public void TestWritingBeyondEndBoundary()
{
using (var memory = new MemoryStream()) {
var buffer = new byte[] { (byte)'A' };
memory.Write(buffer, 0, buffer.Length);
memory.Position = 0;
using (var bounded = new BoundStream(memory, 0, 2, true)) {
buffer = new byte[] { (byte)'b', (byte)'c', (byte)'d' };
Assert.Throws <IOException> (() => bounded.Write(buffer, 0, buffer.Length));
}
}
}
public void TestCanReadWriteSeek()
{
var buffer = new byte[1024];
using (var bounded = new BoundStream(new CanReadWriteSeekStream(true, false, false, false), 0, -1, false)) {
Assert.IsTrue(bounded.CanRead);
Assert.IsFalse(bounded.CanWrite);
Assert.IsFalse(bounded.CanSeek);
Assert.IsFalse(bounded.CanTimeout);
Assert.Throws <NotImplementedException> (() => bounded.Read(buffer, 0, buffer.Length));
Assert.Throws <NotSupportedException> (() => bounded.Write(buffer, 0, buffer.Length));
Assert.Throws <NotSupportedException> (() => bounded.Seek(0, SeekOrigin.End));
}
using (var bounded = new BoundStream(new CanReadWriteSeekStream(false, true, false, false), 0, -1, false)) {
Assert.IsFalse(bounded.CanRead);
Assert.IsTrue(bounded.CanWrite);
Assert.IsFalse(bounded.CanSeek);
Assert.IsFalse(bounded.CanTimeout);
Assert.Throws <NotSupportedException> (() => bounded.Read(buffer, 0, buffer.Length));
Assert.Throws <NotImplementedException> (() => bounded.Write(buffer, 0, buffer.Length));
Assert.Throws <NotSupportedException> (() => bounded.Seek(0, SeekOrigin.End));
}
using (var bounded = new BoundStream(new CanReadWriteSeekStream(false, false, true, false), 0, -1, false)) {
Assert.IsFalse(bounded.CanRead);
Assert.IsFalse(bounded.CanWrite);
Assert.IsTrue(bounded.CanSeek);
Assert.IsFalse(bounded.CanTimeout);
Assert.Throws <NotSupportedException> (() => bounded.Read(buffer, 0, buffer.Length));
Assert.Throws <NotSupportedException> (() => bounded.Write(buffer, 0, buffer.Length));
Assert.Throws <NotImplementedException> (() => bounded.Seek(0, SeekOrigin.End));
}
}
