Tests: added tests for viewToPlainText.

tests/utils/viewtoplaintext.js

@@ -0,0 +1,72 @@
+/**
+ * @license Copyright (c) 2003-2017, CKSource - Frederico Knabben. All rights reserved.
+ * For licensing, see LICENSE.md.
+ */
+
+import viewToPlainText from '../../src/utils/viewtoplaintext';
+
+import { parse as parseView } from '@ckeditor/ckeditor5-engine/src/dev-utils/view';
+
+describe( 'viewToPlainText', () => {
+	function test( viewString, expectedText ) {
+		const view = parseView( viewString );
+		const text = viewToPlainText( view );
+
+		expect( text ).to.equal( expectedText );
+	}
+
+	it( 'should output text contents of given view', () => {
+		test(
+			'<container:p>Foo<strong>Bar</strong>Xyz</container:p>',
+			'FooBarXyz'
+		);
+	} );
+
+	it( 'should put empty line between container elements', () => {
+		test(
+			'<container:h1>Header</container:h1>' +
+			'<container:p>Foo</container:p>' +
+			'<container:p>Bar</container:p>' +
+			'Abc' +
+			'<container:div>Xyz</container:div>',
+
+			'Header\n\nFoo\n\nBar\n\nAbc\n\nXyz'
+		);
+	} );
+
+	it( 'should output alt attribute of image elements', () => {
+		test(
+			'<container:p>Foo</container:p>' +
+			'<img src="foo.jpg" alt="Alt" />',
+
+			'Foo\n\nAlt'
+		);
+	} );
+
+	it( 'should not put empty line after li (if not needed)', () => {
+		test(
+			'<container:p>Foo</container:p>' +
+			'<container:ul>' +
+				'<container:li>A</container:li>' +
+				'<container:li>B</container:li>' +
+				'<container:li>C</container:li>' +
+			'</container:ul>' +
+			'<container:p>Bar</container:p>',
+
+			'Foo\n\nA\nB\nC\n\nBar'
+		);
+	} );
+
+	it( 'should not put empty line before/after figcaption (if not needed)', () => {
+		test(
+			'<container:p>Foo</container:p>' +
+			'<container:figure>' +
+				'<img src="foo.jpg" alt="Alt" />' +
+				'<container:figcaption>Caption</container:figcaption>' +
+			'</container:figure>' +
+			'<container:p>Bar</container:p>',
+
+			'Foo\n\nAlt\nCaption\n\nBar'
+		);
+	} );
+} );