public void Large_Write_Writes_Correct_Size()
{
//Arrange
var functions = new Mock <Functions>();
var writeCalls = new List <(IntPtr bPointer, ulong offset, uint length)>();
var namespaceVirt = (IntPtr)7;
var dataStreamId = Guid.NewGuid();
var allocSize = (2 << 12);
IntPtr buffer = Marshal.AllocHGlobal(allocSize);
var aligned = AlignedBufferHandle.FromIntPtr(functions.Object, buffer);
IntPtr bufferEnd = buffer + allocSize - 1;
functions.Setup(f => f.PrjAllocateAlignedBuffer(namespaceVirt, (UIntPtr)allocSize)).Returns(aligned);
functions.Setup(f => f.PrjFreeAlignedBuffer(buffer));
functions.Setup(f => f.PrjWriteFileData(namespaceVirt, dataStreamId, It.IsAny <IntPtr>(), It.IsAny <ulong>(), It.IsAny <uint>()))
.Returns(HRESULT.S_OK)
.Callback((IntPtr ctx, Guid stream, IntPtr newBuffer, ulong offset, uint length) => writeCalls.Add((newBuffer, offset, length)));
int totalWriteSize = 16000;
//Act
var stream = new FileWriteStream(0, allocSize, namespaceVirt, dataStreamId, functions.Object);
stream.Write(Enumerable.Repeat <byte>(5, totalWriteSize).ToArray());
stream.Dispose();
//Assert
AssertWriteSizes(writeCalls, buffer, bufferEnd, totalWriteSize);
}
public void Unused_Stream_Writes_No_Data()
{
//Arrange
var functions = new Mock <Functions>();
var writeCalls = new List <(long, int)>();
var namespaceVirt = (IntPtr)7;
var dataStreamId = Guid.NewGuid();
var allocSize = (2 << 12);
IntPtr buffer = Marshal.AllocHGlobal(allocSize);
var aligned = AlignedBufferHandle.FromIntPtr(functions.Object, buffer);
functions.Setup(f => f.PrjAllocateAlignedBuffer(namespaceVirt, (UIntPtr)allocSize)).Returns(aligned);
functions.Setup(f => f.PrjFreeAlignedBuffer(buffer));
//Act
var stream = new FileWriteStream(0, allocSize, namespaceVirt, dataStreamId, functions.Object);
stream.Dispose();
//Assert
functions.VerifyAll();
functions.VerifyNoOtherCalls();
}