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/* unmodifiableMap.java -- some checks for the unmodifiableMap() method in the
Collections class.
Copyright (C) 2006 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, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
02110-1301 USA.
*/
// Tags: JDK1.2
package gnu.testlet.java.util.Collections;
import gnu.testlet.TestHarness;
import gnu.testlet.Testlet;
import java.util.Collections;
import java.util.HashMap;
import java.util.Iterator;
import java.util.Map;
public class unmodifiableMap implements Testlet
{
public void test(TestHarness harness)
{
harness.checkPoint("Empty map");
HashMap map = new HashMap();
testMap(map, harness);
harness.checkPoint("Non-empty map");
map.put("A", "AA");
map.put("B", "BB");
map.put("C", "CC");
testMap(map, harness);
harness.checkPoint("Null map");
boolean pass = false;
try
{
Collections.unmodifiableMap(null);
}
catch (NullPointerException e)
{
pass = true;
}
harness.check(pass);
}
private void testMap(Map map, TestHarness harness)
{
Map umap = Collections.unmodifiableMap(map);
// check clear() method
boolean pass = false;
try
{
umap.clear();
}
catch (UnsupportedOperationException e)
{
pass = true;
}
harness.check(pass);
// check put() method
pass = false;
try
{
umap.put("X", "Y");
}
catch (UnsupportedOperationException e)
{
pass = true;
}
harness.check(pass);
// check putAll() method
HashMap map2 = new HashMap();
map2.put("ONE", new Integer(1));
pass = false;
try
{
umap.putAll(map2);
}
catch (UnsupportedOperationException e)
{
pass = true;
}
harness.check(pass);
// check the Map.Entry items from entrySet()
pass = false;
Iterator iterator = umap.entrySet().iterator();
if (iterator.hasNext())
{
Map.Entry entry = (Map.Entry) iterator.next();
try
{
entry.setValue("XYZ");
}
catch (UnsupportedOperationException e)
{
pass = true;
}
harness.check(pass);
}
// check a Map.Entry item from entrySet().toArray()
pass = false;
Object[] entries = umap.entrySet().toArray();
if (entries.length > 0)
{
try
{
((Map.Entry) entries[0]).setValue("XYZ");
}
catch (UnsupportedOperationException e)
{
pass = true;
}
harness.check(pass);
}
// check a Map.Entry item from entrySet().toArray(Object[])
pass = false;
Object[] entries2 = new Object[umap.size()];
umap.entrySet().toArray(entries2);
if (entries2.length > 0)
{
try
{
((Map.Entry) entries2[0]).setValue("XYZ");
}
catch (UnsupportedOperationException e)
{
pass = true;
}
harness.check(pass);
}
}
}
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