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+// Protocol Buffers - Google's data interchange format
+// Copyright 2008 Google Inc. All rights reserved.
+// https://developers.google.com/protocol-buffers/
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+// * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+// * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+// * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived from
+// this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+package com.google.protobuf;
+
+import static java.util.Arrays.asList;
+
+import junit.framework.TestCase;
+
+import java.util.Collections;
+import java.util.ConcurrentModificationException;
+import java.util.Iterator;
+
+/**
+ * Tests for {@link LongArrayList}.
+ *
+ * @author dweis@google.com (Daniel Weis)
+ */
+public class LongArrayListTest extends TestCase {
+
+ private static final LongArrayList UNARY_LIST =
+ newImmutableLongArrayList(1);
+ private static final LongArrayList TERTIARY_LIST =
+ newImmutableLongArrayList(1, 2, 3);
+
+ private LongArrayList list;
+
+ @Override
+ protected void setUp() throws Exception {
+ list = new LongArrayList();
+ }
+
+ public void testEmptyListReturnsSameInstance() {
+ assertSame(LongArrayList.emptyList(), LongArrayList.emptyList());
+ }
+
+ public void testEmptyListIsImmutable() {
+ assertImmutable(LongArrayList.emptyList());
+ }
+
+ public void testMakeImmutable() {
+ list.addLong(3);
+ list.addLong(4);
+ list.addLong(5);
+ list.addLong(7);
+ list.makeImmutable();
+ assertImmutable(list);
+ }
+
+ public void testModificationWithIteration() {
+ list.addAll(asList(1L, 2L, 3L, 4L));
+ Iterator<Long> iterator = list.iterator();
+ assertEquals(4, list.size());
+ assertEquals(1L, (long) list.get(0));
+ assertEquals(1L, (long) iterator.next());
+ list.set(0, 1L);
+ assertEquals(2L, (long) iterator.next());
+
+ list.remove(0);
+ try {
+ iterator.next();
+ fail();
+ } catch (ConcurrentModificationException e) {
+ // expected
+ }
+
+ iterator = list.iterator();
+ list.add(0, 0L);
+ try {
+ iterator.next();
+ fail();
+ } catch (ConcurrentModificationException e) {
+ // expected
+ }
+ }
+
+ public void testGet() {
+ assertEquals(1L, (long) TERTIARY_LIST.get(0));
+ assertEquals(2L, (long) TERTIARY_LIST.get(1));
+ assertEquals(3L, (long) TERTIARY_LIST.get(2));
+
+ try {
+ TERTIARY_LIST.get(-1);
+ fail();
+ } catch (IndexOutOfBoundsException e) {
+ // expected
+ }
+
+ try {
+ TERTIARY_LIST.get(3);
+ fail();
+ } catch (IndexOutOfBoundsException e) {
+ // expected
+ }
+ }
+
+ public void testGetLong() {
+ assertEquals(1L, TERTIARY_LIST.getLong(0));
+ assertEquals(2L, TERTIARY_LIST.getLong(1));
+ assertEquals(3L, TERTIARY_LIST.getLong(2));
+
+ try {
+ TERTIARY_LIST.get(-1);
+ fail();
+ } catch (IndexOutOfBoundsException e) {
+ // expected
+ }
+
+ try {
+ TERTIARY_LIST.get(3);
+ fail();
+ } catch (IndexOutOfBoundsException e) {
+ // expected
+ }
+ }
+
+ public void testSize() {
+ assertEquals(0, LongArrayList.emptyList().size());
