diff --git a/src/libcore/rt/test.rs b/src/libcore/rt/test.rs
index dfc058d6eba5..585d43a3ade8 100644
--- a/src/libcore/rt/test.rs
+++ b/src/libcore/rt/test.rs
@@ -8,6 +8,8 @@
 // option. This file may not be copied, modified, or distributed
 // except according to those terms.
 
+use super::io::net::ip::{IpAddr, Ipv4};
+
 // For setting up tests of the new scheduler
 pub fn run_in_newsched_task(f: ~fn()) {
     use cell::Cell;
@@ -53,3 +55,8 @@ pub fn next_test_port() -> u16 {
         fn rust_dbg_next_port() -> ::libc::uintptr_t;
     }
 }
+
+/// Get a unique localhost:port pair starting at 9600
+pub fn next_test_ip4() -> IpAddr {
+    Ipv4(127, 0, 0, 1, next_test_port())
+}
diff --git a/src/libcore/rt/uv/net.rs b/src/libcore/rt/uv/net.rs
index 54823d4dbcf6..860c988b9c99 100644
--- a/src/libcore/rt/uv/net.rs
+++ b/src/libcore/rt/uv/net.rs
@@ -22,7 +22,7 @@ use super::super::io::net::ip::{IpAddr, Ipv4, Ipv6};
 #[cfg(test)] use cell::Cell;
 #[cfg(test)] use unstable::run_in_bare_thread;
 #[cfg(test)] use super::super::thread::Thread;
-#[cfg(test)] use super::super::test::next_test_port;
+#[cfg(test)] use super::super::test::*;
 
 fn ip4_as_uv_ip4(addr: IpAddr, f: &fn(*sockaddr_in)) {
     match addr {
@@ -359,7 +359,7 @@ fn connect_close() {
         let mut loop_ = Loop::new();
         let mut tcp_watcher = { TcpWatcher::new(&mut loop_) };
         // Connect to a port where nobody is listening
-        let addr = Ipv4(127, 0, 0, 1, next_test_port());
+        let addr = next_test_ip4();
         do tcp_watcher.connect(addr) |stream_watcher, status| {
             rtdebug!("tcp_watcher.connect!");
             assert!(status.is_some());
@@ -377,7 +377,7 @@ fn listen() {
         static MAX: int = 10;
         let mut loop_ = Loop::new();
         let mut server_tcp_watcher = { TcpWatcher::new(&mut loop_) };
-        let addr = Ipv4(127, 0, 0, 1, next_test_port());
+        let addr = next_test_ip4();
         server_tcp_watcher.bind(addr);
         let loop_ = loop_;
         rtdebug!("listening");
diff --git a/src/libcore/rt/uvio.rs b/src/libcore/rt/uvio.rs
index 2582ddf31051..92439a41b342 100644
--- a/src/libcore/rt/uvio.rs
+++ b/src/libcore/rt/uvio.rs
@@ -338,7 +338,7 @@ impl Stream for UvStream {
 fn test_simple_io_no_connect() {
     do run_in_newsched_task {
         let io = unsafe { local_sched::unsafe_borrow_io() };
-        let addr = Ipv4(127, 0, 0, 1, next_test_port());
+        let addr = next_test_ip4();
         let maybe_chan = io.connect(addr);
         assert!(maybe_chan.is_none());
     }
@@ -347,7 +347,7 @@ fn test_simple_io_no_connect() {
 #[test]
 fn test_simple_tcp_server_and_client() {
     do run_in_newsched_task {
-        let addr = Ipv4(127, 0, 0, 1, next_test_port());
+        let addr = next_test_ip4();
 
         // Start the server first so it's listening when we connect
         do spawn_immediately {
@@ -381,7 +381,7 @@ fn test_simple_tcp_server_and_client() {
 #[test] #[ignore(reason = "busted")]
 fn test_read_and_block() {
     do run_in_newsched_task {
-        let addr = Ipv4(127, 0, 0, 1, next_test_port());
+        let addr = next_test_ip4();
 
         do spawn_immediately {
             let io = unsafe { local_sched::unsafe_borrow_io() };
@@ -437,7 +437,7 @@ fn test_read_and_block() {
 #[test]
 fn test_read_read_read() {
     do run_in_newsched_task {
-        let addr = Ipv4(127, 0, 0, 1, next_test_port());
+        let addr = next_test_ip4();
         static MAX: uint = 5000000;
         
         do spawn_immediately {