public void DiskStorageManager_CanStoreAndLoad()
{
var filename = Path.GetTempFileName();
var storageManager = new DiskStorageManager(filename);
storageManager.DatafileSuffix = "data";
storageManager.IndexfileSuffix = "index";
storageManager.Overwrite = true;
storageManager.PageSize = 1024;
// a random but repeatable seed
var buffer = DataHelpers.GenerateSomeBytes(9087449);
var nAccess = new StorageManagerAccess(storageManager);
var page1 = nAccess.Store(-1, buffer);
var buffer2 = DataHelpers.GenerateSomeBytes(37900452);
var page2 = nAccess.Store(-1, buffer2);
Assert.True(buffer.SequenceEqual(nAccess.Load(page1)));
Assert.True(buffer2.SequenceEqual(nAccess.Load(page2)));
buffer = DataHelpers.GenerateSomeBytes(678000023);
page1 = nAccess.Store(page1, buffer);
Assert.True(buffer.SequenceEqual(nAccess.Load(page1)));
Assert.True(File.Exists(filename + ".data"));
Assert.True(File.Exists(filename + ".index"));
}
public void ManagedStorageManager_FlushSanityCheck()
{
// a random but repeatable seed
var buffer = DataHelpers.GenerateSomeBytes(8980443);
var nAccess = new StorageManagerAccess(new ManagedMemoryStorageManager());
var page1 = nAccess.Store(-1, buffer);
nAccess.Flush();
nAccess.Delete(page1);
}
public void ManagedStorageManager_CanStoreAndLoad()
{
// a random but repeatable seed
var buffer = DataHelpers.GenerateSomeBytes(10025668);
var nAccess = new StorageManagerAccess(new ManagedMemoryStorageManager());
var page1 = nAccess.Store(-1, buffer);
var buffer2 = DataHelpers.GenerateSomeBytes(10024938);
var page2 = nAccess.Store(-1, buffer2);
Assert.True(buffer.SequenceEqual(nAccess.Load(page1)));
Assert.True(buffer2.SequenceEqual(nAccess.Load(page2)));
buffer = DataHelpers.GenerateSomeBytes(10778910);
page1 = nAccess.Store(page1, buffer);
Assert.True(buffer.SequenceEqual(nAccess.Load(page1)));
}
public void MemoryStorageManager_CanStoreAndLoad()
{
var storageManager = new MemoryStorageManager();
// a random but repeatable seed
var buffer = DataHelpers.GenerateSomeBytes(9087449);
var nAccess = new StorageManagerAccess(storageManager);
var page1 = nAccess.Store(-1, buffer);
var buffer2 = DataHelpers.GenerateSomeBytes(37900452);
var page2 = nAccess.Store(-1, buffer2);
Assert.True(buffer.SequenceEqual(nAccess.Load(page1)));
Assert.True(buffer2.SequenceEqual(nAccess.Load(page2)));
buffer = DataHelpers.GenerateSomeBytes(678000023);
page1 = nAccess.Store(page1, buffer);
Assert.True(buffer.SequenceEqual(nAccess.Load(page1)));
}
public void ManagedStorageManager_CanStoreAndDelete()
{
// a random but repeatable seed
var buffer = DataHelpers.GenerateSomeBytes(213688);
var nAccess = new StorageManagerAccess(new ManagedMemoryStorageManager());
var page1 = nAccess.Store(-1, buffer);
var buffer2 = DataHelpers.GenerateSomeBytes(9048991);
var page2 = nAccess.Store(-1, buffer2);
Assert.True(buffer.SequenceEqual(nAccess.Load(page1)));
Assert.True(buffer2.SequenceEqual(nAccess.Load(page2)));
nAccess.Delete(page2);
Assert.Throws <IndexOutOfRangeException>(() => nAccess.Load(page2));
Assert.True(buffer.SequenceEqual(nAccess.Load(page1)));
nAccess.Delete(page1);
Assert.Throws <IndexOutOfRangeException>(() => nAccess.Load(page1));
Assert.Throws <IndexOutOfRangeException>(() => nAccess.Load(page2));
}
public void DiskStorageManager_ItStillWorksWithDefaults()
{
var filename = Path.GetTempFileName();
var storageManager = new DiskStorageManager(filename);
// a random but repeatable seed
var buffer = DataHelpers.GenerateSomeBytes(10927424);
var nAccess = new StorageManagerAccess(storageManager);
var page1 = nAccess.Store(-1, buffer);
var buffer2 = DataHelpers.GenerateSomeBytes(48202378);
var page2 = nAccess.Store(-1, buffer2);
Assert.True(buffer.SequenceEqual(nAccess.Load(page1)));
Assert.True(buffer2.SequenceEqual(nAccess.Load(page2)));
buffer = DataHelpers.GenerateSomeBytes(1234134);
page1 = nAccess.Store(page1, buffer);
Assert.True(buffer.SequenceEqual(nAccess.Load(page1)));
Assert.True(File.Exists(filename + "." + storageManager.DatafileSuffix));
Assert.True(File.Exists(filename + "." + storageManager.IndexfileSuffix));
}
public void DiskStorageManager_CanRestoreAndRead()
{
var filename = Path.GetTempFileName();
long page1, page2, page3, dataFileSize, indexFileSize;
byte[] buffer, buffer2, buffer3;
// a random but repeatable seed
buffer = DataHelpers.GenerateSomeBytes(165843578);
using (var storageManager = new DiskStorageManager(filename))
{
storageManager.DatafileSuffix = "data";
storageManager.IndexfileSuffix = "index";
storageManager.Overwrite = true;
storageManager.PageSize = 1024;
using (var nAccess = new StorageManagerAccess(storageManager))
{
page1 = nAccess.Store(-1, buffer);
buffer2 = DataHelpers.GenerateSomeBytes(46589725);
page2 = nAccess.Store(-1, buffer2);
Assert.True(buffer.SequenceEqual(nAccess.Load(page1)));
Assert.True(buffer2.SequenceEqual(nAccess.Load(page2)));
buffer = DataHelpers.GenerateSomeBytes(154967862);
page1 = nAccess.Store(page1, buffer);
Assert.True(buffer.SequenceEqual(nAccess.Load(page1)));
}
}
// now that the files are closed get our fs view
Assert.True(File.Exists(filename + ".data"));
dataFileSize = new FileInfo(filename + ".data").Length;
Assert.True(File.Exists(filename + ".index"));
indexFileSize = new FileInfo(filename + ".index").Length;
// ok now start again
using (var storageManager = new DiskStorageManager(filename))
{
storageManager.DatafileSuffix = "data";
storageManager.IndexfileSuffix = "index";
storageManager.Overwrite = false;
storageManager.PageSize = 1024;
using (var nAccess = new StorageManagerAccess(storageManager))
{
buffer3 = DataHelpers.GenerateSomeBytes(659873219);
page3 = nAccess.Store(-1, buffer3);
// make sure the files have not shrunk
Assert.True(new FileInfo(filename + ".data").Length >= dataFileSize);
Assert.True(new FileInfo(filename + ".index").Length >= indexFileSize);
// make sure all of our pages match
Assert.True(buffer.SequenceEqual(nAccess.Load(page1)));
Assert.True(buffer2.SequenceEqual(nAccess.Load(page2)));
Assert.True(buffer3.SequenceEqual(nAccess.Load(page3)));
}
}
}
