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- /*
- * Copyright (C) 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.internal.storage.file;
-
- import static java.nio.charset.StandardCharsets.UTF_8;
- import static org.junit.Assert.assertEquals;
- import static org.junit.Assert.assertNotNull;
- import static org.junit.Assert.assertTrue;
-
- import java.io.BufferedReader;
- import java.io.FileInputStream;
- import java.io.IOException;
- import java.io.InputStreamReader;
- import java.util.ArrayList;
- import java.util.List;
-
- import org.eclipse.jgit.errors.CorruptObjectException;
- import org.eclipse.jgit.junit.JGitTestUtil;
- import org.eclipse.jgit.lib.Constants;
- import org.eclipse.jgit.lib.ObjectId;
- import org.eclipse.jgit.lib.ObjectLoader;
- import org.eclipse.jgit.storage.file.WindowCacheConfig;
- import org.eclipse.jgit.test.resources.SampleDataRepositoryTestCase;
- import org.eclipse.jgit.util.MutableInteger;
- import org.junit.Before;
- import org.junit.Test;
-
- public class WindowCacheGetTest extends SampleDataRepositoryTestCase {
- private List<TestObject> toLoad;
-
- @Override
- @Before
- public void setUp() throws Exception {
- super.setUp();
-
- toLoad = new ArrayList<>();
- try (BufferedReader br = new BufferedReader(new InputStreamReader(
- new FileInputStream(JGitTestUtil
- .getTestResourceFile("all_packed_objects.txt")),
- UTF_8))) {
- String line;
- while ((line = br.readLine()) != null) {
- final String[] parts = line.split(" {1,}");
- final TestObject o = new TestObject();
- o.id = ObjectId.fromString(parts[0]);
- o.setType(parts[1]);
- // parts[2] is the inflate size
- // parts[3] is the size-in-pack
- // parts[4] is the offset in the pack
- toLoad.add(o);
- }
- }
- assertEquals(96, toLoad.size());
- }
-
- @Test
- public void testCache_Defaults() throws IOException {
- WindowCacheConfig cfg = new WindowCacheConfig();
- cfg.install();
- doCacheTests();
- checkLimits(cfg);
-
- final WindowCache cache = WindowCache.getInstance();
- assertEquals(6, cache.getOpenFiles());
- assertEquals(17346, cache.getOpenBytes());
- }
-
- @Test
- public void testCache_TooFewFiles() throws IOException {
- final WindowCacheConfig cfg = new WindowCacheConfig();
- cfg.setPackedGitOpenFiles(2);
- cfg.install();
- doCacheTests();
- checkLimits(cfg);
- }
-
- @Test
- public void testCache_TooSmallLimit() throws IOException {
- final WindowCacheConfig cfg = new WindowCacheConfig();
- cfg.setPackedGitWindowSize(4096);
- cfg.setPackedGitLimit(4096);
- cfg.install();
- doCacheTests();
- checkLimits(cfg);
- }
-
- private static void checkLimits(WindowCacheConfig cfg) {
- final WindowCache cache = WindowCache.getInstance();
- assertTrue(cache.getOpenFiles() <= cfg.getPackedGitOpenFiles());
- assertTrue(cache.getOpenBytes() <= cfg.getPackedGitLimit());
- assertTrue(0 < cache.getOpenFiles());
- assertTrue(0 < cache.getOpenBytes());
- }
-
- private void doCacheTests() throws IOException {
- for (TestObject o : toLoad) {
- final ObjectLoader or = db.open(o.id, o.type);
- assertNotNull(or);
- assertEquals(o.type, or.getType());
- }
- }
-
- private static class TestObject {
- ObjectId id;
-
- int type;
-
- void setType(String typeStr) throws CorruptObjectException {
- final byte[] typeRaw = Constants.encode(typeStr + " ");
- final MutableInteger ptr = new MutableInteger();
- type = Constants.decodeTypeString(id, typeRaw, (byte) ' ', ptr);
- }
- }
- }
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