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/*
This code is derived from jgit (http://eclipse.org/jgit).
Copyright owners are documented in jgit'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.
*/
using System.Collections.Generic;
using NGit;
using NGit.Junit;
using NGit.Storage.File;
using NGit.Util;
using Sharpen;
namespace NGit.Storage.File
{
[NUnit.Framework.TestFixture]
public class WindowCacheGetTest : SampleDataRepositoryTestCase
{
private IList<WindowCacheGetTest.TestObject> toLoad;
/// <exception cref="System.Exception"></exception>
[NUnit.Framework.SetUp]
public override void SetUp()
{
base.SetUp();
toLoad = new AList<WindowCacheGetTest.TestObject>();
BufferedReader br = new BufferedReader(new InputStreamReader(new FileInputStream(
JGitTestUtil.GetTestResourceFile("all_packed_objects.txt")), Constants.CHARSET));
try
{
string line;
while ((line = br.ReadLine()) != null)
{
string[] parts = line.Split(" {1,}");
WindowCacheGetTest.TestObject o = new WindowCacheGetTest.TestObject(this);
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.AddItem(o);
}
}
finally
{
br.Close();
}
NUnit.Framework.Assert.AreEqual(96, toLoad.Count);
}
/// <exception cref="System.IO.IOException"></exception>
[NUnit.Framework.Test]
public virtual void TestCache_Defaults()
{
WindowCacheConfig cfg = new WindowCacheConfig();
WindowCache.Reconfigure(cfg);
DoCacheTests();
CheckLimits(cfg);
WindowCache cache = WindowCache.GetInstance();
NUnit.Framework.Assert.AreEqual(6, cache.GetOpenFiles());
NUnit.Framework.Assert.AreEqual(17346, cache.GetOpenBytes());
}
/// <exception cref="System.IO.IOException"></exception>
[NUnit.Framework.Test]
public virtual void TestCache_TooFewFiles()
{
WindowCacheConfig cfg = new WindowCacheConfig();
cfg.SetPackedGitOpenFiles(2);
WindowCache.Reconfigure(cfg);
DoCacheTests();
CheckLimits(cfg);
}
/// <exception cref="System.IO.IOException"></exception>
[NUnit.Framework.Test]
public virtual void TestCache_TooSmallLimit()
{
WindowCacheConfig cfg = new WindowCacheConfig();
cfg.SetPackedGitWindowSize(4096);
cfg.SetPackedGitLimit(4096);
WindowCache.Reconfigure(cfg);
DoCacheTests();
CheckLimits(cfg);
}
private void CheckLimits(WindowCacheConfig cfg)
{
WindowCache cache = WindowCache.GetInstance();
NUnit.Framework.Assert.IsTrue(cache.GetOpenFiles() <= cfg.GetPackedGitOpenFiles()
);
NUnit.Framework.Assert.IsTrue(cache.GetOpenBytes() <= cfg.GetPackedGitLimit());
NUnit.Framework.Assert.IsTrue(0 < cache.GetOpenFiles());
NUnit.Framework.Assert.IsTrue(0 < cache.GetOpenBytes());
}
/// <exception cref="System.IO.IOException"></exception>
private void DoCacheTests()
{
foreach (WindowCacheGetTest.TestObject o in toLoad)
{
ObjectLoader or = db.Open(o.id, o.type);
NUnit.Framework.Assert.IsNotNull(or);
NUnit.Framework.Assert.AreEqual(o.type, or.GetType());
}
}
private class TestObject
{
internal ObjectId id;
internal int type;
/// <exception cref="NGit.Errors.CorruptObjectException"></exception>
internal virtual void SetType(string typeStr)
{
byte[] typeRaw = Constants.Encode(typeStr + " ");
MutableInteger ptr = new MutableInteger();
this.type = Constants.DecodeTypeString(this.id, typeRaw, unchecked((byte)' '), ptr
);
}
internal TestObject(WindowCacheGetTest _enclosing)
{
this._enclosing = _enclosing;
}
private readonly WindowCacheGetTest _enclosing;
}
}
}
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