/*
* 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.tika.utils;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertFalse;
import static org.junit.Assert.assertTrue;
import org.junit.Test;
public class CharsetUtilsTest {
@Test
public void testInvalidCharset() {
assertFalse(CharsetUtils.isSupported(" utf-8"));
assertFalse(CharsetUtils.isSupported("my charset name"));
assertFalse(CharsetUtils.isSupported("charset1; charset2"));
assertFalse(CharsetUtils.isSupported(null));
assertFalse(CharsetUtils.isSupported(""));
}
@Test
public void testValidCharset() {
assertTrue(CharsetUtils.isSupported("UTF-8"));
assertFalse(CharsetUtils.isSupported("bogus"));
}
@Test
public void testCleaningCharsetName() {
assertEquals("UTF-8", CharsetUtils.clean("utf-8"));
assertEquals(null, CharsetUtils.clean(""));
assertEquals(null, CharsetUtils.clean(null));
assertEquals("US-ASCII", CharsetUtils.clean(" us-ascii "));
assertEquals("UTF-8", CharsetUtils.clean("\"utf-8\""));
assertEquals("ISO-8859-1", CharsetUtils.clean("ISO-8859-1, latin1"));
}
@Test
public void testFunkyNames() {
assertEquals(null, CharsetUtils.clean("none"));
assertEquals(null, CharsetUtils.clean("no"));
assertEquals("UTF-8", CharsetUtils.clean("utf-8>"));
assertEquals("ISO-8859-1", CharsetUtils.clean("iso-8851-1"));
assertEquals("ISO-8859-15", CharsetUtils.clean("8859-15"));
assertEquals("windows-1251", CharsetUtils.clean("cp-1251"));
assertEquals("windows-1251", CharsetUtils.clean("win1251"));
assertEquals("windows-1251", CharsetUtils.clean("WIN-1251"));
assertEquals("windows-1251", CharsetUtils.clean("win-1251"));
assertEquals("windows-1252", CharsetUtils.clean("Windows"));
assertEquals("KOI8-R", CharsetUtils.clean("koi8r"));
}
}