text: /**
   * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.
   * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license
   */
  
  import ModelTestEditor from '@ckeditor/ckeditor5-core/tests/_utils/modeltesteditor';
  import Paragraph from '@ckeditor/ckeditor5-paragraph/src/paragraph';
  import testUtils from '@ckeditor/ckeditor5-core/tests/_utils/utils';
  import { getData, setData } from '@ckeditor/ckeditor5-engine/src/dev-utils/model';
  import CKEditorError from '@ckeditor/ckeditor5-utils/src/ckeditorerror';
  
  import TableEditing from '../src/tableediting';
  import TableUtils from '../src/tableutils';
  import { modelTable } from './_utils/utils';
  
  describe( 'TableUtils', () => {
  	let editor, model, root, tableUtils;
  
  	testUtils.createSinonSandbox();
  
  	beforeEach( () => {
  		return ModelTestEditor.create( {
  			plugins: [ Paragraph, TableEditing, TableUtils ]
  		} ).then( newEditor => {
  			editor = newEditor;
  			model = editor.model;
  			root = model.document.getRoot( 'main' );
  			tableUtils = editor.plugins.get( TableUtils );
  
  			model.schema.register( 'foo', {
  				allowIn: 'table',
  				allowContentOf: '$block',
  				isLimit: true
  			} );
  			editor.conversion.elementToElement( {
  				view: 'foo',
  				model: 'foo'
  			} );
  		} );
  	} );
  
  	afterEach( () => {
  		return editor.destroy();
  	} );
  
  	describe( '#pluginName', () => {
  		it( 'should provide plugin name', () => {
  			expect( TableUtils.pluginName ).to.equal( 'TableUtils' );
  		} );
  	} );
  
  	describe( 'getCellLocation()', () => {
  		it( 'should return proper table cell location', () => {
  			setData( model, modelTable( [
  				[ { rowspan: 2, colspan: 2, contents: '00[]' }, '02' ],
  				[ '12' ]
  			] ) );
  
  			expect( tableUtils.getCellLocation( root.getNodeByPath( [ 0, 0, 0 ] ) ) ).to.deep.equal( { row: 0, column: 0 } );
  			expect( tableUtils.getCellLocation( root.getNodeByPath( [ 0, 0, 1 ] ) ) ).to.deep.equal( { row: 0, column: 2 } );
  			expect( tableUtils.getCellLocation( root.getNodeByPath( [ 0, 1, 0 ] ) ) ).to.deep.equal( { row: 1, column: 2 } );
  		} );
  	} );
  
  	describe( 'insertRows()', () => {
  		it( 'should be decorated', () => {
  			const spy = sinon.spy();
  
  			setData( model, modelTable( [
  				[ '11[]', '12' ],
  				[ '21', '22' ]
  			] ) );
  
  			tableUtils.on( 'insertRows', spy );
  
  			tableUtils.insertRows( root.getNodeByPath( [ 0 ] ), { at: 1 } );
  
  			expect( getData( model ) ).to.equalMarkup( modelTable( [
  				[ '11[]', '12' ],
  				[ '', '' ],
  				[ '21', '22' ]
  			] ) );
  
  			expect( spy.calledOnce ).to.be.true;
  		} );
  
  		it( 'should insert row in given table at given index', () => {
  			setData( model, modelTable( [
  				[ '11[]', '12' ],
  				[ '21', '22' ]
  			] ) );
  
  			tableUtils.insertRows( root.getNodeByPath( [ 0 ] ), { at: 1 } );
  
  			expect( getData( model ) ).to.equalMarkup( modelTable( [
  				[ '11[]', '12' ],
  				[ '', '' ],
  				[ '21', '22' ]
  			] ) );
  		} );
  
  		it( 'should insert row in given table at default index', () => {
  			setData( model, modelTable( [
  				[ '11[]', '12' ],
  				[ '21', '22' ]
  			] ) );
  
  			tableUtils.insertRows( root.getNodeByPath( [ 0 ] ) );
  
  			expect( getData( model ) ).to.equalMarkup( modelTable( [
  				[ '', '' ],
  				[ '11[]', '12' ],
  				[ '21', '22' ]
  			] ) );
  		} );
  
  		it( 'should update table heading rows attribute when inserting row in headings section', () => {
  			setData( model, modelTable( [
  				[ '11[]', '12' ],
  				[ '21', '22' ],
  				[ '31', '32' ]
  			], { headingRows: 2 } ) );
  
  			tableUtils.insertRows( root.getNodeByPath( [ 0 ] ), { at: 1 } );
  
  			expect( getData( model ) ).to.equalMarkup( modelTable( [
  				[ '11[]', '12' ],
  				[ '', '' ],
  				[ '21', '22' ],
  				[ '31', '32' ]
  			], { headingRows: 3 } ) );
  		} );
  
  		it( 'should not update table heading rows attribute when inserting row after headings section', () => {
  			setData( model, modelTable( [
  				[ '11[]', '12' ],
  				[ '21', '22' ],
  				[ '31', '32' ]
  			], { headingRows: 2 } ) );
  
  			tableUtils.insertRows( root.getNodeByPath( [ 0 ] ), { at: 2 } );
  
  			expect( getData( model ) ).to.equalMarkup( modelTable( [
  				[ '11[]', '12' ],
  				[ '21', '22' ],
  				[ '', '' ],
  				[ '31', '32' ]
  			], { headingRows: 2 } ) );
  		} );
  
  		it( 'should expand rowspan of a cell that overlaps inserted rows', () => {
  			// +----+----+----+----+
  			// | 00      | 02 | 03 |
  			// +----+----+----+----+ <-- heading rows
  			// | 10      | 12 | 13 |
  			// +         +----+----+
  			// |         | 22 | 23 |
  			// +----+----+----+----+
  			//                     ^-- heading columns
  			setData( model, modelTable( [
  				[ { contents: '00', colspan: 2 }, '02', '03' ],
  				[ { contents: '10[]', colspan: 2, rowspan: 2 }, '12', '13' ],
  				[ '22', '23' ]
  			], { headingColumns: 3, headingRows: 1 } ) );
  
  			tableUtils.insertRows( root.getNodeByPath( [ 0 ] ), { at: 2, rows: 3 } );
  
  			// +----+----+----+----+
  			// | 00      | 02 | 03 |
  			// +----+----+----+----+ <-- heading rows
  			// | 10      | 12 | 13 |
  			// +         +----+----+
  			// |         |    |    |
  			// +         +----+----+
  			// |         |    |    |
  			// +         +----+----+
  			// |         |    |    |
  			// +         +----+----+
  			// |         | 22 | 23 |
  			// +----+----+----+----+
  			//                     ^-- heading columns
  			expect( getData( model ) ).to.equalMarkup( modelTable( [
  				[ { contents: '00', colspan: 2 }, '02', '03' ],
  				[ { contents: '10[]', colspan: 2, rowspan: 5 }, '12', '13' ],
  				[ '', '' ],
  				[ '', '' ],
  				[ '', '' ],
  				[ '22', '23' ]
  			], { headingColumns: 3, headingRows: 1 } ) );
  		} );
  
  		it( 'should not expand rowspan of a cell that does not overlaps inserted rows', () => {
  			// +----+----+----+
  			// | 00 | 01 | 02 |
  			// +    +----+----+
  			// |    | 11 | 12 |
  			// +----+----+----+ <-- heading rows
  			// | 20 | 21 | 22 |
  			// +----+----+----+
  			setData( model, modelTable( [
  				[ { contents: '00', rowspan: 2 }, '01', '02' ],
  				[ '11[]', '12' ],
  				[ '20', '21', '22' ]
  			], { headingRows: 2 } ) );
  
  			tableUtils.insertRows( root.getNodeByPath( [ 0 ] ), { at: 2, rows: 3 } );
  
  			// +----+----+----+
  			// | 00 | 01 | 02 |
  			// +    +----+----+
  			// |    | 11 | 12 |
  			// +----+----+----+ <-- heading rows
  			// |    |    |    |
  			// +----+----+----+
  			// |    |    |    |
  			// +----+----+----+
  			// |    |    |    |
  			// +----+----+----+
  			// | 20 | 21 | 22 |
  			// +----+----+----+
  			expect( getData( model ) ).to.equalMarkup( modelTable( [
  				[ { contents: '00', rowspan: 2 }, '01', '02' ],
  				[ '11[]', '12' ],
  				[ '', '', '' ],
  				[ '', '', '' ],
  				[ '', '', '' ],
  				[ '20', '21', '22' ]
  			], { headingRows: 2 } ) );
  		} );
  
  		it( 'should properly calculate columns if next row has colspans', () => {
  			// +----+----+----+
  			// | 00 | 01 | 02 |
  			// +    +----+----+
  			// |    | 11 | 12 |
  			// +----+----+----+ <-- heading rows
  			// | 20           |
  			// +----+----+----+
  			setData( model, modelTable( [
  				[ { contents: '00', rowspan: 2 }, '01', '02' ],
  				[ '11[]', '12' ],
  				[ { contents: '20', colspan: 3 } ]
  			], { headingRows: 2 } ) );
  
  			tableUtils.insertRows( root.getNodeByPath( [ 0 ] ), { at: 2, rows: 3 } );
  
  			// +----+----+----+
  			// | 00 | 01 | 02 |
  			// +    +----+----+
  			// |    | 11 | 12 |
  			// +----+----+----+ <-- heading rows
  			// |    |    |    |
  			// +----+----+----+
  			// |    |    |    |
  			// +----+----+----+
  			// |    |    |    |
  			// +----+----+----+
  			// | 20           |
  			// +----+----+----+
  			expect( getData( model ) ).to.equalMarkup( modelTable( [
  				[ { contents: '00', rowspan: 2 }, '01', '02' ],
  				[ '11[]', '12' ],
  				[ '', '', '' ],
  				[ '', '', '' ],
  				[ '', '', '' ],
  				[ { contents: '20', colspan: 3 } ]
  			], { headingRows: 2 } ) );
  		} );
  
  		it( 'should insert rows at the end of a table', () => {
  			setData( model, modelTable( [
  				[ '11[]', '12' ],
  				[ '21', '22' ]
  			] ) );
  
  			tableUtils.insertRows( root.getNodeByPath( [ 0 ] ), { at: 2, rows: 3 } );
  
  			expect( getData( model ) ).to.equalMarkup( modelTable( [
  				[ '11[]', '12' ],
  				[ '21', '22' ],
  				[ '', '' ],
  				[ '', '' ],
  				[ '', '' ]
  			] ) );
  		} );
  
  		it( 'should throw error when options.at is larger than the amount of rows in the table', () => {
  			setData( model, modelTable( [
  				[ '11[]', '12' ],
  				[ '21', '22' ]
  			] ) );
  
  			expect(
  				() => tableUtils.insertRows( root.getNodeByPath( [ 0 ] ), { at: 3, rows: 3 } )
  			).to.throw(
  				CKEditorError,
  				'tableutils-insertrows-insert-out-of-range'
  			);
  
  			expect( getData( model ) ).to.equalMarkup( modelTable( [
  				[ '11[]', '12' ],
  				[ '21', '22' ]
  			] ) );
  		} );
  
  		it( 'should insert rows into a table with a non-row element', () => {
  			setData( model,
  				'<table>' +
  					'<tableRow>' +
  						'<tableCell><paragraph>00</paragraph></tableCell>' +
  						'<tableCell><paragraph>01</paragraph></tableCell>' +
  					'</tableRow>' +
  					'<tableRow>' +
  						'<tableCell><paragraph>[]10</paragraph></tableCell>' +
  						'<tableCell><paragraph>11</paragraph></tableCell>' +
  					'</tableRow>' +
  					'<foo>An extra element</foo>' +
  				'</table>'
  			);
  
  			tableUtils.insertRows( root.getNodeByPath( [ 0 ] ), { at: 2, rows: 3 } );
  
  			expect( getData( model ) ).to.equalMarkup(
  				'<table>' +
  					'<tableRow>' +
  						'<tableCell><paragraph>00</paragraph></tableCell>' +
  						'<tableCell><paragraph>01</paragraph></tableCell>' +
  					'</tableRow>' +
  					'<tableRow>' +
  						'<tableCell><paragraph>[]10</paragraph></tableCell>' +
  						'<tableCell><paragraph>11</paragraph></tableCell>' +
  					'</tableRow>' +
  					'<tableRow>' +
  						'<tableCell>' +
  							'<paragraph></paragraph>' +
  						'</tableCell>' +
  						'<tableCell>' +
  							'<paragraph></paragraph>' +
  						'</tableCell>' +
  					'</tableRow>' +
  					'<tableRow>' +
  						'<tableCell>' +
  							'<paragraph></paragraph>' +
  						'</tableCell>' +
  						'<tableCell>' +
  							'<paragraph></paragraph>' +
  						'</tableCell>' +
  					'</tableRow>' +
  					'<tableRow>' +
  						'<tableCell>' +
  							'<paragraph></paragraph>' +
  						'</tableCell>' +
  						'<tableCell>' +
  							'<paragraph></paragraph>' +
  						'</tableCell>' +
  					'</tableRow>' +
  					'<foo>An extra element</foo>' +
  				'</table>'
  			);
  		} );
  
  		describe( 'with copyStructureFrom enabled', () => {
  			beforeEach( () => {
  				// +----+----+----+----+----+----+
  				// | 00 | 01      | 03 | 04 | 05 |
  				// +----+         +    +----+----+
  				// | 10 |         |    | 14      |
  				// +----+----+----+----+----+----+
  				setData( model, modelTable( [
  					[ '00', { contents: '01', colspan: 2, rowspan: 2 }, { contents: '03', rowspan: 2 }, '04', '05' ],
  					[ '10', { contents: '14', colspan: 2 } ]
  				] ) );
  			} );
  
  			it( 'should copy structure from the first row', () => {
  				tableUtils.insertRows( root.getNodeByPath( [ 0 ] ), { at: 0, rows: 1, copyStructureFromAbove: false } );
  
  				// +----+----+----+----+----+----+
  				// |    |         |    |    |    |
  				// +----+----+----+----+----+----+
  				// | 00 | 01      | 03 | 04 | 05 |
  				// +----+         +    +----+----+
  				// | 10 |         |    | 14      |
  				// +----+----+----+----+----+----+
  				expect( getData( model, { withoutSelection: true } ) ).to.equalMarkup( modelTable( [
  					[ '', { contents: '', colspan: 2 }, '', '', '' ],
  					[ '00', { contents: '01', colspan: 2, rowspan: 2 }, { contents: '03', rowspan: 2 }, '04', '05' ],
  					[ '10', { contents: '14', colspan: 2 } ]
  				] ) );
  			} );
  
  			it( 'should copy structure from the first row and properly handle row-spanned cells', () => {
  				tableUtils.insertRows( root.getNodeByPath( [ 0 ] ), { at: 1, rows: 1, copyStructureFromAbove: true } );
  
  				// +----+----+----+----+----+----+
  				// | 00 | 01      | 03 | 04 | 05 |
  				// +----+         +    +----+----+
  				// |    |         |    |    |    |
  				// +----+         +    +----+----+
  				// | 10 |         |    | 14      |
  				// +----+----+----+----+----+----+
  				expect( getData( model, { withoutSelection: true } ) ).to.equalMarkup( modelTable( [
  					[ '00', { contents: '01', colspan: 2, rowspan: 3 }, { contents: '03', rowspan: 3 }, '04', '05' ],
  					[ '', '', '' ],
  					[ '10', { contents: '14', colspan: 2 } ]
  				] ) );
  			} );
  
  			it( 'should copy structure from the last row', () => {
  				tableUtils.insertRows( root.getNodeByPath( [ 0 ] ), { at: 2, rows: 1, copyStructureFromAbove: true } );
  
  				// +----+----+----+----+----+----+
  				// | 00 | 01      | 03 | 04 | 05 |
  				// +----+         +    +----+----+
  				// | 10 |         |    | 14      |
  				// +----+----+----+----+----+----+
  				// |    |         |    |         |
  				// +----+----+----+----+----+----+
  				expect( getData( model, { withoutSelection: true } ) ).to.equalMarkup( modelTable( [
  					[ '00', { contents: '01', colspan: 2, rowspan: 2 }, { contents: '03', rowspan: 2 }, '04', '05' ],
  					[ '10', { contents: '14', colspan: 2 } ],
  					[ '', { contents: '', colspan: 2 }, '', { contents: '', colspan: 2 } ]
  				] ) );
  			} );
  
  			it( 'should copy structure from the last row and properly handle row-spanned cells', () => {
  				tableUtils.insertRows( root.getNodeByPath( [ 0 ] ), { at: 1, rows: 1, copyStructureFromAbove: false } );
  
  				// +----+----+----+----+----+----+
  				// | 00 | 01      | 03 | 04 | 05 |
  				// +----+         +    +----+----+
  				// |    |         |    |         |
  				// +----+         +    +----+----+
  				// | 10 |         |    | 14      |
  				// +----+----+----+----+----+----+
  				expect( getData( model, { withoutSelection: true } ) ).to.equalMarkup( modelTable( [
  					[ '00', { contents: '01', colspan: 2, rowspan: 3 }, { contents: '03', rowspan: 3 }, '04', '05' ],
  					[ '', { contents: '', colspan: 2 } ],
  					[ '10', { contents: '14', colspan: 2 } ]
  				] ) );
  			} );
  		} );
  	} );
  
  	describe( 'insertColumns()', () => {
  		it( 'should be decorated', () => {
  			const spy = sinon.spy();
  
  			setData( model, modelTable( [
  				[ '11[]', '12' ],
  				[ '21', '22' ]
  			] ) );
  
  			tableUtils.on( 'insertColumns', spy );
  
  			tableUtils.insertColumns( root.getNodeByPath( [ 0 ] ), { at: 1 } );
  
  			expect( getData( model ) ).to.equalMarkup( modelTable( [
  				[ '11[]', '', '12' ],
  				[ '21', '', '22' ]
  			] ) );
  
  			expect( spy.calledOnce ).to.be.true;
  		} );
  
  		it( 'should insert column in given table at given index', () => {
  			setData( model, modelTable( [
  				[ '11[]', '12' ],
  				[ '21', '22' ]
  			] ) );
  
  			tableUtils.insertColumns( root.getNodeByPath( [ 0 ] ), { at: 1 } );
  
  			expect( getData( model ) ).to.equalMarkup( modelTable( [
  				[ '11[]', '', '12' ],
  				[ '21', '', '22' ]
  			] ) );
  		} );
  
  		it( 'should insert column in given table with default values', () => {
  			setData( model, modelTable( [
  				[ '11[]', '12' ],
  				[ '21', '22' ]
  			] ) );
  
  			tableUtils.insertColumns( root.getNodeByPath( [ 0 ] ) );
  
  			expect( getData( model ) ).to.equalMarkup( modelTable( [
  				[ '', '11[]', '12' ],
  				[ '', '21', '22' ]
  			] ) );
  		} );
  
  		it( 'should insert column in given table at default index', () => {
  			setData( model, modelTable( [
  				[ '11[]', '12' ],
  				[ '21', '22' ]
  			] ) );
  
  			tableUtils.insertColumns( root.getNodeByPath( [ 0 ] ) );
  
  			expect( getData( model ) ).to.equalMarkup( modelTable( [
  				[ '', '11[]', '12' ],
  				[ '', '21', '22' ]
  			] ) );
  		} );
  
  		it( 'should insert columns at the end of a row', () => {
  			setData( model, modelTable( [
  				[ '00[]', '01' ],
  				[ { colspan: 2, contents: '10' } ],
  				[ '20', { rowspan: 2, contents: '21' } ],
  				[ '30' ]
  			] ) );
  
