diff --git a/Makefile.am b/Makefile.am
index f531b9d7..f68b6934 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -685,7 +685,8 @@ unit_test_cdmasms_SOURCES = unit/test-cdmasms.c src/cdma-smsutil.c
 unit_test_cdmasms_LDADD = @GLIB_LIBS@
 unit_objects += $(unit_test_cdmasms_OBJECTS)
 
-unit_test_sms_root_SOURCES = unit/test-sms.c src/util.c src/smsutil.c src/storage.c
+unit_test_sms_root_SOURCES = unit/test-sms-root.c \
+					src/util.c src/smsutil.c src/storage.c
 unit_test_sms_root_LDADD = @GLIB_LIBS@
 unit_objects += $(unit_test_sms_root_OBJECTS)
 
diff --git a/unit/test-sms-root.c b/unit/test-sms-root.c
index 71da4e7f..1aede080 100644
--- a/unit/test-sms-root.c
+++ b/unit/test-sms-root.c
@@ -34,6 +34,35 @@
 #include "util.h"
 #include "smsutil.h"
 
+static const char *assembly_pdu1 = "038121F340048155550119906041001222048C0500"
+					"031E0301041804420430043A002C002004100"
+					"43B0435043A04410430043D04340440002000"
+					"200441043B044304480430043B00200437043"
+					"000200434043204350440044C044E00200020"
+					"04380020002004320441043500200431043E0"
+					"43B044C044804350020043F04400435043804"
+					"41043F043E043B043D044F043B0441044F002"
+					"000200433043D0435";
+static int assembly_pdu_len1 = 155;
+
+static const char *assembly_pdu2 = "038121F340048155550119906041001222048C0500"
+					"031E03020432043E043C002E000A041D04300"
+					"43A043E043D04350446002C0020043D043500"
+					"200432002004410438043B043004450020043"
+					"40430043B043504350020044204350440043F"
+					"04350442044C002C0020043E043D002004410"
+					"44204400435043C043804420435043B044C04"
+					"3D043E002004320431043504360430043B002"
+					"004320020043A043E";
+static int assembly_pdu_len2 = 155;
+
+static const char *assembly_pdu3 = "038121F340048155550119906041001222044A0500"
+					"031E0303043C043D043004420443002C00200"
+					"43F043E043704300431044B0432000A043404"
+					"3004360435002C002004470442043E0020002"
+					"00431044B043B0020043D04300433002E";
+static int assembly_pdu_len3 = 89;
+
 static void test_serialize_assembly(void)
 {
 	unsigned char pdu[176];