Sort members.
This commit is contained in:
Gary Gregory
parent
8accf274ba
commit
864fda4370
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@ -73,9 +73,65 @@ public class IteratorUtilsTest {
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*/
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*/
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private List<Integer> collectionOdd = null;
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private List<Integer> collectionOdd = null;
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private final Collection<Integer> emptyCollection = new ArrayList<>(1);
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private Iterable<Integer> iterableA = null;
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private Iterable<Integer> iterableA = null;
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private final Collection<Integer> emptyCollection = new ArrayList<>(1);
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/**
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* Creates a NodeList containing the specified nodes.
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*/
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private NodeList createNodeList(final Node[] nodes) {
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return new NodeList() {
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@Override
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public int getLength() {
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return nodes.length;
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}
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@Override
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public Node item(final int index) {
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return nodes[index];
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}
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};
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}
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/**
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* creates an array of four Node instances, mocked by EasyMock.
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*/
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private Node[] createNodes() {
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final Node node1 = createMock(Node.class);
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final Node node2 = createMock(Node.class);
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final Node node3 = createMock(Node.class);
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final Node node4 = createMock(Node.class);
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replay(node1);
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replay(node2);
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replay(node3);
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replay(node4);
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return new Node[]{node1, node2, node3, node4};
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}
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/**
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* Gets an immutable Iterator operating on the elements ["a", "b", "c", "d"].
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*/
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private Iterator<String> getImmutableIterator() {
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final List<String> list = new ArrayList<>();
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list.add("a");
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list.add("b");
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list.add("c");
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list.add("d");
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return IteratorUtils.unmodifiableIterator(list.iterator());
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}
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/**
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* Gets an immutable ListIterator operating on the elements ["a", "b", "c", "d"].
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*/
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private ListIterator<String> getImmutableListIterator() {
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final List<String> list = new ArrayList<>();
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list.add("a");
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list.add("b");
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list.add("c");
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list.add("d");
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return IteratorUtils.unmodifiableListIterator(list.listIterator());
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}
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@Before
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@Before
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public void setUp() {
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public void setUp() {
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@ -97,125 +153,6 @@ public class IteratorUtilsTest {
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collectionOdd = Arrays.asList(1, 3, 5, 7, 9, 11);
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collectionOdd = Arrays.asList(1, 3, 5, 7, 9, 11);
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}
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}
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@Test
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public void testAsIterable() {
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final List<Integer> list = new ArrayList<>();
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list.add(Integer.valueOf(0));
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list.add(Integer.valueOf(1));
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list.add(Integer.valueOf(2));
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final Iterator<Integer> iterator = list.iterator();
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final Iterable<Integer> iterable = IteratorUtils.asIterable(iterator);
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int expected = 0;
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for(final Integer actual : iterable) {
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assertEquals(expected, actual.intValue());
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++expected;
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}
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// insure iteration occurred
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assertTrue(expected > 0);
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// single use iterator
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assertFalse("should not be able to iterate twice", IteratorUtils.asIterable(iterator).iterator().hasNext());
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}
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@Test
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public void testAsIterableNull() {
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try {
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IteratorUtils.asIterable(null);
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fail("Expecting NullPointerException");
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} catch (final NullPointerException ex) {
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// success
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}
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}
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@Test
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public void testAsMultipleIterable() {
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final List<Integer> list = new ArrayList<>();
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list.add(Integer.valueOf(0));
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list.add(Integer.valueOf(1));
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list.add(Integer.valueOf(2));
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final Iterator<Integer> iterator = list.iterator();
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final Iterable<Integer> iterable = IteratorUtils.asMultipleUseIterable(iterator);
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int expected = 0;
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for(final Integer actual : iterable) {
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assertEquals(expected, actual.intValue());
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++expected;
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}
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// insure iteration occurred
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assertTrue(expected > 0);
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// multiple use iterator
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expected = 0;
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for(final Integer actual : iterable) {
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assertEquals(expected, actual.intValue());
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++expected;
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}
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// insure iteration occurred
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assertTrue(expected > 0);
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}
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@Test
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public void testAsMultipleIterableNull() {
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try {
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IteratorUtils.asMultipleUseIterable(null);
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fail("Expecting NullPointerException");
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} catch (final NullPointerException ex) {
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// success
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}
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}
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@Test
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public void testToList() {
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final List<Object> list = new ArrayList<>();
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list.add(Integer.valueOf(1));
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list.add("Two");
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list.add(null);
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final List<Object> result = IteratorUtils.toList(list.iterator());
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assertEquals(list, result);
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}
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@Test
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public void testToArray() {
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final List<Object> list = new ArrayList<>();
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list.add(Integer.valueOf(1));
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list.add("Two");
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list.add(null);
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final Object[] result = IteratorUtils.toArray(list.iterator());
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assertEquals(list, Arrays.asList(result));
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try {
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IteratorUtils.toArray(null);
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fail("Expecting NullPointerException");
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} catch (final NullPointerException ex) {
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// success
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}
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}
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@Test
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public void testToArray2() {
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final List<String> list = new ArrayList<>();
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list.add("One");
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list.add("Two");
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list.add(null);
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final String[] result = IteratorUtils.toArray(list.iterator(), String.class);
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assertEquals(list, Arrays.asList(result));
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try {
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IteratorUtils.toArray(list.iterator(), null);
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fail("Expecting NullPointerException");
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} catch (final NullPointerException ex) {
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// success
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}
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try {
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IteratorUtils.toArray(null, String.class);
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fail("Expecting NullPointerException");
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} catch (final NullPointerException ex) {
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// success
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}
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}
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@Test
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@Test
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public void testArrayIterator() {
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public void testArrayIterator() {
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final Object[] objArray = {"a", "b", "c"};
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final Object[] objArray = {"a", "b", "c"};
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@ -500,29 +437,124 @@ public class IteratorUtilsTest {
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}
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}
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}
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}
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@Test
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public void testAsIterable() {
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final List<Integer> list = new ArrayList<>();
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list.add(Integer.valueOf(0));
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list.add(Integer.valueOf(1));
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list.add(Integer.valueOf(2));
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final Iterator<Integer> iterator = list.iterator();
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/**
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final Iterable<Integer> iterable = IteratorUtils.asIterable(iterator);
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* Gets an immutable Iterator operating on the elements ["a", "b", "c", "d"].
