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Diffstat (limited to 'jpa/tests/org.eclipse.jpt.utility.tests/src/org/eclipse/jpt/utility/tests/internal/iterators/CloneListIteratorTests.java')
-rw-r--r--jpa/tests/org.eclipse.jpt.utility.tests/src/org/eclipse/jpt/utility/tests/internal/iterators/CloneListIteratorTests.java408
1 files changed, 0 insertions, 408 deletions
diff --git a/jpa/tests/org.eclipse.jpt.utility.tests/src/org/eclipse/jpt/utility/tests/internal/iterators/CloneListIteratorTests.java b/jpa/tests/org.eclipse.jpt.utility.tests/src/org/eclipse/jpt/utility/tests/internal/iterators/CloneListIteratorTests.java
deleted file mode 100644
index c6045a9f12..0000000000
--- a/jpa/tests/org.eclipse.jpt.utility.tests/src/org/eclipse/jpt/utility/tests/internal/iterators/CloneListIteratorTests.java
+++ /dev/null
@@ -1,408 +0,0 @@
-/*******************************************************************************
- * Copyright (c) 2005, 2007 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.iterators;
-
-import java.util.ArrayList;
-import java.util.Collections;
-import java.util.List;
-import java.util.ListIterator;
-import java.util.NoSuchElementException;
-import junit.framework.TestCase;
-import org.eclipse.jpt.utility.internal.iterators.CloneListIterator;
-import org.eclipse.jpt.utility.tests.internal.TestTools;
-
-public class CloneListIteratorTests extends TestCase {
- List<String> originalList;
-
- private boolean concurrentProblem;
- private List<String> concurrentList;
-
- public CloneListIteratorTests(String name) {
- super(name);
- }
-
- @Override
- protected void setUp() throws Exception {
- super.setUp();
- this.originalList = this.buildList();
- }
-
- @Override
- protected void tearDown() throws Exception {
- TestTools.clear(this);
- super.tearDown();
- }
-
- public void testHasNext() {
- int originalSize = this.originalList.size();
- int i = 0;
- for (ListIterator<String> stream = this.buildCloneListIterator(); stream.hasNext();) {
- stream.next();
- // should allow concurrent modification
- this.originalList.add("foo");
- i++;
- }
- assertTrue(originalSize != this.originalList.size());
- assertEquals(originalSize, i);
- }
-
- public void testNext() {
- ListIterator<String> nestedListIterator = this.buildNestedListIterator();
- for (ListIterator<String> stream = this.buildCloneListIterator(); stream.hasNext();) {
- assertEquals("bogus element", nestedListIterator.next(), stream.next());
- }
- }
-
- public void testIndex() {
- ListIterator<String> cloneListIterator = this.buildCloneListIterator();
- ListIterator<String> nestedListIterator = this.buildNestedListIterator();
- for (int i = 0; i < 7; i++) {
- nestedListIterator.next();
- cloneListIterator.next();
- assertEquals("bogus index", nestedListIterator.nextIndex(), cloneListIterator.nextIndex());
- assertEquals("bogus index", nestedListIterator.previousIndex(), cloneListIterator.previousIndex());
- }
-
- for (int i = 0; i < 3; i++) {
- nestedListIterator.previous();
- cloneListIterator.previous();
- assertEquals("bogus index", nestedListIterator.nextIndex(), cloneListIterator.nextIndex());
- assertEquals("bogus index", nestedListIterator.previousIndex(), cloneListIterator.previousIndex());
- }
-
- while (nestedListIterator.hasNext()) {
- nestedListIterator.next();
- cloneListIterator.next();
- assertEquals("bogus index", nestedListIterator.nextIndex(), cloneListIterator.nextIndex());
- assertEquals("bogus index", nestedListIterator.previousIndex(), cloneListIterator.previousIndex());
- }
- }
-
- public void testHasPrevious() {
- int originalSize = this.originalList.size();
- int i = 0;
- ListIterator<String> stream = this.buildCloneListIterator();
- while (stream.hasNext()) {
- stream.next();
- this.originalList.add("foo");
- i++;
- }
- assertTrue(originalSize != this.originalList.size());
- originalSize = this.originalList.size();
- while (stream.hasPrevious()) {
- stream.previous();
- // should allow concurrent modification
- this.originalList.add("bar");
- i--;
- }
- assertTrue(originalSize != this.originalList.size());
- assertEquals(0, i);
- }
-
- public void testPrevious() {
- ListIterator<String> nestedListIterator = this.buildNestedListIterator();
