aboutsummaryrefslogtreecommitdiff
path: root/src/exchangedb/test_exchangedb.c
blob: 3169f06db23bd5f23083f55ebfe3848ed54ea8f2 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
1001
1002
1003
1004
1005
1006
1007
1008
1009
1010
1011
1012
1013
1014
1015
1016
1017
1018
1019
1020
1021
1022
1023
1024
1025
1026
1027
1028
1029
1030
1031
1032
1033
1034
1035
1036
1037
1038
1039
1040
1041
1042
1043
1044
1045
1046
1047
1048
1049
1050
1051
1052
1053
1054
1055
1056
1057
1058
1059
1060
1061
1062
1063
1064
1065
1066
1067
1068
1069
1070
1071
1072
1073
1074
1075
1076
1077
1078
1079
1080
1081
1082
1083
1084
1085
1086
1087
1088
1089
1090
1091
1092
1093
1094
1095
1096
1097
1098
1099
1100
1101
1102
1103
1104
1105
1106
1107
1108
1109
1110
1111
1112
1113
1114
1115
1116
1117
1118
1119
1120
1121
1122
1123
1124
1125
1126
1127
1128
1129
1130
1131
1132
1133
1134
1135
1136
1137
1138
1139
1140
1141
1142
1143
1144
1145
1146
1147
1148
1149
1150
1151
1152
1153
1154
1155
1156
1157
1158
1159
1160
1161
1162
1163
1164
1165
1166
1167
1168
1169
1170
1171
1172
1173
1174
1175
1176
1177
1178
1179
1180
1181
1182
1183
1184
1185
1186
1187
1188
1189
1190
1191
1192
1193
1194
1195
1196
1197
1198
1199
1200
1201
1202
1203
1204
1205
1206
1207
1208
1209
1210
1211
1212
1213
1214
1215
1216
1217
1218
1219
1220
1221
1222
1223
1224
1225
1226
1227
1228
1229
1230
1231
1232
1233
1234
1235
1236
1237
1238
1239
1240
1241
1242
1243
1244
1245
1246
1247
1248
1249
1250
1251
1252
1253
1254
1255
1256
1257
1258
1259
1260
1261
1262
1263
1264
1265
1266
1267
1268
1269
1270
1271
1272
1273
1274
1275
1276
1277
1278
1279
1280
1281
1282
1283
1284
1285
1286
1287
1288
1289
1290
1291
1292
1293
1294
1295
1296
1297
1298
1299
1300
1301
1302
1303
1304
1305
1306
1307
1308
1309
1310
1311
1312
1313
1314
1315
1316
1317
1318
1319
1320
1321
1322
1323
1324
1325
1326
1327
1328
1329
1330
1331
1332
1333
1334
1335
1336
1337
1338
1339
1340
1341
1342
/*
  This file is part of TALER
  Copyright (C) 2014, 2015, 2016 GNUnet e.V.

  TALER is free software; you can redistribute it and/or modify it under the
  terms of the GNU General Public License as published by the Free Software
  Foundation; either version 3, or (at your option) any later version.

  TALER is distributed in the hope that it will be useful, but WITHOUT ANY
  WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
  A PARTICULAR PURPOSE.  See the GNU General Public License for more details.

  You should have received a copy of the GNU General Public License along with
  TALER; see the file COPYING.  If not, If not, see <http://www.gnu.org/licenses/>
*/
/**
 * @file exchangedb/test_exchangedb.c
 * @brief test cases for DB interaction functions
 * @author Sree Harsha Totakura
 * @author Christian Grothoff
 */
#include "platform.h"
#include "taler_exchangedb_lib.h"
#include "taler_json_lib.h"
#include "taler_exchangedb_plugin.h"

/**
 * Global result from the testcase.
 */
static int result;

/**
 * Report line of error if @a cond is true, and jump to label "drop".
 */
#define FAILIF(cond)                              \
  do {                                          \
    if (!(cond)){ break;}                      \
    GNUNET_break (0);                           \
    goto drop;                                  \
  } while (0)


/**
 * Initializes @a ptr with random data.
 */
#define RND_BLK(ptr)                                                    \
  GNUNET_CRYPTO_random_block (GNUNET_CRYPTO_QUALITY_WEAK, ptr, sizeof (*ptr))

/**
 * Initializes @a ptr with zeros.
 */
#define ZR_BLK(ptr) \
  memset (ptr, 0, sizeof (*ptr))


/**
 * Currency we use.
 */
#define CURRENCY "EUR"

/**
 * Database plugin under test.
 */
static struct TALER_EXCHANGEDB_Plugin *plugin;


/**
 * Callback that should never be called.
 */
static void
dead_prepare_cb (void *cls,
                 unsigned long long rowid,
                 const char *wire_method,
                 const char *buf,
                 size_t buf_size)
{
  GNUNET_assert (0);
}


/**
 * Callback that is called with wire prepare data
 * and then marks it as finished.
 */
static void
mark_prepare_cb (void *cls,
                 unsigned long long rowid,
                 const char *wire_method,
                 const char *buf,
                 size_t buf_size)
{
  struct TALER_EXCHANGEDB_Session *session = cls;

  GNUNET_assert (11 == buf_size);
  GNUNET_assert (0 == strcasecmp (wire_method,
                                  "testcase"));
  GNUNET_assert (0 == memcmp (buf,
                              "hello world",
                              buf_size));
  GNUNET_break (GNUNET_OK ==
                plugin->wire_prepare_data_mark_finished (plugin->cls,
                                                         session,
                                                         rowid));
}


