Jelajahi Sumber

Tests: mapper.clearBindings.

Piotr Jasiun 9 tahun lalu
induk
melakukan
7a607d2e10
1 mengubah file dengan 343 tambahan dan 306 penghapusan
  1. 343 306
      packages/ckeditor5-engine/tests/conversion/mapper.js

+ 343 - 306
packages/ckeditor5-engine/tests/conversion/mapper.js

@@ -21,350 +21,387 @@ import ViewPosition from '/ckeditor5/engine/view/position.js';
 import ViewRange from '/ckeditor5/engine/view/range.js';
 
 describe( 'Mapper', () => {
-	let modelDiv, modelP, modelImg;
-
-	let viewDiv, viewP, viewB, viewI, viewU, viewSup, viewImg;
-	let viewTextB, viewTextO, viewTextM, viewTextX, viewTextY, viewTextZZ, viewTextFOO, viewTextBAR;
-
-	let mapper;
-
-	before( () => {
-		// Tree Model:
-		//
-		// <div>             ---> modelDiv
-		//   ├─ x
-		//   ├─ <p>          ---> modelP
-		//   │   ├─ y
-		//   │   ├─ f {b,i}
-		//   │   ├─ o {b,i}
-		//   │   ├─ o {b,i}
-		//   │   ├─ b
-		//   │   ├─ a
-		//   │   ├─ r
-		//   │   ├─ <img>    ---> modelImg
-		//   │   ├─ b {u}
-		//   │   ├─ o {u,sup}
-		//   │   └─ m {u}
-		//   ├─ z
-		//   └─ z
-		//
-		// Tree View:
-		//
-		// <div>                 ---> viewDiv
-		//   ├─ x                ---> viewTextX
-		//   ├─ <p>              ---> viewP
-		//   │   ├─ y            ---> viewTextY
-		//   │   ├─ <b>          ---> viewB
-		//   │   │   └─ <i>      ---> viewI
-		//   │   │       └─ foo  ---> viewTextFOO
-		//   │   ├─ bar          ---> viewTextBAR
-		//   │   ├─ <img>        ---> viewImg
-		//   │   └─ <u>          ---> viewU
-		//   │       ├─ b        ---> viewTextB
-		//   │       ├─ <sup>    ---> viewSup
-		//   │       │    └─ o   ---> viewTextO
-		//   │       └─ m        ---> viewTextM
-		//   └─ zz               ---> viewTextZZ
-
-		modelImg = new ModelElement( 'img' );
-		modelP = new ModelElement( 'p', {}, [
-			'y',
-			new ModelText( 'foo', { b: true, i: true } ),
-			'bar',
-			modelImg,
-			new ModelText( 'b', { u: true } ),
-			new ModelText( 'o', { u: true, sup: true } ),
-			new ModelText( 'm', { u: true } )
-		] );
-
-		modelDiv = new ModelRootElement();
-		modelDiv.appendChildren( [
-			'x',
-			modelP,
-			'zz'
-		] );
-
-		viewTextB = new ViewText( 'b' );
-		viewTextO = new ViewText( 'o' );
-		viewTextM = new ViewText( 'm' );
-		viewTextX = new ViewText( 'x' );
-		viewTextY = new ViewText( 'y' );
-		viewTextZZ = new ViewText( 'zz' );
-		viewTextFOO = new ViewText( 'foo' );
-		viewTextBAR = new ViewText( 'bar' );
-		viewImg = new ViewElement( 'img' );
-		viewSup = new ViewElement( 'sup', {}, [ viewTextO ] );
-		viewU = new ViewElement( 'u', {}, [ viewTextB, viewSup, viewTextM ] );
-		viewI = new ViewElement( 'i', {}, [ viewTextFOO ] );
-		viewB = new ViewElement( 'b', {}, [ viewI ] );
-		viewP = new ViewElement( 'p', {}, [ viewTextY, viewB, viewTextBAR, viewImg, viewU ] );
-		viewDiv = new ViewElement( 'div', {}, [ viewTextX, viewP, viewTextZZ ] );
-
-		mapper = new Mapper();
-		mapper.bindElements( modelP, viewP );
-		mapper.bindElements( modelDiv, viewDiv );
-		mapper.bindElements( modelImg, viewImg );
+	describe( 'clearBindings', () => {
+		it( 'should remove all mapping', () => {
+			const viewA = new ViewElement( 'a' );
+			const viewB = new ViewElement( 'b' );
+			const viewC = new ViewElement( 'c' );
+
+			const modelA = new ModelElement( 'a' );
+			const modelB = new ModelElement( 'b' );
+			const modelC = new ModelElement( 'c' );
+
+			const mapper = new Mapper();
+			mapper.bindElements( modelA, viewA );
+			mapper.bindElements( modelB, viewB );
+			mapper.bindElements( modelC, viewC );
+
+			expect( mapper.toModelElement( viewA ) ).to.equal( modelA );
+			expect( mapper.toModelElement( viewB ) ).to.equal( modelB );
+			expect( mapper.toModelElement( viewC ) ).to.equal( modelC );
+
+			expect( mapper.toViewElement( modelA ) ).to.equal( viewA );
+			expect( mapper.toViewElement( modelB ) ).to.equal( viewB );
+			expect( mapper.toViewElement( modelC ) ).to.equal( viewC );
+
+			mapper.clearBindings();
+
+			expect( mapper.toModelElement( viewA ) ).to.be.undefined;
+			expect( mapper.toModelElement( viewB ) ).to.be.undefined;
+			expect( mapper.toModelElement( viewC ) ).to.be.undefined;
+
+			expect( mapper.toViewElement( modelA ) ).to.be.undefined;
+			expect( mapper.toViewElement( modelB ) ).to.be.undefined;
+			expect( mapper.toViewElement( modelC ) ).to.be.undefined;
+		} );
 	} );
 