  			tableUtils.insertColumns( root.getNodeByPath( [ 0 ] ), { at: 2, columns: 2 } );
  
  			expect( getData( model ) ).to.equalMarkup( modelTable( [
  				[ '00[]', '01', '', '' ],
  				[ { colspan: 2, contents: '10' }, '', '' ],
  				[ '20', { rowspan: 2, contents: '21' }, '', '' ],
  				[ '30', '', '' ]
  			] ) );
  		} );
  
  		it( 'should insert columns at the beginning of a row', () => {
  			setData( model, modelTable( [
  				[ '00[]', '01' ],
  				[ { colspan: 2, contents: '10' } ],
  				[ '20', { rowspan: 2, contents: '21' } ],
  				[ { rowspan: 2, contents: '30' } ],
  				[ '41' ]
  			] ) );
  
  			tableUtils.insertColumns( root.getNodeByPath( [ 0 ] ), { at: 0, columns: 2 } );
  
  			expect( getData( model ) ).to.equalMarkup( modelTable( [
  				[ '', '', '00[]', '01' ],
  				[ '', '', { colspan: 2, contents: '10' } ],
  				[ '', '', '20', { rowspan: 2, contents: '21' } ],
  				[ '', '', { rowspan: 2, contents: '30' } ],
  				[ '', '', '41' ]
  			] ) );
  		} );
  
  		it( 'should properly insert column at beginning of row-col-spanned cell', () => {
  			setData( model, modelTable( [
  				[ '11', '12', '13' ],
  				[ '21', { colspan: 2, rowspan: 2, contents: '22[]' } ],
  				[ '31' ],
  				[ '41', '42', '43' ]
  			] ) );
  
  			tableUtils.insertColumns( root.getNodeByPath( [ 0 ] ), { at: 1, columns: 1 } );
  
  			expect( getData( model ) ).to.equalMarkup( modelTable( [
  				[ '11', '', '12', '13' ],
  				[ '21', '', { colspan: 2, rowspan: 2, contents: '22[]' } ],
  				[ '31', '' ],
  				[ '41', '', '42', '43' ]
  			] ) );
  		} );
  
  		it( 'should update table heading columns attribute when inserting column in headings section', () => {
  			setData( model, modelTable( [
  				[ '11[]', '12' ],
  				[ '21', '22' ],
  				[ '31', '32' ]
  			], { headingColumns: 2 } ) );
  
  			tableUtils.insertColumns( root.getNodeByPath( [ 0 ] ), { at: 1 } );
  
  			expect( getData( model ) ).to.equalMarkup( modelTable( [
  				[ '11[]', '', '12' ],
  				[ '21', '', '22' ],
  				[ '31', '', '32' ]
  			], { headingColumns: 3 } ) );
  		} );
  
  		it( 'should not update table heading columns attribute when inserting column after headings section', () => {
  			setData( model, modelTable( [
  				[ '11[]', '12', '13' ],
  				[ '21', '22', '23' ],
  				[ '31', '32', '33' ]
  			], { headingColumns: 2 } ) );
  
  			tableUtils.insertColumns( root.getNodeByPath( [ 0 ] ), { at: 2 } );
  
  			expect( getData( model ) ).to.equalMarkup( modelTable( [
  				[ '11[]', '12', '', '13' ],
  				[ '21', '22', '', '23' ],
  				[ '31', '32', '', '33' ]
  			], { headingColumns: 2 } ) );
  		} );
  
  		it( 'should expand spanned columns', () => {
  			setData( model, modelTable( [
  				[ '00[]', '01' ],
  				[ { colspan: 2, contents: '10' } ],
  				[ '20', '21' ]
  			], { headingColumns: 2 } ) );
  
  			tableUtils.insertColumns( root.getNodeByPath( [ 0 ] ), { at: 1 } );
  
  			expect( getData( model ) ).to.equalMarkup( modelTable( [
  				[ '00[]', '', '01' ],
  				[ { colspan: 3, contents: '10' } ],
  				[ '20', '', '21' ]
  			], { headingColumns: 3 } ) );
  		} );
  
  		it( 'should skip wide spanned columns', () => {
  			// +----+----+----+----+----+----+
  			// | 00 | 01 | 02 | 03 | 04 | 05 |
  			// +----+----+----+----+----+----+
  			// | 10 | 11 | 12      | 14 | 15 |
  			// +----+----+----+----+----+----+
  			// | 20                | 24      |
  			// +----+----+----+----+----+----+
  			//                     ^-- heading columns
  			setData( model, modelTable( [
  				[ '00', '01[]', '02', '03', '04', '05' ],
  				[ '10', '11', { contents: '12', colspan: 2 }, '14', '15' ],
  				[ { contents: '20', colspan: 4 }, { contents: '24', colspan: 2 } ]
  			], { headingColumns: 4 } ) );
  
  			tableUtils.insertColumns( root.getNodeByPath( [ 0 ] ), { at: 2, columns: 2 } );
  
  			// +----+----+----+----+----+----+----+----+
  			// | 00 | 01 |    |    | 02 | 03 | 04 | 05 |
  			// +----+----+----+----+----+----+----+----+
  			// | 10 | 11 |    |    | 12      | 14 | 15 |
  			// +----+----+----+----+----+----+----+----+
  			// | 20                          | 24      |
  			// +----+----+----+----+----+----+----+----+
  			//                               ^-- heading columns
  			expect( getData( model ) ).to.equalMarkup( modelTable( [
  				[ '00', '01[]', '', '', '02', '03', '04', '05' ],
  				[ '10', '11', '', '', { contents: '12', colspan: 2 }, '14', '15' ],
  				[ { contents: '20', colspan: 6 }, { contents: '24', colspan: 2 } ]
  			], { headingColumns: 6 } ) );
  		} );
  
  		it( 'should skip row & column spanned cells', () => {
  			// +----+----+----+
  			// | 00      | 02 |
  			// +         +----+
  			// |         | 12 |
  			// +----+----+----+
  			// | 20 | 21 | 22 |
  			// +----+----+----+
  			setData( model, modelTable( [
  				[ { colspan: 2, rowspan: 2, contents: '00[]' }, '02' ],
  				[ '12' ],
  				[ '20', '21', '22' ]
  			], { headingColumns: 2 } ) );
  
  			tableUtils.insertColumns( root.getNodeByPath( [ 0 ] ), { at: 1, columns: 2 } );
  
  			expect( getData( model ) ).to.equalMarkup( modelTable( [
  				[ { colspan: 4, rowspan: 2, contents: '00[]' }, '02' ],
  				[ '12' ],
  				[ '20', '', '', '21', '22' ]
  			], { headingColumns: 4 } ) );
  		} );
  
  		it( 'should properly insert column while table has row-spanned cells', () => {
  			setData( model, modelTable( [
  				[ { rowspan: 4, contents: '00[]' }, { rowspan: 2, contents: '01' }, '02' ],
  				[ '12' ],
  				[ { rowspan: 2, contents: '21' }, '22' ],
  				[ '32' ]
  			], { headingColumns: 2 } ) );
  
  			tableUtils.insertColumns( root.getNodeByPath( [ 0 ] ), { at: 1, columns: 1 } );
  
  			expect( getData( model ) ).to.equalMarkup( modelTable( [
  				[ { rowspan: 4, contents: '00[]' }, '', { rowspan: 2, contents: '01' }, '02' ],
  				[ '', '12' ],
  				[ '', { rowspan: 2, contents: '21' }, '22' ],
  				[ '', '32' ]
  			], { headingColumns: 3 } ) );
  		} );
  
  		it( 'should ignore table element that is not a row', () => {
  			setData( model,
  				'<table>' +
  					'<tableRow>' +
  						'<tableCell><paragraph>11[]</paragraph></tableCell>' +
  						'<tableCell><paragraph>12</paragraph></tableCell>' +
  					'</tableRow>' +
  					'<tableRow>' +
  						'<tableCell><paragraph>21</paragraph></tableCell>' +
  						'<tableCell><paragraph>22</paragraph></tableCell>' +
  					'</tableRow>' +
  					'<foo>Bar</foo>' +
  				'</table>'
  			);
  
  			tableUtils.insertColumns( root.getNodeByPath( [ 0 ] ), { at: 0 } );
  
  			expect( getData( model ) ).to.equalMarkup(
  				'<table>' +
  					'<tableRow>' +
  						'<tableCell>' +
  							'<paragraph></paragraph>' +
  						'</tableCell>' +
  						'<tableCell>' +
  							'<paragraph>11[]</paragraph>' +
  						'</tableCell>' +
  						'<tableCell>' +
  							'<paragraph>12</paragraph>' +
  						'</tableCell>' +
  					'</tableRow>' +
  					'<tableRow>' +
  						'<tableCell>' +
  							'<paragraph></paragraph>' +
  						'</tableCell>' +
  						'<tableCell>' +
  							'<paragraph>21</paragraph>' +
  						'</tableCell>' +
  						'<tableCell>' +
  							'<paragraph>22</paragraph>' +
  						'</tableCell>' +
  					'</tableRow>' +
  					'<foo>Bar</foo>' +
  				'</table>'
  			);
  		} );
  
  		it( 'should insert columns into a table with a non-row element', () => {
  			setData( model,
  				'<table>' +
  					'<tableRow>' +
  						'<tableCell><paragraph>00</paragraph></tableCell>' +
  						'<tableCell><paragraph>01</paragraph></tableCell>' +
  					'</tableRow>' +
  					'<tableRow>' +
  						'<tableCell><paragraph>[]10</paragraph></tableCell>' +
  						'<tableCell><paragraph>11</paragraph></tableCell>' +
  					'</tableRow>' +
  					'<foo>An extra element</foo>' +
  				'</table>'
  			);
  
  			tableUtils.insertColumns( root.getNodeByPath( [ 0 ] ), { at: 1, columns: 3 } );
  