/**
 * Test API relating to persisting the wire plugins preparation data.
 *
 * @param session database session to use for the test
 * @return #GNUNET_OK on success
 */
static int
test_wire_prepare (struct TALER_EXCHANGEDB_Session *session)
{
  FAILIF (GNUNET_NO !=
          plugin->wire_prepare_data_get (plugin->cls,
                                         session,
                                         &dead_prepare_cb,
                                         NULL));
  FAILIF (GNUNET_OK !=
          plugin->wire_prepare_data_insert (plugin->cls,
                                            session,
                                            "testcase",
                                            "hello world",
                                            11));
  FAILIF (GNUNET_OK !=
          plugin->wire_prepare_data_get (plugin->cls,
                                         session,
                                         &mark_prepare_cb,
                                         session));
  FAILIF (GNUNET_NO !=
          plugin->wire_prepare_data_get (plugin->cls,
                                         session,
                                         &dead_prepare_cb,
                                         NULL));
  return GNUNET_OK;
 drop:
  return GNUNET_SYSERR;
}


/**
 * Checks if the given reserve has the given amount of balance and expiry
 *
 * @param session the database connection
 * @param pub the public key of the reserve
 * @param value balance value
 * @param fraction balance fraction
 * @param currency currency of the reserve
 * @return #GNUNET_OK if the given reserve has the same balance and expiration
 *           as the given parameters; #GNUNET_SYSERR if not
 */
static int
check_reserve (struct TALER_EXCHANGEDB_Session *session,
               const struct TALER_ReservePublicKeyP *pub,
               uint64_t value,
               uint32_t fraction,
               const char *currency)
{
  struct TALER_EXCHANGEDB_Reserve reserve;

  reserve.pub = *pub;

  FAILIF (GNUNET_OK !=
          plugin->reserve_get (plugin->cls,
                               session,
                               &reserve));
  FAILIF (value != reserve.balance.value);
  FAILIF (fraction != reserve.balance.fraction);
  FAILIF (0 != strcmp (currency, reserve.balance.currency));

  return GNUNET_OK;
 drop:
  return GNUNET_SYSERR;
}


struct DenomKeyPair
{
  struct TALER_DenominationPrivateKey priv;
  struct TALER_DenominationPublicKey pub;
};


/**
 * Destroy a denomination key pair.  The key is not necessarily removed from the DB.
 *
 * @param dkp the keypair to destroy
 */
static void
destroy_denom_key_pair (struct DenomKeyPair *dkp)
{
  GNUNET_CRYPTO_rsa_public_key_free (dkp->pub.rsa_public_key);
  GNUNET_CRYPTO_rsa_private_key_free (dkp->priv.rsa_private_key);
  GNUNET_free (dkp);
}


/**
 * Create a denominaiton key pair by registering the denomination in the DB.
 *
 * @param size the size of the denomination key
 * @param session the DB session
 * @return the denominaiton key pair; NULL upon error
 */
static struct DenomKeyPair *
create_denom_key_pair (unsigned int size,
                       struct TALER_EXCHANGEDB_Session *session,
                       const struct TALER_Amount *value,
                       const struct TALER_Amount *fee_withdraw,
                       const struct TALER_Amount *fee_deposit,
                       const struct TALER_Amount *fee_refresh,
                       const struct TALER_Amount *fee_refund)
{
  struct DenomKeyPair *dkp;
  struct TALER_EXCHANGEDB_DenominationKeyIssueInformation dki;
  struct TALER_EXCHANGEDB_DenominationKeyInformationP issue2;
  struct GNUNET_TIME_Absolute now;

  dkp = GNUNET_new (struct DenomKeyPair);
  dkp->priv.rsa_private_key = GNUNET_CRYPTO_rsa_private_key_create (size);
  GNUNET_assert (NULL != dkp->priv.rsa_private_key);
  dkp->pub.rsa_public_key
    = GNUNET_CRYPTO_rsa_private_key_get_public (dkp->priv.rsa_private_key);

  /* Using memset() as fields like master key and signature
     are not properly initialized for this test. */
  memset (&dki,
          0,
          sizeof (struct TALER_EXCHANGEDB_DenominationKeyIssueInformation));
  dki.denom_pub = dkp->pub;
  now = GNUNET_TIME_absolute_get ();
  GNUNET_TIME_round_abs (&now);
  dki.issue.properties.start = GNUNET_TIME_absolute_hton (now);
  dki.issue.properties.expire_withdraw = GNUNET_TIME_absolute_hton
    (GNUNET_TIME_absolute_add (now,
                               GNUNET_TIME_UNIT_HOURS));
  dki.issue.properties.expire_deposit = GNUNET_TIME_absolute_hton
      (GNUNET_TIME_absolute_add
       (now,
        GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_HOURS, 2)));
  dki.issue.properties.expire_legal = GNUNET_TIME_absolute_hton
      (GNUNET_TIME_absolute_add
       (now,
        GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_HOURS, 3)));
  TALER_amount_hton (&dki.issue.properties.value, value);
  TALER_amount_hton (&dki.issue.properties.fee_withdraw, fee_withdraw);
  TALER_amount_hton (&dki.issue.properties.fee_deposit, fee_deposit);
  TALER_amount_hton (&dki.issue.properties.fee_refresh, fee_refresh);
  TALER_amount_hton (&dki.issue.properties.fee_refund, fee_refund);
  GNUNET_CRYPTO_rsa_public_key_hash (dkp->pub.rsa_public_key,
                                     &dki.issue.properties.denom_hash);

