public void ByteSwap_SwapBufferTest()
{
byte[] buffer = new byte[sizeof(ulong)];
byte[] buffer_bc = null;
ulong value_before = kBeforeValue;
ulong value_after = kAfterValue;
// UInt64
ByteSwap.ReplaceBytes(buffer, 0, value_before);
ByteSwap.SwapInt64(buffer, 0);
buffer_bc = BitConverter.GetBytes(value_after);
Assert.IsTrue(buffer_bc.EqualsArray(buffer));
// UInt32
value_before >>= 32;
value_after >>= 32;
Array.Clear(buffer, 0, buffer.Length);
ByteSwap.ReplaceBytes(buffer, 0, (uint)value_before);
ByteSwap.SwapInt32(buffer, 0);
buffer_bc = BitConverter.GetBytes((uint)value_after);
Assert.IsTrue(buffer_bc.EqualsArray(buffer));
// UInt16
value_before >>= 16;
value_after >>= 16;
Array.Clear(buffer, 0, buffer.Length);
ByteSwap.ReplaceBytes(buffer, 0, (ushort)value_before);
ByteSwap.SwapInt16(buffer, 0);
buffer_bc = BitConverter.GetBytes((ushort)value_after);
Assert.IsTrue(buffer_bc.EqualsArray(buffer));
// UInt40
value_before = kBeforeValueUInt40;
value_after = kAfterValueUInt40;
Array.Clear(buffer, 0, buffer.Length);
ByteSwap.ReplaceBytesUInt40(buffer, 0, value_before);
ByteSwap.SwapInt40(buffer, 0);
buffer_bc = BitConverter.GetBytes(value_after);
Assert.IsTrue(buffer_bc.EqualsArray(buffer));
// UInt24
value_before = kBeforeValueUInt24;
value_after = kAfterValueUInt24;
Array.Clear(buffer, 0, buffer.Length);
ByteSwap.ReplaceBytesUInt24(buffer, 0, (uint)value_before);
ByteSwap.SwapInt24(buffer, 0);
buffer_bc = BitConverter.GetBytes((uint)value_after);
Assert.IsTrue(buffer_bc.EqualsArray(buffer));
}
private static void ReplaceBytes(int bitCount, ulong value, byte[] buffer, ref int bufferIndex)
{
switch (bitCount)
{
case Bits.kInt16BitCount:
bufferIndex = ByteSwap.ReplaceBytes(buffer, bufferIndex, unchecked ((ushort)value));
break;
case Bits.kInt32BitCount:
bufferIndex = ByteSwap.ReplaceBytes(buffer, bufferIndex, unchecked ((uint)value));
break;
case Bits.kInt64BitCount:
bufferIndex = ByteSwap.ReplaceBytes(buffer, bufferIndex, unchecked ((ulong)value));
break;
}
}