+ assertEquals(1, UNARY_LIST.size());
+ assertEquals(3, TERTIARY_LIST.size());
+
+ list.addLong(3);
+ list.addLong(4);
+ list.addLong(6);
+ list.addLong(8);
+ assertEquals(4, list.size());
+
+ list.remove(0);
+ assertEquals(3, list.size());
+
+ list.add(17L);
+ assertEquals(4, list.size());
+ }
+
+ public void testSet() {
+ list.addLong(2);
+ list.addLong(4);
+
+ assertEquals(2L, (long) list.set(0, 3L));
+ assertEquals(3L, list.getLong(0));
+
+ assertEquals(4L, (long) list.set(1, 0L));
+ assertEquals(0L, list.getLong(1));
+
+ try {
+ list.set(-1, 0L);
+ fail();
+ } catch (IndexOutOfBoundsException e) {
+ // expected
+ }
+
+ try {
+ list.set(2, 0L);
+ fail();
+ } catch (IndexOutOfBoundsException e) {
+ // expected
+ }
+ }
+
+ public void testSetLong() {
+ list.addLong(1);
+ list.addLong(3);
+
+ assertEquals(1L, list.setLong(0, 0));
+ assertEquals(0L, list.getLong(0));
+
+ assertEquals(3L, list.setLong(1, 0));
+ assertEquals(0L, list.getLong(1));
+
+ try {
+ list.setLong(-1, 0);
+ fail();
+ } catch (IndexOutOfBoundsException e) {
+ // expected
+ }
+
+ try {
+ list.setLong(2, 0);
+ fail();
+ } catch (IndexOutOfBoundsException e) {
+ // expected
+ }
+ }
+
+ public void testAdd() {
+ assertEquals(0, list.size());
+
+ assertTrue(list.add(2L));
+ assertEquals(asList(2L), list);
+
+ assertTrue(list.add(3L));
+ list.add(0, 4L);
+ assertEquals(asList(4L, 2L, 3L), list);
+
+ list.add(0, 1L);
+ list.add(0, 0L);
+ // Force a resize by getting up to 11 elements.
+ for (int i = 0; i < 6; i++) {
+ list.add(Long.valueOf(5 + i));
+ }
+ assertEquals(
+ asList(0L, 1L, 4L, 2L, 3L, 5L, 6L, 7L, 8L, 9L, 10L),
+ list);
+
+ try {
+ list.add(-1, 5L);
+ } catch (IndexOutOfBoundsException e) {
+ // expected
+ }
+
+ try {
+ list.add(4, 5L);
+ } catch (IndexOutOfBoundsException e) {
+ // expected
+ }
+ }
+
+ public void testAddLong() {
+ assertEquals(0, list.size());
+
+ list.addLong(2);
+ assertEquals(asList(2L), list);
+
+ list.addLong(3);
+ assertEquals(asList(2L, 3L), list);
+ }
+
+ public void testAddAll() {
+ assertEquals(0, list.size());
+
+ assertTrue(list.addAll(Collections.singleton(1L)));
+ assertEquals(1, list.size());
+ assertEquals(1L, (long) list.get(0));
+ assertEquals(1L, list.getLong(0));
+
+ assertTrue(list.addAll(asList(2L, 3L, 4L, 5L, 6L)));
+ assertEquals(asList(1L, 2L, 3L, 4L, 5L, 6L), list);
+
+ assertTrue(list.addAll(TERTIARY_LIST));
+ assertEquals(asList(1L, 2L, 3L, 4L, 5L, 6L, 1L, 2L, 3L), list);
+
+ assertFalse(list.addAll(Collections.<Long>emptyList()));
+ assertFalse(list.addAll(LongArrayList.emptyList()));
+ }
+
+ public void testRemove() {
+ list.addAll(TERTIARY_LIST);
+ assertEquals(1L, (long) list.remove(0));
+ assertEquals(asList(2L, 3L), list);
+
+ assertTrue(list.remove(Long.valueOf(3)));
+ assertEquals(asList(2L), list);
+
+ assertFalse(list.remove(Long.valueOf(3)));
+ assertEquals(asList(2L), list);
+
+ assertEquals(2L, (long) list.remove(0));
+ assertEquals(asList(), list);
+
+ try {
+ list.remove(-1);
+ fail();
+ } catch (IndexOutOfBoundsException e) {