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int expected = 0;
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*/
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for(final Integer actual : iterable) {
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private Iterator<String> getImmutableIterator() {
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assertEquals(expected, actual.intValue());
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final List<String> list = new ArrayList<>();
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++expected;
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list.add("a");
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}
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list.add("b");
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// insure iteration occurred
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list.add("c");
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assertTrue(expected > 0);
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list.add("d");
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return IteratorUtils.unmodifiableIterator(list.iterator());
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// single use iterator
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assertFalse("should not be able to iterate twice", IteratorUtils.asIterable(iterator).iterator().hasNext());
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}
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@Test
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public void testAsIterableNull() {
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try {
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IteratorUtils.asIterable(null);
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fail("Expecting NullPointerException");
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} catch (final NullPointerException ex) {
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// success
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}
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}
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@Test
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public void testAsMultipleIterable() {
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final List<Integer> list = new ArrayList<>();
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list.add(Integer.valueOf(0));
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list.add(Integer.valueOf(1));
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list.add(Integer.valueOf(2));
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final Iterator<Integer> iterator = list.iterator();
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final Iterable<Integer> iterable = IteratorUtils.asMultipleUseIterable(iterator);
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int expected = 0;
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for(final Integer actual : iterable) {
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assertEquals(expected, actual.intValue());
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++expected;
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}
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// insure iteration occurred
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assertTrue(expected > 0);
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// multiple use iterator
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expected = 0;
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for(final Integer actual : iterable) {
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assertEquals(expected, actual.intValue());
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++expected;
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}
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// insure iteration occurred
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assertTrue(expected > 0);
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}
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@Test
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public void testAsMultipleIterableNull() {
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try {
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IteratorUtils.asMultipleUseIterable(null);
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fail("Expecting NullPointerException");
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} catch (final NullPointerException ex) {
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// success
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}
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}
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}
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/**
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/**
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* Gets an immutable ListIterator operating on the elements ["a", "b", "c", "d"].
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* Tests methods collatedIterator(...)
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*/
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*/
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private ListIterator<String> getImmutableListIterator() {
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@Test
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final List<String> list = new ArrayList<>();
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public void testCollatedIterator() {
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list.add("a");
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try {
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list.add("b");
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IteratorUtils.collatedIterator(null, collectionOdd.iterator(), null);
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list.add("c");
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fail("expecting NullPointerException");
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list.add("d");
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} catch (final NullPointerException npe) {
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return IteratorUtils.unmodifiableListIterator(list.listIterator());
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// expected
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}
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try {
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IteratorUtils.collatedIterator(null, null, collectionEven.iterator());
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fail("expecting NullPointerException");
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} catch (final NullPointerException npe) {
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// expected
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}
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// natural ordering
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Iterator<Integer> it =
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IteratorUtils.collatedIterator(null, collectionOdd.iterator(), collectionEven.iterator());
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List<Integer> result = IteratorUtils.toList(it);
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assertEquals(12, result.size());
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final List<Integer> combinedList = new ArrayList<>();
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combinedList.addAll(collectionOdd);
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combinedList.addAll(collectionEven);
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Collections.sort(combinedList);
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assertEquals(combinedList, result);
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it = IteratorUtils.collatedIterator(null, collectionOdd.iterator(), emptyCollection.iterator());
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result = IteratorUtils.toList(it);
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assertEquals(collectionOdd, result);
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final Comparator<Integer> reverseComparator =
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ComparatorUtils.reversedComparator(ComparatorUtils.<Integer>naturalComparator());
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Collections.reverse(collectionOdd);
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Collections.reverse(collectionEven);
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Collections.reverse(combinedList);
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it = IteratorUtils.collatedIterator(reverseComparator,
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collectionOdd.iterator(),
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collectionEven.iterator());
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result = IteratorUtils.toList(it);
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assertEquals(combinedList, result);
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}
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}
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//-----------------------------------------------------------------------
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//-----------------------------------------------------------------------
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@ -709,297 +741,28 @@ public class IteratorUtilsTest {
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} catch (final IllegalStateException ex) {}
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} catch (final IllegalStateException ex) {}
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}
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}
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//-----------------------------------------------------------------------
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/**
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* Test next() and hasNext() for an immutable Iterator.
