ckeditor5/issues/5924
  			it( 'should upcast using only the first class from config as a defining language class', () => {
  				// "baz" is the first class configured for the "baz" language.
  				return ClassicTestEditor.create( '<pre><code class="baz">foo</code></pre>', {
  					plugins: [ CodeBlockEditing ],
  					codeBlock: {
  						languages: [
  							{ language: 'foo', label: 'Foo', class: 'foo' },
  							{ language: 'baz', label: 'Baz', class: 'baz bar' },
  							{ language: 'qux', label: 'Qux', class: 'qux' }
  						]
  					}
  				} ).then( editor => {
  					model = editor.model;
  
  					expect( getModelData( model ) ).to.equal( '<codeBlock language="baz">[]foo</codeBlock>' );
  
  					return editor.destroy();
  				} );
  			} );
  
  			// https://github.com/ckeditor/ckeditor5/issues/5924
  			it( 'should not upcast if the class is not the first (defining) language class', () => {
  				// "bar" is the second class configured for the "baz" language.
  				return ClassicTestEditor.create( '<pre><code class="bar">foo</code></pre>', {
  					plugins: [ CodeBlockEditing ],
  					codeBlock: {
  						languages: [
  							{ language: 'foo', label: 'Foo', class: 'foo' },
  							{ language: 'baz', label: 'Baz', class: 'baz bar' },
  							{ language: 'qux', label: 'Qux', class: 'qux' }
  						]
  					}
  				} ).then( editor => {
  					model = editor.model;
  
  					expect( getModelData( model ) ).to.equal( '<codeBlock language="foo">[]foo</codeBlock>' );
  
  					return editor.destroy();
  				} );
  			} );
  		} );
  	} );
  
  	describe( 'clipboard integration', () => {
  		it( 'should not intercept input when selection anchored outside any code block', () => {
  			setModelData( model, '<paragraph>f[]oo</paragraph>' );
  
  			const dataTransferMock = {
  				getData: sinon.stub().withArgs( 'text/plain' ).returns( 'bar' )
  			};
  
  			viewDoc.fire( 'clipboardInput', {
  				dataTransfer: dataTransferMock,
  				stop: sinon.spy()
  			} );
  
  			expect( getModelData( model ) ).to.equal( '<paragraph>f[]oo</paragraph>' );
  			sinon.assert.notCalled( dataTransferMock.getData );
  		} );
  
  		it( 'should intercept input when selection anchored in the code block', () => {
  			setModelData( model, '<codeBlock language="css">f[o]o</codeBlock>' );
  
  			const dataTransferMock = {
  				getData: sinon.stub().withArgs( 'text/plain' ).returns( 'bar\nbaz\n' )
  			};
  
  			viewDoc.fire( 'clipboardInput', {
  				dataTransfer: dataTransferMock,
  				stop: sinon.spy()
  			} );
  
  			expect( getModelData( model ) ).to.equal(
  				'<codeBlock language="css">' +
  					'fbar' +
  					'<softBreak></softBreak>' +
  					'baz' +
  					'<softBreak></softBreak>' +
  					'[]o' +
  				'</codeBlock>' );
  
  			sinon.assert.calledOnce( dataTransferMock.getData );
  		} );
  
  		describe( 'getSelectedContent()', () => {
  			it( 'should not engage when there is nothing selected', () => {
  				setModelData( model, '<codeBlock language="css">fo[]o<softBreak></softBreak>bar</codeBlock>' );
  
  				expect( stringify( model.getSelectedContent( model.document.selection ) ) ).to.equal( '' );
  			} );
  
  			it( 'should wrap a partial multi-line selection into a code block (#1)', () => {
  				setModelData( model, '<codeBlock language="css">fo[o<softBreak></softBreak>b]ar</codeBlock>' );
  
  				expect( stringify( model.getSelectedContent( model.document.selection ) ) ).to.equal(
  					'<codeBlock language="css">o<softBreak></softBreak>b</codeBlock>'
  				);
  			} );
  