-	describe( 'toModelElement', () => {
-		it( 'should return corresponding model element', () => {
-			expect( mapper.toModelElement( viewP ) ).to.equal( modelP );
-			expect( mapper.toModelElement( viewDiv ) ).to.equal( modelDiv );
-			expect( mapper.toModelElement( viewImg ) ).to.equal( modelImg );
+	describe( 'Standard mapping', () => {
+		let modelDiv, modelP, modelImg;
+
+		let viewDiv, viewP, viewB, viewI, viewU, viewSup, viewImg;
+		let viewTextB, viewTextO, viewTextM, viewTextX, viewTextY, viewTextZZ, viewTextFOO, viewTextBAR;
+
+		let mapper;
+
+		before( () => {
+			// Tree Model:
+			//
+			// <div>             ---> modelDiv
+			//   ├─ x
+			//   ├─ <p>          ---> modelP
+			//   │   ├─ y
+			//   │   ├─ f {b,i}
+			//   │   ├─ o {b,i}
+			//   │   ├─ o {b,i}
+			//   │   ├─ b
+			//   │   ├─ a
+			//   │   ├─ r
+			//   │   ├─ <img>    ---> modelImg
+			//   │   ├─ b {u}
+			//   │   ├─ o {u,sup}
+			//   │   └─ m {u}
+			//   ├─ z
+			//   └─ z
+			//
+			// Tree View:
+			//
+			// <div>                 ---> viewDiv
+			//   ├─ x                ---> viewTextX
+			//   ├─ <p>              ---> viewP
+			//   │   ├─ y            ---> viewTextY
+			//   │   ├─ <b>          ---> viewB
+			//   │   │   └─ <i>      ---> viewI
+			//   │   │       └─ foo  ---> viewTextFOO
+			//   │   ├─ bar          ---> viewTextBAR
+			//   │   ├─ <img>        ---> viewImg
+			//   │   └─ <u>          ---> viewU
+			//   │       ├─ b        ---> viewTextB
+			//   │       ├─ <sup>    ---> viewSup
+			//   │       │    └─ o   ---> viewTextO
+			//   │       └─ m        ---> viewTextM
+			//   └─ zz               ---> viewTextZZ
+
+			modelImg = new ModelElement( 'img' );
+			modelP = new ModelElement( 'p', {}, [
+				'y',
+				new ModelText( 'foo', { b: true, i: true } ),
+				'bar',
+				modelImg,
+				new ModelText( 'b', { u: true } ),
+				new ModelText( 'o', { u: true, sup: true } ),
+				new ModelText( 'm', { u: true } )
+			] );
+
+			modelDiv = new ModelRootElement();
+			modelDiv.appendChildren( [
+				'x',
+				modelP,
+				'zz'
+			] );
+
+			viewTextB = new ViewText( 'b' );
+			viewTextO = new ViewText( 'o' );
+			viewTextM = new ViewText( 'm' );
+			viewTextX = new ViewText( 'x' );
+			viewTextY = new ViewText( 'y' );
+			viewTextZZ = new ViewText( 'zz' );
+			viewTextFOO = new ViewText( 'foo' );
+			viewTextBAR = new ViewText( 'bar' );
+			viewImg = new ViewElement( 'img' );
+			viewSup = new ViewElement( 'sup', {}, [ viewTextO ] );
+			viewU = new ViewElement( 'u', {}, [ viewTextB, viewSup, viewTextM ] );
+			viewI = new ViewElement( 'i', {}, [ viewTextFOO ] );
+			viewB = new ViewElement( 'b', {}, [ viewI ] );
+			viewP = new ViewElement( 'p', {}, [ viewTextY, viewB, viewTextBAR, viewImg, viewU ] );
+			viewDiv = new ViewElement( 'div', {}, [ viewTextX, viewP, viewTextZZ ] );
+
+			mapper = new Mapper();
+			mapper.bindElements( modelP, viewP );
+			mapper.bindElements( modelDiv, viewDiv );
+			mapper.bindElements( modelImg, viewImg );
 		} );
-	} );
 
-	describe( 'toViewElement', () => {
-		it( 'should return corresponding view element', () => {
-			expect( mapper.toViewElement( modelP ) ).to.equal( viewP );
-			expect( mapper.toViewElement( modelDiv ) ).to.equal( viewDiv );
-			expect( mapper.toViewElement( modelImg ) ).to.equal( viewImg );
+		describe( 'toModelElement', () => {
+			it( 'should return corresponding model element', () => {
+				expect( mapper.toModelElement( viewP ) ).to.equal( modelP );
+				expect( mapper.toModelElement( viewDiv ) ).to.equal( modelDiv );
+				expect( mapper.toModelElement( viewImg ) ).to.equal( modelImg );
+			} );
 		} );
-	} );
 
-	describe( 'toModelPosition', () => {
-		function createToModelTest( viewElement, viewOffset, modelElement, modelOffset ) {
-			const viewPosition = new ViewPosition( viewElement, viewOffset );
-			const modelPosition = mapper.toModelPosition( viewPosition );
-			expect( modelPosition.parent ).to.equal( modelElement );
-			expect( modelPosition.offset ).to.equal( modelOffset );
-		}
+		describe( 'toViewElement', () => {
+			it( 'should return corresponding view element', () => {
+				expect( mapper.toViewElement( modelP ) ).to.equal( viewP );
+				expect( mapper.toViewElement( modelDiv ) ).to.equal( viewDiv );
+				expect( mapper.toViewElement( modelImg ) ).to.equal( viewImg );
+			} );
+		} );
 
