text: /**
   * @license Copyright (c) 2003-2020, CKSource - Frederico Knabben. All rights reserved.
   * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license
   */
  
  import ClassicTestEditor from '@ckeditor/ckeditor5-core/tests/_utils/classictesteditor';
  import { getData as getModelData } from '@ckeditor/ckeditor5-engine/src/dev-utils/model';
  import Paragraph from '@ckeditor/ckeditor5-paragraph/src/paragraph';
  import ImageEditing from '@ckeditor/ckeditor5-image/src/image/imageediting';
  import Widget from '@ckeditor/ckeditor5-widget/src/widget';
  
  import { modelTable } from '../_utils/utils';
  import TableEditing from '../../src/tableediting';
  import { assertEqualMarkup } from '@ckeditor/ckeditor5-utils/tests/_utils/utils';
  
  describe( 'upcastTable()', () => {
  	let editor, model;
  
  	beforeEach( () => {
  		return ClassicTestEditor
  			.create( '', {
  				plugins: [ TableEditing, Paragraph, ImageEditing, Widget ]
  			} )
  			.then( newEditor => {
  				editor = newEditor;
  				model = editor.model;
  
  				// Since this part of test tests only view->model conversion editing pipeline is not necessary
  				// so defining model->view converters won't be necessary.
  				editor.editing.destroy();
  			} );
  	} );
  
  	afterEach( () => {
  		editor.destroy();
  	} );
  
  	function expectModel( data ) {
  		assertEqualMarkup( getModelData( model, { withoutSelection: true } ), data );
  	}
  
  	it( 'should convert table figure', () => {
  		editor.setData(
  			'<figure class="table">' +
  			'<table>' +
  			'<tr><td>1</td></tr>' +
  			'</table>' +
  			'</figure>'
  		);
  
  		expectModel(
  			'<table>' +
  			'<tableRow><tableCell><paragraph>1</paragraph></tableCell></tableRow>' +
  			'</table>'
  		);
  	} );
  
  	it( 'should create table model from table without thead', () => {
  		editor.setData(
  			'<table>' +
  			'<tr><td>1</td></tr>' +
  			'</table>'
  		);
  
  		expectModel(
  			'<table>' +
  			'<tableRow><tableCell><paragraph>1</paragraph></tableCell></tableRow>' +
  			'</table>'
  		);
  	} );
  
  	it( 'should not convert empty figure', () => {
  		'<figure class="table"></figure>';
  
  		expectModel( '<paragraph></paragraph>' );
  	} );
  
  	it( 'should convert if figure do not have class="table" attribute', () => {
  		editor.setData(
  			'<figure>' +
  			'<table>' +
  			'<tr><td>1</td></tr>' +
  			'</table>' +
  			'</figure>'
  		);
  
  		expectModel(
  			'<table>' +
  			'<tableRow><tableCell><paragraph>1</paragraph></tableCell></tableRow>' +
  			'</table>'
  		);
  	} );
  
  	it( 'should create table model from table with one thead with one row', () => {
  		editor.setData(
  			'<table>' +
  			'<thead><tr><td>1</td></tr></thead>' +
  			'</table>'
  		);
  
  		expectModel(
  			'<table headingRows="1">' +
  			'<tableRow><tableCell><paragraph>1</paragraph></tableCell></tableRow>' +
  			'</table>'
  		);
  	} );
  
  	it( 'should create table model from table with one thead with more then one row', () => {
  		editor.setData(
  			'<table>' +
  			'<thead>' +
  			'<tr><td>1</td></tr>' +
  			'<tr><td>2</td></tr>' +
  			'<tr><td>3</td></tr>' +
  			'</thead>' +
  			'</table>'
  		);
  
  		expectModel(
  			'<table headingRows="3">' +
  			'<tableRow><tableCell><paragraph>1</paragraph></tableCell></tableRow>' +
  			'<tableRow><tableCell><paragraph>2</paragraph></tableCell></tableRow>' +
  			'<tableRow><tableCell><paragraph>3</paragraph></tableCell></tableRow>' +
  			'</table>'
  		);
  	} );
  
  	it( 'should create table model from table with two theads with one row', () => {
  		editor.setData(
  			'<table>' +
  			'<thead><tr><td>1</td></tr></thead>' +
  			'<tbody><tr><td>2</td></tr></tbody>' +
  			'<thead><tr><td>3</td></tr></thead>' +
  			'</table>'
  		);
  
