Make sure we have tests which fetch KMIP and Vault keys

Before this we had no coverage of the code path for successfully
fetching a KMIP key from the key provider.

Author: jeltz

contrib/pg_tde/expected/kmip_test.out

@@ -27,5 +27,11 @@ SELECT * from test_enc;
   3 | 3
 (3 rows)
 
+SELECT pg_tde_verify_key();
+ pg_tde_verify_key 
+-------------------
+ 
+(1 row)
+
 DROP TABLE test_enc;
 DROP EXTENSION pg_tde;

contrib/pg_tde/expected/vault_v2_test.out

@@ -44,5 +44,11 @@ SELECT * from test_enc;
   3 | 3
 (3 rows)
 
+SELECT pg_tde_verify_key();
+ pg_tde_verify_key 
+-------------------
+ 
+(1 row)
+
 DROP TABLE test_enc;
 DROP EXTENSION pg_tde;

contrib/pg_tde/sql/kmip_test.sql

@@ -15,6 +15,8 @@ INSERT INTO test_enc (k) VALUES (3);
 
 SELECT * from test_enc;
 
+SELECT pg_tde_verify_key();
+
 DROP TABLE test_enc;
 
 DROP EXTENSION pg_tde;

contrib/pg_tde/sql/vault_v2_test.sql

@@ -27,6 +27,8 @@ INSERT INTO test_enc (k) VALUES (3);
 
 SELECT * from test_enc;
 
+SELECT pg_tde_verify_key();
+
 DROP TABLE test_enc;
 
 DROP EXTENSION pg_tde;