-		it( 'should transform viewDiv 0', () => createToModelTest( viewDiv, 0, modelDiv, 0 ) );
-		it( 'should transform viewDiv 1', () => createToModelTest( viewDiv, 1, modelDiv, 1 ) );
-		it( 'should transform viewDiv 2', () => createToModelTest( viewDiv, 2, modelDiv, 2 ) );
-		it( 'should transform viewDiv 3', () => createToModelTest( viewDiv, 3, modelDiv, 4 ) );
+		describe( 'toModelPosition', () => {
+			function createToModelTest( viewElement, viewOffset, modelElement, modelOffset ) {
+				const viewPosition = new ViewPosition( viewElement, viewOffset );
+				const modelPosition = mapper.toModelPosition( viewPosition );
+				expect( modelPosition.parent ).to.equal( modelElement );
+				expect( modelPosition.offset ).to.equal( modelOffset );
+			}
 
-		it( 'should transform viewTextX 0', () => createToModelTest( viewTextX, 0, modelDiv, 0 ) );
-		it( 'should transform viewTextX 1', () => createToModelTest( viewTextX, 1, modelDiv, 1 ) );
+			it( 'should transform viewDiv 0', () => createToModelTest( viewDiv, 0, modelDiv, 0 ) );
+			it( 'should transform viewDiv 1', () => createToModelTest( viewDiv, 1, modelDiv, 1 ) );
+			it( 'should transform viewDiv 2', () => createToModelTest( viewDiv, 2, modelDiv, 2 ) );
+			it( 'should transform viewDiv 3', () => createToModelTest( viewDiv, 3, modelDiv, 4 ) );
 
-		it( 'should transform viewP 0', () => createToModelTest( viewP, 0, modelP, 0 ) );
-		it( 'should transform viewP 1', () => createToModelTest( viewP, 1, modelP, 1 ) );
-		it( 'should transform viewP 2', () => createToModelTest( viewP, 2, modelP, 4 ) );
-		it( 'should transform viewP 3', () => createToModelTest( viewP, 3, modelP, 7 ) );
-		it( 'should transform viewP 4', () => createToModelTest( viewP, 4, modelP, 8 ) );
-		it( 'should transform viewP 5', () => createToModelTest( viewP, 5, modelP, 11 ) );
+			it( 'should transform viewTextX 0', () => createToModelTest( viewTextX, 0, modelDiv, 0 ) );
+			it( 'should transform viewTextX 1', () => createToModelTest( viewTextX, 1, modelDiv, 1 ) );
 
-		it( 'should transform viewTextY 0', () => createToModelTest( viewTextY, 0, modelP, 0 ) );
-		it( 'should transform viewTextY 1', () => createToModelTest( viewTextY, 1, modelP, 1 ) );
+			it( 'should transform viewP 0', () => createToModelTest( viewP, 0, modelP, 0 ) );
+			it( 'should transform viewP 1', () => createToModelTest( viewP, 1, modelP, 1 ) );
+			it( 'should transform viewP 2', () => createToModelTest( viewP, 2, modelP, 4 ) );
+			it( 'should transform viewP 3', () => createToModelTest( viewP, 3, modelP, 7 ) );
+			it( 'should transform viewP 4', () => createToModelTest( viewP, 4, modelP, 8 ) );
+			it( 'should transform viewP 5', () => createToModelTest( viewP, 5, modelP, 11 ) );
 
-		it( 'should transform viewB 0', () => createToModelTest( viewB, 0, modelP, 1 ) );
-		it( 'should transform viewB 1', () => createToModelTest( viewB, 1, modelP, 4 ) );
+			it( 'should transform viewTextY 0', () => createToModelTest( viewTextY, 0, modelP, 0 ) );
+			it( 'should transform viewTextY 1', () => createToModelTest( viewTextY, 1, modelP, 1 ) );
 
-		it( 'should transform viewI 0', () => createToModelTest( viewI, 0, modelP, 1 ) );
-		it( 'should transform viewI 1', () => createToModelTest( viewI, 1, modelP, 4 ) );
+			it( 'should transform viewB 0', () => createToModelTest( viewB, 0, modelP, 1 ) );
+			it( 'should transform viewB 1', () => createToModelTest( viewB, 1, modelP, 4 ) );
 
-		it( 'should transform viewTextFOO 0', () => createToModelTest( viewTextFOO, 0, modelP, 1 ) );
-		it( 'should transform viewTextFOO 1', () => createToModelTest( viewTextFOO, 1, modelP, 2 ) );
-		it( 'should transform viewTextFOO 2', () => createToModelTest( viewTextFOO, 2, modelP, 3 ) );
-		it( 'should transform viewTextFOO 3', () => createToModelTest( viewTextFOO, 3, modelP, 4 ) );
+			it( 'should transform viewI 0', () => createToModelTest( viewI, 0, modelP, 1 ) );
+			it( 'should transform viewI 1', () => createToModelTest( viewI, 1, modelP, 4 ) );
 