+ // expected
+ }
+
+ try {
+ list.remove(0);
+ } catch (IndexOutOfBoundsException e) {
+ // expected
+ }
+ }
+
+ private void assertImmutable(LongArrayList list) {
+ if (list.contains(1L)) {
+ throw new RuntimeException("Cannot test the immutability of lists that contain 1.");
+ }
+
+ try {
+ list.add(1L);
+ fail();
+ } catch (UnsupportedOperationException e) {
+ // expected
+ }
+
+ try {
+ list.add(0, 1L);
+ fail();
+ } catch (UnsupportedOperationException e) {
+ // expected
+ }
+
+ try {
+ list.addAll(Collections.<Long>emptyList());
+ fail();
+ } catch (UnsupportedOperationException e) {
+ // expected
+ }
+
+ try {
+ list.addAll(Collections.singletonList(1L));
+ fail();
+ } catch (UnsupportedOperationException e) {
+ // expected
+ }
+
+ try {
+ list.addAll(new LongArrayList());
+ fail();
+ } catch (UnsupportedOperationException e) {
+ // expected
+ }
+
+ try {
+ list.addAll(UNARY_LIST);
+ fail();
+ } catch (UnsupportedOperationException e) {
+ // expected
+ }
+
+ try {
+ list.addAll(0, Collections.singleton(1L));
+ fail();
+ } catch (UnsupportedOperationException e) {
+ // expected
+ }
+
+ try {
+ list.addAll(0, UNARY_LIST);
+ fail();
+ } catch (UnsupportedOperationException e) {
+ // expected
+ }
+
+ try {
+ list.addAll(0, Collections.<Long>emptyList());
+ fail();
+ } catch (UnsupportedOperationException e) {
+ // expected
+ }
+
+ try {
+ list.addLong(0);
+ fail();
+ } catch (UnsupportedOperationException e) {
+ // expected
+ }
+
+ try {
+ list.clear();
+ fail();
+ } catch (UnsupportedOperationException e) {
+ // expected
+ }
+
+ try {
+ list.remove(1);
+ fail();
+ } catch (UnsupportedOperationException e) {
+ // expected
+ }
+
+ try {
+ list.remove(new Object());
+ fail();
+ } catch (UnsupportedOperationException e) {
+ // expected
+ }
+
+ try {
+ list.removeAll(Collections.<Long>emptyList());
+ fail();
+ } catch (UnsupportedOperationException e) {
+ // expected
+ }
+
+ try {
+ list.removeAll(Collections.singleton(1L));
+ fail();
+ } catch (UnsupportedOperationException e) {
+ // expected
+ }
+
+ try {
+ list.removeAll(UNARY_LIST);
+ fail();
+ } catch (UnsupportedOperationException e) {
+ // expected
+ }
+
+ try {
+ list.retainAll(Collections.<Long>emptyList());
+ fail();
+ } catch (UnsupportedOperationException e) {
+ // expected
+ }
+
+ try {
+ list.retainAll(Collections.singleton(1L));
+ fail();
+ } catch (UnsupportedOperationException e) {
+ // expected
+ }
+
+ try {
+ list.retainAll(UNARY_LIST);
+ fail();
+ } catch (UnsupportedOperationException e) {
+ // expected
+ }
+
+ try {
+ list.set(0, 0L);
+ fail();
+ } catch (UnsupportedOperationException e) {
+ // expected
+ }
+
+ try {
+ list.setLong(0, 0);
+ fail();
+ } catch (UnsupportedOperationException e) {
+ // expected
+ }
+ }
+
+ private static LongArrayList newImmutableLongArrayList(long... elements) {
+ LongArrayList list = new LongArrayList();
+ for (long element : elements) {
+ list.addLong(element);
+ }
+ list.makeImmutable();
+ return list;
+ }
+}
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