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*/
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@Test
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@Test
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public void testUnmodifiableIteratorIteration() {
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public void testFind() {
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final Iterator<String> iterator = getImmutableIterator();
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Predicate<Number> testPredicate = equalPredicate((Number) 4);
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Integer test = IteratorUtils.find(iterableA.iterator(), testPredicate);
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assertTrue(iterator.hasNext());
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assertTrue(test.equals(4));
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testPredicate = equalPredicate((Number) 45);
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assertEquals("a", iterator.next());
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test = IteratorUtils.find(iterableA.iterator(), testPredicate);
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assertTrue(test == null);
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assertTrue(iterator.hasNext());
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assertNull(IteratorUtils.find(null,testPredicate));
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assertEquals("b", iterator.next());
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assertTrue(iterator.hasNext());
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assertEquals("c", iterator.next());
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assertTrue(iterator.hasNext());
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assertEquals("d", iterator.next());
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assertTrue(!iterator.hasNext());
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}
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/**
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* Test next(), hasNext(), previous() and hasPrevious() for an immutable
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* ListIterator.
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*/
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@Test
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public void testUnmodifiableListIteratorIteration() {
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final ListIterator<String> listIterator = getImmutableListIterator();
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assertTrue(!listIterator.hasPrevious());
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assertTrue(listIterator.hasNext());
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assertEquals("a", listIterator.next());
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assertTrue(listIterator.hasPrevious());
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assertTrue(listIterator.hasNext());
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assertEquals("b", listIterator.next());
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assertTrue(listIterator.hasPrevious());
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assertTrue(listIterator.hasNext());
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assertEquals("c", listIterator.next());
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assertTrue(listIterator.hasPrevious());
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assertTrue(listIterator.hasNext());
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assertEquals("d", listIterator.next());
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assertTrue(listIterator.hasPrevious());
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assertTrue(!listIterator.hasNext());
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assertEquals("d", listIterator.previous());
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assertTrue(listIterator.hasPrevious());
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assertTrue(listIterator.hasNext());
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assertEquals("c", listIterator.previous());
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assertTrue(listIterator.hasPrevious());
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assertTrue(listIterator.hasNext());
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assertEquals("b", listIterator.previous());
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assertTrue(listIterator.hasPrevious());
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assertTrue(listIterator.hasNext());
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assertEquals("a", listIterator.previous());
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assertTrue(!listIterator.hasPrevious());
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assertTrue(listIterator.hasNext());
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}
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/**
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* Test remove() for an immutable Iterator.
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*/
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@Test
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public void testUnmodifiableIteratorImmutability() {
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final Iterator<String> iterator = getImmutableIterator();
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try {
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try {
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iterator.remove();
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assertNull(IteratorUtils.find(iterableA.iterator(), null));
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// We shouldn't get to here.
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|
||||||
fail("remove() should throw an UnsupportedOperationException");
|
|
||||||
} catch (final UnsupportedOperationException e) {
|
|
||||||
// This is correct; ignore the exception.
|
|
||||||
}
|
|
||||||
|
|
||||||
iterator.next();
|
|
||||||
|
|
||||||
try {
|
|
||||||
iterator.remove();
|
|
||||||
// We shouldn't get to here.
|
|
||||||
fail("remove() should throw an UnsupportedOperationException");
|
|
||||||
} catch (final UnsupportedOperationException e) {
|
|
||||||
// This is correct; ignore the exception.
|
|
||||||
}
|
|
||||||
|
|
||||||
}
|
|
||||||
|
|
||||||
/**
|
|
||||||
* Test remove() for an immutable ListIterator.
|
|
||||||
*/
|
|
||||||
@Test
|
|
||||||
public void testUnmodifiableListIteratorImmutability() {
|
|
||||||
final ListIterator<String> listIterator = getImmutableListIterator();
|
|
||||||
|
|
||||||
try {
|
|
||||||
listIterator.remove();
|
|
||||||
// We shouldn't get to here.
|
|
||||||
fail("remove() should throw an UnsupportedOperationException");
|
|
||||||
} catch (final UnsupportedOperationException e) {
|
|
||||||
// This is correct; ignore the exception.
|
|
||||||
}
|
|
||||||
|
|
||||||
try {
|
|
||||||
listIterator.set("a");
|
|
||||||
// We shouldn't get to here.
|
|
||||||
fail("set(Object) should throw an UnsupportedOperationException");
|
|
||||||
} catch (final UnsupportedOperationException e) {
|
|
||||||
// This is correct; ignore the exception.
|
|
||||||
}
|
|
||||||
|
|
||||||
try {
|
|
||||||
listIterator.add("a");
|
|
||||||
// We shouldn't get to here.
|
|
||||||
fail("add(Object) should throw an UnsupportedOperationException");
|
|
||||||
} catch (final UnsupportedOperationException e) {
|
|
||||||
// This is correct; ignore the exception.
