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Added test cases for new methods in ListUtils 

#retainAll(Collection, Collection)
#removeAll(Collection, Collection)
#unmodifiableListCopy(Collection)


git-svn-id: https://svn.apache.org/repos/asf/jakarta/commons/proper/collections/trunk@131825 13f79535-47bb-0310-9956-ffa450edef68
This commit is contained in:
Neil O'Toole 2004-12-11 06:24:10 +00:00
parent dde27ccfcb
commit f9188963a8
1 changed files with 92 additions and 3 deletions
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95
src/test/org/apache/commons/collections/TestListUtils.java
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@ -27,7 +27,7 @@ import org.apache.commons.collections.list.PredicatedList;
/**
* Tests for ListUtils.
*
* @version $Revision: 1.19 $ $Date: 2004/06/02 22:12:14 $
* @version $Revision: 1.20 $ $Date: 2004/12/11 06:24:10 $
*
* @author Stephen Colebourne
* @author Neil O'Toole
@ -35,7 +35,17 @@ import org.apache.commons.collections.list.PredicatedList;
*/
public class TestListUtils extends BulkTest {
public TestListUtils(String name) {
private static final String a = "a";
private static final String b = "b";
private static final String c = "c";
private static final String d = "d";
private static final String e = "e";
private static final String x = "x";
private String[] fullArray;
private List fullList;
public TestListUtils(String name) {
super(name);
}
@ -43,6 +53,12 @@ public class TestListUtils extends BulkTest {
return BulkTest.makeSuite(TestListUtils.class);
}
public void setUp() {
fullArray = new String[]{a, b, c, d, e};
fullList = new ArrayList(Arrays.asList(fullArray));
}
public void testNothing() {
}
@ -118,6 +134,79 @@ public class TestListUtils extends BulkTest {
a.clear();
assertEquals(false, ListUtils.hashCodeForList(a) == ListUtils.hashCodeForList(b));
assertEquals(0, ListUtils.hashCodeForList(null));
}
}
public void testUnmodifiableListCopy() {
List list = new ArrayList();
list.add("a");
List copy = ListUtils.unmodifiableListCopy(list);
assertTrue(copy instanceof Unmodifiable);
assertTrue(list.equals(copy));
list.clear();
assertTrue(copy.isEmpty() == false);
try
{
copy.clear();
fail("should be unmodifiable.");
}
catch (UnsupportedOperationException uoe)
{
// this is what we want
}
try
{
list = ListUtils.unmodifiableListCopy(null);
fail("expecting IllegalArgumentException");
}
catch (IllegalArgumentException iae)
{
// this is what we want
}
}
public void testRetainAll() {
List sub = new ArrayList();
sub.add(a);
sub.add(b);
sub.add(x);
List retained = ListUtils.retainAll(fullList, sub);
assertTrue(retained.size() == 2);
sub.remove(x);
assertTrue(retained.equals(sub));
fullList.retainAll(sub);
assertTrue(retained.equals(fullList));
try
{
List list = ListUtils.retainAll(null, null);
fail("expecting NullPointerException");
}
catch(NullPointerException npe)
{} // this is what we want
}
public void testRemoveAll() {
List sub = new ArrayList();
sub.add(a);
sub.add(b);
sub.add(x);
List remainder = ListUtils.removeAll(fullList, sub);
assertTrue(remainder.size() == 3);
fullList.removeAll(sub);
assertTrue(remainder.equals(fullList));
try
{
List list = ListUtils.removeAll(null, null);
fail("expecting NullPointerException");
}
catch(NullPointerException npe)
{} // this is what we want
}
}