private static void TestVirtualDriveReWrite()
{
string fileName = VirtualDrive.VirtualFileName(
@"TestID3VirtualDrive\file1");
UnitTest.Test(!VirtualDrive.ExistsFile(fileName));
Stream outStream0 = VirtualDrive.OpenOutStream(fileName);
outStream0.WriteByte(0);
outStream0.WriteByte(1);
outStream0.WriteByte(2);
outStream0.Close();
UnitTest.Test(VirtualDrive.ExistsFile(fileName));
UnitTest.Test(VirtualDrive.FileLength(fileName) == 3);
Stream outStream1 = VirtualDrive.OpenOutStream(fileName);
outStream1.WriteByte(5);
outStream1.WriteByte(6);
outStream1.Close();
UnitTest.Test(VirtualDrive.ExistsFile(fileName));
UnitTest.Test(VirtualDrive.FileLength(fileName) == 3);
Stream inStream = VirtualDrive.OpenInStream(fileName);
UnitTest.Test(inStream.ReadByte() == 5);
UnitTest.Test(inStream.ReadByte() == 6);
UnitTest.Test(inStream.ReadByte() == 2);
inStream.Close();
}
public static void Store(string id, byte[] data)
{
using (Stream s = VirtualDrive.OpenOutStream(id))
{
if (!Object.ReferenceEquals(data, null))
{
s.Write(data, 0, data.Length);
}
}
}
private static void TestAccessObserverOpenWriteStream()
{
string fileName = VirtualDrive.VirtualFileName("myFile0.bin");
bool didOpenCalledBack = false;
bool didCloseCalledBack = false;
EventHandler <AccessObserver.AccessObserverEventArgs> freeHandler =
delegate(object sender, AccessObserver.AccessObserverEventArgs args)
{
UnitTest.Test(args.AffectedId == fileName);
UnitTest.Test(args.ObservedId == fileName);
UnitTest.Test(args.Type == AccessObserver.AccessType.Write);
UnitTest.Test(args.Request == AccessObserver.AccessRequest.FreeShared);
didCloseCalledBack = true;
VirtualDrive.ObserverFreeShared.Unregister(fileName);
UnitTest.Test(VirtualDrive.ObserverFreeShared.CountObservedIds == 0);
};
EventHandler <AccessObserver.AccessObserverEventArgs> lockHandler =
delegate(object sender, AccessObserver.AccessObserverEventArgs args)
{
UnitTest.Test(args.AffectedId == fileName);
UnitTest.Test(args.ObservedId == fileName);
UnitTest.Test(args.Type == AccessObserver.AccessType.Write);
UnitTest.Test(args.Request == AccessObserver.AccessRequest.LockExclusive);
didOpenCalledBack = true;
VirtualDrive.ObserverLockExclusive.Unregister(fileName);
UnitTest.Test(VirtualDrive.ObserverLockExclusive.CountObservedIds == 0);
VirtualDrive.ObserverFreeShared.Register(fileName, freeHandler);
};
VirtualDrive.ObserverLockExclusive.Register(fileName, lockHandler);
UnitTest.Test(!didOpenCalledBack);
UnitTest.Test(!didCloseCalledBack);
using (Stream stream = VirtualDrive.OpenOutStream(fileName))
{
UnitTest.Test(didOpenCalledBack);
UnitTest.Test(!didCloseCalledBack);
}
UnitTest.Test(didOpenCalledBack);
UnitTest.Test(didCloseCalledBack);
}