-		it( 'should transform viewTextBAR 0', () => createToModelTest( viewTextBAR, 0, modelP, 4 ) );
-		it( 'should transform viewTextBAR 1', () => createToModelTest( viewTextBAR, 1, modelP, 5 ) );
-		it( 'should transform viewTextBAR 2', () => createToModelTest( viewTextBAR, 2, modelP, 6 ) );
-		it( 'should transform viewTextBAR 3', () => createToModelTest( viewTextBAR, 3, modelP, 7 ) );
+			it( 'should transform viewTextFOO 0', () => createToModelTest( viewTextFOO, 0, modelP, 1 ) );
+			it( 'should transform viewTextFOO 1', () => createToModelTest( viewTextFOO, 1, modelP, 2 ) );
+			it( 'should transform viewTextFOO 2', () => createToModelTest( viewTextFOO, 2, modelP, 3 ) );
+			it( 'should transform viewTextFOO 3', () => createToModelTest( viewTextFOO, 3, modelP, 4 ) );
 
-		it( 'should transform viewU 0', () => createToModelTest( viewU, 0, modelP, 8 ) );
-		it( 'should transform viewU 1', () => createToModelTest( viewU, 1, modelP, 9 ) );
-		it( 'should transform viewU 2', () => createToModelTest( viewU, 2, modelP, 10 ) );
-		it( 'should transform viewU 3', () => createToModelTest( viewU, 3, modelP, 11 ) );
+			it( 'should transform viewTextBAR 0', () => createToModelTest( viewTextBAR, 0, modelP, 4 ) );
+			it( 'should transform viewTextBAR 1', () => createToModelTest( viewTextBAR, 1, modelP, 5 ) );
+			it( 'should transform viewTextBAR 2', () => createToModelTest( viewTextBAR, 2, modelP, 6 ) );
+			it( 'should transform viewTextBAR 3', () => createToModelTest( viewTextBAR, 3, modelP, 7 ) );
 
-		it( 'should transform viewTextB 0', () => createToModelTest( viewTextB, 0, modelP, 8 ) );
-		it( 'should transform viewTextB 1', () => createToModelTest( viewTextB, 1, modelP, 9 ) );
+			it( 'should transform viewU 0', () => createToModelTest( viewU, 0, modelP, 8 ) );
+			it( 'should transform viewU 1', () => createToModelTest( viewU, 1, modelP, 9 ) );
+			it( 'should transform viewU 2', () => createToModelTest( viewU, 2, modelP, 10 ) );
+			it( 'should transform viewU 3', () => createToModelTest( viewU, 3, modelP, 11 ) );
 
-		it( 'should transform viewSup 0', () => createToModelTest( viewSup, 0, modelP, 9 ) );
-		it( 'should transform viewSup 1', () => createToModelTest( viewSup, 1, modelP, 10 ) );
+			it( 'should transform viewTextB 0', () => createToModelTest( viewTextB, 0, modelP, 8 ) );
+			it( 'should transform viewTextB 1', () => createToModelTest( viewTextB, 1, modelP, 9 ) );
 
-		it( 'should transform viewTextO 0', () => createToModelTest( viewTextO, 0, modelP, 9 ) );
-		it( 'should transform viewTextO 1', () => createToModelTest( viewTextO, 1, modelP, 10 ) );
+			it( 'should transform viewSup 0', () => createToModelTest( viewSup, 0, modelP, 9 ) );
+			it( 'should transform viewSup 1', () => createToModelTest( viewSup, 1, modelP, 10 ) );
 
-		it( 'should transform viewTextM 0', () => createToModelTest( viewTextM, 0, modelP, 10 ) );
-		it( 'should transform viewTextM 1', () => createToModelTest( viewTextM, 1, modelP, 11 ) );
+			it( 'should transform viewTextO 0', () => createToModelTest( viewTextO, 0, modelP, 9 ) );
+			it( 'should transform viewTextO 1', () => createToModelTest( viewTextO, 1, modelP, 10 ) );
 
-		it( 'should transform viewTextZZ 0', () => createToModelTest( viewTextZZ, 0, modelDiv, 2 ) );
-		it( 'should transform viewTextZZ 1', () => createToModelTest( viewTextZZ, 1, modelDiv, 3 ) );
-		it( 'should transform viewTextZZ 2', () => createToModelTest( viewTextZZ, 2, modelDiv, 4 ) );
-	} );
+			it( 'should transform viewTextM 0', () => createToModelTest( viewTextM, 0, modelP, 10 ) );
+			it( 'should transform viewTextM 1', () => createToModelTest( viewTextM, 1, modelP, 11 ) );
 
