dm.MWInternalLinkAnnotation: Add some test cases

Change-Id: Ie338d5538959ea2cc296886b623e9dc2cd84fa8f

VisualEditor.hooks.php

@@ -832,6 +832,7 @@ class VisualEditorHooks {
 				'modules/ve-mw/tests/dm/ve.dm.mwExample.js',
 				'modules/ve-mw/tests/dm/ve.dm.Converter.test.js',
 				'modules/ve-mw/tests/dm/ve.dm.MWImageModel.test.js',
+				'modules/ve-mw/tests/dm/ve.dm.MWInternalLinkAnnotation.test.js',
 				// VisualEditor ContentEditable Tests
 				'lib/ve/tests/ce/ve.ce.test.js',
 				'lib/ve/tests/ce/ve.ce.Document.test.js',

modules/ve-mw/tests/dm/ve.dm.MWInternalLinkAnnotation.test.js

@@ -0,0 +1,63 @@
+/*!
+ * VisualEditor DataModel MWInternalLinkAnnotation tests.
+ *
+ * @copyright 2011-2016 VisualEditor Team and others; see http://ve.mit-license.org
+ */
+
+QUnit.module( 've.dm.MWInternalLinkAnnotation' );
+
+QUnit.test( 'toDataElement', function ( assert ) {
+	var i, l,
+		doc = ve.dm.example.createExampleDocument(),
+		internalLink = function ( pageTitle ) {
+			var link = document.createElement( 'a' );
+			link.setAttribute( 'href', location.origin + mw.Title.newFromText( pageTitle ).getUrl() );
+			return link;
+		},
+		cases = [
+			{
+				msg: 'Simple',
+				element: internalLink( 'Foo' ),
+				expected: {
+					type: 'link/mwInternal',
+					attributes: {
+						hrefPrefix: '',
+						lookupTitle: 'Foo',
+						normalizedTitle: 'Foo',
+						origTitle: 'Foo',
+						title: 'Foo'
+					}
+				}
+			},
+			{
+				// Because percent-encoded URLs aren't valid titles, but what they decode to might be
+				msg: 'Percent encoded characters',
+				element: internalLink( 'Foo?' ),
+				expected: {
+					type: 'link/mwInternal',
+					attributes: {
+						hrefPrefix: '',
+						lookupTitle: 'Foo?',
+						normalizedTitle: 'Foo?',
+						origTitle: 'Foo?',
+						title: 'Foo?'
+					}
+				}
+			}
+		],
+		converter = new ve.dm.Converter( ve.dm.modelRegistry, ve.dm.nodeFactory, ve.dm.annotationFactory, ve.dm.metaItemFactory );
+
+	// toDataElement is called during a converter run, so we need to fake up a bit of state to test it.
+	// This would normally be done by ve.dm.converter.getModelFromDom.
+	converter.doc = doc.getHtmlDocument();
+	converter.targetDoc = doc.getHtmlDocument();
+	converter.store = doc.getStore();
+	converter.internalList = doc.getInternalList();
+	converter.contextStack = [];
+
+	QUnit.expect( cases.length );
+
+	for ( i = 0, l = cases.length; i < l; i++ ) {
+		assert.deepEqual( ve.dm.MWInternalLinkAnnotation.static.toDataElement( [ cases[ i ].element ], converter ), cases[ i ].expected, cases[ i ].msg );
+	}
+} );