tests: Add initial osmo_io tests

Change-Id: Ia67629e53f4d2e5784177250d58e268fdfcaa0c2
diff --git a/tests/testsuite.at b/tests/testsuite.at
index 60aa74d..a2c8845 100644
--- a/tests/testsuite.at
+++ b/tests/testsuite.at
@@ -508,3 +508,11 @@
 cat $abs_srcdir/gsm44021/test_frame_csd.ok > expout
 AT_CHECK([$abs_top_builddir/tests/gsm44021/test_frame_csd], [], [expout],[])
 AT_CLEANUP
+
+AT_SETUP([osmo_io])
+AT_KEYWORDS([osmo_io])
+cat $abs_srcdir/osmo_io/osmo_io_test.ok > expout
+cat $abs_srcdir/osmo_io/osmo_io_test.err > experr
+touch experr
+AT_CHECK([$abs_top_builddir/tests/osmo_io/osmo_io_test], [0], [expout], [experr])
+AT_CLEANUP