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- /*
- * Copyright (C) 2011, Google Inc.
- * and other copyright owners as documented in the project's IP log.
- *
- * This program and the accompanying materials are made available
- * under the terms of the Eclipse Distribution License v1.0 which
- * accompanies this distribution, is reproduced below, and is
- * available at http://www.eclipse.org/org/documents/edl-v10.php
- *
- * All rights reserved.
- *
- * 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 the Eclipse Foundation, 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 org.eclipse.jgit.util;
-
- import static org.junit.Assert.assertEquals;
- import static org.junit.Assert.assertFalse;
- import static org.junit.Assert.assertSame;
- import static org.junit.Assert.assertTrue;
-
- import java.util.Iterator;
-
- import org.junit.Test;
-
- public class BlockListTest {
- @Test
- public void testEmptyList() {
- BlockList<String> empty;
-
- empty = new BlockList<>();
- assertEquals(0, empty.size());
- assertTrue(empty.isEmpty());
- assertFalse(empty.iterator().hasNext());
-
- empty = new BlockList<>(0);
- assertEquals(0, empty.size());
- assertTrue(empty.isEmpty());
- assertFalse(empty.iterator().hasNext());
-
- empty = new BlockList<>(1);
- assertEquals(0, empty.size());
- assertTrue(empty.isEmpty());
- assertFalse(empty.iterator().hasNext());
-
- empty = new BlockList<>(64);
- assertEquals(0, empty.size());
- assertTrue(empty.isEmpty());
- assertFalse(empty.iterator().hasNext());
- }
-
- @Test
- public void testGet() {
- BlockList<String> list = new BlockList<>(4);
-
- try {
- list.get(-1);
- } catch (IndexOutOfBoundsException badIndex) {
- assertEquals(String.valueOf(-1), badIndex.getMessage());
- }
-
- try {
- list.get(0);
- } catch (IndexOutOfBoundsException badIndex) {
- assertEquals(String.valueOf(0), badIndex.getMessage());
- }
-
- try {
- list.get(4);
- } catch (IndexOutOfBoundsException badIndex) {
- assertEquals(String.valueOf(4), badIndex.getMessage());
- }
-
- String fooStr = "foo";
- String barStr = "bar";
- String foobarStr = "foobar";
-
- list.add(fooStr);
- list.add(barStr);
- list.add(foobarStr);
-
- assertSame(fooStr, list.get(0));
- assertSame(barStr, list.get(1));
- assertSame(foobarStr, list.get(2));
-
- try {
- list.get(3);
- } catch (IndexOutOfBoundsException badIndex) {
- assertEquals(String.valueOf(3), badIndex.getMessage());
- }
- }
-
- @Test
- public void testSet() {
- BlockList<String> list = new BlockList<>(4);
-
- try {
- list.set(-1, "foo");
- } catch (IndexOutOfBoundsException badIndex) {
- assertEquals(String.valueOf(-1), badIndex.getMessage());
- }
-
- try {
- list.set(0, "foo");
- } catch (IndexOutOfBoundsException badIndex) {
- assertEquals(String.valueOf(0), badIndex.getMessage());
- }
-
- try {
- list.set(4, "foo");
- } catch (IndexOutOfBoundsException badIndex) {
- assertEquals(String.valueOf(4), badIndex.getMessage());
- }
-
- String fooStr = "foo";
- String barStr = "bar";
- String foobarStr = "foobar";
-
- list.add(fooStr);
- list.add(barStr);
- list.add(foobarStr);
-
- assertSame(fooStr, list.get(0));
- assertSame(barStr, list.get(1));
- assertSame(foobarStr, list.get(2));
-
- assertSame(fooStr, list.set(0, barStr));
- assertSame(barStr, list.set(1, fooStr));
-
- assertSame(barStr, list.get(0));
- assertSame(fooStr, list.get(1));
-
- try {
- list.set(3, "bar");
- } catch (IndexOutOfBoundsException badIndex) {
- assertEquals(String.valueOf(3), badIndex.getMessage());
- }
- }
-
- @Test
- public void testAddToEnd() {
- BlockList<Integer> list = new BlockList<>(4);
- int cnt = BlockList.BLOCK_SIZE * 3;
-
- for (int i = 0; i < cnt; i++)
- list.add(Integer.valueOf(42 + i));
- assertEquals(cnt, list.size());
-
- for (int i = 0; i < cnt; i++)
- assertEquals(Integer.valueOf(42 + i), list.get(i));
-
- list.clear();
- assertEquals(0, list.size());
- assertTrue(list.isEmpty());
-
- for (int i = 0; i < cnt; i++)
- list.add(i, Integer.valueOf(42 + i));
- assertEquals(cnt, list.size());
-
- for (int i = 0; i < cnt; i++)
- assertEquals(Integer.valueOf(42 + i), list.get(i));
- }
-
- @Test
- public void testAddSlowPath() {
