001    /*
002     * Licensed to the Apache Software Foundation (ASF) under one or more
003     * contributor license agreements.  See the NOTICE file distributed with
004     * this work for additional information regarding copyright ownership.
005     * The ASF licenses this file to You under the Apache License, Version 2.0
006     * (the "License"); you may not use this file except in compliance with
007     * the License.  You may obtain a copy of the License at
008     *
009     *      http://www.apache.org/licenses/LICENSE-2.0
010     *
011     * Unless required by applicable law or agreed to in writing, software
012     * distributed under the License is distributed on an "AS IS" BASIS,
013     * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
014     * See the License for the specific language governing permissions and
015     * limitations under the License.
016     */
017    
018    package org.apache.commons.codec;
019    
020    import static org.junit.Assert.assertEquals;
021    import static org.junit.Assert.assertNull;
022    
023    import org.junit.Test;
024    
025    /**
026     * Tests {@link DecoderException}.
027     *
028     * @version $Id: DecoderExceptionTest.html 889935 2013-12-11 05:05:13Z ggregory $
029     */
030    public class DecoderExceptionTest {
031    
032        private static final String MSG = "TEST";
033    
034        private static final Throwable t = new Exception();
035    
036        @Test
037        public void testConstructor0() {
038            DecoderException e = new DecoderException();
039            assertNull(e.getMessage());
040            assertNull(e.getCause());
041        }
042    
043        @Test
044        public void testConstructorString() {
045            DecoderException e = new DecoderException(MSG);
046            assertEquals(MSG, e.getMessage());
047            assertNull(e.getCause());
048        }
049    
050        @Test
051        public void testConstructorStringThrowable() {
052            DecoderException e = new DecoderException(MSG, t);
053            assertEquals(MSG, e.getMessage());
054            assertEquals(t, e.getCause());
055        }
056    
057        @Test
058        public void testConstructorThrowable() {
059            DecoderException e = new DecoderException(t);
060            assertEquals(t.getClass().getName(), e.getMessage());
061            assertEquals(t, e.getCause());
062        }
063    
064    }