|
|
||||||
}
|
|
||||||
|
|
||||||
listIterator.next();
|
|
||||||
|
|
||||||
try {
|
|
||||||
listIterator.remove();
|
|
||||||
// We shouldn't get to here.
|
|
||||||
fail("remove() should throw an UnsupportedOperationException");
|
|
||||||
} catch (final UnsupportedOperationException e) {
|
|
||||||
// This is correct; ignore the exception.
|
|
||||||
}
|
|
||||||
|
|
||||||
try {
|
|
||||||
listIterator.set("a");
|
|
||||||
// We shouldn't get to here.
|
|
||||||
fail("set(Object) should throw an UnsupportedOperationException");
|
|
||||||
} catch (final UnsupportedOperationException e) {
|
|
||||||
// This is correct; ignore the exception.
|
|
||||||
}
|
|
||||||
|
|
||||||
try {
|
|
||||||
listIterator.add("a");
|
|
||||||
// We shouldn't get to here.
|
|
||||||
fail("add(Object) should throw an UnsupportedOperationException");
|
|
||||||
} catch (final UnsupportedOperationException e) {
|
|
||||||
// This is correct; ignore the exception.
|
|
||||||
}
|
|
||||||
}
|
|
||||||
|
|
||||||
/**
|
|
||||||
* Tests method nodeListIterator(NodeList)
|
|
||||||
*/
|
|
||||||
@Test
|
|
||||||
public void testNodeListIterator() {
|
|
||||||
final Node[] nodes = createNodes();
|
|
||||||
final NodeList nodeList = createNodeList(nodes);
|
|
||||||
|
|
||||||
final Iterator<Node> iterator = IteratorUtils.nodeListIterator(nodeList);
|
|
||||||
int expectedNodeIndex = 0;
|
|
||||||
for (final Node actual : IteratorUtils.asIterable(iterator)) {
|
|
||||||
assertEquals(nodes[expectedNodeIndex], actual);
|
|
||||||
++expectedNodeIndex;
|
|
||||||
}
|
|
||||||
|
|
||||||
// insure iteration occurred
|
|
||||||
assertTrue(expectedNodeIndex > 0);
|
|
||||||
|
|
||||||
// single use iterator
|
|
||||||
assertFalse("should not be able to iterate twice", IteratorUtils.asIterable(iterator).iterator().hasNext());
|
|
||||||
}
|
|
||||||
/**
|
|
||||||
* Tests method nodeListIterator(Node)
|
|
||||||
*/
|
|
||||||
@Test
|
|
||||||
public void testNodeIterator() {
|
|
||||||
final Node[] nodes = createNodes();
|
|
||||||
final NodeList nodeList = createNodeList(nodes);
|
|
||||||
final Node parentNode = createMock(Node.class);
|
|
||||||
expect(parentNode.getChildNodes()).andStubReturn(nodeList);
|
|
||||||
replay(parentNode);
|
|
||||||
|
|
||||||
final Iterator<Node> iterator = IteratorUtils.nodeListIterator(parentNode);
|
|
||||||
int expectedNodeIndex = 0;
|
|
||||||
for (final Node actual : IteratorUtils.asIterable(iterator)) {
|
|
||||||
assertEquals(nodes[expectedNodeIndex], actual);
|
|
||||||
++expectedNodeIndex;
|
|
||||||
}
|
|
||||||
|
|
||||||
// insure iteration occurred
|
|
||||||
assertTrue(expectedNodeIndex > 0);
|
|
||||||
|
|
||||||
// single use iterator
|
|
||||||
assertFalse("should not be able to iterate twice", IteratorUtils.asIterable(iterator).iterator().hasNext());
|
|
||||||
}
|
|
||||||
|
|
||||||
/**
|
|
||||||
* creates an array of four Node instances, mocked by EasyMock.
|
|
||||||
*/
|
|
||||||
private Node[] createNodes() {
|
|
||||||
final Node node1 = createMock(Node.class);
|
|
||||||
final Node node2 = createMock(Node.class);
|
|
||||||
final Node node3 = createMock(Node.class);
|
|
||||||
final Node node4 = createMock(Node.class);
|
|
||||||
replay(node1);
|
|
||||||
replay(node2);
|
|
||||||
replay(node3);
|
|
||||||
replay(node4);
|
|
||||||
|
|
||||||
return new Node[]{node1, node2, node3, node4};
|
|
||||||
}
|
|
||||||
|
|
||||||
/**
|
|
||||||
* Creates a NodeList containing the specified nodes.
|
|
||||||
*/
|
|
||||||
private NodeList createNodeList(final Node[] nodes) {
|
|
||||||
return new NodeList() {
|
|
||||||
@Override
|
|
||||||
public Node item(final int index) {
|
|
||||||
return nodes[index];
|
|
||||||
}
|
|
||||||
@Override
|
|
||||||
public int getLength() {
|
|
||||||
return nodes.length;
|
|
||||||
}
|
|
||||||
};
|
|
||||||
}
|
|
||||||
|
|
||||||
/**
|
|
||||||
* Tests methods collatedIterator(...)
