| /* |
| * 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.lib; |
| |
| import static org.junit.Assert.assertEquals; |
| import static org.junit.Assert.assertFalse; |
| import static org.junit.Assert.assertNotNull; |
| import static org.junit.Assert.assertSame; |
| import static org.junit.Assert.assertTrue; |
| import static org.junit.Assert.fail; |
| |
| import java.util.Iterator; |
| import java.util.NoSuchElementException; |
| |
| import org.junit.Before; |
| import org.junit.Test; |
| |
| public class ObjectIdOwnerMapTest { |
| private MutableObjectId idBuf; |
| |
| private SubId id_1, id_2, id_3, id_a31, id_b31; |
| |
| @Before |
| public void init() { |
| idBuf = new MutableObjectId(); |
| id_1 = new SubId(id(1)); |
| id_2 = new SubId(id(2)); |
| id_3 = new SubId(id(3)); |
| id_a31 = new SubId(id(31)); |
| id_b31 = new SubId(id((1 << 8) + 31)); |
| } |
| |
| @Test |
| public void testEmptyMap() { |
| ObjectIdOwnerMap<SubId> m = new ObjectIdOwnerMap<SubId>(); |
| assertTrue(m.isEmpty()); |
| assertEquals(0, m.size()); |
| |
| Iterator<SubId> i = m.iterator(); |
| assertNotNull(i); |
| assertFalse(i.hasNext()); |
| |
| assertFalse(m.contains(id(1))); |
| } |
| |
| @Test |
| public void testAddGetAndContains() { |
| ObjectIdOwnerMap<SubId> m = new ObjectIdOwnerMap<SubId>(); |
| m.add(id_1); |
| m.add(id_2); |
| m.add(id_3); |
| m.add(id_a31); |
| m.add(id_b31); |
| assertFalse(m.isEmpty()); |
| assertEquals(5, m.size()); |
| |
| assertSame(id_1, m.get(id_1)); |
| assertSame(id_1, m.get(id(1))); |
| assertSame(id_1, m.get(id(1).copy())); |
| assertSame(id_2, m.get(id(2).copy())); |
| assertSame(id_3, m.get(id(3).copy())); |
| assertSame(id_a31, m.get(id(31).copy())); |
| assertSame(id_b31, m.get(id_b31.copy())); |
| |
| assertTrue(m.contains(id_1)); |
| } |
| |
| @Test |
| public void testClear() { |
| ObjectIdOwnerMap<SubId> m = new ObjectIdOwnerMap<SubId>(); |
| |
| m.add(id_1); |
| assertSame(id_1, m.get(id_1)); |
| |
| m.clear(); |
| assertTrue(m.isEmpty()); |
| assertEquals(0, m.size()); |
| |
| Iterator<SubId> i = m.iterator(); |
| assertNotNull(i); |
| assertFalse(i.hasNext()); |
| |
| assertFalse(m.contains(id(1))); |
| } |
| |
| @Test |
| public void testAddIfAbsent() { |
| ObjectIdOwnerMap<SubId> m = new ObjectIdOwnerMap<SubId>(); |
| m.add(id_1); |
| |
| assertSame(id_1, m.addIfAbsent(new SubId(id_1))); |
| assertEquals(1, m.size()); |
| |
| assertSame(id_2, m.addIfAbsent(id_2)); |
| assertEquals(2, m.size()); |
| assertSame(id_a31, m.addIfAbsent(id_a31)); |
| assertSame(id_b31, m.addIfAbsent(id_b31)); |
| |
| assertSame(id_a31, m.addIfAbsent(new SubId(id_a31))); |
| assertSame(id_b31, m.addIfAbsent(new SubId(id_b31))); |
| assertEquals(4, m.size()); |
| } |
| |
| @Test |
| public void testAddGrowsWithObjects() { |
| int n = 16384; |
| ObjectIdOwnerMap<SubId> m = new ObjectIdOwnerMap<SubId>(); |
| m.add(id_1); |
| for (int i = 32; i < n; i++) |
| m.add(new SubId(id(i))); |
| assertEquals(n - 32 + 1, m.size()); |
| |
| assertSame(id_1, m.get(id_1.copy())); |
| for (int i = 32; i < n; i++) |
| assertTrue(m.contains(id(i))); |
| } |
| |
| @Test |
| public void testAddIfAbsentGrowsWithObjects() { |
| int n = 16384; |
| ObjectIdOwnerMap<SubId> m = new ObjectIdOwnerMap<SubId>(); |
| m.add(id_1); |
| for (int i = 32; i < n; i++) |
| m.addIfAbsent(new SubId(id(i))); |
| assertEquals(n - 32 + 1, m.size()); |
| |
| assertSame(id_1, m.get(id_1.copy())); |
| for (int i = 32; i < n; i++) |
| assertTrue(m.contains(id(i))); |
| } |
| |
| @Test |
| public void testIterator() { |
| ObjectIdOwnerMap<SubId> m = new ObjectIdOwnerMap<SubId>(); |
| m.add(id_1); |
| m.add(id_2); |
| m.add(id_3); |
| |
| Iterator<SubId> i = m.iterator(); |
| assertTrue(i.hasNext()); |
| assertSame(id_1, i.next()); |
| assertTrue(i.hasNext()); |
| assertSame(id_2, i.next()); |
| assertTrue(i.hasNext()); |
| assertSame(id_3, i.next()); |
| |
| assertFalse(i.hasNext()); |
| try { |
| i.next(); |
| fail("did not fail on next with no next"); |
| } catch (NoSuchElementException expected) { |
| // OK |
| } |
| |
| i = m.iterator(); |
| assertSame(id_1, i.next()); |
| try { |
| i.remove(); |
| fail("did not fail on remove"); |
| } catch (UnsupportedOperationException expected) { |
| // OK |
| } |
| } |
| |
| private AnyObjectId id(int val) { |
| idBuf.setByte(0, val & 0xff); |
| idBuf.setByte(3, (val >>> 8) & 0xff); |
| return idBuf; |
| } |
| |
| private static class SubId extends ObjectIdOwnerMap.Entry { |
| SubId(AnyObjectId id) { |
| super(id); |
| } |
| } |
| } |