- Added test for self_test()

diff --git a/tests/suites/test_suite_base64.data b/tests/suites/test_suite_base64.data
index 4c31fa5..2f4a4da 100644
--- a/tests/suites/test_suite_base64.data
+++ b/tests/suites/test_suite_base64.data
@@ -39,3 +39,6 @@
 
 Test case base64_decode #7
 base64_decode:"Zm9vYmFy":"foobar"
+
+Base64 Selftest
+base64_selftest: