| /* |
| * Copyright (C) 2007 The Guava Authors |
| * |
| * 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.common.base; |
| |
| import com.google.common.annotations.GwtCompatible; |
| import com.google.common.annotations.GwtIncompatible; |
| import java.nio.charset.Charset; |
| import java.util.Arrays; |
| import junit.framework.TestCase; |
| |
| /** |
| * Unit test for {@link Charsets}. |
| * |
| * @author Mike Bostock |
| */ |
| @GwtCompatible(emulated = true) |
| public class CharsetsTest extends TestCase { |
| |
| @GwtIncompatible // Non-UTF-8 Charset |
| public void testUsAscii() { |
| assertEquals(Charset.forName("US-ASCII"), Charsets.US_ASCII); |
| } |
| |
| @GwtIncompatible // Non-UTF-8 Charset |
| public void testIso88591() { |
| assertEquals(Charset.forName("ISO-8859-1"), Charsets.ISO_8859_1); |
| } |
| |
| public void testUtf8() { |
| assertEquals(Charset.forName("UTF-8"), Charsets.UTF_8); |
| } |
| |
| @GwtIncompatible // Non-UTF-8 Charset |
| public void testUtf16be() { |
| assertEquals(Charset.forName("UTF-16BE"), Charsets.UTF_16BE); |
| } |
| |
| @GwtIncompatible // Non-UTF-8 Charset |
| public void testUtf16le() { |
| assertEquals(Charset.forName("UTF-16LE"), Charsets.UTF_16LE); |
| } |
| |
| @GwtIncompatible // Non-UTF-8 Charset |
| public void testUtf16() { |
| assertEquals(Charset.forName("UTF-16"), Charsets.UTF_16); |
| } |
| |
| @GwtIncompatible // Non-UTF-8 Charset |
| public void testWhyUsAsciiIsDangerous() { |
| byte[] b1 = "朝日新聞".getBytes(Charsets.US_ASCII); |
| byte[] b2 = "聞朝日新".getBytes(Charsets.US_ASCII); |
| byte[] b3 = "????".getBytes(Charsets.US_ASCII); |
| byte[] b4 = "ニュース".getBytes(Charsets.US_ASCII); |
| byte[] b5 = "スューー".getBytes(Charsets.US_ASCII); |
| // Assert they are all equal (using the transitive property) |
| assertTrue(Arrays.equals(b1, b2)); |
| assertTrue(Arrays.equals(b2, b3)); |
| assertTrue(Arrays.equals(b3, b4)); |
| assertTrue(Arrays.equals(b4, b5)); |
| } |
| } |