Add minimal testing of socket.c helper functions

Change-Id: I2773b3859a206f96fb8fa095d50a653d9eeb8d79
diff --git a/tests/testsuite.at b/tests/testsuite.at
index 426c74c..d6181c9 100644
--- a/tests/testsuite.at
+++ b/tests/testsuite.at
@@ -228,3 +228,11 @@
 touch experr
 AT_CHECK([$abs_top_builddir/tests/oap/oap_test], [0], [expout], [experr])
 AT_CLEANUP
+
+AT_SETUP([socket])
+AT_KEYWORDS([socket])
+cat $abs_srcdir/socket/socket_test.ok > expout
+cat $abs_srcdir/socket/socket_test.err > experr
+touch experr
+AT_CHECK([$abs_top_builddir/tests/socket/socket_test], [0], [expout], [experr])
+AT_CLEANUP