  dki.issue.properties.purpose.size = htonl (sizeof (struct TALER_DenominationKeyValidityPS));
  dki.issue.properties.purpose.purpose = htonl (TALER_SIGNATURE_MASTER_DENOMINATION_KEY_VALIDITY);
  if (GNUNET_OK !=
      plugin->insert_denomination_info (plugin->cls,
                                        session,
                                        &dki.denom_pub,
                                        &dki.issue))
  {
    GNUNET_break(0);
    destroy_denom_key_pair (dkp);
    return NULL;
  }
  if (GNUNET_OK !=
      plugin->get_denomination_info (plugin->cls,
                                     session,
                                     &dki.denom_pub,
                                     &issue2))
  {
    GNUNET_break(0);
    destroy_denom_key_pair (dkp);
    return NULL;
  }
  if (0 != memcmp (&dki.issue,
                   &issue2,
                   sizeof (issue2)))
  {
    GNUNET_break(0);
    destroy_denom_key_pair (dkp);
    return NULL;
  }
  return dkp;
}

static struct TALER_Amount value;
static struct TALER_Amount fee_withdraw;
static struct TALER_Amount fee_deposit;
static struct TALER_Amount fee_refresh;
static struct TALER_Amount fee_refund;
static struct TALER_Amount amount_with_fee;


/**
 * Free memory associated with @a commit_coins.
 *
 * @param commit_coins memory to release
 * @param size size of the @a commit_coins array
 */
static void
free_refresh_commit_coins_array (struct TALER_EXCHANGEDB_RefreshCommitCoin *commit_coins,
                                 unsigned int size)
{
  unsigned int cnt;
  struct TALER_EXCHANGEDB_RefreshCommitCoin *ccoin;
  struct TALER_RefreshLinkEncrypted *rlink;

  for (cnt = 0; cnt < size; 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);
}


/**
 * Number of newly minted coins to use in the test.
 */
#define MELT_NEW_COINS 5

/**
 * Test APIs related to the "insert_refresh_commit_coins" function.
 *
 * @param session database sesison to use
 * @param refresh_session details about the refresh session to use
 * @param session_hash refresh melt session hash to use
 * @return #GNUNET_OK on success
 */
static int
test_refresh_commit_coins (struct TALER_EXCHANGEDB_Session *session,
                           const struct TALER_EXCHANGEDB_RefreshSession *refresh_session,
                           const struct GNUNET_HashCode *session_hash)
{
  struct TALER_EXCHANGEDB_RefreshCommitCoin *commit_coins;
  struct TALER_EXCHANGEDB_RefreshCommitCoin *ret_commit_coins;
  struct TALER_EXCHANGEDB_RefreshCommitCoin *a_ccoin;
  struct TALER_RefreshLinkEncrypted *a_rlink;
  struct TALER_EXCHANGEDB_RefreshCommitCoin *b_ccoin;
  struct TALER_RefreshLinkEncrypted *b_rlink;
  size_t size;
  unsigned int cnt;
  uint16_t cnc_index;
  int ret;

#define COIN_ENC_MAX_SIZE 512
  ret = GNUNET_SYSERR;
  ret_commit_coins = NULL;
  commit_coins = GNUNET_new_array (MELT_NEW_COINS,
                                   struct TALER_EXCHANGEDB_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++)
  {
    struct TALER_EXCHANGEDB_RefreshCommitCoin *ccoin;
    struct TALER_RefreshLinkEncrypted *rlink;
    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_commit_coins = GNUNET_new_array (MELT_NEW_COINS,
                                       struct TALER_EXCHANGEDB_RefreshCommitCoin);
  FAILIF (GNUNET_OK !=
          plugin->get_refresh_commit_coins (plugin->cls,
                                            session,
                                            session_hash,
                                            cnc_index,
                                            MELT_NEW_COINS,
                                            ret_commit_coins));
  /* compare the refresh commit coin arrays */
  for (cnt = 0; cnt < MELT_NEW_COINS; cnt++)
  {
    a_ccoin = &commit_coins[cnt];
    b_ccoin = &ret_commit_coins[cnt];
    FAILIF (a_ccoin->coin_ev_size != b_ccoin->coin_ev_size);
    FAILIF (0 != memcmp (a_ccoin->coin_ev,
                         a_ccoin->coin_ev,
                         a_ccoin->coin_ev_size));
    a_rlink = a_ccoin->refresh_link;
    b_rlink = b_ccoin->refresh_link;
    FAILIF (a_rlink->blinding_key_enc_size != b_rlink->blinding_key_enc_size);
    FAILIF (0 != memcmp (a_rlink->blinding_key_enc,
                         b_rlink->blinding_key_enc,
                         a_rlink->blinding_key_enc_size));
    FAILIF (0 != memcmp (a_rlink->coin_priv_enc,
                         b_rlink->coin_priv_enc,
                         sizeof (a_rlink->coin_priv_enc)));
  }
  ret = GNUNET_OK;

 drop:
  if (NULL != ret_commit_coins)
    free_refresh_commit_coins_array (ret_commit_coins, MELT_NEW_COINS);
  if (NULL != commit_coins)
    free_refresh_commit_coins_array (commit_coins, MELT_NEW_COINS);
  return ret;
}