  		expectModel(
  			'<table headingRows="1">' +
  			'<tableRow><tableCell><paragraph>1</paragraph></tableCell></tableRow>' +
  			'<tableRow><tableCell><paragraph>2</paragraph></tableCell></tableRow>' +
  			'<tableRow><tableCell><paragraph>3</paragraph></tableCell></tableRow>' +
  			'</table>'
  		);
  	} );
  
  	it( 'should create table model from table with thead after the tbody', () => {
  		editor.setData(
  			'<table>' +
  			'<tbody><tr><td>2</td></tr></tbody>' +
  			'<thead><tr><td>1</td></tr></thead>' +
  			'</table>'
  		);
  
  		expectModel(
  			'<table headingRows="1">' +
  			'<tableRow><tableCell><paragraph>1</paragraph></tableCell></tableRow>' +
  			'<tableRow><tableCell><paragraph>2</paragraph></tableCell></tableRow>' +
  			'</table>'
  		);
  	} );
  
  	it( 'should create table model from table with one tfoot with one row', () => {
  		editor.setData(
  			'<table>' +
  			'<tfoot><tr><td>1</td></tr></tfoot>' +
  			'</table>'
  		);
  
  		expectModel(
  			'<table>' +
  			'<tableRow><tableCell><paragraph>1</paragraph></tableCell></tableRow>' +
  			'</table>'
  		);
  	} );
  
  	it( 'should create valid table model from empty table', () => {
  		editor.setData(
  			'<table>' +
  			'</table>'
  		);
  
  		expectModel(
  			'<table><tableRow><tableCell><paragraph></paragraph></tableCell></tableRow></table>'
  		);
  	} );
  
  	it( 'should create valid table model from all empty rows', () => {
  		editor.setData(
  			'<table>' +
  				'<tr></tr>' +
  				'<tr></tr>' +
  			'</table>'
  		);
  
  		expectModel(
  			'<table><tableRow><tableCell><paragraph></paragraph></tableCell></tableRow></table>'
  		);
  	} );
  
  	it( 'should skip empty table rows', () => {
  		editor.setData(
  			'<table>' +
  				'<tr></tr>' +
  				'<tr><td>bar</td></tr>' +
  			'</table>'
  		);
  
  		expectModel(
  			'<table><tableRow><tableCell><paragraph>bar</paragraph></tableCell></tableRow></table>'
  		);
  	} );
  
  	it( 'should skip unknown table children', () => {
  		editor.setData(
  			'<table>' +
  			'<caption>foo</caption>' +
  			'<tr><td>bar</td></tr>' +
  			'</table>'
  		);
  
  		expectModel(
  			'<table><tableRow><tableCell><paragraph>bar</paragraph></tableCell></tableRow></table>'
  		);
  	} );
  
  	it( 'should create table model from some broken table', () => {
  		editor.setData(
  			'<table><td><z>foo</z></td></table>'
  		);
  
  		expectModel(
  			'<table><tableRow><tableCell><paragraph>foo</paragraph></tableCell></tableRow></table>'
  		);
  	} );
  
  	it( 'should fix if inside other blocks', () => {
  		editor.model.schema.register( 'div', {
  			inheritAllFrom: '$block'
  		} );
  		editor.conversion.for( 'upcast' ).elementToElement( { model: 'div', view: 'div' } );
  
  		editor.setData(
  			'<div>foo' +
  			'<table>' +
  			'<tbody><tr><td>2</td></tr></tbody>' +
  			'<thead><tr><td>1</td></tr></thead>' +
  			'</table>' +
  			'bar</div>'
  		);
  
  		expectModel(
  			'<div>foo</div>' +
  			'<table headingRows="1">' +
  			'<tableRow><tableCell><paragraph>1</paragraph></tableCell></tableRow>' +
  			'<tableRow><tableCell><paragraph>2</paragraph></tableCell></tableRow>' +
  			'</table>' +
  			'<div>bar</div>'
  		);
  	} );
  
  	it( 'should be possible to overwrite table conversion', () => {
  		editor.model.schema.register( 'fooTable', {
  			allowWhere: '$block',
  			allowAttributes: [ 'headingRows' ],
  			isObject: true
  		} );
  		editor.model.schema.register( 'fooCell', {
  			allowIn: 'fooRow',
  			isObject: true
  		} );
  		editor.model.schema.register( 'fooRow', {
  			allowIn: 'fooTable',
  			isObject: true
  		} );
  