- ListIterator<String> stream = this.buildCloneListIterator();
- while (stream.hasNext()) {
- nestedListIterator.next();
- stream.next();
- }
- while (stream.hasPrevious()) {
- assertEquals("bogus element", nestedListIterator.previous(), stream.previous());
- }
- }
-
- public void testNoSuchElementException() {
- boolean exCaught = false;
- ListIterator<String> stream = this.buildCloneListIterator();
- String string = null;
- while (stream.hasNext()) {
- string = stream.next();
- }
- try {
- string = stream.next();
- } catch (NoSuchElementException ex) {
- exCaught = true;
- }
- assertTrue("NoSuchElementException not thrown: " + string, exCaught);
-
- exCaught = false;
- while (stream.hasPrevious()) {
- string = stream.previous();
- }
- try {
- string = stream.previous();
- } catch (NoSuchElementException ex) {
- exCaught = true;
- }
- assertTrue("NoSuchElementException not thrown: " + string, exCaught);
- }
-
- public void testModifyDefault() {
- boolean exCaught = false;
- for (ListIterator<String> stream = this.buildCloneListIterator(); stream.hasNext();) {
- if (stream.next().equals("three")) {
- try {
- stream.remove();
- } catch (UnsupportedOperationException ex) {
- exCaught = true;
- }
- }
- }
- assertTrue("UnsupportedOperationException not thrown", exCaught);
-
- exCaught = false;
- for (ListIterator<String> stream = this.buildCloneListIterator(); stream.hasNext();) {
- if (stream.next().equals("three")) {
- try {
- stream.add("three and a half");
- } catch (UnsupportedOperationException ex) {
- exCaught = true;
- }
- }
- }
- assertTrue("UnsupportedOperationException not thrown", exCaught);
-
- exCaught = false;
- for (ListIterator<String> stream = this.buildCloneListIterator(); stream.hasNext();) {
- if (stream.next().equals("three")) {
- try {
- stream.set("another three");
- } catch (UnsupportedOperationException ex) {
- exCaught = true;
- }
- }
- }
- assertTrue("UnsupportedOperationException not thrown", exCaught);
- }
-
- public void testModifyMutatorNext() {
- this.verifyModifyNext(new CloneListIterator<String>(this.originalList, this.buildMutator()));
- }
-
- public void testModifyMutatorPrevious() {
- this.verifyModifyPrevious(new CloneListIterator<String>(this.originalList, this.buildMutator()));
- }
-
- private CloneListIterator.Mutator<String> buildMutator() {
- return new CloneListIterator.Mutator<String>() {
- public void add(int index, String o) {
- CloneListIteratorTests.this.originalList.add(index, o);
- }
-
- public void remove(int index) {
- CloneListIteratorTests.this.originalList.remove(index);
- }
-
- public void set(int index, String o) {
- CloneListIteratorTests.this.originalList.set(index, o);
- }
- };
- }
-
- public void testModifySubclassNext() {
- this.verifyModifyNext(this.buildSubclass());
- }
-
- public void testModifySubclassPrevious() {
- this.verifyModifyPrevious(this.buildSubclass());
- }
-
- private ListIterator<String> buildSubclass() {
- return new CloneListIterator<String>(this.originalList) {
- @Override
- protected void add(int currentIndex, String o) {
- CloneListIteratorTests.this.originalList.add(currentIndex, o);
- }
-
- @Override
- protected void remove(int currentIndex) {
- CloneListIteratorTests.this.originalList.remove(currentIndex);
- }
-
- @Override
- protected void set(int currentIndex, String o) {
- CloneListIteratorTests.this.originalList.set(currentIndex, o);
- }
- };
- }
-
- private void verifyModifyNext(ListIterator<String> iterator) {
- String removed = "three";
- String addedAfter = "five";
- String added = "five and a half";
- String replaced = "seven";
- String replacement = "another seven";
- assertTrue(this.originalList.contains(removed));
- assertTrue(this.originalList.contains(addedAfter));
- assertTrue(this.originalList.contains(replaced));
- // try to remove before calling #next()
- boolean exCaught = false;
- try {
- iterator.remove();
- } catch (IllegalStateException ex) {
- exCaught = true;
- }
- assertTrue("IllegalStateException not thrown", exCaught);
- while (iterator.hasNext()) {
- String next = iterator.next();
- if (next.equals(addedAfter)) {
- iterator.add(added);
- }
- if (next.equals(removed)) {
- iterator.remove();
- // try to remove twice
- exCaught = false;
- try {
- iterator.remove();