/**
 * Test APIs related to the "insert_refresh_commit_coins" function.
 *
 * @param session database sesison to use
 * @param refresh_session details about the refresh session to use
 * @param session_hash refresh melt session hash to use
 * @return #GNUNET_OK on success
 */
static int
test_refresh_commit_links (struct TALER_EXCHANGEDB_Session *session,
                           const struct TALER_EXCHANGEDB_RefreshSession *refresh_session,
                           const struct GNUNET_HashCode *session_hash)
{
  /*
     FIXME #4401: test: insert_refresh_commit_links
     FIXME #4401: test: get_refresh_commit_links

     FIXME #4401: test: get_link_data_list
     FIXME #4401: test: free_link_data_list
     FIXME #4401: test: get_transfer

   */
  return GNUNET_OK;
}


/**
 * Function to test melting of coins as part of a refresh session
 *
 * @param session the database session
 * @param refresh_session the refresh session
 * @return #GNUNET_OK if everything went well; #GNUNET_SYSERR if not
 */
static int
test_melting (struct TALER_EXCHANGEDB_Session *session)
{
  struct TALER_EXCHANGEDB_RefreshSession refresh_session;
  struct TALER_EXCHANGEDB_RefreshSession ret_refresh_session;
  struct GNUNET_HashCode session_hash;
  struct DenomKeyPair *dkp;
  struct DenomKeyPair **new_dkp;
  /* struct TALER_CoinPublicInfo *coins; */
  struct TALER_EXCHANGEDB_RefreshMelt *meltp;
  struct TALER_DenominationPublicKey *new_denom_pubs;
  struct TALER_DenominationPublicKey *ret_denom_pubs;
  struct TALER_EXCHANGEDB_MeltCommitment *mc;
  unsigned int cnt;
  int ret;

  ret = GNUNET_SYSERR;
  RND_BLK (&refresh_session);
  RND_BLK (&session_hash);
  dkp = NULL;
  new_dkp = NULL;
  new_denom_pubs = NULL;
  ret_denom_pubs = NULL;
  /* create and test a refresh session */
  refresh_session.num_newcoins = 1;
  refresh_session.noreveal_index = 1;
  /* create a denomination (value: 1; fraction: 100) */
  dkp = create_denom_key_pair (512,
                               session,
                               &value,
                               &fee_withdraw,
                               &fee_deposit,
                               &fee_refresh,
			       &fee_refund);
  /* initialize refresh session melt data */
  {
    struct GNUNET_HashCode hc;

    meltp = &refresh_session.melt;
    RND_BLK (&meltp->coin.coin_pub);
    GNUNET_CRYPTO_hash (&meltp->coin.coin_pub,
                        sizeof (meltp->coin.coin_pub),
                        &hc);
    meltp->coin.denom_sig.rsa_signature =
        GNUNET_CRYPTO_rsa_sign_fdh (dkp->priv.rsa_private_key,
                                    &hc);
    meltp->coin.denom_pub = dkp->pub;
    RND_BLK (&meltp->coin_sig);
    meltp->session_hash = session_hash;
    meltp->amount_with_fee = amount_with_fee;
    meltp->melt_fee = fee_refresh;
  }

  FAILIF (GNUNET_OK != plugin->create_refresh_session (plugin->cls,
                                                       session,
                                                       &session_hash,
                                                       &refresh_session));
  FAILIF (GNUNET_OK != plugin->get_refresh_session (plugin->cls,
                                                    session,
                                                    &session_hash,
                                                    &ret_refresh_session));
  FAILIF (ret_refresh_session.num_newcoins != refresh_session.num_newcoins);
  FAILIF (ret_refresh_session.noreveal_index != refresh_session.noreveal_index);

  /* check refresh sesison melt data */
  {
    struct TALER_EXCHANGEDB_RefreshMelt *ret_melt;

    ret_melt = &ret_refresh_session.melt;
    FAILIF (0 != GNUNET_CRYPTO_rsa_signature_cmp
            (ret_melt->coin.denom_sig.rsa_signature,
             meltp->coin.denom_sig.rsa_signature));
    FAILIF (0 != memcmp (&ret_melt->coin.coin_pub,
                         &meltp->coin.coin_pub,
                         sizeof (ret_melt->coin.coin_pub)));
    FAILIF (0 != GNUNET_CRYPTO_rsa_public_key_cmp
            (ret_melt->coin.denom_pub.rsa_public_key,
             meltp->coin.denom_pub.rsa_public_key));
    FAILIF (0 != memcmp (&ret_melt->coin_sig,
                         &meltp->coin_sig,
                         sizeof (ret_melt->coin_sig)));
    FAILIF (0 != memcmp (&ret_melt->session_hash,
                         &meltp->session_hash,
                         sizeof (ret_melt->session_hash)));
    FAILIF (0 != TALER_amount_cmp (&ret_melt->amount_with_fee,
                                   &meltp->amount_with_fee));
    FAILIF (0 != TALER_amount_cmp (&ret_melt->melt_fee,
                                   &meltp->melt_fee));
    GNUNET_CRYPTO_rsa_signature_free (ret_melt->coin.denom_sig.rsa_signature);
    GNUNET_CRYPTO_rsa_public_key_free (ret_melt->coin.denom_pub.rsa_public_key);
  }
  new_dkp = GNUNET_new_array (MELT_NEW_COINS, struct DenomKeyPair *);
  new_denom_pubs = GNUNET_new_array (MELT_NEW_COINS,
                                     struct TALER_DenominationPublicKey);
  for (cnt=0; cnt < MELT_NEW_COINS; cnt++)
  {
    new_dkp[cnt] = create_denom_key_pair (128, session,
                                          &value,
                                          &fee_withdraw,
                                          &fee_deposit,
                                          &fee_refresh,
					  &fee_refund);
    new_denom_pubs[cnt]=new_dkp[cnt]->pub;
  }
  FAILIF (GNUNET_OK != plugin->insert_refresh_order (plugin->cls,
                                                       session,
                                                       &session_hash,
                                                       MELT_NEW_COINS,
                                                       new_denom_pubs));
  ret_denom_pubs = GNUNET_new_array (MELT_NEW_COINS,
                                     struct TALER_DenominationPublicKey);
  FAILIF (GNUNET_OK != plugin->get_refresh_order (plugin->cls,
                                                  session,
                                                  &session_hash,
                                                  MELT_NEW_COINS,
                                                  ret_denom_pubs));
  for (cnt=0; cnt < MELT_NEW_COINS; cnt++)
  {
    FAILIF (0 != GNUNET_CRYPTO_rsa_public_key_cmp
            (ret_denom_pubs[cnt].rsa_public_key,
             new_denom_pubs[cnt].rsa_public_key));
  }
  FAILIF (GNUNET_OK !=
          test_refresh_commit_coins (session,
                                     &refresh_session,
                                     &session_hash));
  FAILIF (GNUNET_OK !=
          test_refresh_commit_links (session,
                                     &refresh_session,
                                     &session_hash));