  		editor.conversion.elementToElement( { model: 'fooTable', view: 'table', converterPriority: 'high' } );
  		editor.conversion.elementToElement( { model: 'fooRow', view: 'tr', converterPriority: 'high' } );
  		editor.conversion.elementToElement( { model: 'fooCell', view: 'td', converterPriority: 'high' } );
  		editor.conversion.elementToElement( { model: 'fooCell', view: 'th', converterPriority: 'high' } );
  
  		editor.setData(
  			'<table>' +
  			'<thead><tr><td>foo</td></tr></thead>' +
  			'</table>'
  		);
  
  		expectModel(
  			'<fooTable><fooRow><fooCell><paragraph></paragraph></fooCell></fooRow></fooTable>'
  		);
  	} );
  
  	it( 'should strip table in table', () => {
  		editor.setData(
  			'<table>' +
  				'<tr>' +
  					'<td>' +
  						'<table>' +
  							'<tr>' +
  								'<td>tableception</td>' +
  							'</tr>' +
  						'</table>' +
  					'</td>' +
  				'</tr>' +
  			'</table>'
  		);
  
  		expectModel(
  			'<table>' +
  				'<tableRow>' +
  					'<tableCell>' +
  						'<paragraph>tableception</paragraph>' +
  					'</tableCell>' +
  				'</tableRow>' +
  			'</table>'
  		);
  	} );
  
  	describe( 'headingColumns', () => {
  		it( 'should properly calculate heading columns', () => {
  			editor.setData(
  				'<table>' +
  				'<tbody>' +
  				// This row starts with 1 th (3 total).
  				'<tr><th>21</th><td>22</td><th>23</th><th>24</th></tr>' +
  				// This row starts with 2 th (2 total). This one has max number of heading columns: 2.
  				'<tr><th>31</th><th>32</th><td>33</td><td>34</td></tr>' +
  				// This row starts with 1 th (1 total).
  				'<tr><th>41</th><td>42</td><td>43</td><td>44</td></tr>' +
  				// This row starts with 0 th (3 total).
  				'<tr><td>51</td><th>52</th><th>53</th><th>54</th></tr>' +
  				'</tbody>' +
  				'<thead>' +
  				// This row has 4 ths but it is a thead.
  				'<tr><th>11</th><th>12</th><th>13</th><th>14</th></tr>' +
  				'</thead>' +
  				'</table>'
  			);
  
  			expectModel(
  				'<table headingColumns="2" headingRows="1">' +
  				'<tableRow>' +
  					'<tableCell><paragraph>11</paragraph></tableCell>' +
  					'<tableCell><paragraph>12</paragraph></tableCell>' +
  					'<tableCell><paragraph>13</paragraph></tableCell>' +
  					'<tableCell><paragraph>14</paragraph></tableCell>' +
  				'</tableRow>' +
  				'<tableRow>' +
  					'<tableCell><paragraph>21</paragraph></tableCell>' +
  					'<tableCell><paragraph>22</paragraph></tableCell>' +
  					'<tableCell><paragraph>23</paragraph></tableCell>' +
  					'<tableCell><paragraph>24</paragraph></tableCell>' +
  				'</tableRow>' +
  				'<tableRow>' +
  					'<tableCell><paragraph>31</paragraph></tableCell>' +
  					'<tableCell><paragraph>32</paragraph></tableCell>' +
  					'<tableCell><paragraph>33</paragraph></tableCell>' +
  					'<tableCell><paragraph>34</paragraph></tableCell>' +
  				'</tableRow>' +
  				'<tableRow>' +
  					'<tableCell><paragraph>41</paragraph></tableCell>' +
  					'<tableCell><paragraph>42</paragraph></tableCell>' +
  					'<tableCell><paragraph>43</paragraph></tableCell>' +
  					'<tableCell><paragraph>44</paragraph></tableCell>' +
  				'</tableRow>' +
  				'<tableRow>' +
  					'<tableCell><paragraph>51</paragraph></tableCell>' +
  					'<tableCell><paragraph>52</paragraph></tableCell>' +
  					'<tableCell><paragraph>53</paragraph></tableCell>' +
  					'<tableCell><paragraph>54</paragraph></tableCell>' +
  				'</tableRow>' +
  				'</table>'
  			);
  		} );
  
