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Posted to dev@commons.apache.org by sc...@apache.org on 2002/11/22 00:09:26 UTC
cvs commit: jakarta-commons/collections/src/test/org/apache/commons/collections/iterators TestLoopingIterator.java TestAll.java
scolebourne 2002/11/21 15:09:26
Modified: collections/src/test/org/apache/commons/collections/iterators
TestAll.java
Added: collections/src/test/org/apache/commons/collections/iterators
TestLoopingIterator.java
Log:
Add LoopingIterator, from Jonathan Carlson
Revision Changes Path
1.3 +5 -4 jakarta-commons/collections/src/test/org/apache/commons/collections/iterators/TestAll.java
Index: TestAll.java
===================================================================
RCS file: /home/cvs/jakarta-commons/collections/src/test/org/apache/commons/collections/iterators/TestAll.java,v
retrieving revision 1.2
retrieving revision 1.3
diff -u -r1.2 -r1.3
--- TestAll.java 17 Aug 2002 11:39:16 -0000 1.2
+++ TestAll.java 21 Nov 2002 23:09:26 -0000 1.3
@@ -84,6 +84,7 @@
suite.addTest(TestFilterListIterator.suite());
suite.addTest(TestIteratorChain.suite());
suite.addTest(TestListIteratorWrapper.suite());
+ suite.addTest(TestLoopingIterator.suite());
suite.addTest(TestSingletonIterator.suite());
suite.addTest(TestSingletonListIterator.suite());
suite.addTest(TestUniqueFilterIterator.suite());
1.1 jakarta-commons/collections/src/test/org/apache/commons/collections/iterators/TestLoopingIterator.java
Index: TestLoopingIterator.java
===================================================================
/*
* $Header: /home/cvs/jakarta-commons/collections/src/test/org/apache/commons/collections/iterators/TestLoopingIterator.java,v 1.1 2002/11/21 23:09:26 scolebourne Exp $
* $Revision: 1.1 $
* $Date: 2002/11/21 23:09:26 $
*
* ====================================================================
*
* The Apache Software License, Version 1.1
*
* Copyright (c) 1999-2001 The Apache Software Foundation. All rights
* reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
*
* 3. The end-user documentation included with the redistribution, if
* any, must include the following acknowlegement:
* "This product includes software developed by the
* Apache Software Foundation (http://www.apache.org/)."
* Alternately, this acknowlegement may appear in the software itself,
* if and wherever such third-party acknowlegements normally appear.
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* 4. The names "The Jakarta Project", "Commons", and "Apache Software
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*
* 5. Products derived from this software may not be called "Apache"
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*
* THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* DISCLAIMED. IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR
* ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
* USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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*/
package org.apache.commons.collections.iterators;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;
import java.util.NoSuchElementException;
import junit.framework.Test;
import junit.framework.TestCase;
import junit.framework.TestSuite;
/**
* Tests the LoopingIterator class using jUnit.
*
* @author <a href="mailto:joncrlsn@users.sf.net">Jonathan Carlson</a>
* @author Stephen Colebourne
*/
public class TestLoopingIterator extends TestCase {
public TestLoopingIterator(String testName) {
super(testName);
}
public static Test suite() {
return new TestSuite(TestLoopingIterator.class);
}
/**
* Tests constructor exception.
*/
public void testConstructorEx() throws Exception {
try {
new LoopingIterator(null);
fail();
} catch (NullPointerException ex) {
}
}
/**
* Tests whether an empty looping iterator works as designed.
* @throws Exception If something unexpected occurs.
*/
public void testLooping0() throws Exception {
List list = new ArrayList();
LoopingIterator loop = new LoopingIterator(list);
assertTrue("hasNext should return false", loop.hasNext() == false);
try {
loop.next();
fail("NoSuchElementException was not thrown during next() call.");
} catch (NoSuchElementException ex) {
}
}
/**
* Tests whether a populated looping iterator works as designed.
* @throws Exception If something unexpected occurs.