-	describe( 'toViewPosition', () => {
-		function createToViewTest( modelElement, modelOffset, viewElement, viewOffset ) {
-			const modelPosition = ModelPosition.createFromParentAndOffset( modelElement, modelOffset );
-			const viewPosition = mapper.toViewPosition( modelPosition );
-			expect( viewPosition.parent ).to.equal( viewElement );
-			expect( viewPosition.offset ).to.equal( viewOffset );
-		}
-
-		it( 'should transform modelDiv 0', () => createToViewTest( modelDiv, 0, viewTextX, 0 ) );
-		it( 'should transform modelDiv 1', () => createToViewTest( modelDiv, 1, viewTextX, 1 ) );
-		it( 'should transform modelDiv 2', () => createToViewTest( modelDiv, 2, viewTextZZ, 0 ) );
-		it( 'should transform modelDiv 3', () => createToViewTest( modelDiv, 3, viewTextZZ, 1 ) );
-		it( 'should transform modelDiv 4', () => createToViewTest( modelDiv, 4, viewTextZZ, 2 ) );
-
-		it( 'should transform modelP 0', () => createToViewTest( modelP, 0, viewTextY, 0 ) );
-		it( 'should transform modelP 1', () => createToViewTest( modelP, 1, viewTextY, 1 ) );
-		it( 'should transform modelP 2', () => createToViewTest( modelP, 2, viewTextFOO, 1 ) );
-		it( 'should transform modelP 3', () => createToViewTest( modelP, 3, viewTextFOO, 2 ) );
-		it( 'should transform modelP 4', () => createToViewTest( modelP, 4, viewTextBAR, 0 ) );
-		it( 'should transform modelP 5', () => createToViewTest( modelP, 5, viewTextBAR, 1 ) );
-		it( 'should transform modelP 6', () => createToViewTest( modelP, 6, viewTextBAR, 2 ) );
-		it( 'should transform modelP 7', () => createToViewTest( modelP, 7, viewTextBAR, 3 ) );
-		it( 'should transform modelP 8', () => createToViewTest( modelP, 8, viewP, 4 ) );
-		it( 'should transform modelP 9', () => createToViewTest( modelP, 9, viewTextB, 1 ) );
-		it( 'should transform modelP 10', () => createToViewTest( modelP, 10, viewTextM, 0 ) );
-		it( 'should transform modelP 11', () => createToViewTest( modelP, 11, viewP, 5 ) );
-	} );
+			it( 'should transform viewTextZZ 0', () => createToModelTest( viewTextZZ, 0, modelDiv, 2 ) );
+			it( 'should transform viewTextZZ 1', () => createToModelTest( viewTextZZ, 1, modelDiv, 3 ) );
+			it( 'should transform viewTextZZ 2', () => createToModelTest( viewTextZZ, 2, modelDiv, 4 ) );
+		} );
 
-	describe( 'toModelRange', () => {
-		it( 'should transform range', () => {
-			const viewRange = ViewRange.createFromParentsAndOffsets( viewDiv, 0, viewTextFOO, 2 );
-			const modelRange = mapper.toModelRange( viewRange );
-			expect( modelRange.start.parent ).to.equal( modelDiv );
-			expect( modelRange.start.offset ).to.equal( 0 );
-			expect( modelRange.end.parent ).to.equal( modelP );
-			expect( modelRange.end.offset ).to.equal( 3 );
+		describe( 'toViewPosition', () => {
+			function createToViewTest( modelElement, modelOffset, viewElement, viewOffset ) {
+				const modelPosition = ModelPosition.createFromParentAndOffset( modelElement, modelOffset );
+				const viewPosition = mapper.toViewPosition( modelPosition );
+				expect( viewPosition.parent ).to.equal( viewElement );
+				expect( viewPosition.offset ).to.equal( viewOffset );
+			}
+
+			it( 'should transform modelDiv 0', () => createToViewTest( modelDiv, 0, viewTextX, 0 ) );
+			it( 'should transform modelDiv 1', () => createToViewTest( modelDiv, 1, viewTextX, 1 ) );
+			it( 'should transform modelDiv 2', () => createToViewTest( modelDiv, 2, viewTextZZ, 0 ) );
+			it( 'should transform modelDiv 3', () => createToViewTest( modelDiv, 3, viewTextZZ, 1 ) );
+			it( 'should transform modelDiv 4', () => createToViewTest( modelDiv, 4, viewTextZZ, 2 ) );
+
+			it( 'should transform modelP 0', () => createToViewTest( modelP, 0, viewTextY, 0 ) );
+			it( 'should transform modelP 1', () => createToViewTest( modelP, 1, viewTextY, 1 ) );
+			it( 'should transform modelP 2', () => createToViewTest( modelP, 2, viewTextFOO, 1 ) );
+			it( 'should transform modelP 3', () => createToViewTest( modelP, 3, viewTextFOO, 2 ) );
+			it( 'should transform modelP 4', () => createToViewTest( modelP, 4, viewTextBAR, 0 ) );
+			it( 'should transform modelP 5', () => createToViewTest( modelP, 5, viewTextBAR, 1 ) );
+			it( 'should transform modelP 6', () => createToViewTest( modelP, 6, viewTextBAR, 2 ) );
+			it( 'should transform modelP 7', () => createToViewTest( modelP, 7, viewTextBAR, 3 ) );
+			it( 'should transform modelP 8', () => createToViewTest( modelP, 8, viewP, 4 ) );
+			it( 'should transform modelP 9', () => createToViewTest( modelP, 9, viewTextB, 1 ) );
+			it( 'should transform modelP 10', () => createToViewTest( modelP, 10, viewTextM, 0 ) );
+			it( 'should transform modelP 11', () => createToViewTest( modelP, 11, viewP, 5 ) );
 		} );
-	} );
 
-	describe( 'toViewRange', () => {
-		it( 'should transform range', () => {
-			const modelRange = ModelRange.createFromParentsAndOffsets( modelDiv, 0, modelP, 3 );
-			const viewRange = mapper.toViewRange( modelRange );
-			expect( viewRange.start.parent ).to.equal( viewTextX );
-			expect( viewRange.start.offset ).to.equal( 0 );
-			expect( viewRange.end.parent ).to.equal( viewTextFOO );
-			expect( viewRange.end.offset ).to.equal( 2 );
+		describe( 'toModelRange', () => {
+			it( 'should transform range', () => {
+				const viewRange = ViewRange.createFromParentsAndOffsets( viewDiv, 0, viewTextFOO, 2 );
+				const modelRange = mapper.toModelRange( viewRange );
+				expect( modelRange.start.parent ).to.equal( modelDiv );
+				expect( modelRange.start.offset ).to.equal( 0 );
+				expect( modelRange.end.parent ).to.equal( modelP );
+				expect( modelRange.end.offset ).to.equal( 3 );
+			} );
 		} );
-	} );
-} );
 
