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- /*
- * Copyright (C) 2008-2009, 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.dircache;
-
- import static org.junit.Assert.assertEquals;
- import static org.junit.Assert.assertFalse;
- import static org.junit.Assert.assertNotNull;
- import static org.junit.Assert.assertNotSame;
- import static org.junit.Assert.assertNull;
- import static org.junit.Assert.assertSame;
-
- import java.io.IOException;
-
- import org.eclipse.jgit.errors.CorruptObjectException;
- import org.eclipse.jgit.junit.RepositoryTestCase;
- import org.eclipse.jgit.lib.FileMode;
- import org.junit.Test;
-
- public class DirCacheTreeTest extends RepositoryTestCase {
- @Test
- public void testEmptyCache_NoCacheTree() throws Exception {
- final DirCache dc = db.readDirCache();
- assertNull(dc.getCacheTree(false));
- }
-
- @Test
- public void testEmptyCache_CreateEmptyCacheTree() throws Exception {
- final DirCache dc = db.readDirCache();
- final DirCacheTree tree = dc.getCacheTree(true);
- assertNotNull(tree);
- assertSame(tree, dc.getCacheTree(false));
- assertSame(tree, dc.getCacheTree(true));
- assertEquals("", tree.getNameString());
- assertEquals("", tree.getPathString());
- assertEquals(0, tree.getChildCount());
- assertEquals(0, tree.getEntrySpan());
- assertFalse(tree.isValid());
- }
-
- @Test
- public void testEmptyCache_Clear_NoCacheTree() throws Exception {
- final DirCache dc = db.readDirCache();
- final DirCacheTree tree = dc.getCacheTree(true);
- assertNotNull(tree);
- dc.clear();
- assertNull(dc.getCacheTree(false));
- assertNotSame(tree, dc.getCacheTree(true));
- }
-
- @Test
- public void testSingleSubtree() throws Exception {
- final DirCache dc = db.readDirCache();
-
- final String[] paths = { "a-", "a/b", "a/c", "a/d", "a0b" };
- final DirCacheEntry[] ents = new DirCacheEntry[paths.length];
- for (int i = 0; i < paths.length; i++) {
- ents[i] = new DirCacheEntry(paths[i]);
- ents[i].setFileMode(FileMode.REGULAR_FILE);
- }
- final int aFirst = 1;
- final int aLast = 3;
-
- final DirCacheBuilder b = dc.builder();
- for (DirCacheEntry ent : ents) {
- b.add(ent);
- }
- b.finish();
-
- assertNull(dc.getCacheTree(false));
- final DirCacheTree root = dc.getCacheTree(true);
- assertNotNull(root);
- assertSame(root, dc.getCacheTree(true));
- assertEquals("", root.getNameString());
- assertEquals("", root.getPathString());
- assertEquals(1, root.getChildCount());
- assertEquals(dc.getEntryCount(), root.getEntrySpan());
- assertFalse(root.isValid());
-
- final DirCacheTree aTree = root.getChild(0);
- assertNotNull(aTree);
- assertSame(aTree, root.getChild(0));
- assertEquals("a", aTree.getNameString());
- assertEquals("a/", aTree.getPathString());
- assertEquals(0, aTree.getChildCount());
- assertEquals(aLast - aFirst + 1, aTree.getEntrySpan());
- assertFalse(aTree.isValid());
- }
-
- @Test
- public void testTwoLevelSubtree() throws Exception {
- final DirCache dc = db.readDirCache();
-
- final String[] paths = { "a-", "a/b", "a/c/e", "a/c/f", "a/d", "a0b" };
- final DirCacheEntry[] ents = new DirCacheEntry[paths.length];
- for (int i = 0; i < paths.length; i++) {
- ents[i] = new DirCacheEntry(paths[i]);
- ents[i].setFileMode(FileMode.REGULAR_FILE);
- }
- final int aFirst = 1;
- final int aLast = 4;
- final int acFirst = 2;
- final int acLast = 3;
-
- final DirCacheBuilder b = dc.builder();
- for (DirCacheEntry ent : ents) {
- b.add(ent);
- }
- b.finish();
-
- assertNull(dc.getCacheTree(false));
- final DirCacheTree root = dc.getCacheTree(true);
- assertNotNull(root);
- assertSame(root, dc.getCacheTree(true));
- assertEquals("", root.getNameString());
- assertEquals("", root.getPathString());
- assertEquals(1, root.getChildCount());
- assertEquals(dc.getEntryCount(), root.getEntrySpan());
- assertFalse(root.isValid());
-
- final DirCacheTree aTree = root.getChild(0);
- assertNotNull(aTree);
- assertSame(aTree, root.getChild(0));
- assertEquals("a", aTree.getNameString());
- assertEquals("a/", aTree.getPathString());
- assertEquals(1, aTree.getChildCount());
- assertEquals(aLast - aFirst + 1, aTree.getEntrySpan());
- assertFalse(aTree.isValid());
-
- final DirCacheTree acTree = aTree.getChild(0);
- assertNotNull(acTree);
- assertSame(acTree, aTree.getChild(0));
- assertEquals("c", acTree.getNameString());
- assertEquals("a/c/", acTree.getPathString());
- assertEquals(0, acTree.getChildCount());
- assertEquals(acLast - acFirst + 1, acTree.getEntrySpan());
- assertFalse(acTree.isValid());
- }
-
- /**
- * We had bugs related to buffer size in the DirCache. This test creates an
- * index larger than the default BufferedInputStream buffer size. This made
- * the DirCache unable to read the extensions when index size exceeded the
- * buffer size (in some cases at least).
- *
- * @throws CorruptObjectException
- * @throws IOException
- */
- @Test
- public void testWriteReadTree() throws CorruptObjectException, IOException {
- final DirCache dc = db.lockDirCache();
-
- final String A = String.format("a%2000s", "a");
- final String B = String.format("b%2000s", "b");
- final String[] paths = { A + "-", A + "-" + B, A + "/" + B, A + "0" + B };
- final DirCacheEntry[] ents = new DirCacheEntry[paths.length];
- for (int i = 0; i < paths.length; i++) {
- ents[i] = new DirCacheEntry(paths[i]);
- ents[i].setFileMode(FileMode.REGULAR_FILE);
- }
-
- final DirCacheBuilder b = dc.builder();
- for (DirCacheEntry ent : ents) {
- b.add(ent);
- }
-
- b.commit();
- DirCache read = db.readDirCache();
-
- assertEquals(paths.length, read.getEntryCount());
- assertEquals(1, read.getCacheTree(true).getChildCount());
- }
- }
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