public static async Task CopyToAsyncTest()
{
byte[] testData = ArrayHelpers.CreateByteArray(8192);
using (var manager = new UmsManager(FileAccess.Read, testData))
{
UnmanagedMemoryStream ums = manager.Stream;
UmsTests.ReadUmsInvariants(ums);
MemoryStream destination = new MemoryStream();
destination.Position = 0;
await ums.CopyToAsync(destination);
Assert.Equal(testData, destination.ToArray());
destination.Position = 0;
await ums.CopyToAsync(destination, 2);
Assert.Equal(testData, destination.ToArray());
destination.Position = 0;
await ums.CopyToAsync(destination, 0x1000, new CancellationTokenSource().Token);
Assert.Equal(testData, destination.ToArray());
await Assert.ThrowsAnyAsync <OperationCanceledException>(() => ums.CopyToAsync(destination, 0x1000, new CancellationToken(true)));
}
// copy to disposed stream should throw
using (var manager = new UmsManager(FileAccess.Read, testData))
{
UnmanagedMemoryStream ums = manager.Stream;
UmsTests.ReadUmsInvariants(ums);
MemoryStream destination = new MemoryStream();
destination.Dispose();
await Assert.ThrowsAsync <ObjectDisposedException>(() => ums.CopyToAsync(destination));
}
// copy from disposed stream should throw
using (var manager = new UmsManager(FileAccess.Read, testData))
{
UnmanagedMemoryStream ums = manager.Stream;
UmsTests.ReadUmsInvariants(ums);
ums.Dispose();
MemoryStream destination = new MemoryStream();
await Assert.ThrowsAsync <ObjectDisposedException>(() => ums.CopyToAsync(destination));
}
// cpoying to non-writeable stream should throw
using (var manager = new UmsManager(FileAccess.Read, testData))
{
UnmanagedMemoryStream ums = manager.Stream;
UmsTests.ReadUmsInvariants(ums);
MemoryStream destination = new MemoryStream(new byte[0], false);
await Assert.ThrowsAsync <NotSupportedException>(() => ums.CopyToAsync(destination));
}
// copying from non-readable stream should throw
using (var manager = new UmsManager(FileAccess.Write, testData))
{
UnmanagedMemoryStream ums = manager.Stream;
UmsTests.WriteUmsInvariants(ums);
MemoryStream destination = new MemoryStream(new byte[0], false);
await Assert.ThrowsAsync <NotSupportedException>(() => ums.CopyToAsync(destination));
}
}
public static void CopyToTest()
{
byte[] testData = ArrayHelpers.CreateByteArray(8192);
using (var manager = new UmsManager(FileAccess.Read, testData))
{
UnmanagedMemoryStream ums = manager.Stream;
UmsTests.ReadUmsInvariants(ums);
MemoryStream destination = new MemoryStream();
destination.Position = 0;
ums.CopyTo(destination);
Assert.Equal(testData, destination.ToArray());
destination.Position = 0;
ums.CopyTo(destination, 1);
Assert.Equal(testData, destination.ToArray());
}
// copy to disposed stream should throw
using (var manager = new UmsManager(FileAccess.Read, testData))
{
UnmanagedMemoryStream ums = manager.Stream;
UmsTests.ReadUmsInvariants(ums);
MemoryStream destination = new MemoryStream();
destination.Dispose();
Assert.Throws <ObjectDisposedException>(() => ums.CopyTo(destination));
}
// copy from disposed stream should throw
using (var manager = new UmsManager(FileAccess.Read, testData))
{
UnmanagedMemoryStream ums = manager.Stream;
UmsTests.ReadUmsInvariants(ums);
ums.Dispose();
MemoryStream destination = new MemoryStream();
Assert.Throws <ObjectDisposedException>(() => ums.CopyTo(destination));
}
// copying to non-writeable stream should throw
using (var manager = new UmsManager(FileAccess.Read, testData))
{
UnmanagedMemoryStream ums = manager.Stream;
UmsTests.ReadUmsInvariants(ums);
MemoryStream destination = new MemoryStream(new byte[0], false);
Assert.Throws <NotSupportedException>(() => ums.CopyTo(destination));
}
// copying from non-readable stream should throw
using (var manager = new UmsManager(FileAccess.Write, testData))
{
UnmanagedMemoryStream ums = manager.Stream;
UmsTests.WriteUmsInvariants(ums);
MemoryStream destination = new MemoryStream(new byte[0], false);
Assert.Throws <NotSupportedException>(() => ums.CopyTo(destination));
}
}