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/*******************************************************************************
* Copyright (c) 2009 Oracle. All rights reserved.
* This program and the accompanying materials are made available under the
* terms of the Eclipse Public License v1.0, which accompanies this distribution
* and is available at http://www.eclipse.org/legal/epl-v10.html.
*
* Contributors:
* Oracle - initial API and implementation
******************************************************************************/
package org.eclipse.jpt.utility.tests.internal.iterables;
import java.util.List;
import java.util.ListIterator;
import org.eclipse.jpt.utility.internal.CollectionTools;
import org.eclipse.jpt.utility.internal.iterables.SnapshotCloneListIterable;
@SuppressWarnings("nls")
public class SnapshotCloneListIterableTests extends SnapshotCloneIterableTests {
public SnapshotCloneListIterableTests(String name) {
super(name);
}
public void testAdd() {
final List<String> collection = this.buildCollection();
this.iterable = this.buildRemovingIterable(collection);
String added = "xxxx";
assertFalse(CollectionTools.contains(this.iterable, added));
for (ListIterator<String> iterator = (ListIterator<String>) this.iterable.iterator(); iterator.hasNext(); ) {
if (iterator.next().equals("two")) {
iterator.add(added);
}
}
assertTrue(collection.contains(added));
// "snapshot" clone iterable not will contain the element added to the
// original collection
assertFalse(CollectionTools.contains(this.iterable, added));
}
public void testMissingMutatorAdd() {
final List<String> collection = this.buildCollection();
this.iterable = this.buildIterable(collection);
assertNotNull(this.iterable.toString());
String added = "xxxx";
assertFalse(CollectionTools.contains(this.iterable, added));
boolean exCaught = false;
for (ListIterator<String> iterator = (ListIterator<String>) this.iterable.iterator(); iterator.hasNext(); ) {
if (iterator.next().equals("three")) {
try {
iterator.add(added);
fail();
} catch (RuntimeException ex) {
exCaught = true;
}
}
}
assertTrue(exCaught);
}
public void testSet() {
final List<String> collection = this.buildCollection();
this.iterable = this.buildRemovingIterable(collection);
String added = "xxxx";
assertFalse(CollectionTools.contains(this.iterable, added));
assertTrue(CollectionTools.contains(this.iterable, "two"));
for (ListIterator<String> iterator = (ListIterator<String>) this.iterable.iterator(); iterator.hasNext(); ) {
if (iterator.next().equals("two")) {
iterator.set(added);
}
}
assertTrue(collection.contains(added));
assertFalse(collection.contains("two"));
// "snapshot" clone iterable will not be changed
assertFalse(CollectionTools.contains(this.iterable, added));
assertTrue(CollectionTools.contains(this.iterable, "two"));
}
public void testMissingMutatorSet() {
final List<String> collection = this.buildCollection();
this.iterable = this.buildIterable(collection);
assertNotNull(this.iterable.toString());
String added = "xxxx";
assertFalse(CollectionTools.contains(this.iterable, added));
boolean exCaught = false;
for (ListIterator<String> iterator = (ListIterator<String>) this.iterable.iterator(); iterator.hasNext(); ) {
if (iterator.next().equals("three")) {
try {
iterator.set(added);
fail();
} catch (RuntimeException ex) {
exCaught = true;
}
}
}
assertTrue(exCaught);
}
@Override
Iterable<String> buildIterable(List<String> c) {
return new SnapshotCloneListIterable<String>(c);
}
@Override
Iterable<String> buildRemovingIterable(final List<String> c) {
return new SnapshotCloneListIterable<String>(c) {
@Override
protected void add(int index, String element) {
c.add(index, element);
}
@Override
protected void remove(int index) {
c.remove(index);
}
@Override
protected void set(int index, String element) {
c.set(index, element);
}
};
}
@Override
Iterable<String> buildIterableWithRemover(List<String> c) {
return new SnapshotCloneListIterable<String>(c, this.buildMutator(c));
}
}
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