  			expect( getData( model ) ).to.equalMarkup(
  				'<table>' +
  					'<tableRow>' +
  						'<tableCell><paragraph>00</paragraph></tableCell>' +
  						'<tableCell><paragraph></paragraph></tableCell>' +
  						'<tableCell><paragraph></paragraph></tableCell>' +
  						'<tableCell><paragraph></paragraph></tableCell>' +
  						'<tableCell><paragraph>01</paragraph></tableCell>' +
  					'</tableRow>' +
  					'<tableRow>' +
  						'<tableCell><paragraph>[]10</paragraph></tableCell>' +
  						'<tableCell><paragraph></paragraph></tableCell>' +
  						'<tableCell><paragraph></paragraph></tableCell>' +
  						'<tableCell><paragraph></paragraph></tableCell>' +
  						'<tableCell><paragraph>11</paragraph></tableCell>' +
  					'</tableRow>' +
  					'<foo>An extra element</foo>' +
  				'</table>'
  			);
  		} );
  	} );
  
  	describe( 'splitCellVertically()', () => {
  		it( 'should split table cell to given table cells number', () => {
  			setData( model, modelTable( [
  				[ '00', '01', '02' ],
  				[ '10', '[]11', '12' ],
  				[ '20', { colspan: 2, contents: '21' } ],
  				[ { colspan: 2, contents: '30' }, '32' ]
  			] ) );
  
  			tableUtils.splitCellVertically( root.getNodeByPath( [ 0, 1, 1 ] ), 3 );
  
  			expect( getData( model ) ).to.equalMarkup( modelTable( [
  				[ '00', { colspan: 3, contents: '01' }, '02' ],
  				[ '10', '[]11', '', '', '12' ],
  				[ '20', { colspan: 4, contents: '21' } ],
  				[ { colspan: 4, contents: '30' }, '32' ]
  			] ) );
  		} );
  
  		it( 'should split table cell for two table cells as a default', () => {
  			setData( model, modelTable( [
  				[ '00', '01', '02' ],
  				[ '10', '[]11', '12' ],
  				[ '20', { colspan: 2, contents: '21' } ],
  				[ { colspan: 2, contents: '30' }, '32' ]
  			] ) );
  
  			tableUtils.splitCellVertically( root.getNodeByPath( [ 0, 1, 1 ] ) );
  
  			expect( getData( model ) ).to.equalMarkup( modelTable( [
  				[ '00', { colspan: 2, contents: '01' }, '02' ],
  				[ '10', '[]11', '', '12' ],
  				[ '20', { colspan: 3, contents: '21' } ],
  				[ { colspan: 3, contents: '30' }, '32' ]
  			] ) );
  		} );
  
  		it( 'should split table cell if split is equal to colspan', () => {
  			setData( model, modelTable( [
  				[ '00', '01', '02' ],
  				[ '10', '11', '12' ],
  				[ '20', { colspan: 2, contents: '21[]' } ],
  				[ { colspan: 2, contents: '30' }, '32' ]
  			] ) );
  
  			tableUtils.splitCellVertically( root.getNodeByPath( [ 0, 2, 1 ] ), 2 );
  
  			expect( getData( model ) ).to.equalMarkup( modelTable( [
  				[ '00', '01', '02' ],
  				[ '10', '11', '12' ],
  				[ '20', '21[]', '' ],
  				[ { colspan: 2, contents: '30' }, '32' ]
  			] ) );
  		} );
  
  		it( 'should properly split table cell if split is uneven', () => {
  			setData( model, modelTable( [
  				[ '00', '01', '02' ],
  				[ { colspan: 3, contents: '10[]' } ]
  			] ) );
  
  			tableUtils.splitCellVertically( root.getNodeByPath( [ 0, 1, 0 ] ), 2 );
  
  			expect( getData( model ) ).to.equalMarkup( modelTable( [
  				[ '00', '01', '02' ],
  				[ { colspan: 2, contents: '10[]' }, '' ]
  			] ) );
  		} );
  
  		it( 'should properly set colspan of inserted cells', () => {
  			setData( model, modelTable( [
  				[ '00', '01', '02', '03' ],
  				[ { colspan: 4, contents: '10[]' } ]
  			] ) );
  
  			tableUtils.splitCellVertically( root.getNodeByPath( [ 0, 1, 0 ] ), 2 );
  
  			expect( getData( model ) ).to.equalMarkup( modelTable( [
  				[ '00', '01', '02', '03' ],
  				[ { colspan: 2, contents: '10[]' }, { colspan: 2, contents: '' } ]
  			] ) );
  		} );
  
  		it( 'should keep rowspan attribute for newly inserted cells', () => {
  			setData( model, modelTable( [
  				[ '00', '01', '02', '03', '04', '05' ],
  				[ { colspan: 5, rowspan: 2, contents: '10[]' }, '15' ],
  				[ '25' ]
  			] ) );
  
  			tableUtils.splitCellVertically( root.getNodeByPath( [ 0, 1, 0 ] ), 2 );
  
  			expect( getData( model ) ).to.equalMarkup( modelTable( [
  				[ '00', '01', '02', '03', '04', '05' ],
  				[ { colspan: 3, rowspan: 2, contents: '10[]' }, { colspan: 2, rowspan: 2, contents: '' }, '15' ],
  				[ '25' ]
  			] ) );
  		} );
  
  		it( 'should keep rowspan attribute of for newly inserted cells if number of cells is bigger then curren colspan', () => {
  			setData( model, modelTable( [
  				[ '00', '01', '02' ],
  				[ { colspan: 2, rowspan: 2, contents: '10[]' }, '12' ],
  				[ '22' ]
  			] ) );
  
  			tableUtils.splitCellVertically( root.getNodeByPath( [ 0, 1, 0 ] ), 3 );
  
  			expect( getData( model ) ).to.equalMarkup( modelTable( [
  				[ { colspan: 2, contents: '00' }, '01', '02' ],
  				[ { rowspan: 2, contents: '10[]' }, { rowspan: 2, contents: '' }, { rowspan: 2, contents: '' }, '12' ],
  				[ '22' ]
  			] ) );
  		} );
  
  		it( 'should properly break a cell if it has colspan and number of created cells is bigger then colspan', () => {
  			setData( model, modelTable( [
  				[ '00', '01', '02', '03' ],
  				[ { colspan: 4, contents: '10[]' } ]
  			] ) );
  
  			tableUtils.splitCellVertically( root.getNodeByPath( [ 0, 1, 0 ] ), 6 );
  
  			expect( getData( model ) ).to.equalMarkup( modelTable( [
  				[ { colspan: 3, contents: '00' }, '01', '02', '03' ],
  				[ '10[]', '', '', '', '', '' ]
  			] ) );
  		} );
  
  		it( 'should update heading columns is split cell is in heading section', () => {
  			setData( model, modelTable( [
  				[ '00', '01' ],
  				[ '10[]', '11' ]
  			], { headingColumns: 1 } ) );
  
  			tableUtils.splitCellVertically( root.getNodeByPath( [ 0, 1, 0 ] ), 3 );
  
  			expect( getData( model ) ).to.equalMarkup( modelTable( [
  				[ { colspan: 3, contents: '00' }, '01' ],
  				[ '10[]', '', '', '11' ]
  			], { headingColumns: 3 } ) );
  		} );
  
  		it( 'should split cells in a table with a non-row element', () => {
  			setData( model,
  				'<table>' +
  					'<tableRow>' +
  						'<tableCell><paragraph>00</paragraph></tableCell>' +
  						'<tableCell><paragraph>01</paragraph></tableCell>' +
  					'</tableRow>' +
  					'<tableRow>' +
  						'<tableCell><paragraph>[]10</paragraph></tableCell>' +
  						'<tableCell><paragraph>11</paragraph></tableCell>' +
  					'</tableRow>' +
  					'<foo>An extra element</foo>' +
  				'</table>'
  			);
  
  			tableUtils.splitCellVertically( root.getNodeByPath( [ 0, 1, 0 ] ), 3 );
  
  			expect( getData( model ) ).to.equalMarkup(
  				'<table>' +
  					'<tableRow>' +
  						'<tableCell colspan="3"><paragraph>00</paragraph></tableCell>' +
  						'<tableCell><paragraph>01</paragraph></tableCell>' +
  					'</tableRow>' +
  					'<tableRow>' +
  						'<tableCell><paragraph>[]10</paragraph></tableCell>' +
  						'<tableCell><paragraph></paragraph></tableCell>' +
  						'<tableCell><paragraph></paragraph></tableCell>' +
  						'<tableCell><paragraph>11</paragraph></tableCell>' +
  					'</tableRow>' +
  					'<foo>An extra element</foo>' +
  				'</table>'
  			);
  		} );
  	} );
  
  	describe( 'splitCellHorizontally()', () => {
  		it( 'should split table cell to default table cells number', () => {
  			setData( model, modelTable( [
  				[ '00', '01', '02' ],
  				[ '10', '[]11', '12' ],
  				[ '20', '21', '22' ]
  			] ) );
  
  			tableUtils.splitCellHorizontally( root.getNodeByPath( [ 0, 1, 1 ] ) );
  
  			expect( getData( model ) ).to.equalMarkup( modelTable( [
  				[ '00', '01', '02' ],
  				[ { rowspan: 2, contents: '10' }, '[]11', { rowspan: 2, contents: '12' } ],
  				[ '' ],
  				[ '20', '21', '22' ]
  			] ) );
  		} );
  
  		it( 'should split table cell to given table cells number', () => {
  			setData( model, modelTable( [
  				[ '00', '01', '02' ],
  				[ '10', '[]11', '12' ],
  				[ '20', '21', '22' ]
  			] ) );
  
  			tableUtils.splitCellHorizontally( root.getNodeByPath( [ 0, 1, 1 ] ), 4 );
  
  			expect( getData( model ) ).to.equalMarkup( modelTable( [
  				[ '00', '01', '02' ],
  				[ { rowspan: 4, contents: '10' }, '[]11', { rowspan: 4, contents: '12' } ],
  				[ '' ],
  				[ '' ],
  				[ '' ],
  				[ '20', '21', '22' ]
  			] ) );
  		} );
  
