msgb/test: Add test for msgb message buffers

This tests several API functions of the msgb by checking the
invariant and by dumping resulting message buffers as hex.

Sponsored-by: On-Waves ehf

Conflicts:
	tests/Makefile.am
diff --git a/tests/Makefile.am b/tests/Makefile.am
index 2411afa..a4a6b2e 100644
--- a/tests/Makefile.am
+++ b/tests/Makefile.am
@@ -12,7 +12,7 @@
 		 loggingrb/loggingrb_test strrb/strrb_test              \
 		 vty/vty_test comp128/comp128_test utils/utils_test	\
 		 smscb/gsm0341_test stats/stats_test			\
-		 bitvec/bitvec_test
+		 bitvec/bitvec_test msgb/msgb_test
 
 if ENABLE_MSGFILE
 check_PROGRAMS += msgfile/msgfile_test
@@ -57,6 +57,9 @@
 lapd_lapd_test_SOURCES = lapd/lapd_test.c
 lapd_lapd_test_LDADD = $(top_builddir)/src/libosmocore.la $(top_builddir)/src/gsm/libosmogsm.la
 
+msgb_msgb_test_SOURCES = msgb/msgb_test.c
+msgb_msgb_test_LDADD = $(top_builddir)/src/libosmocore.la
+
 msgfile_msgfile_test_SOURCES = msgfile/msgfile_test.c
 msgfile_msgfile_test_LDADD = $(top_builddir)/src/libosmocore.la
 
@@ -133,7 +136,7 @@
              loggingrb/logging_test.err	strrb/strrb_test.ok		\
 	     vty/vty_test.ok comp128/comp128_test.ok			\
 	     utils/utils_test.ok stats/stats_test.ok			\
-	     bitvec/bitvec_test.ok
+	     bitvec/bitvec_test.ok msgb/msgb_test.ok
 
 DISTCLEANFILES = atconfig