  /* checking 'get_melt_commitment' API */
  mc = plugin->get_melt_commitment (plugin->cls,
                                    session,
                                    &session_hash);
  FAILIF (NULL != mc); /* NOTE: this will change once
                          'test_refresh_commit_links' is implemented properly */
#if 0
  /* FIXME #4401: test: get_melt_commitment:
     check detailed information contained in 'mc' */
  plugin->free_melt_commitment (plugin->cls,
                                mc);
#endif

  /* FIXME #4401: test: insert_refresh_out */

  ret = GNUNET_OK;

 drop:
  if (NULL != dkp)
    destroy_denom_key_pair (dkp);
  GNUNET_CRYPTO_rsa_signature_free (meltp->coin.denom_sig.rsa_signature);
  for (cnt = 0;
       (NULL != ret_denom_pubs) && (cnt < MELT_NEW_COINS)
         && (NULL != ret_denom_pubs[cnt].rsa_public_key);
       cnt++)
    GNUNET_CRYPTO_rsa_public_key_free (ret_denom_pubs[cnt].rsa_public_key);
  GNUNET_free_non_null (ret_denom_pubs);
  GNUNET_free_non_null (new_denom_pubs);
  for (cnt = 0;
       (NULL != new_dkp) && (cnt < MELT_NEW_COINS) && (NULL != new_dkp[cnt]);
       cnt++)
    destroy_denom_key_pair (new_dkp[cnt]);
  GNUNET_free_non_null (new_dkp);
  return ret;
}


/**
 * Callback that should never be called.
 */
static void
cb_wt_never (void *cls,
             const struct TALER_MerchantPublicKeyP *merchant_pub,
             const struct GNUNET_HashCode *h_wire,
             const struct GNUNET_HashCode *h_contract,
             uint64_t transaction_id,
             const struct TALER_CoinSpendPublicKeyP *coin_pub,
             const struct TALER_Amount *coin_value,
             const struct TALER_Amount *coin_fee)
{
  GNUNET_assert (0); /* this statement should be unreachable */
}


/**
 * Callback that should never be called.
 */
static void
cb_wtid_never (void *cls,
               const struct TALER_WireTransferIdentifierRawP *wtid,
               const struct TALER_Amount *coin_contribution,
               const struct TALER_Amount *coin_fee,
               struct GNUNET_TIME_Absolute execution_time)
{
  GNUNET_assert (0);
}


static struct TALER_MerchantPublicKeyP merchant_pub_wt;
static struct GNUNET_HashCode h_wire_wt;
static struct GNUNET_HashCode h_contract_wt;
static uint64_t transaction_id_wt;
static struct TALER_CoinSpendPublicKeyP coin_pub_wt;
static struct TALER_Amount coin_value_wt;
static struct TALER_Amount coin_fee_wt;
static struct TALER_Amount transfer_value_wt;
static struct GNUNET_TIME_Absolute execution_time_wt;
static struct TALER_WireTransferIdentifierRawP wtid_wt;


/**
 * Callback that should be called with the WT data.
 */
static void
cb_wt_check (void *cls,
             const struct TALER_MerchantPublicKeyP *merchant_pub,
             const struct GNUNET_HashCode *h_wire,
             const struct GNUNET_HashCode *h_contract,
             uint64_t transaction_id,
             const struct TALER_CoinSpendPublicKeyP *coin_pub,
             const struct TALER_Amount *coin_value,
             const struct TALER_Amount *coin_fee)
{
  GNUNET_assert (cls == &cb_wt_never);
  GNUNET_assert (0 == memcmp (merchant_pub,
                              &merchant_pub_wt,
                              sizeof (struct TALER_MerchantPublicKeyP)));
  GNUNET_assert (0 == memcmp (h_wire,
                              &h_wire_wt,
                              sizeof (struct GNUNET_HashCode)));
  GNUNET_assert (0 == memcmp (h_contract,
                              &h_contract_wt,
                              sizeof (struct GNUNET_HashCode)));
  GNUNET_assert (transaction_id == transaction_id_wt);
  GNUNET_assert (0 == memcmp (coin_pub,
                              &coin_pub_wt,
                              sizeof (struct TALER_CoinSpendPublicKeyP)));
  GNUNET_assert (0 == TALER_amount_cmp (coin_value,
                                        &coin_value_wt));
  GNUNET_assert (0 == TALER_amount_cmp (coin_fee,
                                        &coin_fee_wt));
}