  			it( 'should wrap a partial multi-line selection into a code block (#2)', () => {
  				setModelData( model, '<codeBlock language="css">fo[o<softBreak></softBreak>]bar</codeBlock>' );
  
  				expect( stringify( model.getSelectedContent( model.document.selection ) ) ).to.equal(
  					'<codeBlock language="css">o<softBreak></softBreak></codeBlock>'
  				);
  			} );
  
  			it( 'should wrap a partial multi-line selection into a code block (#3)', () => {
  				setModelData( model, '<codeBlock language="css">[foo<softBreak></softBreak>bar]</codeBlock>' );
  
  				expect( stringify( model.getSelectedContent( model.document.selection ) ) ).to.equal(
  					'<codeBlock language="css">foo<softBreak></softBreak>bar</codeBlock>'
  				);
  			} );
  
  			it( 'should wrap a complete single-line selection into a code block', () => {
  				setModelData( model, '<codeBlock language="css">[foo]</codeBlock>' );
  
  				expect( stringify( model.getSelectedContent( model.document.selection ) ) ).to.equal(
  					'<codeBlock language="css">foo</codeBlock>'
  				);
  			} );
  
  			it( 'should wrap a partial single-line selection into an inline code (#1)', () => {
  				model.schema.extend( '$text', {
  					allowAttributes: 'code'
  				} );
  
  				setModelData( model, '<codeBlock language="css">[fo]o<softBreak></softBreak>bar</codeBlock>' );
  
  				expect( stringify( model.getSelectedContent( model.document.selection ) ) ).to.equal(
  					'<$text code="true">fo</$text>'
  				);
  			} );
  
  			it( 'should wrap a partial single-line selection into an inline code (#2)', () => {
  				model.schema.extend( '$text', {
  					allowAttributes: 'code'
  				} );
  
  				setModelData( model, '<codeBlock language="css">foo<softBreak></softBreak>b[a]r</codeBlock>' );
  
  				expect( stringify( model.getSelectedContent( model.document.selection ) ) ).to.equal(
  					'<$text code="true">a</$text>'
  				);
  			} );
  
  			it( 'should now wrap a partial single-line selection into an inline code when the attribute is disallowed', () => {
  				setModelData( model, '<codeBlock language="css">foo<softBreak></softBreak>b[a]r</codeBlock>' );
  
  				expect( stringify( model.getSelectedContent( model.document.selection ) ) ).to.equal( 'a' );
  			} );
  
  			it( 'should preserve a code block in a cross-selection (#1)', () => {
  				setModelData( model,
  					'<paragraph>[x</paragraph><codeBlock language="css">fo]o<softBreak></softBreak>bar</codeBlock>' );
  
  				expect( stringify( model.getSelectedContent( model.document.selection ) ) ).to.equal(
  					'<paragraph>x</paragraph><codeBlock language="css">fo</codeBlock>'
  				);
  			} );
  
  			it( 'should preserve a code block in a cross-selection (#2)', () => {
  				setModelData( model,
  					'<paragraph>[x</paragraph><codeBlock language="css">foo<softBreak></softBreak>b]ar</codeBlock>' );
  
  				expect( stringify( model.getSelectedContent( model.document.selection ) ) ).to.equal(
  					'<paragraph>x</paragraph><codeBlock language="css">foo<softBreak></softBreak>b</codeBlock>'
  				);
  			} );
  
  			it( 'should preserve a code block in a cross-selection (#3)', () => {
  				setModelData( model,
  					'<codeBlock language="css">foo<softBreak></softBreak>b[ar</codeBlock><paragraph>x]</paragraph>' );
  
  				expect( stringify( model.getSelectedContent( model.document.selection ) ) ).to.equal(
  					'<codeBlock language="css">ar</codeBlock><paragraph>x</paragraph>'
  				);
  			} );
  		} );
  	} );
  } );
  