  		it( 'should properly update row-spanned cells overlapping selected cell', () => {
  			setData( model, modelTable( [
  				[ { rowspan: 2, contents: '00' }, '01', { rowspan: 3, contents: '02' } ],
  				[ '[]11' ],
  				[ '20', '21' ]
  			] ) );
  
  			tableUtils.splitCellHorizontally( root.getNodeByPath( [ 0, 1, 0 ] ), 3 );
  
  			expect( getData( model ) ).to.equalMarkup( modelTable( [
  				[ { rowspan: 4, contents: '00' }, '01', { rowspan: 5, contents: '02' } ],
  				[ '[]11' ],
  				[ '' ],
  				[ '' ],
  				[ '20', '21' ]
  			] ) );
  		} );
  
  		it( 'should split row-spanned cell', () => {
  			setData( model, modelTable( [
  				[ '00', { rowspan: 2, contents: '01[]' } ],
  				[ '10' ],
  				[ '20', '21' ]
  			] ) );
  
  			const tableCell = root.getNodeByPath( [ 0, 0, 1 ] );
  
  			tableUtils.splitCellHorizontally( tableCell, 2 );
  
  			expect( getData( model ) ).to.equalMarkup( modelTable( [
  				[ '00', '01[]' ],
  				[ '10', '' ],
  				[ '20', '21' ]
  			] ) );
  		} );
  
  		it( 'should copy colspan while splitting row-spanned cell', () => {
  			setData( model, modelTable( [
  				[ '00', { rowspan: 2, colspan: 2, contents: '01[]' } ],
  				[ '10' ],
  				[ '20', '21', '22' ]
  			] ) );
  
  			const tableCell = root.getNodeByPath( [ 0, 0, 1 ] );
  
  			tableUtils.splitCellHorizontally( tableCell, 2 );
  
  			expect( getData( model ) ).to.equalMarkup( modelTable( [
  				[ '00', { colspan: 2, contents: '01[]' } ],
  				[ '10', { colspan: 2, contents: '' } ],
  				[ '20', '21', '22' ]
  			] ) );
  		} );
  
  		it( 'should evenly distribute rowspan attribute', () => {
  			setData( model, modelTable( [
  				[ '00', { rowspan: 7, contents: '01[]' } ],
  				[ '10' ],
  				[ '20' ],
  				[ '30' ],
  				[ '40' ],
  				[ '50' ],
  				[ '60' ],
  				[ '70', '71' ]
  			] ) );
  
  			const tableCell = root.getNodeByPath( [ 0, 0, 1 ] );
  
  			tableUtils.splitCellHorizontally( tableCell, 3 );
  
  			expect( getData( model ) ).to.equalMarkup( modelTable( [
  				[ '00', { rowspan: 3, contents: '01[]' } ],
  				[ '10' ],
  				[ '20' ],
  				[ '30', { rowspan: 2, contents: '' } ],
  				[ '40' ],
  				[ '50', { rowspan: 2, contents: '' } ],
  				[ '60' ],
  				[ '70', '71' ]
  			] ) );
  		} );
  
  		it( 'should split row-spanned cell and updated other cells rowspan when splitting to bigger number of cells', () => {
  			setData( model, modelTable( [
  				[ '00', { rowspan: 2, contents: '01[]' } ],
  				[ '10' ],
  				[ '20', '21' ]
  			] ) );
  
  			const tableCell = root.getNodeByPath( [ 0, 0, 1 ] );
  
  			tableUtils.splitCellHorizontally( tableCell, 3 );
  
  			expect( getData( model ) ).to.equalMarkup( modelTable( [
  				[ { rowspan: 2, contents: '00' }, '01[]' ],
  				[ '' ],
  				[ '10', '' ],
  				[ '20', '21' ]
  			] ) );
  		} );
  
  		it( 'should split row-spanned & col-spanned cell', () => {
  			setData( model, modelTable( [
  				[ '00', { colspan: 2, contents: '01[]' } ],
  				[ '10', '11', '12' ]
  			] ) );
  
  			const tableCell = root.getNodeByPath( [ 0, 0, 1 ] );
  
  			tableUtils.splitCellHorizontally( tableCell, 3 );
  
  			expect( getData( model ) ).to.equalMarkup( modelTable( [
  				[ { rowspan: 3, contents: '00' }, { colspan: 2, contents: '01[]' } ],
  				[ { colspan: 2, contents: '' } ],
  				[ { colspan: 2, contents: '' } ],
  				[ '10', '11', '12' ]
  			] ) );
  		} );
  
  		it( 'should split table cell from a heading section', () => {
  			setData( model, modelTable( [
  				[ '00[]', '01', '02' ],
  				[ '10', '11', '12' ],
  				[ '20', '21', '22' ]
  			], { headingRows: 1 } ) );
  
  			tableUtils.splitCellHorizontally( root.getNodeByPath( [ 0, 0, 0 ] ), 3 );
  
  			expect( getData( model ) ).to.equalMarkup( modelTable( [
  				[ '00[]', { rowspan: 3, contents: '01' }, { rowspan: 3, contents: '02' } ],
  				[ '' ],
  				[ '' ],
  				[ '10', '11', '12' ],
  				[ '20', '21', '22' ]
  			], { headingRows: 3 } ) );
  		} );
  
  		it( 'should split cells in a table with a non-row element', () => {
  			setData( model,
  				'<table>' +
  					'<tableRow>' +
  						'<tableCell><paragraph>00</paragraph></tableCell>' +
  						'<tableCell><paragraph>01</paragraph></tableCell>' +
  					'</tableRow>' +
  					'<foo>An extra element</foo>' +
  				'</table>'
  			);
  
  			tableUtils.splitCellHorizontally( root.getNodeByPath( [ 0, 0, 0 ] ), 3 );
  
  			expect( getData( model ) ).to.equalMarkup(
  				'[<table>' +
  					'<tableRow>' +
  						'<tableCell>' +
  							'<paragraph>00</paragraph>' +
  						'</tableCell>' +
  						'<tableCell rowspan="3">' +
  							'<paragraph>01</paragraph>' +
  						'</tableCell>' +
  					'</tableRow>' +
  					'<tableRow>' +
  						'<tableCell>' +
  							'<paragraph></paragraph>' +
  						'</tableCell>' +
  					'</tableRow>' +
  					'<tableRow>' +
  						'<tableCell>' +
  							'<paragraph></paragraph>' +
  						'</tableCell>' +
  					'</tableRow>' +
  					'<foo>An extra element</foo>' +
  				'</table>]'
  			);
  		} );
  	} );
  
  	describe( 'getColumns()', () => {
  		it( 'should return proper number of columns', () => {
  			setData( model, modelTable( [
  				[ '00', { colspan: 3, contents: '01' }, '04' ]
  			] ) );
  
  			expect( tableUtils.getColumns( root.getNodeByPath( [ 0 ] ) ) ).to.equal( 5 );
  		} );
  	} );
  
  	describe( 'getRows()', () => {
  		it( 'should return proper number of columns for simple table', () => {
  			setData( model, modelTable( [
  				[ '00', '01' ],
  				[ '10', '11' ]
  			] ) );
  
  			expect( tableUtils.getRows( root.getNodeByPath( [ 0 ] ) ) ).to.equal( 2 );
  		} );
  
  		it( 'should return proper number of columns for a table with header', () => {
  			setData( model, modelTable( [
  				[ '00', '01' ],
  				[ '10', '11' ]
  			], { headingRows: 1 } ) );
  
  			expect( tableUtils.getRows( root.getNodeByPath( [ 0 ] ) ) ).to.equal( 2 );
  		} );
  
  		it( 'should return proper number of columns for rowspan table', () => {
  			setData( model, modelTable( [
  				[ '00', '01' ],
  				[ { rowspan: 2, contents: '10' }, '11' ],
  				[ '21' ]
  			] ) );
  
  			expect( tableUtils.getRows( root.getNodeByPath( [ 0 ] ) ) ).to.equal( 3 );
  		} );
  
  		it( 'should return proper number of rows for a table with a non-row element', () => {
  			setData( model,
  				'<table>' +
  					'<tableRow>' +
  						'<tableCell><paragraph>00</paragraph></tableCell>' +
  						'<tableCell><paragraph>01</paragraph></tableCell>' +
  					'</tableRow>' +
  					'<tableRow>' +
  						'<tableCell><paragraph>[]10</paragraph></tableCell>' +
  						'<tableCell><paragraph>11</paragraph></tableCell>' +
  					'</tableRow>' +
  					'<foo>An extra element</foo>' +
  				'</table>'
  			);
  
  			expect( tableUtils.getRows( root.getNodeByPath( [ 0 ] ) ) ).to.equal( 2 );
  		} );
  	} );
  
  	describe( 'removeRows()', () => {
  		describe( 'single row', () => {
  			it( 'should remove a given row from a table start', () => {
  				setData( model, modelTable( [
  					[ '00', '01' ],
  					[ '10', '11' ],
  					[ '20', '21' ]
  				] ) );
  
  				tableUtils.removeRows( root.getChild( 0 ), { at: 0 } );
  
  				expect( getData( model, { withoutSelection: true } ) ).to.equalMarkup( modelTable( [
  					[ '10', '11' ],
  					[ '20', '21' ]
  				] ) );
  			} );
  
  			it( 'should remove last row', () => {
  				setData( model, modelTable( [
  					[ '00', '01' ],
  					[ '10', '11' ]
  				] ) );
  
  				tableUtils.removeRows( root.getChild( 0 ), { at: 1 } );
  
  				expect( getData( model, { withoutSelection: true } ) ).to.equalMarkup( modelTable( [
  					[ '00', '01' ]
  				] ) );
  			} );
  
  			it( 'should change heading rows if removing a heading row', () => {
  				setData( model, modelTable( [
  					[ '00', '01' ],
  					[ '10', '11' ],
  					[ '20', '21' ]
  				], { headingRows: 2 } ) );
  
  				tableUtils.removeRows( root.getChild( 0 ), { at: 1 } );
  