  		it( 'should calculate heading columns of cells with colspan', () => {
  			editor.setData(
  				'<table>' +
  				'<tbody>' +
  				// This row has colspan of 3 so it should be the whole table should have 3 heading columns.
  				'<tr><th>21</th><th>22</th><td>23</td><td>24</td></tr>' +
  				'<tr><th colspan="2">31</th><th>33</th><td>34</td></tr>' +
  				'</tbody>' +
  				'<thead>' +
  				// This row has 4 ths but it is a thead.
  				'<tr><th>11</th><th>12</th><th>13</th><th>14</th></tr>' +
  				'</thead>' +
  				'</table>'
  			);
  
  			expectModel(
  				'<table headingColumns="3" headingRows="1">' +
  				'<tableRow>' +
  					'<tableCell><paragraph>11</paragraph></tableCell>' +
  					'<tableCell><paragraph>12</paragraph></tableCell>' +
  					'<tableCell><paragraph>13</paragraph></tableCell>' +
  					'<tableCell><paragraph>14</paragraph></tableCell>' +
  				'</tableRow>' +
  				'<tableRow>' +
  					'<tableCell><paragraph>21</paragraph></tableCell>' +
  					'<tableCell><paragraph>22</paragraph></tableCell>' +
  					'<tableCell><paragraph>23</paragraph></tableCell>' +
  					'<tableCell><paragraph>24</paragraph></tableCell>' +
  				'</tableRow>' +
  				'<tableRow>' +
  				'<tableCell colspan="2"><paragraph>31</paragraph></tableCell>' +
  					'<tableCell><paragraph>33</paragraph></tableCell>' +
  					'<tableCell><paragraph>34</paragraph></tableCell>' +
  				'</tableRow>' +
  				'</table>'
  			);
  		} );
  	} );
  
  	describe( 'block contents', () => {
  		it( 'should upcast table with empty table cell to paragraph', () => {
  			editor.setData(
  				'<table>' +
  					'<tbody>' +
  						'<tr>' +
  							'<td>foo</td>' +
  						'</tr>' +
  					'</tbody>' +
  				'</table>'
  			);
  
  			expectModel( modelTable( [
  				[ 'foo' ]
  			] ) );
  		} );
  
  		it( 'should upcast table with <p> in table cell', () => {
  			editor.setData(
  				'<table>' +
  					'<tbody>' +
  						'<tr>' +
  							'<td><p>foo</p></td>' +
  						'</tr>' +
  					'</tbody>' +
  				'</table>'
  			);
  
  			expectModel( modelTable( [
  				[ 'foo' ]
  			] ) );
  		} );
  
  		it( 'should upcast table inline content to single <paragraph>', () => {
  			editor.model.schema.extend( '$text', { allowAttributes: 'bold' } );
  			editor.conversion.attributeToElement( { model: 'bold', view: 'strong' } );
  
  			editor.setData(
  				'<table>' +
  					'<tbody>' +
  						'<tr>' +
  							'<td>foo <strong>bar</strong></td>' +
  						'</tr>' +
  					'</tbody>' +
  				'</table>'
  			);
  
  			expectModel( modelTable( [
  				[ 'foo <$text bold="true">bar</$text>' ]
  			] ) );
  		} );
  
  		it( 'should upcast table with multiple <p> in table cell', () => {
  			editor.setData(
  				'<table>' +
  					'<tbody>' +
  						'<tr>' +
  							'<td>' +
  								'<p>foo</p>' +
  								'<p>bar</p>' +
  								'<p>baz</p>' +
  							'</td>' +
  						'</tr>' +
  					'</tbody>' +
  				'</table>'
  			);
  
  			expectModel( modelTable( [
  				[ '<paragraph>foo</paragraph><paragraph>bar</paragraph><paragraph>baz</paragraph>' ]
  			] ) );
  		} );
  
  		it( 'should upcast table with <img> in table cell', () => {
  			editor.setData(
  				'<table>' +
  					'<tbody>' +
  						'<tr>' +
  							'<td><img src="sample.png"></td>' +
  						'</tr>' +
  					'</tbody>' +
  				'</table>'
  			);
  
  			expectModel( modelTable( [
  				[ '<image src="sample.png"></image>' ]
  			] ) );
  		} );
  	} );
  
  	describe( 'inline contents', () => {
  		it( 'should upcast inline element inside a table cell', () => {
  			model.schema.register( 'inline', { allowWhere: '$text', isInline: true } );
  			model.schema.extend( '$text', { allowIn: 'inline' } );
  			editor.conversion.elementToElement( { model: 'inline', view: 'span' } );
  
