Test optional fields in authorityKeyId

Signed-off-by: Przemek Stekiel <przemyslaw.stekiel@mobica.com>
diff --git a/tests/data_files/authorityKeyId_subjectKeyId.conf b/tests/data_files/authorityKeyId_subjectKeyId.conf
index 208082d..7237724 100644
--- a/tests/data_files/authorityKeyId_subjectKeyId.conf
+++ b/tests/data_files/authorityKeyId_subjectKeyId.conf
@@ -9,3 +9,10 @@
 [v3_req]
 subjectKeyIdentifier = hash
 authorityKeyIdentifier = keyid:always,issuer:always
+[v3_req_authorityKeyId_no_keyid]
+subjectKeyIdentifier = hash
+authorityKeyIdentifier = issuer:always
+[v3_req_authorityKeyId_no_issuer_serial]
+subjectKeyIdentifier = hash
+[v3_req_authorityKeyId_empty]
+subjectKeyIdentifier = hash