/**
 * Callback that should be called with the WT data.
 */
static void
cb_wtid_check (void *cls,
               const struct TALER_WireTransferIdentifierRawP *wtid,
               const struct TALER_Amount *coin_contribution,
               const struct TALER_Amount *coin_fee,
               struct GNUNET_TIME_Absolute execution_time)
{
  GNUNET_assert (cls == &cb_wtid_never);
  GNUNET_assert (0 == memcmp (wtid,
                              &wtid_wt,
                              sizeof (struct TALER_WireTransferIdentifierRawP)));
  GNUNET_assert (execution_time.abs_value_us ==
                 execution_time_wt.abs_value_us);
  GNUNET_assert (0 == TALER_amount_cmp (coin_contribution,
                                        &coin_value_wt));
  GNUNET_assert (0 == TALER_amount_cmp (coin_fee,
                                        &coin_fee_wt));
}


/**
 * Here #deposit_cb() will store the row ID of the deposit.
 */
static unsigned long long deposit_rowid;


/**
 * Function called with details about deposits that
 * have been made.  Called in the test on the
 * deposit given in @a cls.
 *
 * @param cls closure a `struct TALER_EXCHANGEDB_Deposit *`
 * @param rowid unique ID for the deposit in our DB, used for marking
 *              it as 'tiny' or 'done'
 * @param merchant_pub public key of the merchant
 * @param coin_pub public key of the coin
 * @param amount_with_fee amount that was deposited including fee
 * @param deposit_fee amount the exchange gets to keep as transaction fees
 * @param transaction_id unique transaction ID chosen by the merchant
 * @param h_contract hash of the contract between merchant and customer
 * @param wire_deadline by which the merchant adviced that he would like the
 *        wire transfer to be executed
 * @param wire wire details for the merchant, NULL from iterate_matching_deposits()
 * @return #GNUNET_OK to continue to iterate, #GNUNET_SYSERR if deposit does
 *         not match our expectations
 */
static int
deposit_cb (void *cls,
            unsigned long long rowid,
            const struct TALER_MerchantPublicKeyP *merchant_pub,
            const struct TALER_CoinSpendPublicKeyP *coin_pub,
            const struct TALER_Amount *amount_with_fee,
            const struct TALER_Amount *deposit_fee,
            uint64_t transaction_id,
            const struct GNUNET_HashCode *h_contract,
            struct GNUNET_TIME_Absolute wire_deadline,
            const json_t *wire)
{
  struct TALER_EXCHANGEDB_Deposit *deposit = cls;
  struct GNUNET_HashCode h_wire;

  deposit_rowid = rowid;
  if (NULL != wire)
    TALER_JSON_hash (wire, &h_wire);
  if ( (0 != memcmp (merchant_pub,
                     &deposit->merchant_pub,
                     sizeof (struct TALER_MerchantPublicKeyP))) ||
       (0 != TALER_amount_cmp (amount_with_fee,
                               &deposit->amount_with_fee)) ||
       (0 != TALER_amount_cmp (deposit_fee,
                               &deposit->deposit_fee)) ||
       (0 != memcmp (h_contract,
                     &deposit->h_contract,
                     sizeof (struct GNUNET_HashCode))) ||
       (0 != memcmp (coin_pub,
                     &deposit->coin.coin_pub,
                     sizeof (struct TALER_CoinSpendPublicKeyP))) ||
       (transaction_id != deposit->transaction_id) ||
       ( (NULL != wire) &&
         (0 != memcmp (&h_wire,
                       &deposit->h_wire,
                       sizeof (struct GNUNET_HashCode))) ) )
  {
    GNUNET_break (0);
    return GNUNET_SYSERR;
  }

  return GNUNET_OK;
}





/**
 * Main function that will be run by the scheduler.
 *
 * @param cls closure with config
 */
static void
run (void *cls)
{
  struct GNUNET_CONFIGURATION_Handle *cfg = cls;
  struct TALER_EXCHANGEDB_Session *session;
  struct TALER_ReservePublicKeyP reserve_pub;
  struct DenomKeyPair *dkp;
  struct TALER_EXCHANGEDB_CollectableBlindcoin cbc;
  struct TALER_EXCHANGEDB_CollectableBlindcoin cbc2;
  struct TALER_EXCHANGEDB_ReserveHistory *rh;
  struct TALER_EXCHANGEDB_ReserveHistory *rh_head;
  struct TALER_EXCHANGEDB_BankTransfer *bt;
  struct TALER_EXCHANGEDB_CollectableBlindcoin *withdraw;
  struct TALER_EXCHANGEDB_Deposit deposit;
  struct TALER_EXCHANGEDB_Deposit deposit2;
  struct TALER_EXCHANGEDB_Refund refund;
  struct TALER_EXCHANGEDB_TransactionList *tl;
  struct TALER_EXCHANGEDB_TransactionList *tlp;
  struct TALER_WireTransferIdentifierRawP wtid;
  json_t *wire;
  json_t *just;
  unsigned int matched;
  const char * const json_wire_str =
      "{ \"type\":\"SEPA\", \
\"IBAN\":\"DE67830654080004822650\",                    \
\"name\":\"GNUnet e.V.\",                               \
\"bic\":\"GENODEF1SLR\",                                 \
\"edate\":\"1449930207000\",                                \
\"r\":123456789,                                     \
\"address\": \"foobar\"}";
  unsigned int cnt;

