| /* |
| * Copyright (C) 2008, 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.treewalk; |
| |
| 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 org.eclipse.jgit.lib.ObjectId; |
| import org.eclipse.jgit.lib.ObjectReader; |
| import org.eclipse.jgit.lib.RepositoryTestCase; |
| import org.junit.Test; |
| |
| public class EmptyTreeIteratorTest extends RepositoryTestCase { |
| @Test |
| public void testAtEOF() throws Exception { |
| final EmptyTreeIterator etp = new EmptyTreeIterator(); |
| assertTrue(etp.first()); |
| assertTrue(etp.eof()); |
| } |
| |
| @Test |
| public void testCreateSubtreeIterator() throws Exception { |
| final EmptyTreeIterator etp = new EmptyTreeIterator(); |
| final ObjectReader reader = db.newObjectReader(); |
| final AbstractTreeIterator sub = etp.createSubtreeIterator(reader); |
| assertNotNull(sub); |
| assertTrue(sub.first()); |
| assertTrue(sub.eof()); |
| assertTrue(sub instanceof EmptyTreeIterator); |
| } |
| |
| @Test |
| public void testEntryObjectId() throws Exception { |
| final EmptyTreeIterator etp = new EmptyTreeIterator(); |
| assertSame(ObjectId.zeroId(), etp.getEntryObjectId()); |
| assertNotNull(etp.idBuffer()); |
| assertEquals(0, etp.idOffset()); |
| assertEquals(ObjectId.zeroId(), ObjectId.fromRaw(etp.idBuffer())); |
| } |
| |
| @Test |
| public void testNextDoesNothing() throws Exception { |
| final EmptyTreeIterator etp = new EmptyTreeIterator(); |
| etp.next(1); |
| assertTrue(etp.first()); |
| assertTrue(etp.eof()); |
| assertEquals(ObjectId.zeroId(), ObjectId.fromRaw(etp.idBuffer())); |
| |
| etp.next(1); |
| assertTrue(etp.first()); |
| assertTrue(etp.eof()); |
| assertEquals(ObjectId.zeroId(), ObjectId.fromRaw(etp.idBuffer())); |
| } |
| |
| @Test |
| public void testBackDoesNothing() throws Exception { |
| final EmptyTreeIterator etp = new EmptyTreeIterator(); |
| etp.back(1); |
| assertTrue(etp.first()); |
| assertTrue(etp.eof()); |
| assertEquals(ObjectId.zeroId(), ObjectId.fromRaw(etp.idBuffer())); |
| |
| etp.back(1); |
| assertTrue(etp.first()); |
| assertTrue(etp.eof()); |
| assertEquals(ObjectId.zeroId(), ObjectId.fromRaw(etp.idBuffer())); |
| } |
| |
| @Test |
| public void testStopWalkCallsParent() throws Exception { |
| final boolean called[] = new boolean[1]; |
| assertFalse(called[0]); |
| |
| final EmptyTreeIterator parent = new EmptyTreeIterator() { |
| @Override |
| public void stopWalk() { |
| called[0] = true; |
| } |
| }; |
| final ObjectReader reader = db.newObjectReader(); |
| parent.createSubtreeIterator(reader).stopWalk(); |
| assertTrue(called[0]); |
| } |
| } |