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// Tags: JDK1.2
// Copyright (C) 2005 David Gilbert <david.gilbert@object-refinery.com>
// This file is part of Mauve.
// Mauve is free software; you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation; either version 2, or (at your option)
// any later version.
// Mauve is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
// You should have received a copy of the GNU General Public License
// along with Mauve; see the file COPYING. If not, write to
// the Free Software Foundation, 59 Temple Place - Suite 330,
// Boston, MA 02111-1307, USA. */
package gnu.testlet.java.util.Collections;
import gnu.testlet.TestHarness;
import gnu.testlet.Testlet;
import java.util.Collections;
import java.util.List;
/**
* Some checks for the unmodifiableList() method in the Collections class.
*/
public class unmodifiableList implements Testlet
{
/**
* Runs the test using the specified harness.
*
* @param harness the test harness.
*/
public void test(TestHarness harness)
{
// test an empty list
harness.checkPoint("Empty List");
List list1 = new java.util.ArrayList();
testList(list1, harness);
// test a non-empty list
harness.checkPoint("Non-empty List");
List list2 = new java.util.ArrayList();
list2.add("A");
list2.add("B");
list2.add("C");
testList(list2, harness);
// try a null list - the spec says that the argument should be non-null
// but doesn't say what exception will be thrown if it is null (assuming
// NullPointerException)...
harness.checkPoint("Null List");
boolean pass = false;
try
{
Collections.unmodifiableList(null);
}
catch (NullPointerException e)
{
pass = true;
}
harness.check(pass);
}
/**
* Runs the test using the specified harness.
*
* @param list the list to test
* @param harness the test harness.
*/
private void testList(List list, TestHarness harness)
{
List ulist = Collections.unmodifiableList(list);
boolean pass = false;
try
{
ulist.add("X");
}
catch (UnsupportedOperationException e)
{
pass = true;
}
harness.check(pass);
pass = false;
try
{
ulist.add(0, "X");
}
catch (UnsupportedOperationException e)
{
pass = true;
}
harness.check(pass);
List otherList = new java.util.ArrayList();
otherList.add("Z");
pass = false;
try
{
ulist.addAll(otherList);
}
catch (UnsupportedOperationException e)
{
pass = true;
}
harness.check(pass);
pass = false;
try
{
ulist.clear();
}
catch (UnsupportedOperationException e)
{
pass = true;
}
harness.check(pass);
pass = false;
try
{
ulist.remove("X");
}
catch (UnsupportedOperationException e)
{
pass = true;
}
harness.check(pass);
pass = false;
try
{
ulist.remove(0);
}
catch (UnsupportedOperationException e)
{
pass = true;
}
harness.check(pass);
pass = false;
try
{
ulist.removeAll(otherList);
}
catch (UnsupportedOperationException e)
{
pass = true;
}
harness.check(pass);
pass = false;
try
{
ulist.retainAll(otherList);
}
catch (UnsupportedOperationException e)
{
pass = true;
}
harness.check(pass);
pass = false;
try
{
ulist.set(0, "X");
}
catch (UnsupportedOperationException e)
{
pass = true;
}
harness.check(pass);
}
}
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