|
|
||||||
*/
|
|
||||||
@Test
|
|
||||||
public void testCollatedIterator() {
|
|
||||||
try {
|
|
||||||
IteratorUtils.collatedIterator(null, collectionOdd.iterator(), null);
|
|
||||||
fail("expecting NullPointerException");
|
fail("expecting NullPointerException");
|
||||||
} catch (final NullPointerException npe) {
|
} catch (final NullPointerException npe) {
|
||||||
// expected
|
// expected
|
||||||
}
|
}
|
||||||
|
}
|
||||||
|
|
||||||
try {
|
@Test
|
||||||
IteratorUtils.collatedIterator(null, null, collectionEven.iterator());
|
public void testFirstFromIterator() throws Exception {
|
||||||
fail("expecting NullPointerException");
|
// Iterator, entry exists
|
||||||
} catch (final NullPointerException npe) {
|
Iterator<Integer> iterator = iterableA.iterator();
|
||||||
// expected
|
assertEquals(1, (int) IteratorUtils.first(iterator));
|
||||||
}
|
|
||||||
|
|
||||||
// natural ordering
|
|
||||||
Iterator<Integer> it =
|
|
||||||
IteratorUtils.collatedIterator(null, collectionOdd.iterator(), collectionEven.iterator());
|
|
||||||
|
|
||||||
List<Integer> result = IteratorUtils.toList(it);
|
|
||||||
assertEquals(12, result.size());
|
|
||||||
|
|
||||||
final List<Integer> combinedList = new ArrayList<>();
|
|
||||||
combinedList.addAll(collectionOdd);
|
|
||||||
combinedList.addAll(collectionEven);
|
|
||||||
Collections.sort(combinedList);
|
|
||||||
|
|
||||||
assertEquals(combinedList, result);
|
|
||||||
|
|
||||||
it = IteratorUtils.collatedIterator(null, collectionOdd.iterator(), emptyCollection.iterator());
|
|
||||||
result = IteratorUtils.toList(it);
|
|
||||||
assertEquals(collectionOdd, result);
|
|
||||||
|
|
||||||
final Comparator<Integer> reverseComparator =
|
|
||||||
ComparatorUtils.reversedComparator(ComparatorUtils.<Integer>naturalComparator());
|
|
||||||
|
|
||||||
Collections.reverse(collectionOdd);
|
|
||||||
Collections.reverse(collectionEven);
|
|
||||||
Collections.reverse(combinedList);
|
|
||||||
|
|
||||||
it = IteratorUtils.collatedIterator(reverseComparator,
|
|
||||||
collectionOdd.iterator(),
|
|
||||||
collectionEven.iterator());
|
|
||||||
result = IteratorUtils.toList(it);
|
|
||||||
assertEquals(combinedList, result);
|
|
||||||
}
|
}
|
||||||
|
|
||||||
// -----------------------------------------------------------------------
|
// -----------------------------------------------------------------------
|
||||||
|
|
@ -1064,20 +827,37 @@ public class IteratorUtilsTest {
|
||||||
}
|
}
|
||||||
|
|
||||||
@Test
|
@Test
|
||||||
public void testFind() {
|
public void testGetAtIndexFromIterator() throws Exception {
|
||||||
Predicate<Number> testPredicate = equalPredicate((Number) 4);
|
// Iterator, entry exists
|
||||||
Integer test = IteratorUtils.find(iterableA.iterator(), testPredicate);
|
Iterator<Integer> iterator = iterableA.iterator();
|
||||||
assertTrue(test.equals(4));
|
assertEquals(1, (int) IteratorUtils.get(iterator, 0));
|
||||||
testPredicate = equalPredicate((Number) 45);
|
iterator = iterableA.iterator();
|
||||||
test = IteratorUtils.find(iterableA.iterator(), testPredicate);
|
assertEquals(2, (int) IteratorUtils.get(iterator, 1));
|
||||||
assertTrue(test == null);
|
|
||||||
assertNull(IteratorUtils.find(null,testPredicate));
|
// Iterator, non-existent entry
|
||||||
try {
|
try {
|
||||||
assertNull(IteratorUtils.find(iterableA.iterator(), null));
|
IteratorUtils.get(iterator, 10);
|
||||||
fail("expecting NullPointerException");
|
fail("Expecting IndexOutOfBoundsException.");
|
||||||
} catch (final NullPointerException npe) {
|
} catch (final IndexOutOfBoundsException e) {
|
||||||
// expected
|
// expected
|
||||||
}
|
}
|
||||||
|
assertTrue(!iterator.hasNext());
|
||||||
|
}
|
||||||
|
@Test
|
||||||
|
public void testGetIterator() {
|
||||||
|
final Object[] objArray = {"a", "b", "c"};
|
||||||
|
final Map<String, String> inMap = new HashMap<>();
|
||||||
|
final Node[] nodes = createNodes();
|
||||||
|
final NodeList nodeList = createNodeList(nodes);
|
||||||
|
|
||||||
|
assertTrue("returns empty iterator when null passed", IteratorUtils.getIterator(null) instanceof EmptyIterator);
|
||||||
|
