Add tests for valid NULL in gcm_free()
diff --git a/tests/suites/test_suite_gcm.misc.data b/tests/suites/test_suite_gcm.misc.data
index f22b7a3..cf01526 100644
--- a/tests/suites/test_suite_gcm.misc.data
+++ b/tests/suites/test_suite_gcm.misc.data
@@ -1,2 +1,5 @@
 GCM - Invalid parameters
 gcm_invalid_param:
+
+GCM - Valid parameters
+gcm_valid_param: