diff --git a/scripts/test.sql b/scripts/test.sql
index 62d8428..57eb996 100644
--- a/scripts/test.sql
+++ b/scripts/test.sql
@@ -1,6 +1,10 @@
 -- test should return a value of "t", which means the test cases are working as expected --
 
 -- AES GCM test --
-select 'hello world' = pgcrypsi_aes_128_gcm_decrypt('abc$#128djdyAgbj', pgcrypsi_aes_128_gcm_encrypt('abc$#128djdyAgbj', 'hello world')) as res;
-select 'hello world' = pgcrypsi_aes_192_gcm_decrypt('abc$#128djdyAgbjau&YAnmc', pgcrypsi_aes_192_gcm_encrypt('abc$#128djdyAgbjau&YAnmc', 'hello world')) as res;
-select 'hello world' = pgcrypsi_aes_256_gcm_decrypt('abc$#128djdyAgbjau&YAnmcbagryt5x', pgcrypsi_aes_256_gcm_encrypt('abc$#128djdyAgbjau&YAnmcbagryt5x', 'hello world')) as res;
\ No newline at end of file
+select 'hello world' = pgcrypsi_aes_128_gcm_decrypt('abc$#128djdyAgbj', pgcrypsi_aes_128_gcm_encrypt('abc$#128djdyAgbj', 'hello world')) as res_pgcrypsi_aes_128_gcm_decrypt_valid;
+select 'hello world' = pgcrypsi_aes_192_gcm_decrypt('abc$#128djdyAgbjau&YAnmc', pgcrypsi_aes_192_gcm_encrypt('abc$#128djdyAgbjau&YAnmc', 'hello world')) as res_pgcrypsi_aes_192_gcm_decrypt_valid;
+select 'hello world' = pgcrypsi_aes_256_gcm_decrypt('abc$#128djdyAgbjau&YAnmcbagryt5x', pgcrypsi_aes_256_gcm_encrypt('abc$#128djdyAgbjau&YAnmcbagryt5x', 'hello world')) as res_pgcrypsi_aes_256_gcm_decrypt_valid;
+
+select 'hello world' != pgcrypsi_aes_128_gcm_decrypt('abc$#128djdyAgbj', pgcrypsi_aes_128_gcm_encrypt('abc$#128djdyAgbj', 'hello worldie')) as res_pgcrypsi_aes_128_gcm_decrypt_invalid;
+select 'hello world' != pgcrypsi_aes_192_gcm_decrypt('abc$#128djdyAgbjau&YAnmc', pgcrypsi_aes_192_gcm_encrypt('abc$#128djdyAgbjau&YAnmc', 'hello worldie')) as res_pgcrypsi_aes_192_gcm_decrypt_invalid;
+select 'hello world' != pgcrypsi_aes_256_gcm_decrypt('abc$#128djdyAgbjau&YAnmcbagryt5x', pgcrypsi_aes_256_gcm_encrypt('abc$#128djdyAgbjau&YAnmcbagryt5x', 'hello worldie')) as res_pgcrypsi_aes_256_gcm_decrypt_invalid;
\ No newline at end of file