assertTrue("returns Iterator when Iterator directly ", IteratorUtils.getIterator(iterableA.iterator()) instanceof Iterator);
|
||||||
|
assertTrue("returns Iterator when iterable passed", IteratorUtils.getIterator(iterableA) instanceof Iterator);
|
||||||
|
assertTrue("returns ObjectArrayIterator when Object array passed", IteratorUtils.getIterator(objArray) instanceof ObjectArrayIterator);
|
||||||
|
assertTrue("returns Iterator when Map passed", IteratorUtils.getIterator(inMap) instanceof Iterator);
|
||||||
|
assertTrue("returns NodeListIterator when nodeList passed", IteratorUtils.getIterator(nodeList) instanceof NodeListIterator);
|
||||||
|
assertTrue("returns EnumerationIterator when Enumeration passed", IteratorUtils.getIterator(new Vector().elements()) instanceof EnumerationIterator);
|
||||||
|
|
||||||
}
|
}
|
||||||
|
|
||||||
@Test
|
@Test
|
||||||
|
|
@ -1097,46 +877,102 @@ public class IteratorUtilsTest {
|
||||||
}
|
}
|
||||||
}
|
}
|
||||||
|
|
||||||
|
/**
|
||||||
|
* Tests method nodeListIterator(Node)
|
||||||
|
*/
|
||||||
@Test
|
@Test
|
||||||
public void testGetAtIndexFromIterator() throws Exception {
|
public void testNodeIterator() {
|
||||||
// Iterator, entry exists
|
final Node[] nodes = createNodes();
|
||||||
Iterator<Integer> iterator = iterableA.iterator();
|
final NodeList nodeList = createNodeList(nodes);
|
||||||
assertEquals(1, (int) IteratorUtils.get(iterator, 0));
|
final Node parentNode = createMock(Node.class);
|
||||||
iterator = iterableA.iterator();
|
expect(parentNode.getChildNodes()).andStubReturn(nodeList);
|
||||||
assertEquals(2, (int) IteratorUtils.get(iterator, 1));
|
replay(parentNode);
|
||||||
|
|
||||||
// Iterator, non-existent entry
|
final Iterator<Node> iterator = IteratorUtils.nodeListIterator(parentNode);
|
||||||
try {
|
int expectedNodeIndex = 0;
|
||||||
IteratorUtils.get(iterator, 10);
|
for (final Node actual : IteratorUtils.asIterable(iterator)) {
|
||||||
fail("Expecting IndexOutOfBoundsException.");
|
assertEquals(nodes[expectedNodeIndex], actual);
|
||||||
} catch (final IndexOutOfBoundsException e) {
|
++expectedNodeIndex;
|
||||||
// expected
|
|
||||||
}
|
}
|
||||||
assertTrue(!iterator.hasNext());
|
|
||||||
|
// insure iteration occurred
|
||||||
|
assertTrue(expectedNodeIndex > 0);
|
||||||
|
|
||||||
|
// single use iterator
|
||||||
|
assertFalse("should not be able to iterate twice", IteratorUtils.asIterable(iterator).iterator().hasNext());
|
||||||
}
|
}
|
||||||
|
|
||||||
|
/**
|
||||||
|
* Tests method nodeListIterator(NodeList)
|
||||||
|
*/
|
||||||
@Test
|
@Test
|
||||||
public void testFirstFromIterator() throws Exception {
|
public void testNodeListIterator() {
|
||||||
// Iterator, entry exists
|
|
||||||
Iterator<Integer> iterator = iterableA.iterator();
|
|
||||||
assertEquals(1, (int) IteratorUtils.first(iterator));
|
|
||||||
}
|
|
||||||
|
|
||||||
@Test
|
|
||||||
public void testGetIterator() {
|
|
||||||
final Object[] objArray = {"a", "b", "c"};
|
|
||||||
final Map<String, String> inMap = new HashMap<>();
|
|
||||||
final Node[] nodes = createNodes();
|
final Node[] nodes = createNodes();
|
||||||
final NodeList nodeList = createNodeList(nodes);
|
final NodeList nodeList = createNodeList(nodes);
|
||||||
|
|
||||||
assertTrue("returns empty iterator when null passed", IteratorUtils.getIterator(null) instanceof EmptyIterator);
|
final Iterator<Node> iterator = IteratorUtils.nodeListIterator(nodeList);
|
||||||
assertTrue("returns Iterator when Iterator directly ", IteratorUtils.getIterator(iterableA.iterator()) instanceof Iterator);
|
int expectedNodeIndex = 0;
|
||||||
assertTrue("returns Iterator when iterable passed", IteratorUtils.getIterator(iterableA) instanceof Iterator);
|
for (final Node actual : IteratorUtils.asIterable(iterator)) {
|
||||||
assertTrue("returns ObjectArrayIterator when Object array passed", IteratorUtils.getIterator(objArray) instanceof ObjectArrayIterator);
|
assertEquals(nodes[expectedNodeIndex], actual);
|
||||||
assertTrue("returns Iterator when Map passed", IteratorUtils.getIterator(inMap) instanceof Iterator);
|
++expectedNodeIndex;
|
||||||
assertTrue("returns NodeListIterator when nodeList passed", IteratorUtils.getIterator(nodeList) instanceof NodeListIterator);