-describe( 'Mapper for widget', () => {
-	let modelDiv, modelWidget, modelImg, modelCaption;
-
-	let viewDiv, viewWidget, viewMask, viewWrapper, viewImg, viewCaption;
-	let viewTextX, viewTextFOO, viewTextZZ, viewTextLABEL;
-
-	let mapper;
-
-	before( () => {
-		// Tree Model:
-		//
-		// <div>                 ---> modelDiv
-		//   ├─ x
-		//   ├─ <widget>         ---> modelWidget
-		//   │   ├─ <img>        ---> modelImg
-		//   │   └─ <caption>    ---> modelCaption
-		//   │       ├─ f
-		//   │       ├─ o
-		//   │       └─ o
-		//   ├─ z
-		//   └─ z
-		//
-		// Tree View:
-		//
-		// <div>                     ---> viewDiv
-		//   ├─ x                    ---> viewTextX
-		//   ├─ <widget>             ---> viewWidget
-		//   │   ├─ <mask>           ---> viewMask
-		//   │   │   └─ label        ---> viewTextLABEL
-		//   │   └─ <wrapper>        ---> viewWrapper
-		//   │       ├─ <img>        ---> viewImg
-		//   │       └─ <caption>    ---> viewCaption
-		//   │           └─ foo      ---> viewTextFOO
-		//   └─ zz                   ---> viewTextZZ
-
-		modelImg = new ModelElement( 'img' );
-		modelCaption = new ModelElement( 'caption', {}, 'foo' );
-		modelWidget = new ModelElement( 'widget', {}, [ modelImg, modelCaption ] );
-		modelDiv = new ModelRootElement();
-		modelDiv.appendChildren( [ 'x', modelWidget, 'zz' ] );
-
-		viewTextX = new ViewText( 'y' );
-		viewTextZZ = new ViewText( 'zz' );
-		viewTextFOO = new ViewText( 'foo' );
-		viewTextLABEL = new ViewText( 'label' );
-
-		viewImg = new ViewElement( 'img' );
-		viewMask = new ViewElement( 'mask', {}, [ viewTextLABEL ] );
-		viewCaption = new ViewElement( 'caption', {}, [ viewTextFOO ] );
-		viewWrapper = new ViewElement( 'wrapper', {}, [ viewImg, viewCaption ] );
-		viewWidget = new ViewElement( 'widget', [ viewMask, viewWrapper ] );
-		viewDiv = new ViewElement( 'div', {}, [ viewTextX, viewWidget, viewTextZZ ] );
-
-		mapper = new Mapper();
-		mapper.bindElements( modelDiv, viewDiv );
-		mapper.bindElements( modelWidget, viewWidget );
-		mapper.bindElements( modelImg, viewImg );
-		mapper.bindElements( modelCaption, viewCaption );
+		describe( 'toViewRange', () => {
+			it( 'should transform range', () => {
+				const modelRange = ModelRange.createFromParentsAndOffsets( modelDiv, 0, modelP, 3 );
+				const viewRange = mapper.toViewRange( modelRange );
+				expect( viewRange.start.parent ).to.equal( viewTextX );
+				expect( viewRange.start.offset ).to.equal( 0 );
+				expect( viewRange.end.parent ).to.equal( viewTextFOO );
+				expect( viewRange.end.offset ).to.equal( 2 );
+			} );
+		} );
 	} );
 
-	describe( 'toModelElement', () => {
-		it( 'should return corresponding model element', () => {
-			expect( mapper.toModelElement( viewDiv ) ).to.equal( modelDiv );
-			expect( mapper.toModelElement( viewWidget ) ).to.equal( modelWidget );
-			expect( mapper.toModelElement( viewImg ) ).to.equal( modelImg );
-			expect( mapper.toModelElement( viewCaption ) ).to.equal( modelCaption );
+	describe( 'Widget mapping', () => {
+		let modelDiv, modelWidget, modelImg, modelCaption;
+
+		let viewDiv, viewWidget, viewMask, viewWrapper, viewImg, viewCaption;
+		let viewTextX, viewTextFOO, viewTextZZ, viewTextLABEL;
+
+		let mapper;
+
+		before( () => {
+			// Tree Model:
+			//
+			// <div>                 ---> modelDiv
+			//   ├─ x
+			//   ├─ <widget>         ---> modelWidget
+			//   │   ├─ <img>        ---> modelImg
+			//   │   └─ <caption>    ---> modelCaption
+			//   │       ├─ f
+			//   │       ├─ o
+			//   │       └─ o
+			//   ├─ z
+			//   └─ z
+			//
+			// Tree View:
+			//
+			// <div>                     ---> viewDiv
+			//   ├─ x                    ---> viewTextX
+			//   ├─ <widget>             ---> viewWidget
+			//   │   ├─ <mask>           ---> viewMask
+			//   │   │   └─ label        ---> viewTextLABEL
+			//   │   └─ <wrapper>        ---> viewWrapper
+			//   │       ├─ <img>        ---> viewImg
+			//   │       └─ <caption>    ---> viewCaption
+			//   │           └─ foo      ---> viewTextFOO
+			//   └─ zz                   ---> viewTextZZ
+
+			modelImg = new ModelElement( 'img' );
+			modelCaption = new ModelElement( 'caption', {}, 'foo' );
+			modelWidget = new ModelElement( 'widget', {}, [ modelImg, modelCaption ] );
+			modelDiv = new ModelRootElement();
+			modelDiv.appendChildren( [ 'x', modelWidget, 'zz' ] );
+
+			viewTextX = new ViewText( 'y' );
+			viewTextZZ = new ViewText( 'zz' );
+			viewTextFOO = new ViewText( 'foo' );
+			viewTextLABEL = new ViewText( 'label' );
+
+			viewImg = new ViewElement( 'img' );
+			viewMask = new ViewElement( 'mask', {}, [ viewTextLABEL ] );
+			viewCaption = new ViewElement( 'caption', {}, [ viewTextFOO ] );
+			viewWrapper = new ViewElement( 'wrapper', {}, [ viewImg, viewCaption ] );
+			viewWidget = new ViewElement( 'widget', [ viewMask, viewWrapper ] );
+			viewDiv = new ViewElement( 'div', {}, [ viewTextX, viewWidget, viewTextZZ ] );
+
+			mapper = new Mapper();
+			mapper.bindElements( modelDiv, viewDiv );
+			mapper.bindElements( modelWidget, viewWidget );
+			mapper.bindElements( modelImg, viewImg );
+			mapper.bindElements( modelCaption, viewCaption );
 		} );
-	} );
 
