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- /*
- * 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.junit.RepositoryTestCase;
- import org.eclipse.jgit.lib.ObjectId;
- import org.eclipse.jgit.lib.ObjectReader;
- 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]);
- }
- }
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