|
}
|
||||||
assertTrue("returns EnumerationIterator when Enumeration passed", IteratorUtils.getIterator(new Vector().elements()) instanceof EnumerationIterator);
|
|
||||||
|
|
||||||
|
// insure iteration occurred
|
||||||
|
assertTrue(expectedNodeIndex > 0);
|
||||||
|
|
||||||
|
// single use iterator
|
||||||
|
assertFalse("should not be able to iterate twice", IteratorUtils.asIterable(iterator).iterator().hasNext());
|
||||||
|
}
|
||||||
|
|
||||||
|
@Test
|
||||||
|
public void testToArray() {
|
||||||
|
final List<Object> list = new ArrayList<>();
|
||||||
|
list.add(Integer.valueOf(1));
|
||||||
|
list.add("Two");
|
||||||
|
list.add(null);
|
||||||
|
final Object[] result = IteratorUtils.toArray(list.iterator());
|
||||||
|
assertEquals(list, Arrays.asList(result));
|
||||||
|
|
||||||
|
try {
|
||||||
|
IteratorUtils.toArray(null);
|
||||||
|
fail("Expecting NullPointerException");
|
||||||
|
} catch (final NullPointerException ex) {
|
||||||
|
// success
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
@Test
|
||||||
|
public void testToArray2() {
|
||||||
|
final List<String> list = new ArrayList<>();
|
||||||
|
list.add("One");
|
||||||
|
list.add("Two");
|
||||||
|
list.add(null);
|
||||||
|
final String[] result = IteratorUtils.toArray(list.iterator(), String.class);
|
||||||
|
assertEquals(list, Arrays.asList(result));
|
||||||
|
|
||||||
|
try {
|
||||||
|
IteratorUtils.toArray(list.iterator(), null);
|
||||||
|
fail("Expecting NullPointerException");
|
||||||
|
} catch (final NullPointerException ex) {
|
||||||
|
// success
|
||||||
|
}
|
||||||
|
|
||||||
|
try {
|
||||||
|
IteratorUtils.toArray(null, String.class);
|
||||||
|
fail("Expecting NullPointerException");
|
||||||
|
} catch (final NullPointerException ex) {
|
||||||
|
// success
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
@Test
|
||||||
|
public void testToList() {
|
||||||
|
final List<Object> list = new ArrayList<>();
|
||||||
|
list.add(Integer.valueOf(1));
|
||||||
|
list.add("Two");
|
||||||
|
list.add(null);
|
||||||
|
final List<Object> result = IteratorUtils.toList(list.iterator());
|
||||||
|
assertEquals(list, result);
|
||||||
}
|
}
|
||||||
|
|
||||||
@Test
|
@Test
|
||||||
|
|
@ -1165,4 +1001,168 @@ public class IteratorUtilsTest {
|
||||||
}
|
}
|
||||||
}
|
}
|
||||||
|
|
||||||
|
/**
|
||||||
|
* Test remove() for an immutable Iterator.
|
||||||
|
*/
|
||||||
|
@Test
|
||||||
|
public void testUnmodifiableIteratorImmutability() {
|
||||||
|
final Iterator<String> iterator = getImmutableIterator();
|
||||||
|
|
||||||
|
try {
|
||||||
|
iterator.remove();
|
||||||
|
// We shouldn't get to here.
|
||||||
|
fail("remove() should throw an UnsupportedOperationException");
|
||||||
|
} catch (final UnsupportedOperationException e) {
|
||||||
|
// This is correct; ignore the exception.
|
||||||
|
}
|
||||||
|
|
||||||
|
iterator.next();
|
||||||
|
|
||||||
|
try {
|
||||||
|
iterator.remove();
|
||||||
|
// We shouldn't get to here.
|
||||||
|
fail("remove() should throw an UnsupportedOperationException");
|
||||||
|
} catch (final UnsupportedOperationException e) {
|
||||||
|
// This is correct; ignore the exception.
|
||||||
|
}
|
||||||
|
|
||||||
|
}
|
||||||
|
|
||||||
|
//-----------------------------------------------------------------------
|
||||||
|
/**
|
||||||
|
* Test next() and hasNext() for an immutable Iterator.
|
||||||
|
*/
|
||||||
|
@Test
|
||||||
|
public void testUnmodifiableIteratorIteration() {
|
||||||
|
final Iterator<String> iterator = getImmutableIterator();
|
||||||
|
|
||||||
|
assertTrue(iterator.hasNext());
|
||||||
|
|
||||||
|
assertEquals("a", iterator.next());
|
||||||
|
|
||||||
|
assertTrue(iterator.hasNext());
|
||||||
|
|
||||||
|
assertEquals("b", iterator.next());
|
||||||
|
|
||||||
|
assertTrue(iterator.hasNext());
|
||||||
|
|
||||||
|
assertEquals("c", iterator.next());
|
||||||
|
|
||||||
|
assertTrue(iterator.hasNext());
|
||||||
|
|
||||||
|
assertEquals("d", iterator.next());
|
||||||
|
|
||||||
|
assertTrue(!iterator.hasNext());
|
||||||
|
}
|
||||||
|
|
||||||
|
/**
|
||||||
|
* Test remove() for an immutable ListIterator.
