Update to VS Code 1.52.1

lib/vscode/extensions/emmet/src/test/evaluateMathExpression.test.ts

@@ -0,0 +1,52 @@
+/*---------------------------------------------------------------------------------------------
+ *  Copyright (c) Microsoft Corporation. All rights reserved.
+ *  Licensed under the MIT License. See License.txt in the project root for license information.
+ *--------------------------------------------------------------------------------------------*/
+
+import 'mocha';
+import * as assert from 'assert';
+import { Position, Selection } from 'vscode';
+import { withRandomFileEditor, closeAllEditors } from './testUtils';
+import { evaluateMathExpression } from '../evaluateMathExpression';
+
+suite('Tests for Evaluate Math Expression', () => {
+	teardown(closeAllEditors);
+
+	function testEvaluateMathExpression(fileContents: string, selection: [number, number] | number, expectedFileContents: string): Thenable<boolean> {
+		return withRandomFileEditor(fileContents, 'html', async (editor, _doc) => {
+			const selectionToUse = typeof selection === 'number' ?
+				new Selection(new Position(0, selection), new Position(0, selection)) :
+				new Selection(new Position(0, selection[0]), new Position(0, selection[1]));
+			editor.selection = selectionToUse;
+
+			await evaluateMathExpression();
+
+			assert.strictEqual(editor.document.getText(), expectedFileContents);
+			return Promise.resolve();
+		});
+	}
+
+	test('Selected sanity check', () => {
+		return testEvaluateMathExpression('1 + 2', [0, 5], '3');
+	});
+
+	test('Selected with surrounding text', () => {
+		return testEvaluateMathExpression('test1 + 2test', [4, 9], 'test3test');
+	});
+
+	test('Selected with number not part of selection', () => {
+		return testEvaluateMathExpression('test3 1+2', [6, 9], 'test3 3');
+	});
+
+	test('Non-selected sanity check', () => {
+		return testEvaluateMathExpression('1 + 2', 5, '3');
+	});
+
+	test('Non-selected midway', () => {
+		return testEvaluateMathExpression('1 + 2', 1, '1 + 2');
+	});
+
+	test('Non-selected with surrounding text', () => {
+		return testEvaluateMathExpression('test1 + 3test', 9, 'test4test');
+	});
+});