Added test for keepalive sockopts.

Author: yoav-steinberg

test/sys/test_sockopt.rs

@@ -67,3 +67,22 @@ fn test_bindtodevice() {
         val
     );
 }
+
+#[test]
+fn test_so_tcp_keepalive() {
+    let fd = socket(AddressFamily::Inet, SockType::Stream, SockFlag::empty(), SockProtocol::Tcp).unwrap();
+    setsockopt(fd, sockopt::KeepAlive, &true).unwrap();
+    assert_eq!(getsockopt(fd, sockopt::KeepAlive).unwrap(), true);
+
+    let x = getsockopt(fd, sockopt::TcpKeepIdle).unwrap();
+    setsockopt(fd, sockopt::TcpKeepIdle, &(x+1)).unwrap();
+    assert_eq!(getsockopt(fd, sockopt::TcpKeepIdle).unwrap(), x+1);
+
+    let x = getsockopt(fd, sockopt::TcpKeepCount).unwrap();
+    setsockopt(fd, sockopt::TcpKeepCount, &(x+1)).unwrap();
+    assert_eq!(getsockopt(fd, sockopt::TcpKeepCount).unwrap(), x+1);
+
+    let x = getsockopt(fd, sockopt::TcpKeepInterval).unwrap();
+    setsockopt(fd, sockopt::TcpKeepInterval, &(x+1)).unwrap();
+    assert_eq!(getsockopt(fd, sockopt::TcpKeepInterval).unwrap(), x+1);
+}