- } catch (IllegalStateException ex) {
- exCaught = true;
- }
- assertTrue("IllegalStateException not thrown", exCaught);
- }
- if (next.equals(replaced)) {
- iterator.set(replacement);
- }
- }
- assertTrue(this.originalList.contains(added));
- assertFalse(this.originalList.contains(removed));
- assertFalse(this.originalList.contains(replaced));
- assertTrue(this.originalList.contains(replacement));
- }
-
- private void verifyModifyPrevious(ListIterator<String> iterator) {
- String removed = "three";
- String addedBefore = "five";
- String added = "four and a half";
- String replaced = "seven";
- String replacement = "another seven";
- assertTrue(this.originalList.contains(removed));
- assertTrue(this.originalList.contains(addedBefore));
- assertTrue(this.originalList.contains(replaced));
- while (iterator.hasNext()) {
- iterator.next();
- }
- while (iterator.hasPrevious()) {
- Object previous = iterator.previous();
- if (previous.equals(addedBefore)) {
- iterator.add(added);
- }
- if (previous.equals(removed)) {
- iterator.remove();
- // try to remove twice
- boolean exCaught = false;
- try {
- iterator.remove();
- } catch (IllegalStateException ex) {
- exCaught = true;
- }
- assertTrue("IllegalStateException not thrown", exCaught);
- }
- if (previous.equals(replaced)) {
- iterator.set(replacement);
- }
- }
- assertTrue(this.originalList.contains(added));
- assertFalse(this.originalList.contains(removed));
- assertFalse(this.originalList.contains(replaced));
- assertTrue(this.originalList.contains(replacement));
- }
-
- private ListIterator<String> buildCloneListIterator() {
- return this.buildCloneListIterator(this.originalList);
- }
-
- private ListIterator<String> buildCloneListIterator(List<String> list) {
- return new CloneListIterator<String>(list);
- }
-
- private ListIterator<String> buildNestedListIterator() {
- return this.originalList.listIterator();
- }
-
- private List<String> buildList() {
- List<String> list = this.buildEmptyList();
- this.populateList(list);
- return list;
- }
-
- private void populateList(List<String> list) {
- list.add("zero");
- list.add("one");
- list.add("two");
- list.add("three");
- list.add("four");
- list.add("five");
- list.add("six");
- list.add("seven");
- list.add("eight");
- list.add("nine");
- }
-
- protected List<String> buildEmptyList() {
- return new ArrayList<String>();
- }
-
- /**
- * Test concurrent access: First build a clone iterator in a separate thread
- * that hangs momentarily during its construction; then modify the shared
- * collection in this thread. This would cause a
- * ConcurrentModificationException in the other thread if the clone iterator
- * were not synchronized on the original collection.
- */
- public void testConcurrentAccess() throws Exception {
- CloneIteratorTests.SlowCollection<String> slow = new CloneIteratorTests.SlowCollection<String>();
- this.populateList(slow);
- // using the unsynchronized list will cause the test to fail
- // this.originalList = slow;
- this.originalList = Collections.synchronizedList(slow);
-
- this.concurrentProblem = false;
- this.concurrentList = new ArrayList<String>();
- Thread thread = new Thread(this.buildRunnable());
- thread.start();
- while (!slow.hasStartedClone()) {
- // wait for the other thread to start the clone...
- Thread.yield();
- }
- // ...then sneak in an extra element
- this.originalList.add("seventeen");
- while (thread.isAlive()) {
- // wait for the other thread to finish
- Thread.yield();
- }
- assertFalse(this.concurrentProblem);
- List<String> expected = new ArrayList<String>();
- this.populateList(expected);
- assertEquals(expected, this.concurrentList);
- }
-
- private Runnable buildRunnable() {
- return new Runnable() {
- public void run() {
- CloneListIteratorTests.this.loopWithCloneListIterator();
- }
- };
- }
-
- /**
- * use a clone iterator to loop over the "slow" collection and copy its
- * contents to the concurrent collection
- */
- void loopWithCloneListIterator() {
- try {
- for (ListIterator<String> stream = this.buildCloneListIterator(); stream.hasNext();) {
- this.concurrentList.add(stream.next());
- }
- } catch (Throwable t) {
- this.concurrentProblem = true;
- }
- }
-
-}

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