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/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You 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 org.apache.commons.io;
import static org.junit.jupiter.api.Assertions.assertEquals;
import java.nio.charset.Charset;
import java.nio.charset.StandardCharsets;
import java.util.Set;
import java.util.SortedMap;
import org.junit.jupiter.api.Test;
/**
* Tests {@link Charsets}.
*/
@SuppressWarnings("deprecation") // testing deprecated code
public class CharsetsTest {
/**
* For parameterized tests.
*/
public static final String AVAIL_CHARSETS = "org.apache.commons.io.CharsetsTest#availableCharsetsKeySet";
/**
* For parameterized tests.
*
* @return {@code Charset.availableCharsets().keySet()}.
*/
public static Set<String> availableCharsetsKeySet() {
return Charset.availableCharsets().keySet();
}
@Test
public void testIso8859_1() {
assertEquals("ISO-8859-1", Charsets.ISO_8859_1.name());
}
@Test
public void testRequiredCharsets() {
final SortedMap<String, Charset> requiredCharsets = Charsets.requiredCharsets();
// test for what we expect to be there as of Java 6
// Make sure the object at the given key is the right one
assertEquals(requiredCharsets.get("US-ASCII").name(), "US-ASCII");
assertEquals(requiredCharsets.get("ISO-8859-1").name(), "ISO-8859-1");
assertEquals(requiredCharsets.get("UTF-8").name(), "UTF-8");
assertEquals(requiredCharsets.get("UTF-16").name(), "UTF-16");
assertEquals(requiredCharsets.get("UTF-16BE").name(), "UTF-16BE");
assertEquals(requiredCharsets.get("UTF-16LE").name(), "UTF-16LE");
}
@Test
public void testToCharset_String() {
assertEquals(Charset.defaultCharset(), Charsets.toCharset((String) null));
assertEquals(Charset.defaultCharset(), Charsets.toCharset((Charset) null));
assertEquals(Charset.defaultCharset(), Charsets.toCharset(Charset.defaultCharset()));
assertEquals(StandardCharsets.UTF_8, Charsets.toCharset(StandardCharsets.UTF_8));
}
@Test
public void testToCharset_String_Charset() {
assertEquals(null, Charsets.toCharset((String) null, null));
assertEquals(Charset.defaultCharset(), Charsets.toCharset((String) null, Charset.defaultCharset()));
assertEquals(Charset.defaultCharset(), Charsets.toCharset((Charset) null, Charset.defaultCharset()));
assertEquals(null, Charsets.toCharset((Charset) null, null));
assertEquals(Charset.defaultCharset(), Charsets.toCharset(Charset.defaultCharset(), Charset.defaultCharset()));
assertEquals(StandardCharsets.UTF_8, Charsets.toCharset(StandardCharsets.UTF_8, Charset.defaultCharset()));
assertEquals(StandardCharsets.UTF_8, Charsets.toCharset(StandardCharsets.UTF_8, null));
}
@Test
public void testUsAscii() {
assertEquals("US-ASCII", Charsets.US_ASCII.name());
}
@Test
public void testUtf16() {
assertEquals("UTF-16", Charsets.UTF_16.name());
}
@Test
public void testUtf16Be() {
assertEquals("UTF-16BE", Charsets.UTF_16BE.name());
}
@Test
public void testUtf16Le() {
assertEquals("UTF-16LE", Charsets.UTF_16LE.name());
}
@Test
public void testUtf8() {
assertEquals("UTF-8", Charsets.UTF_8.name());
}
}
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