public void WriteDataSizeTest()
{
// These tests are for little endian.
Assert.IsTrue(BitConverter.IsLittleEndian);
MemoryStream stream = new MemoryStream(32);
BinaryWriter writer = new BinaryWriter(stream);
int written;
stream.SetLength(0);
written = BinaryWriterExtensions.Write(writer, (byte)0xCA, DataSize.Bit256);
Assert.AreEqual(32, written);
Assert.AreEqual(new byte[] {
0xCA, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00
}, stream.ToArray());
stream.SetLength(0);
written = BinaryWriterExtensions.Write(writer, (ushort)0xCAFE, DataSize.Bit128);
Assert.AreEqual(16, written);
Assert.AreEqual(new byte[] {
0xFE, 0xCA, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00
}, stream.ToArray());
stream.SetLength(0);
written = BinaryWriterExtensions.Write(writer, (uint)0xCAFEBABE, DataSize.Bit64);
Assert.AreEqual(8, written);
Assert.AreEqual(new byte[] {
0xBE, 0xBA, 0xFE, 0xCA,
0x00, 0x00, 0x00, 0x00
}, stream.ToArray());
stream.SetLength(0);
written = BinaryWriterExtensions.Write(writer, (ulong)0xCAFEBABEDECEA5ED, DataSize.Bit64);
Assert.AreEqual(8, written);
Assert.AreEqual(new byte[] {
0xED, 0xA5, 0xCE, 0xDE,
0xBE, 0xBA, 0xFE, 0xCA
}, stream.ToArray());
stream.SetLength(0);
written = BinaryWriterExtensions.Write(writer, (ulong)0xCAFEBABEDECEA5ED, DataSize.Bit32);
Assert.AreEqual(4, written);
Assert.AreEqual(new byte[] {
0xED, 0xA5, 0xCE, 0xDE
}, stream.ToArray());
stream.SetLength(0);
written = BinaryWriterExtensions.Write(writer, (ulong)0xCAFEBABEDECEA5ED, DataSize.Bit16);
Assert.AreEqual(2, written);
Assert.AreEqual(new byte[] {
0xED, 0xA5
}, stream.ToArray());
stream.SetLength(0);
written = BinaryWriterExtensions.Write(writer, (ulong)0xCAFEBABEDECEA5ED, DataSize.Bit8);
Assert.AreEqual(1, written);
Assert.AreEqual(new byte[] {
0xED
}, stream.ToArray());
stream.SetLength(0);
written = BinaryWriterExtensions.Write(writer, (ulong)0xCAFEBABEDECEA5ED, DataSize.Bit8);
Assert.AreEqual(1, written);
Assert.AreEqual(new byte[] {
0xED
}, stream.ToArray());
stream.SetLength(0);
written = BinaryWriterExtensions.Write(writer,
new Int128((ulong)0xCAFEBABEDECEA5ED, unchecked ((long)0xF0CA112E10CA112E)), DataSize.Bit256);
Assert.AreEqual(32, written);
Assert.AreEqual(new byte[] {
0xED, 0xA5, 0xCE, 0xDE,
0xBE, 0xBA, 0xFE, 0xCA,
0x2E, 0x11, 0xCA, 0x10,
0x2E, 0x11, 0xCA, 0xF0,
0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00
}, stream.ToArray());
}
private void Write(int value)
{
BinaryWriterExtensions.Write7BitEncodedInt(binaryWriter, value);
}
