diff --git a/util/src/network/connection.rs b/util/src/network/connection.rs
index f553dbb54..fa6bb7f9a 100644
--- a/util/src/network/connection.rs
+++ b/util/src/network/connection.rs
@@ -22,7 +22,7 @@ use tiny_keccak::Keccak;
 const ENCRYPTED_HEADER_LEN: usize = 32;
 const RECIEVE_PAYLOAD_TIMEOUT: u64 = 30000;
 
-pub trait GenericSocket : Sized + Read + Write {
+pub trait GenericSocket : Read + Write {
 }
 
 impl GenericSocket for TcpStream {
diff --git a/util/src/network/tests.rs b/util/src/network/tests.rs
index 06966abb5..b25943531 100644
--- a/util/src/network/tests.rs
+++ b/util/src/network/tests.rs
@@ -20,6 +20,61 @@ impl Default for TestProtocol {
 	}
 }
 
+struct TestSocket {
+	read_buffer: Vec<u8>,
+	write_buffer: Vec<u8>,
+	cursor: usize,
+}
+
+impl TestSocket {
+	fn new() -> TestSocket {
+		TestSocket {
+			read_buffer: vec![],
+			write_buffer: vec![]
+		}
+	}
+}
+
+impl Read for TestSocket {
+	fn read(&mut self, buf: &mut [u8]) -> Result<usize> {
+		let end_position = cmp::min(self.read_buffer.len(), self.cursor+buf.len());
+		let len = cmp::max(self.end_position - self.cursor, 0);
+		match len {
+			0 => Ok(0),
+			_ => {
+				bytes::copy_memory(buf, &mut self.read_buffer[cursor..len]);
+				self.cursor = self.cursor + buf.len();
+				Ok(len);
+			}
+		}
+	}
+}
+
+impl Write for TestSocket {
+	fn write(&mut self, buf: &mut [u8]) -> Result<u8> {
+		self.write_buffer.extend(buf.iter().cloned());
+		Ok(buf.len());
+	}
+}
+
+impl GenericSocket for TestSocket {}
+
+type TestConnection = GenericConnection<TestSocket>;
+
+impl TestConnection {
+	pub fn new() -> Connection {
+		Connection {
+			token: 999998888usize,
+			socket: TestSocket::new(),
+			send_queue: VecDeque::new(),
+			rec_buf: Bytes::new(),
+			rec_size: 0,
+			interest: EventSet::hup() | EventSet::readable(),
+			stats: Arc::<NetworkStats>::new(),
+		}
+	}
+}
+
 #[derive(Clone)]
 pub struct TestProtocolMessage {
 	payload: u32,
@@ -68,13 +123,13 @@ impl NetworkProtocolHandler<TestProtocolMessage> for TestProtocol {
 
 
 #[test]
-fn test_net_service() {
+fn net_service() {
 	let mut service = NetworkService::<TestProtocolMessage>::start(NetworkConfiguration::new()).expect("Error creating network service");
 	service.register_protocol(Arc::new(TestProtocol::default()), "myproto", &[1u8]).unwrap();
 }
 
 #[test]
-fn test_net_connect() {
+fn net_connect() {
 	let key1 = KeyPair::create().unwrap();
 	let mut config1 = NetworkConfiguration::new_with_port(30344);
 	config1.use_secret = Some(key1.secret().clone());
@@ -93,7 +148,7 @@ fn test_net_connect() {
 }
 
 #[test]
-fn test_net_timeout() {
+fn net_timeout() {
 	let config = NetworkConfiguration::new_with_port(30346);
 	let mut service = NetworkService::<TestProtocolMessage>::start(config).unwrap();
 	let handler = TestProtocol::register(&mut service);
@@ -101,3 +156,8 @@ fn test_net_timeout() {
 		thread::sleep(Duration::from_millis(50));
 	}
 }
+
+#[test]
+fn connection_expect() {
+	let connection = TestConnection::new();
+}
\ No newline at end of file