  				expect( getData( model, { withoutSelection: true } ) ).to.equalMarkup( modelTable( [
  					[ '00', '01' ],
  					[ '20', '21' ]
  				], { headingRows: 1 } ) );
  			} );
  
  			it( 'should change heading rows if removing a heading row (and cell below is row-spanned)', () => {
  				setData( model, modelTable( [
  					[ '00', '01' ],
  					[ '10', { contents: '11', rowspan: 2 } ],
  					[ '20' ]
  				], { headingRows: 1 } ) );
  
  				tableUtils.removeRows( root.getChild( 0 ), { at: 0 } );
  
  				expect( getData( model, { withoutSelection: true } ) ).to.equalMarkup( modelTable( [
  					[ '10', { contents: '11', rowspan: 2 } ],
  					[ '20' ]
  				] ) );
  			} );
  
  			it( 'should decrease rowspan of table cells from previous rows', () => {
  				// +----+----+----+----+----+
  				// | 00 | 01 | 02 | 03 | 04 |
  				// +----+    +    +    +    +
  				// | 10 |    |    |    |    |
  				// +----+----+    +    +    +
  				// | 20 | 21 |    |    |    |
  				// +----+----+----+    +    +
  				// | 30 | 31 | 32 |    |    |
  				// +----+----+----+----+    +
  				// | 40 | 41 | 42 | 43 |    |
  				// +----+----+----+----+----+
  				// | 50 | 51 | 52 | 53 | 54 |
  				// +----+----+----+----+----+
  				setData( model, modelTable( [
  					[ '00', { contents: '01', rowspan: 2 }, { contents: '02', rowspan: 3 }, { contents: '03', rowspan: 4 },
  						{ contents: '04', rowspan: 5 } ],
  					[ '10' ],
  					[ '20', '21' ],
  					[ '30', '31', '32' ],
  					[ '40', '41', '42', '43' ],
  					[ '50', '51', '52', '53', '54' ]
  				] ) );
  
  				tableUtils.removeRows( root.getChild( 0 ), { at: 1, rows: 1 } );
  
  				// +----+----+----+----+----+
  				// | 00 | 01 | 02 | 03 | 04 |
  				// +----+----+    +    +    +
  				// | 20 | 21 |    |    |    |
  				// +----+----+----+    +    +
  				// | 30 | 31 | 32 |    |    |
  				// +----+----+----+----+    +
  				// | 40 | 41 | 42 | 43 |    |
  				// +----+----+----+----+----+
  				// | 50 | 51 | 52 | 53 | 54 |
  				// +----+----+----+----+----+
  				expect( getData( model, { withoutSelection: true } ) ).to.equalMarkup( modelTable( [
  					[ '00', '01', { contents: '02', rowspan: 2 }, { contents: '03', rowspan: 3 }, { contents: '04', rowspan: 4 } ],
  					[ '20', '21' ],
  					[ '30', '31', '32' ],
  					[ '40', '41', '42', '43' ],
  					[ '50', '51', '52', '53', '54' ]
  				] ) );
  			} );
  
  			it( 'should decrease rowspan of table cells from previous rows (row-spanned cells on different rows)', () => {
  				setData( model, modelTable( [
  					[ { rowspan: 4, contents: '00' }, { rowspan: 3, contents: '01' }, { rowspan: 2, contents: '02' }, '03', '04' ],
  					[ { rowspan: 2, contents: '13' }, '14' ],
  					[ '22', '24' ],
  					[ '31', '32', '33', '34' ]
  				] ) );
  
  				tableUtils.removeRows( root.getChild( 0 ), { at: 2 } );
  
  				expect( getData( model, { withoutSelection: true } ) ).to.equalMarkup( modelTable( [
  					[ { rowspan: 3, contents: '00' }, { rowspan: 2, contents: '01' }, { rowspan: 2, contents: '02' }, '03', '04' ],
  					[ '13', '14' ],
  					[ '31', '32', '33', '34' ]
  				] ) );
  			} );
  
  			it( 'should move row-spanned cells to a row below removing it\'s row', () => {
  				setData( model, modelTable( [
  					[ { rowspan: 3, contents: '00' }, { rowspan: 2, contents: '01' }, '02' ],
  					[ '12' ],
  					[ '21', '22' ],
  					[ '30', '31', '32' ]
  				] ) );
  
  				tableUtils.removeRows( root.getChild( 0 ), { at: 0 } );
  
  				expect( getData( model, { withoutSelection: true } ) ).to.equalMarkup( modelTable( [
  					[ { rowspan: 2, contents: '00' }, '01', '12' ],
  					[ '21', '22' ],
  					[ '30', '31', '32' ]
  				] ) );
  			} );
  
  			it( 'should move row-spanned cells to a row below removing it\'s row (other cell is overlapping removed row)', () => {
  				setData( model, modelTable( [
  					[ '00', { rowspan: 3, contents: '01' }, '02', '03', '04' ],
  					[ '10', { rowspan: 2, contents: '12' }, '13', '14' ],
  					[ '20', '23', '24' ]
  				] ) );
  
  				tableUtils.removeRows( root.getChild( 0 ), { at: 1 } );
  
  				expect( getData( model, { withoutSelection: true } ) ).to.equalMarkup( modelTable( [
  					[ '00', { rowspan: 2, contents: '01' }, '02', '03', '04' ],
  					[ '20', '12', '23', '24' ]
  				] ) );
  			} );
  
  			it( 'should remove row in a table with a non-row element', () => {
  				setData( model,
  					'<table>' +
  						'<tableRow>' +
  							'<tableCell><paragraph>00</paragraph></tableCell>' +
  							'<tableCell><paragraph>01</paragraph></tableCell>' +
  						'</tableRow>' +
  						'<tableRow>' +
  							'<tableCell><paragraph>[]10</paragraph></tableCell>' +
  							'<tableCell><paragraph>11</paragraph></tableCell>' +
  						'</tableRow>' +
  						'<foo>An extra element</foo>' +
  					'</table>'
  				);
  
  				tableUtils.removeRows( root.getChild( 0 ), { at: 1 } );
  
  				expect( getData( model ) ).to.equalMarkup(
  					'<table>' +
  						'<tableRow>' +
  							'<tableCell><paragraph>00</paragraph></tableCell>' +
  							'<tableCell><paragraph>01</paragraph></tableCell>' +
  						'</tableRow>' +
  						'<foo>[]An extra element</foo>' +
  					'</table>'
  				);
  			} );
  		} );
  
  		describe( 'many rows', () => {
  			it( 'should properly remove middle rows', () => {
  				setData( model, modelTable( [
  					[ '00', '01' ],
  					[ '10', '11' ],
  					[ '20', '21' ],
  					[ '30', '31' ]
  				] ) );
  
  				tableUtils.removeRows( root.getChild( 0 ), { at: 1, rows: 2 } );
  
  				expect( getData( model, { withoutSelection: true } ) ).to.equalMarkup( modelTable( [
  					[ '00', '01' ],
  					[ '30', '31' ]
  				] ) );
  			} );
  
  			it( 'should properly remove tailing rows', () => {
  				setData( model, modelTable( [
  					[ '00', '01' ],
  					[ '10', '11' ],
  					[ '20', '21' ],
  					[ '30', '31' ]
  				] ) );
  
  				tableUtils.removeRows( root.getChild( 0 ), { at: 2, rows: 2 } );
  
  				expect( getData( model, { withoutSelection: true } ) ).to.equalMarkup( modelTable( [
  					[ '00', '01' ],
  					[ '10', '11' ]
  				] ) );
  			} );
  
  			it( 'should properly remove beginning rows', () => {
  				setData( model, modelTable( [
  					[ '00', '01' ],
  					[ '10', '11' ],
  					[ '20', '21' ],
  					[ '30', '31' ]
  				] ) );
  
  				tableUtils.removeRows( root.getChild( 0 ), { at: 0, rows: 2 } );
  
  				expect( getData( model, { withoutSelection: true } ) ).to.equalMarkup( modelTable( [
  					[ '20', '21' ],
  					[ '30', '31' ]
  				] ) );
  			} );
  
  			it( 'should support removing multiple headings (removed rows in heading section)', () => {
  				setData( model, modelTable( [
  					[ '00', '01' ],
  					[ '10', '11' ],
  					[ '20', '21' ],
  					[ '30', '31' ]
  				], { headingRows: 3 } ) );
  
  				tableUtils.removeRows( root.getChild( 0 ), { at: 0, rows: 2 } );
  
  				expect( getData( model, { withoutSelection: true } ) ).to.equalMarkup( modelTable( [
  					[ '20', '21' ],
  					[ '30', '31' ]
  				], { headingRows: 1 } ) );
  			} );
  
  			it( 'should support removing multiple headings (removed rows in heading and body section)', () => {
  				setData( model, modelTable( [
  					[ '00', '01' ],
  					[ '10', '11' ],
  					[ '20', '21' ],
  					[ '30', '31' ],
  					[ '40', '41' ]
  				], { headingRows: 3 } ) );
  
  				tableUtils.removeRows( root.getChild( 0 ), { at: 1, rows: 3 } );
  
  				expect( getData( model, { withoutSelection: true } ) ).to.equalMarkup( modelTable( [
  					[ '00', '01' ],
  					[ '40', '41' ]
  				], { headingRows: 1 } ) );
  			} );
  
  			it( 'should support removing mixed heading and cell rows', () => {
  				setData( model, modelTable( [
  					[ '00', '01' ],
  					[ '10', '11' ],
  					[ '20', '21' ]
  				], { headingRows: 1 } ) );
  
  				tableUtils.removeRows( root.getChild( 0 ), { at: 0, rows: 2 } );
  
  				expect( getData( model, { withoutSelection: true } ) ).to.equalMarkup( modelTable( [
  					[ '20', '21' ]
  				] ) );
  			} );
  