-	describe( 'toViewElement', () => {
-		it( 'should return corresponding view element', () => {
-			expect( mapper.toViewElement( modelDiv ) ).to.equal( viewDiv );
-			expect( mapper.toViewElement( modelWidget ) ).to.equal( viewWidget );
-			expect( mapper.toViewElement( modelImg ) ).to.equal( viewImg );
-			expect( mapper.toViewElement( modelCaption ) ).to.equal( viewCaption );
+		describe( 'toModelElement', () => {
+			it( 'should return corresponding model element', () => {
+				expect( mapper.toModelElement( viewDiv ) ).to.equal( modelDiv );
+				expect( mapper.toModelElement( viewWidget ) ).to.equal( modelWidget );
+				expect( mapper.toModelElement( viewImg ) ).to.equal( modelImg );
+				expect( mapper.toModelElement( viewCaption ) ).to.equal( modelCaption );
+			} );
 		} );
-	} );
 
-	describe( 'toModelPosition', () => {
-		function createToModelTest( viewElement, viewOffset, modelElement, modelOffset ) {
-			const viewPosition = new ViewPosition( viewElement, viewOffset );
-			const modelPosition = mapper.toModelPosition( viewPosition );
-			expect( modelPosition.parent ).to.equal( modelElement );
-			expect( modelPosition.offset ).to.equal( modelOffset );
-		}
+		describe( 'toViewElement', () => {
+			it( 'should return corresponding view element', () => {
+				expect( mapper.toViewElement( modelDiv ) ).to.equal( viewDiv );
+				expect( mapper.toViewElement( modelWidget ) ).to.equal( viewWidget );
+				expect( mapper.toViewElement( modelImg ) ).to.equal( viewImg );
+				expect( mapper.toViewElement( modelCaption ) ).to.equal( viewCaption );
+			} );
+		} );
 
-		it( 'should transform viewDiv 0', () => createToModelTest( viewDiv, 0, modelDiv, 0 ) );
-		it( 'should transform viewDiv 1', () => createToModelTest( viewDiv, 1, modelDiv, 1 ) );
-		it( 'should transform viewDiv 2', () => createToModelTest( viewDiv, 2, modelDiv, 2 ) );
-		it( 'should transform viewDiv 3', () => createToModelTest( viewDiv, 3, modelDiv, 4 ) );
+		describe( 'toModelPosition', () => {
+			function createToModelTest( viewElement, viewOffset, modelElement, modelOffset ) {
+				const viewPosition = new ViewPosition( viewElement, viewOffset );
+				const modelPosition = mapper.toModelPosition( viewPosition );
+				expect( modelPosition.parent ).to.equal( modelElement );
+				expect( modelPosition.offset ).to.equal( modelOffset );
+			}
 
-		it( 'should transform viewTextX 0', () => createToModelTest( viewTextX, 0, modelDiv, 0 ) );
-		it( 'should transform viewTextX 1', () => createToModelTest( viewTextX, 1, modelDiv, 1 ) );
+			it( 'should transform viewDiv 0', () => createToModelTest( viewDiv, 0, modelDiv, 0 ) );
+			it( 'should transform viewDiv 1', () => createToModelTest( viewDiv, 1, modelDiv, 1 ) );
+			it( 'should transform viewDiv 2', () => createToModelTest( viewDiv, 2, modelDiv, 2 ) );
+			it( 'should transform viewDiv 3', () => createToModelTest( viewDiv, 3, modelDiv, 4 ) );
 
-		it( 'should transform viewTextZZ 0', () => createToModelTest( viewTextZZ, 0, modelDiv, 2 ) );
-		it( 'should transform viewTextZZ 1', () => createToModelTest( viewTextZZ, 1, modelDiv, 3 ) );
-		it( 'should transform viewTextZZ 2', () => createToModelTest( viewTextZZ, 2, modelDiv, 4 ) );
+			it( 'should transform viewTextX 0', () => createToModelTest( viewTextX, 0, modelDiv, 0 ) );
+			it( 'should transform viewTextX 1', () => createToModelTest( viewTextX, 1, modelDiv, 1 ) );
 
