public void CopyData_NonReadableSource_ThrowsNotSupportedException()
{
var sourceStream = CreateFakeWriteOnlyStream();
var destinationStream = CreateFakeWriteOnlyStream();
void copyAction()
{
_ = StreamCopyDataExtensions.CopyData(sourceStream, destinationStream, 1);
}
_ = Assert.Throws <NotSupportedException>(copyAction);
}
public void CopyData_CorrectArguments_CopiesData(byte[] sourceArray, long copyLimit,
long expectedCopyCount, byte[] expectedDestinationArray)
{
using var sourceStream = new MemoryStream(sourceArray, false);
using var destinationStream = new MemoryStream();
var copyCount = StreamCopyDataExtensions.CopyData(sourceStream, destinationStream, copyLimit);
var destinationArray = destinationStream.ToArray();
Assert.Equal(expectedCopyCount, copyCount);
Assert.Equal(expectedDestinationArray, destinationArray);
}
public void CopyData_NullDestination_ThrowsArgumentNullException()
{
var sourceStream = CreateFakeReadOnlyStream();
var destinationStream = CreateNullStream();
void copyAction()
{
_ = StreamCopyDataExtensions.CopyData(sourceStream, destinationStream, 1);
}
_ = Assert.Throws <ArgumentNullException>(copyAction);
}
public void CopyData_ZeroNegativeBufferSize_ThrowsArgumentOutOfRangeException(int bufferSize)
{
var sourceStream = CreateFakeReadOnlyStream();
var destinationStream = CreateFakeWriteOnlyStream();
void copyAction()
{
_ = StreamCopyDataExtensions.CopyData(sourceStream, destinationStream, bufferSize);
}
_ = Assert.Throws <ArgumentOutOfRangeException>(copyAction);
}