public void TestReadWrite()
{
using (MemoryStream ms = new MemoryStream(SequencedBytes(20)))
using (Stream s = new ClampedStream(ms, 10, 5))
{
byte[] test = new byte[200];
Assert.AreEqual(5, s.Read(test, 0, 200));
Array.Resize(ref test, 5);
Assert.AreEqual(new byte[] { 10, 11, 12, 13, 14 }, test);
s.Position = 0;
s.Write(new byte[] { 1, 2, 3, 4, 5 }, 0, 5);
s.Position = 0;
Assert.AreEqual(new byte[] { 1, 2, 3, 4, 5 }, IOStream.ReadAllBytes(s));
}
}
public void TestPosition()
{
using (Stream s = new ClampedStream(new MemoryStream(SequencedBytes(20), false), 2, 10))
{
Assert.AreEqual(0, s.Position);
Assert.AreEqual(2, s.ReadByte());
s.Position = 0;
Assert.AreEqual(0, s.Position);
Assert.AreEqual(2, s.ReadByte());
s.Position = 10;
Assert.AreEqual(-1, s.ReadByte());
Assert.AreEqual(10, s.Position);
Assert.AreEqual(0, s.Read(new byte[10], 0, 10));
Assert.AreEqual(10, s.Position);
}
}