- BlockList<String> list = new BlockList<>(4);
-
- String fooStr = "foo";
- String barStr = "bar";
- String foobarStr = "foobar";
- String firstStr = "first";
- String zeroStr = "zero";
-
- list.add(fooStr);
- list.add(barStr);
- list.add(foobarStr);
- assertEquals(3, list.size());
-
- list.add(1, firstStr);
- assertEquals(4, list.size());
- assertSame(fooStr, list.get(0));
- assertSame(firstStr, list.get(1));
- assertSame(barStr, list.get(2));
- assertSame(foobarStr, list.get(3));
-
- list.add(0, zeroStr);
- assertEquals(5, list.size());
- assertSame(zeroStr, list.get(0));
- assertSame(fooStr, list.get(1));
- assertSame(firstStr, list.get(2));
- assertSame(barStr, list.get(3));
- assertSame(foobarStr, list.get(4));
- }
-
- @Test
- public void testRemoveFromEnd() {
- BlockList<String> list = new BlockList<>(4);
-
- String fooStr = "foo";
- String barStr = "bar";
- String foobarStr = "foobar";
-
- list.add(fooStr);
- list.add(barStr);
- list.add(foobarStr);
-
- assertSame(foobarStr, list.remove(2));
- assertEquals(2, list.size());
-
- assertSame(barStr, list.remove(1));
- assertEquals(1, list.size());
-
- assertSame(fooStr, list.remove(0));
- assertEquals(0, list.size());
- }
-
- @Test
- public void testRemoveSlowPath() {
- BlockList<String> list = new BlockList<>(4);
-
- String fooStr = "foo";
- String barStr = "bar";
- String foobarStr = "foobar";
-
- list.add(fooStr);
- list.add(barStr);
- list.add(foobarStr);
-
- assertSame(barStr, list.remove(1));
- assertEquals(2, list.size());
- assertSame(fooStr, list.get(0));
- assertSame(foobarStr, list.get(1));
-
- assertSame(fooStr, list.remove(0));
- assertEquals(1, list.size());
- assertSame(foobarStr, list.get(0));
-
- assertSame(foobarStr, list.remove(0));
- assertEquals(0, list.size());
- }
-
- @Test
- public void testAddRemoveAdd() {
- BlockList<Integer> list = new BlockList<>();
- for (int i = 0; i < BlockList.BLOCK_SIZE + 1; i++)
- list.add(Integer.valueOf(i));
- assertEquals(Integer.valueOf(BlockList.BLOCK_SIZE),
- list.remove(list.size() - 1));
- assertEquals(Integer.valueOf(BlockList.BLOCK_SIZE - 1),
- list.remove(list.size() - 1));
- assertTrue(list.add(Integer.valueOf(1)));
- assertEquals(Integer.valueOf(1), list.get(list.size() - 1));
- }
-
- @Test
- public void testAddAllFromOtherList() {
- BlockList<Integer> src = new BlockList<>(4);
- int cnt = BlockList.BLOCK_SIZE * 2;
-
- for (int i = 0; i < cnt; i++)
- src.add(Integer.valueOf(42 + i));
- src.add(Integer.valueOf(1));
-
- BlockList<Integer> dst = new BlockList<>(4);
- dst.add(Integer.valueOf(255));
- dst.addAll(src);
- assertEquals(cnt + 2, dst.size());
- for (int i = 0; i < cnt; i++)
- assertEquals(Integer.valueOf(42 + i), dst.get(i + 1));
- assertEquals(Integer.valueOf(1), dst.get(dst.size() - 1));
- }
-
- @Test
- public void testFastIterator() {
- BlockList<Integer> list = new BlockList<>(4);
- int cnt = BlockList.BLOCK_SIZE * 3;
-
- for (int i = 0; i < cnt; i++)
- list.add(Integer.valueOf(42 + i));
- assertEquals(cnt, list.size());
-
- Iterator<Integer> itr = list.iterator();
- for (int i = 0; i < cnt; i++) {
- assertTrue(itr.hasNext());
- assertEquals(Integer.valueOf(42 + i), itr.next());
- }
- assertFalse(itr.hasNext());
- }
-
- @Test
- public void testAddRejectsBadIndexes() {
- BlockList<Integer> list = new BlockList<>(4);
- list.add(Integer.valueOf(41));
-
- try {
- list.add(-1, Integer.valueOf(42));
- } catch (IndexOutOfBoundsException badIndex) {
- assertEquals(String.valueOf(-1), badIndex.getMessage());
- }
-
- try {
- list.add(4, Integer.valueOf(42));
- } catch (IndexOutOfBoundsException badIndex) {
- assertEquals(String.valueOf(4), badIndex.getMessage());
- }
- }
-
- @Test
- public void testRemoveRejectsBadIndexes() {
- BlockList<Integer> list = new BlockList<>(4);
- list.add(Integer.valueOf(41));
-
- try {
- list.remove(-1);
- } catch (IndexOutOfBoundsException badIndex) {
- assertEquals(String.valueOf(-1), badIndex.getMessage());
- }
-
- try {
- list.remove(4);
- } catch (IndexOutOfBoundsException badIndex) {
- assertEquals(String.valueOf(4), badIndex.getMessage());
- }
- }
- }
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