  			it( 'should move row-spanned cells to a row after removed rows section', () => {
  				setData( model, modelTable( [
  					[ '00', '01', '02', '03' ],
  					[ { rowspan: 4, contents: '10' }, { rowspan: 3, contents: '11' }, { rowspan: 2, contents: '12' }, '13' ],
  					[ { rowspan: 3, contents: '23' } ],
  					[ '32' ],
  					[ '41', '42' ]
  				] ) );
  
  				tableUtils.removeRows( root.getChild( 0 ), { at: 1, rows: 2 } );
  
  				expect( getData( model, { withoutSelection: true } ) ).to.equalMarkup( modelTable( [
  					[ '00', '01', '02', '03' ],
  					[ { rowspan: 2, contents: '10' }, '11', '32', { rowspan: 2, contents: '23' } ],
  					[ '41', '42' ]
  				] ) );
  			} );
  
  			it( 'should decrease rowspan of table cells from rows before removed rows section', () => {
  				setData( model, modelTable( [
  					[ { rowspan: 4, contents: '00' }, { rowspan: 3, contents: '01' }, { rowspan: 2, contents: '02' }, '03' ],
  					[ '13' ],
  					[ '22', '23' ],
  					[ '31', '32', '33' ]
  				] ) );
  
  				tableUtils.removeRows( root.getChild( 0 ), { at: 1, rows: 2 } );
  
  				expect( getData( model, { withoutSelection: true } ) ).to.equalMarkup( modelTable( [
  					[ { rowspan: 2, contents: '00' }, '01', '02', '03' ],
  					[ '31', '32', '33' ]
  				] ) );
  			} );
  
  			it( 'should decrease rowspan of table cells from previous rows', () => {
  				// +----+----+----+----+----+
  				// | 00 | 01 | 02 | 03 | 04 |
  				// +----+    +    +    +    +
  				// | 10 |    |    |    |    |
  				// +----+----+    +    +    +
  				// | 20 | 21 |    |    |    |
  				// +----+----+----+    +    +
  				// | 30 | 31 | 32 |    |    |
  				// +----+----+----+----+    +
  				// | 40 | 41 | 42 | 43 |    |
  				// +----+----+----+----+----+
  				// | 50 | 51 | 52 | 53 | 54 |
  				// +----+----+----+----+----+
  				setData( model, modelTable( [
  					[ '00', { contents: '01', rowspan: 2 }, { contents: '02', rowspan: 3 }, { contents: '03', rowspan: 4 },
  						{ contents: '04', rowspan: 5 } ],
  					[ '10' ],
  					[ '20', '21' ],
  					[ '30', '31', '32' ],
  					[ '40', '41', '42', '43' ],
  					[ '50', '51', '52', '53', '54' ]
  				] ) );
  
  				tableUtils.removeRows( root.getChild( 0 ), { at: 2, rows: 2 } );
  
  				// +----+----+----+----+----+
  				// | 00 | 01 | 02 | 03 | 04 |
  				// +----+    +    +    +    +
  				// | 10 |    |    |    |    |
  				// +----+----+----+----+    +
  				// | 40 | 41 | 42 | 43 |    |
  				// +----+----+----+----+----+
  				// | 50 | 51 | 52 | 53 | 54 |
  				// +----+----+----+----+----+
  				expect( getData( model, { withoutSelection: true } ) ).to.equalMarkup( modelTable( [
  					[ '00', { contents: '01', rowspan: 2 }, { contents: '02', rowspan: 2 }, { contents: '03', rowspan: 2 },
  						{ contents: '04', rowspan: 3 } ],
  					[ '10' ],
  					[ '40', '41', '42', '43' ],
  					[ '50', '51', '52', '53', '54' ]
  				] ) );
  			} );
  
  			it( 'should re-use batch to create one undo step', () => {
  				setData( model, modelTable( [
  					[ '00', '01' ],
  					[ '10', '11' ],
  					[ '20', '21' ],
  					[ '30', '31' ]
  				], { headingRows: 3 } ) );
  
  				const createdBatches = new Set();
  
  				model.on( 'applyOperation', ( evt, args ) => {
  					const operation = args[ 0 ];
  
  					createdBatches.add( operation.batch );
  				} );
  
  				const batch = model.createBatch();
  
  				tableUtils.removeRows( root.getChild( 0 ), { at: 0, rows: 2, batch } );
  
  				expect( createdBatches.size ).to.equal( 1 );
  			} );
  
  			it( 'should throw the error when provided options point to a non-existent rows', () => {
  				setData( model,
  					'<table>' +
  						'<tableRow>' +
  							'<tableCell><paragraph>00</paragraph></tableCell>' +
  							'<tableCell><paragraph>01</paragraph></tableCell>' +
  						'</tableRow>' +
  						'<tableRow>' +
  							'<tableCell><paragraph>[]10</paragraph></tableCell>' +
  							'<tableCell><paragraph>11</paragraph></tableCell>' +
  						'</tableRow>' +
  					'<foo>An extra element</foo>' +
  					'</table>'
  				);
  
  				expect(
  					() => tableUtils.removeRows( root.getChild( 0 ), { at: 1, rows: 2 } )
  				).to.throw(
  					CKEditorError,
  					'tableutils-removerows-row-index-out-of-range'
  				);
  			} );
  		} );
  	} );
  
  	describe( 'removeColumns()', () => {
  		describe( 'single row', () => {
  			it( 'should remove a given column', () => {
  				setData( model, modelTable( [
  					[ '00', '01', '02' ],
  					[ '10', '11', '12' ],
  					[ '20', '21', '22' ]
  				] ) );
  
  				tableUtils.removeColumns( root.getNodeByPath( [ 0 ] ), { at: 1 } );
  
  				expect( getData( model, { withoutSelection: true } ) ).to.equalMarkup( modelTable( [
  					[ '00', '02' ],
  					[ '10', '12' ],
  					[ '20', '22' ]
  				] ) );
  			} );
  
  			it( 'should remove a given column from a table start', () => {
  				setData( model, modelTable( [
  					[ '00', '01' ],
  					[ '10', '11' ],
  					[ '20', '21' ]
  				] ) );
  
  				tableUtils.removeColumns( root.getNodeByPath( [ 0 ] ), { at: 0 } );
  
  				expect( getData( model, { withoutSelection: true } ) ).to.equalMarkup( modelTable( [
  					[ '01' ],
  					[ '11' ],
  					[ '21' ]
  				] ) );
  			} );
  
  			it( 'should change heading columns if removing a heading column', () => {
  				setData( model, modelTable( [
  					[ '00', '01' ],
  					[ '10', '11' ],
  					[ '20', '21' ]
  				], { headingColumns: 2 } ) );
  
  				tableUtils.removeColumns( root.getNodeByPath( [ 0 ] ), { at: 0 } );
  
  				expect( getData( model, { withoutSelection: true } ) ).to.equalMarkup( modelTable( [
  					[ '01' ],
  					[ '11' ],
  					[ '21' ]
  				], { headingColumns: 1 } ) );
  			} );
  
  			it( 'should decrease colspan of table cells from previous column', () => {
  				setData( model, modelTable( [
  					[ { colspan: 4, contents: '00' }, '04' ],
  					[ { colspan: 3, contents: '10' }, '13', '14' ],
  					[ { colspan: 2, contents: '20' }, '22', '23', '24' ],
  					[ '30', { colspan: 2, contents: '31' }, '33', '34' ],
  					[ '40', '41', '42', '43', '44' ]
  				] ) );
  
  				tableUtils.removeColumns( root.getNodeByPath( [ 0 ] ), { at: 2 } );
  
  				expect( getData( model, { withoutSelection: true } ) ).to.equalMarkup( modelTable( [
  					[ { colspan: 3, contents: '00' }, '04' ],
  					[ { colspan: 2, contents: '10' }, '13', '14' ],
  					[ { colspan: 2, contents: '20' }, '23', '24' ],
  					[ '30', '31', '33', '34' ],
  					[ '40', '41', '43', '44' ]
  
  				] ) );
  			} );
  
  			it( 'should decrease colspan of cells that are on removed column', () => {
  				setData( model, modelTable( [
  					[ { colspan: 3, contents: '00' }, '03' ],
  					[ { colspan: 2, contents: '10' }, '12', '13' ],
  					[ '20', '21', '22', '23' ]
  				] ) );
  
  				tableUtils.removeColumns( root.getNodeByPath( [ 0 ] ), { at: 0 } );
  
  				expect( getData( model, { withoutSelection: true } ) ).to.equalMarkup( modelTable( [
  					[ { colspan: 2, contents: '00' }, '03' ],
  					[ '10', '12', '13' ],
  					[ '21', '22', '23' ]
  				] ) );
  			} );
  
  			it( 'should remove column with rowspan (first column)', () => {
  				setData( model, modelTable( [
  					[ { rowspan: 2, contents: '00' }, '01' ],
  					[ '11' ]
  				] ) );
  
  				tableUtils.removeColumns( root.getNodeByPath( [ 0 ] ), { at: 0 } );
  
  				expect( getData( model, { withoutSelection: true } ) ).to.equalMarkup( modelTable( [
  					[ '01' ],
  					[ '11' ]
  				] ) );
  			} );
  
  			it( 'should remove column with rowspan (last column)', () => {
  				setData( model, modelTable( [
  					[ '00', { rowspan: 2, contents: '01' } ],
  					[ '10' ]
  				] ) );
  
  				tableUtils.removeColumns( root.getNodeByPath( [ 0 ] ), { at: 1 } );
  
  				expect( getData( model, { withoutSelection: true } ) ).to.equalMarkup( modelTable( [
  					[ '00' ],
  					[ '10' ]
  				] ) );
  			} );
  
  			it( 'should remove column if other column is row-spanned (last column)', () => {
  				setData( model, modelTable( [
  					[ '00', { rowspan: 2, contents: '01' } ],
  					[ '10' ]
  				] ) );
  
  				tableUtils.removeColumns( root.getNodeByPath( [ 0 ] ), { at: 0 } );
  
