Update to VS Code 1.52.1

lib/vscode/src/vs/base/test/browser/hash.test.ts

@@ -0,0 +1,104 @@
+/*---------------------------------------------------------------------------------------------
+ *  Copyright (c) Microsoft Corporation. All rights reserved.
+ *  Licensed under the MIT License. See License.txt in the project root for license information.
+ *--------------------------------------------------------------------------------------------*/
+
+import * as assert from 'assert';
+import { hash, StringSHA1 } from 'vs/base/common/hash';
+import { sha1Hex } from 'vs/base/browser/hash';
+
+suite('Hash', () => {
+	test('string', () => {
+		assert.equal(hash('hello'), hash('hello'));
+		assert.notEqual(hash('hello'), hash('world'));
+		assert.notEqual(hash('hello'), hash('olleh'));
+		assert.notEqual(hash('hello'), hash('Hello'));
+		assert.notEqual(hash('hello'), hash('Hello '));
+		assert.notEqual(hash('h'), hash('H'));
+		assert.notEqual(hash('-'), hash('_'));
+	});
+
+	test('number', () => {
+		assert.equal(hash(1), hash(1));
+		assert.notEqual(hash(0), hash(1));
+		assert.notEqual(hash(1), hash(-1));
+		assert.notEqual(hash(0x12345678), hash(0x123456789));
+	});
+
+	test('boolean', () => {
+		assert.equal(hash(true), hash(true));
+		assert.notEqual(hash(true), hash(false));
+	});
+
+	test('array', () => {
+		assert.equal(hash([1, 2, 3]), hash([1, 2, 3]));
+		assert.equal(hash(['foo', 'bar']), hash(['foo', 'bar']));
+		assert.equal(hash([]), hash([]));
+		assert.equal(hash([]), hash(new Array()));
+		assert.notEqual(hash(['foo', 'bar']), hash(['bar', 'foo']));
+		assert.notEqual(hash(['foo', 'bar']), hash(['bar', 'foo', null]));
+		assert.notEqual(hash(['foo', 'bar', null]), hash(['bar', 'foo', null]));
+		assert.notEqual(hash(['foo', 'bar']), hash(['bar', 'foo', undefined]));
+		assert.notEqual(hash(['foo', 'bar', undefined]), hash(['bar', 'foo', undefined]));
+		assert.notEqual(hash(['foo', 'bar', null]), hash(['foo', 'bar', undefined]));
+	});
+
+	test('object', () => {
+		assert.equal(hash({}), hash({}));
+		assert.equal(hash({}), hash(Object.create(null)));
+		assert.equal(hash({ 'foo': 'bar' }), hash({ 'foo': 'bar' }));
+		assert.equal(hash({ 'foo': 'bar', 'foo2': undefined }), hash({ 'foo2': undefined, 'foo': 'bar' }));
+		assert.notEqual(hash({ 'foo': 'bar' }), hash({ 'foo': 'bar2' }));
+		assert.notEqual(hash({}), hash([]));
+	});
+
+	test('array - unexpected collision', function () {
+		const a = hash([undefined, undefined, undefined, undefined, undefined]);
+		const b = hash([undefined, undefined, 'HHHHHH', [{ line: 0, character: 0 }, { line: 0, character: 0 }], undefined]);
+		assert.notEqual(a, b);
+	});
+
+	test('all different', () => {
+		const candidates: any[] = [
+			null, undefined, {}, [], 0, false, true, '', ' ', [null], [undefined], [undefined, undefined], { '': undefined }, { [' ']: undefined },
+			'ab', 'ba', ['ab']
+		];
+		const hashes: number[] = candidates.map(hash);
+		for (let i = 0; i < hashes.length; i++) {
+			assert.equal(hashes[i], hash(candidates[i])); // verify that repeated invocation returns the same hash
+			for (let k = i + 1; k < hashes.length; k++) {
+				assert.notEqual(hashes[i], hashes[k], `Same hash ${hashes[i]} for ${JSON.stringify(candidates[i])} and ${JSON.stringify(candidates[k])}`);
+			}
+		}
+	});
+
+
+	async function checkSHA1(str: string, expected: string) {
+
+		// Test with StringSHA1
+		const hash = new StringSHA1();
+		hash.update(str);
+		let actual = hash.digest();
+		assert.equal(actual, expected);
+
+		// Test with crypto.subtle
+		actual = await sha1Hex(str);
+		assert.equal(actual, expected);
+	}
+
+	test('sha1-1', () => {
+		return checkSHA1('\udd56', '9bdb77276c1852e1fb067820472812fcf6084024');
+	});
+
+	test('sha1-2', () => {
+		return checkSHA1('\udb52', '9bdb77276c1852e1fb067820472812fcf6084024');
+	});
+
+	test('sha1-3', () => {
+		return checkSHA1('\uda02ꑍ', '9b483a471f22fe7e09d83f221871a987244bbd3f');
+	});
+
+	test('sha1-4', () => {
+		return checkSHA1('hello', 'aaf4c61ddcc5e8a2dabede0f3b482cd9aea9434d');
+	});
+});