  			editor.setData(
  				'<table>' +
  					'<tr>' +
  						'<td>' +
  							'<span>foo</span>' +
  						'</td>' +
  					'</tr>' +
  				'</table>'
  			);
  
  			expectModel( modelTable( [
  				[ '<paragraph><inline>foo</inline></paragraph>' ]
  			] ) );
  		} );
  
  		it( 'should upcast inline object inside a table cell', () => {
  			model.schema.register( 'inline', { allowWhere: '$text', isInline: true, isObject: true } );
  			model.schema.extend( '$text', { allowIn: 'inline' } );
  			editor.conversion.elementToElement( { model: 'inline', view: 'span' } );
  
  			editor.setData(
  				'<table>' +
  					'<tr>' +
  						'<td>' +
  							'<span>foo</span>' +
  						'</td>' +
  					'</tr>' +
  				'</table>'
  			);
  
  			expectModel( modelTable( [
  				[ '<paragraph><inline>foo</inline></paragraph>' ]
  			] ) );
  		} );
  	} );
  
  	describe( 'handling redundant whitespacing between table elements', () => {
  		it( 'table without thead/tbody/tfoot', () => {
  			editor.setData(
  				'<table> ' +
  					'<tr> <td>1</td></tr>' +
  				'</table>'
  			);
  
  			expectModel(
  				'<table>' +
  					'<tableRow><tableCell><paragraph>1</paragraph></tableCell></tableRow>' +
  				'</table>'
  			);
  		} );
  
  		it( 'table with thead only', () => {
  			editor.setData(
  				'<table>' +
  					'<thead>' +
  						'<tr><td>1</td></tr> ' +
  						'<tr><td>2</td></tr>' +
  						' <tr><td>3</td></tr>' +
  					'</thead>' +
  				'</table>'
  			);
  
  			expectModel(
  				'<table headingRows="3">' +
  					'<tableRow><tableCell><paragraph>1</paragraph></tableCell></tableRow>' +
  					'<tableRow><tableCell><paragraph>2</paragraph></tableCell></tableRow>' +
  					'<tableRow><tableCell><paragraph>3</paragraph></tableCell></tableRow>' +
  				'</table>'
  			);
  		} );
  
  		it( 'table with thead and tbody', () => {
  			editor.setData(
  				'<table>' +
  					'<thead>   ' +
  						'<tr><td>1</td></tr>' +
  						'<tr><td>2</td></tr>\n\n   ' +
  					'</thead>' +
  					'<tbody>' +
  						'<tr><td>3</td></tr> ' +
  						'\n\n    <tr><td>4</td></tr>' +
  						'<tr>    <td>5</td></tr> ' +
  					'</tbody>' +
  				'</table>'
  			);
  
  			expectModel(
  				'<table headingRows="2">' +
  					'<tableRow><tableCell><paragraph>1</paragraph></tableCell></tableRow>' +
  					'<tableRow><tableCell><paragraph>2</paragraph></tableCell></tableRow>' +
  					'<tableRow><tableCell><paragraph>3</paragraph></tableCell></tableRow>' +
  					'<tableRow><tableCell><paragraph>4</paragraph></tableCell></tableRow>' +
  					'<tableRow><tableCell><paragraph>5</paragraph></tableCell></tableRow>' +
  				'</table>'
  			);
  		} );
  
  		it( 'table with tbody and tfoot', () => {
  			editor.setData(
  				'<table>' +
  					'<tbody>' +
  						'     <tr><td>1</td></tr>' +
  						'<tr><td>2</td></tr>' +
  						'<tr><td>3</td></tr> ' +
  						'<tr><td>4</td></tr>\n\n\n' +
  					'</tbody>\n\n' +
  					'   <tfoot>' +
  						'<tr>  <td>5</td>\n\n\n</tr>   ' +
  					'</tfoot>' +
  				'</table>'
  			);
  
  			expectModel(
  				'<table>' +
  				'<tableRow><tableCell><paragraph>1</paragraph></tableCell></tableRow>' +
  				'<tableRow><tableCell><paragraph>2</paragraph></tableCell></tableRow>' +
  				'<tableRow><tableCell><paragraph>3</paragraph></tableCell></tableRow>' +
  				'<tableRow><tableCell><paragraph>4</paragraph></tableCell></tableRow>' +
  				'<tableRow><tableCell><paragraph>5</paragraph></tableCell></tableRow>' +
  				'</table>'
  			);
  		} );
  	} );
  } );
  