  dkp = NULL;
  rh = NULL;
  wire = NULL;
  session = NULL;
  ZR_BLK (&cbc);
  ZR_BLK (&cbc2);
  if (NULL ==
      (plugin = TALER_EXCHANGEDB_plugin_load (cfg)))
  {
    result = 77;
    return;
  }
  if (GNUNET_OK !=
      plugin->create_tables (plugin->cls))
  {
    result = 77;
    goto drop;
  }
  if (NULL !=
      (session = plugin->get_session (plugin->cls)))
  {
    if (GNUNET_OK !=
        plugin->drop_tables (plugin->cls,
                             session))
    {
      result = 77;
      goto drop;
    }
  }
  if (GNUNET_OK !=
      plugin->create_tables (plugin->cls))
  {
    result = 77;
    goto drop;
  }
  if (NULL ==
      (session = plugin->get_session (plugin->cls)))
  {
    result = 77;
    goto drop;
  }
  RND_BLK (&reserve_pub);
  GNUNET_assert (GNUNET_OK ==
                 TALER_string_to_amount (CURRENCY ":1.000010",
                                         &value));
  GNUNET_assert (GNUNET_OK ==
                 TALER_string_to_amount (CURRENCY ":0.000010",
                                         &fee_withdraw));
  GNUNET_assert (GNUNET_OK ==
                 TALER_string_to_amount (CURRENCY ":0.000010",
                                         &fee_deposit));
  GNUNET_assert (GNUNET_OK ==
                 TALER_string_to_amount (CURRENCY ":0.000010",
                                         &fee_refresh));
  GNUNET_assert (GNUNET_OK ==
                 TALER_string_to_amount (CURRENCY ":0.000010",
                                         &fee_refund));
  GNUNET_assert (GNUNET_OK ==
                 TALER_string_to_amount (CURRENCY ":1.000010",
                                         &amount_with_fee));

  result = 4;
  just = json_loads ("{ \"justification\":\"1\" }", 0, NULL);
  FAILIF (GNUNET_OK !=
          plugin->reserves_in_insert (plugin->cls,
                                      session,
                                      &reserve_pub,
                                      &value,
                                      GNUNET_TIME_absolute_get (),
				      just));
  json_decref (just);
  FAILIF (GNUNET_OK !=
          check_reserve (session,
                         &reserve_pub,
                         value.value,
                         value.fraction,
                         value.currency));
  just = json_loads ("{ \"justification\":\"2\" }", 0, NULL);
  FAILIF (GNUNET_OK !=
          plugin->reserves_in_insert (plugin->cls,
                                      session,
                                      &reserve_pub,
                                      &value,
                                      GNUNET_TIME_absolute_get (),
				      just));
  json_decref (just);
  FAILIF (GNUNET_OK !=
          check_reserve (session,
                         &reserve_pub,
                         value.value * 2,
                         value.fraction * 2,
                         value.currency));
  result = 5;
  dkp = create_denom_key_pair (1024, session,
                               &value,
                               &fee_withdraw,
                               &fee_deposit,
                               &fee_refresh,
			       &fee_refund);
  RND_BLK(&cbc.h_coin_envelope);
  RND_BLK(&cbc.reserve_sig);
  cbc.denom_pub = dkp->pub;
  cbc.sig.rsa_signature
    = GNUNET_CRYPTO_rsa_sign_fdh (dkp->priv.rsa_private_key,
                                  &cbc.h_coin_envelope);
  cbc.reserve_pub = reserve_pub;
  cbc.amount_with_fee = value;
  GNUNET_assert (GNUNET_OK ==
                 TALER_amount_get_zero (CURRENCY, &cbc.withdraw_fee));
  FAILIF (GNUNET_OK !=
          plugin->insert_withdraw_info (plugin->cls,
                                        session,
                                        &cbc));
  FAILIF (GNUNET_OK !=
          check_reserve (session,
                         &reserve_pub,
                         value.value,
                         value.fraction,
                         value.currency));
  FAILIF (GNUNET_YES !=
          plugin->get_withdraw_info (plugin->cls,
                                     session,
                                     &cbc.h_coin_envelope,
                                     &cbc2));
  FAILIF (NULL == cbc2.denom_pub.rsa_public_key);
  FAILIF (0 != memcmp (&cbc2.reserve_sig,
                       &cbc.reserve_sig,
                       sizeof (cbc2.reserve_sig)));
  FAILIF (0 != memcmp (&cbc2.reserve_pub,
                       &cbc.reserve_pub,
                       sizeof (cbc2.reserve_pub)));
  result = 6;
  FAILIF (GNUNET_OK !=
          GNUNET_CRYPTO_rsa_verify (&cbc.h_coin_envelope,
                                    cbc2.sig.rsa_signature,
                                    dkp->pub.rsa_public_key));
  result = 7;
  rh = plugin->get_reserve_history (plugin->cls,
                                    session,
                                    &reserve_pub);
  FAILIF (NULL == rh);
  rh_head = rh;
  for (cnt=0; NULL != rh_head; rh_head=rh_head->next, cnt++)
  {
    switch (rh_head->type)
    {
    case TALER_EXCHANGEDB_RO_BANK_TO_EXCHANGE:
      bt = rh_head->details.bank;
      FAILIF (0 != memcmp (&bt->reserve_pub,
                           &reserve_pub,
                           sizeof (reserve_pub)));
      /* this is the amount we trasferred twice*/
      FAILIF (1 != bt->amount.value);
      FAILIF (10 != bt->amount.fraction);
      FAILIF (0 != strcmp (CURRENCY, bt->amount.currency));
      FAILIF (NULL == bt->wire);
      break;
    case TALER_EXCHANGEDB_RO_WITHDRAW_COIN:
      withdraw = rh_head->details.withdraw;
      FAILIF (0 != memcmp (&withdraw->reserve_pub,
                           &reserve_pub,
                           sizeof (reserve_pub)));
      FAILIF (0 != memcmp (&withdraw->h_coin_envelope,
                           &cbc.h_coin_envelope,
                           sizeof (cbc.h_coin_envelope)));
      break;
    }
  }
  FAILIF (3 != cnt);
  /* Tests for deposits */
  memset (&deposit, 0, sizeof (deposit));
  RND_BLK (&deposit.coin.coin_pub);
  deposit.coin.denom_pub = dkp->pub;
  deposit.coin.denom_sig = cbc.sig;
  RND_BLK (&deposit.csig);
  RND_BLK (&deposit.merchant_pub);
  RND_BLK (&deposit.h_contract);
  wire = json_loads (json_wire_str, 0, NULL);
  TALER_JSON_hash (wire,
                   &deposit.h_wire);
  deposit.wire = wire;
  deposit.transaction_id =
      GNUNET_CRYPTO_random_u64 (GNUNET_CRYPTO_QUALITY_WEAK, UINT64_MAX);
  deposit.amount_with_fee = value;
  GNUNET_assert (GNUNET_OK ==
                 TALER_amount_get_zero (CURRENCY, &deposit.deposit_fee));
  result = 8;
  FAILIF (GNUNET_OK !=
          plugin->insert_deposit (plugin->cls,
                                  session, &deposit));
  FAILIF (GNUNET_YES !=
          plugin->have_deposit (plugin->cls,
                                session,
                                &deposit));
  result = 9;
  FAILIF (1 !=
          plugin->iterate_matching_deposits (plugin->cls,
                                             session,
                                             &deposit.h_wire,
                                             &deposit.merchant_pub,
                                             &deposit_cb, &deposit,
                                             2));

