76 lines
2.3 KiB
Java
76 lines
2.3 KiB
Java
/*
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* Copyright (C) 2007 The Guava Authors
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package com.google.common.base;
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import com.google.common.annotations.GwtCompatible;
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import com.google.common.annotations.GwtIncompatible;
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import java.nio.charset.Charset;
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import java.util.Arrays;
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import junit.framework.TestCase;
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/**
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* Unit test for {@link Charsets}.
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*
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* @author Mike Bostock
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*/
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@GwtCompatible(emulated = true)
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public class CharsetsTest extends TestCase {
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@GwtIncompatible // Non-UTF-8 Charset
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public void testUsAscii() {
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assertEquals(Charset.forName("US-ASCII"), Charsets.US_ASCII);
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}
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@GwtIncompatible // Non-UTF-8 Charset
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public void testIso88591() {
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assertEquals(Charset.forName("ISO-8859-1"), Charsets.ISO_8859_1);
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}
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public void testUtf8() {
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assertEquals(Charset.forName("UTF-8"), Charsets.UTF_8);
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}
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@GwtIncompatible // Non-UTF-8 Charset
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public void testUtf16be() {
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assertEquals(Charset.forName("UTF-16BE"), Charsets.UTF_16BE);
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}
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@GwtIncompatible // Non-UTF-8 Charset
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public void testUtf16le() {
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assertEquals(Charset.forName("UTF-16LE"), Charsets.UTF_16LE);
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}
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@GwtIncompatible // Non-UTF-8 Charset
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public void testUtf16() {
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assertEquals(Charset.forName("UTF-16"), Charsets.UTF_16);
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}
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@GwtIncompatible // Non-UTF-8 Charset
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public void testWhyUsAsciiIsDangerous() {
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byte[] b1 = "朝日新聞".getBytes(Charsets.US_ASCII);
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byte[] b2 = "聞朝日新".getBytes(Charsets.US_ASCII);
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byte[] b3 = "????".getBytes(Charsets.US_ASCII);
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byte[] b4 = "ニュース".getBytes(Charsets.US_ASCII);
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byte[] b5 = "スューー".getBytes(Charsets.US_ASCII);
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// Assert they are all equal (using the transitive property)
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assertTrue(Arrays.equals(b1, b2));
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assertTrue(Arrays.equals(b2, b3));
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assertTrue(Arrays.equals(b3, b4));
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assertTrue(Arrays.equals(b4, b5));
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}
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}
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