public void Ctor_CommandAndArgument_SetsProperty() {
FtpRequest req = new FtpRequest("CMD", "ARG");
Assert.Equal("CMD", req.Command);
Assert.Equal("ARG", req.Arguments);
}
public void Ctor_CommandOnly_SetsProperty() {
FtpRequest req = new FtpRequest("NOOP", null);
Assert.Equal("NOOP", req.Command);
}