public void TestCanReadWriteSeekTimeout()
{
var buffer = new byte[1024];
using (var filtered = new FilteredStream(new CanReadWriteSeekStream(true, false, false, false))) {
Assert.IsTrue(filtered.CanRead);
Assert.IsFalse(filtered.CanWrite);
Assert.IsFalse(filtered.CanSeek);
Assert.IsFalse(filtered.CanTimeout);
Assert.Throws <NotImplementedException> (() => filtered.Read(buffer, 0, buffer.Length));
Assert.Throws <NotSupportedException> (() => filtered.Write(buffer, 0, buffer.Length));
Assert.Throws <NotSupportedException> (() => filtered.Seek(0, SeekOrigin.End));
}
using (var filtered = new FilteredStream(new CanReadWriteSeekStream(false, true, false, false))) {
Assert.IsFalse(filtered.CanRead);
Assert.IsTrue(filtered.CanWrite);
Assert.IsFalse(filtered.CanSeek);
Assert.IsFalse(filtered.CanTimeout);
Assert.Throws <NotSupportedException> (() => filtered.Read(buffer, 0, buffer.Length));
Assert.Throws <NotImplementedException> (() => filtered.Write(buffer, 0, buffer.Length));
Assert.Throws <NotSupportedException> (() => filtered.Seek(0, SeekOrigin.End));
}
using (var filtered = new FilteredStream(new CanReadWriteSeekStream(false, false, true, false))) {
Assert.IsFalse(filtered.CanRead);
Assert.IsFalse(filtered.CanWrite);
Assert.IsFalse(filtered.CanSeek); // FilteredStream can never seek
Assert.IsFalse(filtered.CanTimeout);
Assert.Throws <NotSupportedException> (() => filtered.Read(buffer, 0, buffer.Length));
Assert.Throws <NotSupportedException> (() => filtered.Write(buffer, 0, buffer.Length));
Assert.Throws <NotSupportedException> (() => filtered.Seek(0, SeekOrigin.End)); // FilteredStream can never seek
}
}
