| /* |
| * Copyright 2009 Google Inc. |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); you may not |
| * use this file except in compliance with the License. You may obtain a copy of |
| * the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT |
| * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the |
| * License for the specific language governing permissions and limitations under |
| * the License. |
| */ |
| package com.google.gwt.user.server; |
| |
| import junit.framework.TestCase; |
| |
| /** |
| * Tests for the {@link com.google.gwt.user.server.Base64Utils Base64Utils} class. |
| */ |
| public class Base64Test extends TestCase { |
| |
| /** |
| * Tests that base 64 encoding/decoding round trips are lossless. |
| */ |
| public static void testBase64Utils() { |
| base64RoundTrip((byte[]) null); |
| base64RoundTrip(new byte[0]); |
| |
| java.util.Random r = new java.util.Random(100); |
| for (int i = 0; i < 10000; i++) { |
| base64RoundTrip(r); |
| } |
| } |
| |
| private static void base64RoundTrip(java.util.Random r) { |
| int len = r.nextInt(10); |
| byte[] b1 = new byte[len]; |
| r.nextBytes(b1); |
| |
| base64RoundTrip(b1); |
| } |
| |
| private static void base64RoundTrip(byte[] b1) { |
| String s = Base64Utils.toBase64(b1); |
| if (b1 == null) { |
| assert s == null; |
| } else { |
| assert s != null; |
| if (b1.length == 0) { |
| assert s.length() == 0; |
| } else { |
| assert s.length() != 0; |
| } |
| } |
| |
| byte[] b2 = Base64Utils.fromBase64(s); |
| if (b1 == null) { |
| assert b2 == null; |
| return; |
| } |
| assert b2 != null; |
| assert (b1.length == b2.length); |
| |
| for (int i = 0; i < b1.length; i++) { |
| assert b1[i] == b2[i]; |
| } |
| } |
| } |