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 */
017package org.apache.commons.collections.primitives.adapters.io;
018
019import java.io.IOException;
020import java.io.Reader;
021import java.io.StringReader;
022
023import junit.framework.Test;
024import junit.framework.TestSuite;
025
026import org.apache.commons.collections.primitives.CharIterator;
027import org.apache.commons.collections.primitives.TestCharIterator;
028
029/**
030 * @version $Revision: 480451 $ $Date: 2006-11-29 02:45:08 -0500 (Wed, 29 Nov 2006) $
031 * @author Rodney Waldhoff
032 */
033public class TestReaderCharIterator extends TestCharIterator {
034
035    // conventional
036    // ------------------------------------------------------------------------
037
038    public TestReaderCharIterator(String testName) {
039        super(testName);
040    }
041
042    public static Test suite() {
043        return new TestSuite(TestReaderCharIterator.class);
044    }
045
046    // ------------------------------------------------------------------------
047    
048    public boolean supportsRemove() {
049        return false;
050    }
051
052    protected CharIterator makeEmptyCharIterator() {
053        return new ReaderCharIterator(new StringReader(""));
054    }
055
056    protected CharIterator makeFullCharIterator() {
057        return new ReaderCharIterator(new StringReader(new String(getFullElements())));
058    }
059
060    protected char[] getFullElements() {
061        return "The quick brown fox jumped over the lazy dogs.".toCharArray();
062    }
063
064
065    // ------------------------------------------------------------------------
066    
067    public void testErrorThrowingReader() {
068        Reader errReader = new Reader() {
069            public int read(char[] buf, int off, int len) throws IOException {
070                throw new IOException();
071            }
072            
073            public void close() throws IOException {
074            }
075        };
076        
077        CharIterator iter = new ReaderCharIterator(errReader);
078        try {
079            iter.hasNext();
080            fail("Expected RuntimeException");
081        } catch(RuntimeException e) {
082            // expected
083        } 
084        try {
085            iter.next();
086            fail("Expected RuntimeException");
087        } catch(RuntimeException e) {
088            // expected
089        } 
090    }
091    
092    public void testAdaptNull() {
093        assertNull(ReaderCharIterator.adapt(null));
094    }
095
096    public void testAdaptNonNull() {
097        assertNotNull(ReaderCharIterator.adapt(new StringReader("")));
098    }
099}