*/
public void testLooping1() throws Exception {
List list = new ArrayList(Arrays.asList(new String[] { "a" }));
LoopingIterator loop = new LoopingIterator(list);
assertTrue("1st hasNext should return true", loop.hasNext());
assertEquals("a", loop.next());
assertTrue("2nd hasNext should return true", loop.hasNext());
assertEquals("a", loop.next());
assertTrue("3rd hasNext should return true", loop.hasNext());
assertEquals("a", loop.next());
}
/**
* Tests whether a populated looping iterator works as designed.
* @throws Exception If something unexpected occurs.
*/
public void testLooping2() throws Exception {
List list = new ArrayList(Arrays.asList(new String[] { "a", "b" }));
LoopingIterator loop = new LoopingIterator(list);
assertTrue("1st hasNext should return true", loop.hasNext());
assertEquals("a", loop.next());
assertTrue("2nd hasNext should return true", loop.hasNext());
assertEquals("b", loop.next());
assertTrue("3rd hasNext should return true", loop.hasNext());
assertEquals("a", loop.next());
}
/**
* Tests whether a populated looping iterator works as designed.
* @throws Exception If something unexpected occurs.
*/
public void testLooping3() throws Exception {
List list = new ArrayList(Arrays.asList(new String[] { "a", "b", "c" }));
LoopingIterator loop = new LoopingIterator(list);
assertTrue("1st hasNext should return true", loop.hasNext());
assertEquals("a", loop.next());
assertTrue("2nd hasNext should return true", loop.hasNext());
assertEquals("b", loop.next());
assertTrue("3rd hasNext should return true", loop.hasNext());
assertEquals("c", loop.next());
assertTrue("4th hasNext should return true", loop.hasNext());
assertEquals("a", loop.next());
}
/**
* Tests the remove() method on a LoopingIterator wrapped ArrayList.
* @throws Exception If something unexpected occurs.
*/
public void testRemoving1() throws Exception {
List list = new ArrayList(Arrays.asList(new String[] { "a", "b", "c" }));
LoopingIterator loop = new LoopingIterator(list);
assertEquals("list should have 3 elements.", 3, list.size());
assertTrue("1st hasNext should return true", loop.hasNext());
assertEquals("a", loop.next());
loop.remove(); // removes a
assertEquals("list should have 2 elements.", 2, list.size());
assertTrue("2nd hasNext should return true", loop.hasNext());
assertEquals("b", loop.next());
loop.remove(); // removes b
assertEquals("list should have 1 elements.", 1, list.size());
assertTrue("3rd hasNext should return true", loop.hasNext());
assertEquals("c", loop.next());
loop.remove(); // removes c
assertEquals("list should have 0 elements.", 0, list.size());
assertTrue("4th hasNext should return false", loop.hasNext() == false);
try {
loop.next();
fail("Expected NoSuchElementException to be thrown.");
} catch (NoSuchElementException ex) {
}
}
/**
* Tests the reset() method on a LoopingIterator wrapped ArrayList.
* @throws Exception If something unexpected occurs.
*/
public void testReset() throws Exception {
List list = new ArrayList(Arrays.asList(new String[] { "a", "b", "c" }));
LoopingIterator loop = new LoopingIterator(list);
assertEquals("a", loop.next());
assertEquals("b", loop.next());
loop.reset();
assertEquals("a", loop.next());
loop.reset();
assertEquals("a", loop.next());
assertEquals("b", loop.next());
assertEquals("c", loop.next());
loop.reset();
assertEquals("a", loop.next());
assertEquals("b", loop.next());
assertEquals("c", loop.next());
}
/**
* Tests the size() method on a LoopingIterator wrapped ArrayList.
* @throws Exception If something unexpected occurs.
*/
public void testSize() throws Exception {
List list = new ArrayList(Arrays.asList(new String[] { "a", "b", "c" }));
LoopingIterator loop = new LoopingIterator(list);
assertEquals(3, loop.size());
loop.next();
loop.next();
assertEquals(3, loop.size());
loop.reset();
assertEquals(3, loop.size());
loop.next();
loop.remove();
assertEquals(2, loop.size());
}
}
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