[html] split extension (for #45900)

extensions/html-language-features/server/src/test/documentContext.test.ts

@@ -0,0 +1,22 @@
+/*---------------------------------------------------------------------------------------------
+ *  Copyright (c) Microsoft Corporation. All rights reserved.
+ *  Licensed under the MIT License. See License.txt in the project root for license information.
+ *--------------------------------------------------------------------------------------------*/
+'use strict';
+
+import * as assert from 'assert';
+import { getDocumentContext } from '../utils/documentContext';
+
+suite('Document Context', () => {
+
+	test('Context', function (): any {
+		const docURI = 'file:///users/test/folder/test.html';
+		const rootFolders = [{ name: '', uri: 'file:///users/test/' }];
+
+		let context = getDocumentContext(docURI, rootFolders);
+		assert.equal(context.resolveReference('/', docURI), 'file:///users/test/');
+		assert.equal(context.resolveReference('/message.html', docURI), 'file:///users/test/message.html');
+		assert.equal(context.resolveReference('message.html', docURI), 'file:///users/test/folder/message.html');
+		assert.equal(context.resolveReference('message.html', 'file:///users/test/'), 'file:///users/test/message.html');
+	});
+});