diff --git a/src/mintdb/test_mintdb.c b/src/mintdb/test_mintdb.c
index f0a66a51f..f2a4d8d35 100644
--- a/src/mintdb/test_mintdb.c
+++ b/src/mintdb/test_mintdb.c
@@ -300,11 +300,60 @@ test_melting (struct TALER_MINTDB_Session *session)
             (ret_denom_pubs[cnt].rsa_public_key,
              new_denom_pubs[cnt].rsa_public_key));
   }
+  struct TALER_MINTDB_RefreshCommitCoin *commit_coins;
+  struct TALER_MINTDB_RefreshCommitCoin *ccoin;
+  struct TALER_RefreshLinkEncrypted *rlink;
+  size_t size;
+  uint16_t cnc_index;
+
+#define COIN_ENC_MAX_SIZE 512
+  commit_coins = GNUNET_new_array (MELT_NEW_COINS,
+                                   struct TALER_MINTDB_RefreshCommitCoin);
+  cnc_index = (uint16_t) GNUNET_CRYPTO_random_u32
+      (GNUNET_CRYPTO_QUALITY_WEAK, GNUNET_MIN (MELT_NEW_COINS, UINT16_MAX));
+  for (cnt=0; cnt < MELT_NEW_COINS; cnt++)
+  {
+    ccoin = &commit_coins[cnt];
+    size = GNUNET_CRYPTO_random_u64 (GNUNET_CRYPTO_QUALITY_WEAK,
+                                  COIN_ENC_MAX_SIZE);
+    rlink = GNUNET_malloc (sizeof (struct TALER_RefreshLinkEncrypted) + size);
+    ccoin->refresh_link = rlink;
+    ccoin->coin_ev_size = GNUNET_CRYPTO_random_u64
+        (GNUNET_CRYPTO_QUALITY_WEAK, COIN_ENC_MAX_SIZE);
+    ccoin->coin_ev = GNUNET_malloc (ccoin->coin_ev_size);
+    GNUNET_CRYPTO_random_block (GNUNET_CRYPTO_QUALITY_WEAK,
+                                ccoin->coin_ev,
+                                ccoin->coin_ev_size);
+    rlink->blinding_key_enc_size = size;
+    RND_BLK (&rlink->coin_priv_enc);
+    rlink->blinding_key_enc = (const char *) &rlink[1];
+    GNUNET_CRYPTO_random_block (GNUNET_CRYPTO_QUALITY_WEAK,
+                                (void *)rlink->blinding_key_enc,
+                                rlink->blinding_key_enc_size);
+  }
+  FAILIF (GNUNET_OK !=
+          plugin->insert_refresh_commit_coins (plugin->cls,
+                                               session,
+                                               &session_hash,
+                                               cnc_index,
+                                               MELT_NEW_COINS,
+                                               commit_coins));
 
   ret = GNUNET_OK;
 
  drop:
   destroy_denom_key_pair (dkp);
+  if (NULL != commit_coins)
+  {
+    for (cnt = 0; cnt < MELT_NEW_COINS; cnt++)
+    {
+      ccoin = &commit_coins[cnt];
+      GNUNET_free_non_null (ccoin->coin_ev);
+      rlink = (struct TALER_RefreshLinkEncrypted *) ccoin->refresh_link;
+      GNUNET_free_non_null (rlink);
+    }
+    GNUNET_free (commit_coins);
+  }
   if (NULL != melts)
   {
     for (cnt = 0; cnt < MELT_OLD_COINS; cnt++)