Add tests for Issue #8687

Signed-off-by: Jonathan Winzig <jwinzig@hilscher.com>
diff --git a/tests/suites/test_suite_x509write.data b/tests/suites/test_suite_x509write.data
index 999c05f..6bb81c7 100644
--- a/tests/suites/test_suite_x509write.data
+++ b/tests/suites/test_suite_x509write.data
@@ -138,3 +138,6 @@
 
 Check max serial length
 x509_set_serial_check:
+
+Check max extension length
+x509_set_extension_length_check: