| /* |
| * Copyright (C) 2012, 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.internal.storage.file; |
| |
| import static org.junit.Assert.assertEquals; |
| |
| import org.eclipse.jgit.internal.storage.file.BasePackBitmapIndex.StoredBitmap; |
| import org.eclipse.jgit.lib.ObjectId; |
| import org.junit.Test; |
| |
| import com.googlecode.javaewah.EWAHCompressedBitmap; |
| |
| public class StoredBitmapTest { |
| |
| @Test |
| public void testGetBitmapWithoutXor() { |
| EWAHCompressedBitmap b = bitmapOf(100); |
| StoredBitmap sb = newStoredBitmap(bitmapOf(100)); |
| assertEquals(b, sb.getBitmap()); |
| } |
| |
| @Test |
| public void testGetBitmapWithOneXor() { |
| StoredBitmap sb = newStoredBitmap(bitmapOf(100), bitmapOf(100, 101)); |
| assertEquals(bitmapOf(101), sb.getBitmap()); |
| } |
| |
| @Test |
| public void testGetBitmapWithThreeXor() { |
| StoredBitmap sb = newStoredBitmap( |
| bitmapOf(100), |
| bitmapOf(90, 101), |
| bitmapOf(100, 101), |
| bitmapOf(50)); |
| assertEquals(bitmapOf(50, 90), sb.getBitmap()); |
| assertEquals(bitmapOf(50, 90), sb.getBitmap()); |
| } |
| |
| private static final StoredBitmap newStoredBitmap( |
| EWAHCompressedBitmap... bitmaps) { |
| StoredBitmap sb = null; |
| for (EWAHCompressedBitmap bitmap : bitmaps) |
| sb = new StoredBitmap(ObjectId.zeroId(), bitmap, sb, 0); |
| return sb; |
| } |
| |
| private static final EWAHCompressedBitmap bitmapOf(int... bits) { |
| EWAHCompressedBitmap b = new EWAHCompressedBitmap(); |
| for (int bit : bits) |
| b.set(bit); |
| return b; |
| } |
| } |