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/*******************************************************************************
* Copyright (c) 2015 Oracle. All rights reserved.
* This program and the accompanying materials are made available under the
* terms of the Eclipse Public License 2.0, which accompanies this distribution
* and is available at https://www.eclipse.org/legal/epl-2.0/.
*
* Contributors:
* Oracle - initial API and implementation
******************************************************************************/
package org.eclipse.jpt.common.utility.tests.internal.collection;
import java.util.ArrayList;
import java.util.Collection;
import java.util.List;
import java.util.ListIterator;
import org.eclipse.jpt.common.utility.internal.ObjectTools;
import org.eclipse.jpt.common.utility.internal.collection.NullList;
import org.eclipse.jpt.common.utility.internal.iterator.IteratorTools;
import org.eclipse.jpt.common.utility.tests.internal.TestTools;
import junit.framework.TestCase;
@SuppressWarnings("nls")
public class NullListTests
extends TestCase
{
public NullListTests(String name) {
super(name);
}
public void testAddObject() {
List<String> list = NullList.<String>instance();
assertFalse(list.add("foo"));
assertTrue(list.isEmpty());
}
public void testAddIntObject() {
List<String> list = NullList.<String>instance();
list.add(0, "foo");
assertTrue(list.isEmpty());
}
public void testAddAllCollection() {
List<String> list = NullList.<String>instance();
Collection<String> collection = new ArrayList<String>();
collection.add("foo");
collection.add("bar");
assertFalse(list.addAll(collection));
assertTrue(list.isEmpty());
}
public void testAddAllIntCollection() {
List<String> list = NullList.<String>instance();
Collection<String> collection = new ArrayList<String>();
collection.add("foo");
collection.add("bar");
assertFalse(list.addAll(0, collection));
assertTrue(list.isEmpty());
}
public void testClear() {
List<String> list = NullList.<String>instance();
list.clear();
assertTrue(list.isEmpty());
}
public void testContainsObject() {
List<String> list = NullList.<String>instance();
Collection<String> collection = new ArrayList<String>();
collection.add("foo");
collection.add("bar");
assertFalse(list.addAll(collection));
assertFalse(list.contains("foo"));
assertFalse(list.contains("bar"));
assertFalse(list.contains("XXX"));
}
public void testContainsAllCollection() {
List<String> list = NullList.<String>instance();
Collection<String> collection = new ArrayList<String>();
collection.add("foo");
collection.add("bar");
assertFalse(list.addAll(collection));
assertFalse(list.containsAll(collection));
collection.clear();
assertTrue(list.containsAll(collection));
}
public void testGetInt() {
List<String> list = NullList.<String>instance();
boolean exCaught = false;
try {
list.get(0);
fail();
} catch (IndexOutOfBoundsException ex) {
exCaught = true;
}
assertTrue(exCaught);
}
public void testIndexOfObject() {
List<String> list = NullList.<String>instance();
assertEquals(-1, list.indexOf("foo"));
}
public void testIsEmpty() {
List<String> list = NullList.<String>instance();
assertTrue(list.isEmpty());
}
public void testIterator() {
List<String> list = NullList.<String>instance();
assertTrue(IteratorTools.isEmpty(list.iterator()));
}
public void testLastIndexOfObject() {
List<String> list = NullList.<String>instance();
assertEquals(-1, list.lastIndexOf("foo"));
}
public void testListIterator() {
List<String> list = NullList.<String>instance();
assertTrue(IteratorTools.isEmpty(list.listIterator()));
}
public void testListIteratorInt() {
List<String> list = NullList.<String>instance();
ListIterator<String> iterator = list.listIterator(0);
assertTrue(IteratorTools.isEmpty(iterator));
boolean exCaught = false;
try {
iterator = list.listIterator(1);
fail("bogus list iterator: " + iterator);
} catch (IndexOutOfBoundsException ex) {
exCaught = true;
}
assertTrue(exCaught);
}
public void testRemoveObject() {
List<String> list = NullList.<String>instance();
assertFalse(list.remove("foo"));
assertTrue(list.isEmpty());
}
public void testRemoveInt() {
List<String> list = NullList.<String>instance();
boolean exCaught = false;
try {
String object = list.remove(0);
fail("bogus element: " + object);
} catch (IndexOutOfBoundsException ex) {
exCaught = true;
}
assertTrue(exCaught);
assertTrue(list.isEmpty());
}
public void testRemoveAllCollection() {
List<String> list = NullList.<String>instance();
Collection<String> collection = new ArrayList<String>();
collection.add("foo");
collection.add("bar");
assertFalse(list.removeAll(collection));
assertTrue(list.isEmpty());
}
public void testRetainAllCollection() {
List<String> list = NullList.<String>instance();
Collection<String> collection = new ArrayList<String>();
collection.add("foo");
collection.add("bar");
assertFalse(list.retainAll(collection));
assertTrue(list.isEmpty());
}
public void testSetIntObject() {
List<String> list = NullList.<String>instance();
boolean exCaught = false;
try {
String element = list.set(0, "foo");
fail("bogus set: " + element);
} catch (IndexOutOfBoundsException ex) {
exCaught = true;
}
assertTrue(exCaught);
}
public void testSize() {
List<String> list = NullList.<String>instance();
assertEquals(0, list.size());
}
public void testSubList() {
List<String> list = NullList.<String>instance();
List<String> subList = list.subList(0, 0);
assertTrue(subList.isEmpty());
boolean exCaught = false;
try {
subList = list.subList(0, 3);
fail("bogus sub list: " + subList);
} catch (IndexOutOfBoundsException ex) {
exCaught = true;
}
assertTrue(exCaught);
exCaught = false;
try {
subList = list.subList(3, 0);
fail("bogus sub list: " + subList);
} catch (IndexOutOfBoundsException ex) {
exCaught = true;
}
assertTrue(exCaught);
exCaught = false;
try {
subList = list.subList(3, 3);
fail("bogus sub list: " + subList);
} catch (IndexOutOfBoundsException ex) {
exCaught = true;
}
assertTrue(exCaught);
subList = list.subList(0, 0);
assertTrue(subList.isEmpty());
}
public void testToArray() {
List<String> list = NullList.<String>instance();
assertEquals(0, list.toArray().length);
}
public void testToArrayObjectArray() {
List<String> list = NullList.<String>instance();
assertEquals(0, list.toArray(ObjectTools.EMPTY_OBJECT_ARRAY).length);
}
public void testSerialization() throws Exception {
List<String> list = NullList.<String>instance();
assertSame(list, TestTools.serialize(list));
}
public void testToString() {
List<String> list = NullList.<String>instance();
assertEquals("[]", list.toString());
}
}
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