use std::fmt;
use std::io::{IoResult, MemReader, MemWriter};
use std::io::net::ip::SocketAddr;
use net::{NetworkStream, NetworkConnector};
pub struct MockStream {
pub read: MemReader,
pub write: MemWriter,
}
impl Clone for MockStream {
fn clone(&self) -> MockStream {
MockStream {
read: MemReader::new(self.read.get_ref().to_vec()),
write: MemWriter::from_vec(self.write.get_ref().to_vec()),
}
}
}
impl PartialEq for MockStream {
fn eq(&self, other: &MockStream) -> bool {
self.read.get_ref() == other.read.get_ref() &&
self.write.get_ref() == other.write.get_ref()
}
}
impl fmt::Show for MockStream {
fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
write!(f, "MockStream {{ read: {}, write: {} }}",
self.read.get_ref(), self.write.get_ref())
}
}
impl MockStream {
pub fn new() -> MockStream {
MockStream {
read: MemReader::new(vec![]),
write: MemWriter::new(),
}
}
pub fn with_input(input: &[u8]) -> MockStream {
MockStream {
read: MemReader::new(input.to_vec()),
write: MemWriter::new(),
}
}
}
impl Reader for MockStream {
fn read(&mut self, buf: &mut [u8]) -> IoResult<uint> {
self.read.read(buf)
}
}
impl Writer for MockStream {
fn write(&mut self, msg: &[u8]) -> IoResult<()> {
self.write.write(msg)
}
}
impl NetworkStream for MockStream {
fn peer_name(&mut self) -> IoResult<SocketAddr> {
Ok(from_str("127.0.0.1:1337").unwrap())
}
}
pub struct MockConnector;
impl NetworkConnector<MockStream> for MockConnector {
fn connect(&mut self, _host: &str, _port: u16, _scheme: &str) -> IoResult<MockStream> {
Ok(MockStream::new())
}
}
macro_rules! mock_connector (
($name:ident {
$($url:expr => $res:expr)*
}) => (
struct $name;
impl ::net::NetworkConnector<::mock::MockStream> for $name {
fn connect(&mut self, host: &str, port: u16, scheme: &str) -> ::std::io::IoResult<::mock::MockStream> {
use std::collections::HashMap;
debug!("MockStream::connect({}, {}, {})", host, port, scheme);
let mut map = HashMap::new();
$(map.insert($url, $res);)*
let key = format!("{}://{}", scheme, host);
match map.find(&&*key) {
Some(res) => Ok(::mock::MockStream {
write: ::std::io::MemWriter::new(),
read: ::std::io::MemReader::new(res.to_string().into_bytes())
}),
None => panic!("{} doesn't know url {}", stringify!($name), key)
}
}
}
)
);