  				expect( getData( model, { withoutSelection: true } ) ).to.equalMarkup( modelTable( [
  					[ '01' ]
  				] ) );
  			} );
  
  			it( 'should remove column if other column is row-spanned (first column)', () => {
  				setData( model, modelTable( [
  					[ { rowspan: 2, contents: '00' }, '01' ],
  					[ '11' ]
  				] ) );
  
  				tableUtils.removeColumns( root.getNodeByPath( [ 0 ] ), { at: 1 } );
  
  				expect( getData( model, { withoutSelection: true } ) ).to.equalMarkup( modelTable( [
  					[ '00' ]
  				] ) );
  			} );
  
  			it( 'should remove column if removing row with one column - other columns are spanned', () => {
  				setData( model, modelTable( [
  					[ '00', { rowspan: 2, contents: '01' }, { rowspan: 2, contents: '02' } ],
  					[ '10' ],
  					[ '20', '21', '22' ]
  				] ) );
  
  				tableUtils.removeColumns( root.getNodeByPath( [ 0 ] ), { at: 0 } );
  
  				expect( getData( model, { withoutSelection: true } ) ).to.equalMarkup( modelTable( [
  					[ '01', '02' ],
  					[ '21', '22' ]
  				] ) );
  			} );
  
  			it( 'should remove the column properly when multiple rows should be removed (because of to row-spans)', () => {
  				setData( model, modelTable( [
  					[ '00', { contents: '01', rowspan: 3 }, { contents: '02', rowspan: 3 } ],
  					[ '10' ],
  					[ '20' ]
  				] ) );
  
  				tableUtils.removeColumns( root.getNodeByPath( [ 0 ] ), { at: 0 } );
  
  				expect( getData( model, { withoutSelection: true } ) ).to.equalMarkup( modelTable( [
  					[ '01', '02' ]
  				] ) );
  			} );
  
  			it( 'should remove column in a table with a non-row element', () => {
  				setData( model,
  					'<table>' +
  						'<tableRow>' +
  							'<tableCell><paragraph>00</paragraph></tableCell>' +
  							'<tableCell><paragraph>01</paragraph></tableCell>' +
  						'</tableRow>' +
  						'<tableRow>' +
  							'<tableCell><paragraph>[]10</paragraph></tableCell>' +
  							'<tableCell><paragraph>11</paragraph></tableCell>' +
  						'</tableRow>' +
  					'<foo>An extra element</foo>' +
  					'</table>'
  				);
  
  				tableUtils.removeColumns( root.getChild( 0 ), { at: 0 } );
  
  				expect( getData( model ) ).to.equalMarkup(
  					'<table>' +
  						'<tableRow>' +
  							'<tableCell><paragraph>01</paragraph></tableCell>' +
  						'</tableRow>' +
  						'<tableRow>' +
  							'<tableCell><paragraph>[]11</paragraph></tableCell>' +
  						'</tableRow>' +
  						'<foo>An extra element</foo>' +
  					'</table>'
  				);
  			} );
  		} );
  
  		describe( 'multiple columns', () => {
  			it( 'should properly remove two first columns', () => {
  				setData( model, modelTable( [
  					[ '00', '01', '02' ],
  					[ '10', '11', '12' ],
  					[ '20', '21', '22' ],
  					[ '30', '31', '32' ]
  				] ) );
  
  				tableUtils.removeColumns( root.getNodeByPath( [ 0 ] ), { at: 0, columns: 2 } );
  
  				expect( getData( model, { withoutSelection: true } ) ).to.equalMarkup( modelTable( [
  					[ '02' ],
  					[ '12' ],
  					[ '22' ],
  					[ '32' ]
  				] ) );
  			} );
  
  			it( 'should properly remove two middle columns', () => {
  				setData( model, modelTable( [
  					[ '00', '01', '02', '03' ],
  					[ '10', '11', '12', '13' ],
  					[ '20', '21', '22', '23' ],
  					[ '30', '31', '32', '33' ]
  				] ) );
  
  				tableUtils.removeColumns( root.getNodeByPath( [ 0 ] ), { at: 1, columns: 2 } );
  
  				expect( getData( model, { withoutSelection: true } ) ).to.equalMarkup( modelTable( [
  					[ '00', '03' ],
  					[ '10', '13' ],
  					[ '20', '23' ],
  					[ '30', '33' ]
  				] ) );
  			} );
  
  			it( 'should properly remove two last columns', () => {
  				setData( model, modelTable( [
  					[ '00', '01', '02' ],
  					[ '10', '11', '12' ],
  					[ '20', '21', '22' ],
  					[ '30', '31', '32' ]
  				] ) );
  
  				tableUtils.removeColumns( root.getNodeByPath( [ 0 ] ), { at: 1, columns: 2 } );
  
  				expect( getData( model, { withoutSelection: true } ) ).to.equalMarkup( modelTable( [
  					[ '00' ],
  					[ '10' ],
  					[ '20' ],
  					[ '30' ]
  				] ) );
  			} );
  
  			it( 'should properly remove multiple heading columns', () => {
  				setData( model, modelTable( [
  					[ '00', '01', '02', '03', '04' ],
  					[ '10', '11', '12', '13', '14' ]
  				], { headingColumns: 3 } ) );
  
  				tableUtils.removeColumns( root.getNodeByPath( [ 0 ] ), { at: 1, columns: 3 } );
  
  				expect( getData( model, { withoutSelection: true } ) ).to.equalMarkup( modelTable( [
  					[ '00', '04' ],
  					[ '10', '14' ]
  				], { headingColumns: 1 } ) );
  			} );
  
  			it( 'should properly calculate truncated colspans', () => {
  				setData( model, modelTable( [
  					[ { contents: '00', colspan: 3 } ],
  					[ '10', '11', '12' ],
  					[ '20', '21', '22' ]
  				] ) );
  
  				tableUtils.removeColumns( root.getNodeByPath( [ 0 ] ), { at: 0, columns: 2 } );
  
  				expect( getData( model, { withoutSelection: true } ) ).to.equalMarkup( modelTable( [
  					[ '00' ],
  					[ '12' ],
  					[ '22' ]
  				] ) );
  			} );
  
  			it( 'should remove column in a table with a non-row element', () => {
  				setData( model,
  					'<table>' +
  						'<tableRow>' +
  							'<tableCell><paragraph>00</paragraph></tableCell>' +
  							'<tableCell><paragraph>01</paragraph></tableCell>' +
  						'</tableRow>' +
  						'<tableRow>' +
  							'<tableCell><paragraph>[]10</paragraph></tableCell>' +
  							'<tableCell><paragraph>11</paragraph></tableCell>' +
  						'</tableRow>' +
  					'<foo>An extra element</foo>' +
  					'</table>'
  				);
  
  				tableUtils.removeColumns( root.getChild( 0 ), { at: 1, columns: 1 } );
  
  				expect( getData( model ) ).to.equalMarkup(
  					'<table>' +
  						'<tableRow>' +
  							'<tableCell><paragraph>00</paragraph></tableCell>' +
  						'</tableRow>' +
  						'<tableRow>' +
  							'<tableCell><paragraph>[]10</paragraph></tableCell>' +
  						'</tableRow>' +
  						'<foo>An extra element</foo>' +
  					'</table>'
  				);
  			} );
  		} );
  	} );
  
  	describe( 'createTable()', () => {
  		it( 'should create table', () => {
  			setData( model, '[]' );
  
  			model.change( writer => {
  				const table = tableUtils.createTable( writer, { rows: 3, columns: 2 } );
  
  				model.insertContent( table, model.document.selection.focus );
  			} );
  
  			expect( getData( model, { withoutSelection: true } ) ).to.equalMarkup( modelTable( [
  				[ '', '' ],
  				[ '', '' ],
  				[ '', '' ]
  			] ) );
  		} );
  
  		it( 'should create table with heading rows', () => {
  			setData( model, '[]' );
  
  			model.change( writer => {
  				const table = tableUtils.createTable( writer, { rows: 3, columns: 2, headingRows: 1 } );
  
  				model.insertContent( table, model.document.selection.focus );
  			} );
  
  			expect( getData( model, { withoutSelection: true } ) ).to.equalMarkup( modelTable( [
  				[ '', '' ],
  				[ '', '' ],
  				[ '', '' ]
  			], { headingRows: 1 } ) );
  		} );
  
  		it( 'should create table with heading columns', () => {
  			setData( model, '[]' );
  
  			model.change( writer => {
  				const table = tableUtils.createTable( writer, { rows: 3, columns: 2, headingColumns: 1 } );
  
  				model.insertContent( table, model.document.selection.focus );
  			} );
  
  			expect( getData( model, { withoutSelection: true } ) ).to.equalMarkup( modelTable( [
  				[ '', '' ],
  				[ '', '' ],
  				[ '', '' ]
  			], { headingColumns: 1 } ) );
  		} );
  
  		it( 'should create table with heading rows and columns', () => {
  			setData( model, '[]' );
  
  			model.change( writer => {
  				const table = tableUtils.createTable( writer, { rows: 3, columns: 2, headingRows: 2, headingColumns: 1 } );
  
  				model.insertContent( table, model.document.selection.focus );
  			} );
  
  			expect( getData( model, { withoutSelection: true } ) ).to.equalMarkup( modelTable( [
  				[ '', '' ],
  				[ '', '' ],
  				[ '', '' ]
  			], { headingRows: 2, headingColumns: 1 } ) );
  		} );
  
  		it( 'should clamp table heading rows and columns to the rows and columns number', () => {
  			setData( model, '[]' );
  
  			model.change( writer => {
  				const table = tableUtils.createTable( writer, { rows: 2, columns: 2, headingRows: 3, headingColumns: 3 } );
  
  				model.insertContent( table, model.document.selection.focus );
  			} );
  
  			expect( getData( model, { withoutSelection: true } ) ).to.equalMarkup( modelTable( [
  				[ '', '' ],
  				[ '', '' ]
  			], { headingRows: 2, headingColumns: 2 } ) );
  		} );
  	} );
  } );
  