-		it( 'should transform viewImg 0', () => createToModelTest( viewImg, 0, modelImg, 0 ) );
+			it( 'should transform viewTextZZ 0', () => createToModelTest( viewTextZZ, 0, modelDiv, 2 ) );
+			it( 'should transform viewTextZZ 1', () => createToModelTest( viewTextZZ, 1, modelDiv, 3 ) );
+			it( 'should transform viewTextZZ 2', () => createToModelTest( viewTextZZ, 2, modelDiv, 4 ) );
 
-		it( 'should transform viewCaption 0', () => createToModelTest( viewCaption, 0, modelCaption, 0 ) );
-		it( 'should transform viewCaption 1', () => createToModelTest( viewCaption, 1, modelCaption, 3 ) );
+			it( 'should transform viewImg 0', () => createToModelTest( viewImg, 0, modelImg, 0 ) );
 
-		it( 'should transform viewTextFOO 0', () => createToModelTest( viewTextFOO, 0, modelCaption, 0 ) );
-		it( 'should transform viewTextFOO 1', () => createToModelTest( viewTextFOO, 1, modelCaption, 1 ) );
-		it( 'should transform viewTextFOO 2', () => createToModelTest( viewTextFOO, 2, modelCaption, 2 ) );
-		it( 'should transform viewTextFOO 3', () => createToModelTest( viewTextFOO, 3, modelCaption, 3 ) );
-	} );
+			it( 'should transform viewCaption 0', () => createToModelTest( viewCaption, 0, modelCaption, 0 ) );
+			it( 'should transform viewCaption 1', () => createToModelTest( viewCaption, 1, modelCaption, 3 ) );
+
+			it( 'should transform viewTextFOO 0', () => createToModelTest( viewTextFOO, 0, modelCaption, 0 ) );
+			it( 'should transform viewTextFOO 1', () => createToModelTest( viewTextFOO, 1, modelCaption, 1 ) );
+			it( 'should transform viewTextFOO 2', () => createToModelTest( viewTextFOO, 2, modelCaption, 2 ) );
+			it( 'should transform viewTextFOO 3', () => createToModelTest( viewTextFOO, 3, modelCaption, 3 ) );
+		} );
 
-	describe( 'toViewPosition', () => {
-		function createToViewTest( modelElement, modelOffset, viewElement, viewOffset ) {
-			const modelPosition = ModelPosition.createFromParentAndOffset( modelElement, modelOffset );
-			const viewPosition = mapper.toViewPosition( modelPosition );
-			expect( viewPosition.parent ).to.equal( viewElement );
-			expect( viewPosition.offset ).to.equal( viewOffset );
-		}
-
-		it( 'should transform modelDiv 0', () => createToViewTest( modelDiv, 0, viewTextX, 0 ) );
-		it( 'should transform modelDiv 1', () => createToViewTest( modelDiv, 1, viewTextX, 1 ) );
-		it( 'should transform modelDiv 2', () => createToViewTest( modelDiv, 2, viewTextZZ, 0 ) );
-		it( 'should transform modelDiv 3', () => createToViewTest( modelDiv, 3, viewTextZZ, 1 ) );
-		it( 'should transform modelDiv 4', () => createToViewTest( modelDiv, 4, viewTextZZ, 2 ) );
-
-		it( 'should transform modelImg 0', () => createToViewTest( modelImg, 0, viewImg, 0 ) );
-
-		it( 'should transform modelCaption 0', () => createToViewTest( modelCaption, 0, viewTextFOO, 0 ) );
-		it( 'should transform modelCaption 1', () => createToViewTest( modelCaption, 1, viewTextFOO, 1 ) );
-		it( 'should transform modelCaption 2', () => createToViewTest( modelCaption, 2, viewTextFOO, 2 ) );
-		it( 'should transform modelCaption 3', () => createToViewTest( modelCaption, 3, viewTextFOO, 3 ) );
+		describe( 'toViewPosition', () => {
+			function createToViewTest( modelElement, modelOffset, viewElement, viewOffset ) {
+				const modelPosition = ModelPosition.createFromParentAndOffset( modelElement, modelOffset );
+				const viewPosition = mapper.toViewPosition( modelPosition );
+				expect( viewPosition.parent ).to.equal( viewElement );
+				expect( viewPosition.offset ).to.equal( viewOffset );
+			}
+
+			it( 'should transform modelDiv 0', () => createToViewTest( modelDiv, 0, viewTextX, 0 ) );
+			it( 'should transform modelDiv 1', () => createToViewTest( modelDiv, 1, viewTextX, 1 ) );
+			it( 'should transform modelDiv 2', () => createToViewTest( modelDiv, 2, viewTextZZ, 0 ) );
+			it( 'should transform modelDiv 3', () => createToViewTest( modelDiv, 3, viewTextZZ, 1 ) );
+			it( 'should transform modelDiv 4', () => createToViewTest( modelDiv, 4, viewTextZZ, 2 ) );
+
+			it( 'should transform modelImg 0', () => createToViewTest( modelImg, 0, viewImg, 0 ) );
+
+			it( 'should transform modelCaption 0', () => createToViewTest( modelCaption, 0, viewTextFOO, 0 ) );
+			it( 'should transform modelCaption 1', () => createToViewTest( modelCaption, 1, viewTextFOO, 1 ) );
+			it( 'should transform modelCaption 2', () => createToViewTest( modelCaption, 2, viewTextFOO, 2 ) );
+			it( 'should transform modelCaption 3', () => createToViewTest( modelCaption, 3, viewTextFOO, 3 ) );
+		} );
 	} );
 } );