|
||||||
|
*/
|
||||||
|
@Test
|
||||||
|
public void testUnmodifiableListIteratorImmutability() {
|
||||||
|
final ListIterator<String> listIterator = getImmutableListIterator();
|
||||||
|
|
||||||
|
try {
|
||||||
|
listIterator.remove();
|
||||||
|
// We shouldn't get to here.
|
||||||
|
fail("remove() should throw an UnsupportedOperationException");
|
||||||
|
} catch (final UnsupportedOperationException e) {
|
||||||
|
// This is correct; ignore the exception.
|
||||||
|
}
|
||||||
|
|
||||||
|
try {
|
||||||
|
listIterator.set("a");
|
||||||
|
// We shouldn't get to here.
|
||||||
|
fail("set(Object) should throw an UnsupportedOperationException");
|
||||||
|
} catch (final UnsupportedOperationException e) {
|
||||||
|
// This is correct; ignore the exception.
|
||||||
|
}
|
||||||
|
|
||||||
|
try {
|
||||||
|
listIterator.add("a");
|
||||||
|
// We shouldn't get to here.
|
||||||
|
fail("add(Object) should throw an UnsupportedOperationException");
|
||||||
|
} catch (final UnsupportedOperationException e) {
|
||||||
|
// This is correct; ignore the exception.
|
||||||
|
}
|
||||||
|
|
||||||
|
listIterator.next();
|
||||||
|
|
||||||
|
try {
|
||||||
|
listIterator.remove();
|
||||||
|
// We shouldn't get to here.
|
||||||
|
fail("remove() should throw an UnsupportedOperationException");
|
||||||
|
} catch (final UnsupportedOperationException e) {
|
||||||
|
// This is correct; ignore the exception.
|
||||||
|
}
|
||||||
|
|
||||||
|
try {
|
||||||
|
listIterator.set("a");
|
||||||
|
// We shouldn't get to here.
|
||||||
|
fail("set(Object) should throw an UnsupportedOperationException");
|
||||||
|
} catch (final UnsupportedOperationException e) {
|
||||||
|
// This is correct; ignore the exception.
|
||||||
|
}
|
||||||
|
|
||||||
|
try {
|
||||||
|
listIterator.add("a");
|
||||||
|
// We shouldn't get to here.
|
||||||
|
fail("add(Object) should throw an UnsupportedOperationException");
|
||||||
|
} catch (final UnsupportedOperationException e) {
|
||||||
|
// This is correct; ignore the exception.
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
/**
|
||||||
|
* Test next(), hasNext(), previous() and hasPrevious() for an immutable
|
||||||
|
* ListIterator.
|
||||||
|
*/
|
||||||
|
@Test
|
||||||
|
public void testUnmodifiableListIteratorIteration() {
|
||||||
|
final ListIterator<String> listIterator = getImmutableListIterator();
|
||||||
|
|
||||||
|
assertTrue(!listIterator.hasPrevious());
|
||||||
|
assertTrue(listIterator.hasNext());
|
||||||
|
|
||||||
|
assertEquals("a", listIterator.next());
|
||||||
|
|
||||||
|
assertTrue(listIterator.hasPrevious());
|
||||||
|
assertTrue(listIterator.hasNext());
|
||||||
|
|
||||||
|
assertEquals("b", listIterator.next());
|
||||||
|
|
||||||
|
assertTrue(listIterator.hasPrevious());
|
||||||
|
assertTrue(listIterator.hasNext());
|
||||||
|
|
||||||
|
assertEquals("c", listIterator.next());
|
||||||
|
|
||||||
|
assertTrue(listIterator.hasPrevious());
|
||||||
|
assertTrue(listIterator.hasNext());
|
||||||
|
|
||||||
|
assertEquals("d", listIterator.next());
|
||||||
|
|
||||||
|
assertTrue(listIterator.hasPrevious());
|
||||||
|
assertTrue(!listIterator.hasNext());
|
||||||
|
|
||||||
|
assertEquals("d", listIterator.previous());
|
||||||
|
|
||||||
|
assertTrue(listIterator.hasPrevious());
|
||||||
|
assertTrue(listIterator.hasNext());
|
||||||
|
|
||||||
|
assertEquals("c", listIterator.previous());
|
||||||
|
|
||||||
|
assertTrue(listIterator.hasPrevious());
|
||||||
|
assertTrue(listIterator.hasNext());
|
||||||
|
|
||||||
|
assertEquals("b", listIterator.previous());
|
||||||
|
|
||||||
|
assertTrue(listIterator.hasPrevious());
|
||||||
|
assertTrue(listIterator.hasNext());
|
||||||
|
|
||||||
|
assertEquals("a", listIterator.previous());
|
||||||
|
|
||||||
|
assertTrue(!listIterator.hasPrevious());
|
||||||
|
assertTrue(listIterator.hasNext());
|
||||||
|
}
|
||||||
|
|
||||||
}
|
}
|
||||||
|
|
|
||||||
Loading…
Reference in New Issue