  FAILIF (1 !=
          plugin->get_ready_deposit (plugin->cls,
                                     session,
                                     &deposit_cb,
                                     &deposit));
  FAILIF (GNUNET_OK !=
          plugin->start (plugin->cls,
                         session));
  FAILIF (GNUNET_OK !=
          plugin->mark_deposit_tiny (plugin->cls,
                                     session,
                                     deposit_rowid));
  FAILIF (0 !=
          plugin->get_ready_deposit (plugin->cls,
                                     session,
                                     &deposit_cb,
                                     &deposit));
  plugin->rollback (plugin->cls,
                    session);
  FAILIF (1 !=
          plugin->get_ready_deposit (plugin->cls,
                                     session,
                                     &deposit_cb,
                                     &deposit));
  FAILIF (GNUNET_OK !=
          plugin->start (plugin->cls,
                         session));
  FAILIF (GNUNET_NO !=
          plugin->test_deposit_done (plugin->cls,
                                     session,
                                     &deposit));
  FAILIF (GNUNET_OK !=
          plugin->mark_deposit_done (plugin->cls,
                                     session,
                                     deposit_rowid));
  FAILIF (GNUNET_OK !=
          plugin->commit (plugin->cls,
                          session));
  FAILIF (GNUNET_YES !=
          plugin->test_deposit_done (plugin->cls,
                                     session,
                                     &deposit));

  result = 10;
  deposit2 = deposit;
  deposit2.transaction_id++;     /* should fail if transaction id is different */
  FAILIF (GNUNET_NO !=
          plugin->have_deposit (plugin->cls,
                                session,
                                &deposit2));
  deposit2.transaction_id = deposit.transaction_id;
  RND_BLK (&deposit2.merchant_pub); /* should fail if merchant is different */
  FAILIF (GNUNET_NO !=
          plugin->have_deposit (plugin->cls,
                                session,
                                &deposit2));
  deposit2.merchant_pub = deposit.merchant_pub;
  RND_BLK (&deposit2.coin.coin_pub); /* should fail if coin is different */
  FAILIF (GNUNET_NO !=
          plugin->have_deposit (plugin->cls,
                                session,
                                &deposit2));
  FAILIF (GNUNET_OK != test_melting (session));


  /* test insert_refund! */
  refund.coin = deposit.coin;
  refund.merchant_pub = deposit.merchant_pub;
  RND_BLK (&refund.merchant_sig);
  refund.h_contract = deposit.h_contract;
  refund.transaction_id = deposit.transaction_id;
  refund.rtransaction_id = GNUNET_CRYPTO_random_u64 (GNUNET_CRYPTO_QUALITY_WEAK, UINT64_MAX);
  refund.refund_amount = deposit.amount_with_fee;
  GNUNET_assert (GNUNET_OK ==
                 TALER_amount_get_zero (CURRENCY, &refund.refund_fee));
  FAILIF (GNUNET_OK !=
          plugin->insert_refund (plugin->cls,
                                 session,
                                 &refund));

  tl = plugin->get_coin_transactions (plugin->cls,
                                      session,
                                      &refund.coin.coin_pub);
  GNUNET_assert (NULL != tl);
  matched = 0;
  for (tlp = tl; NULL != tlp; tlp = tlp->next)
  {
    switch (tlp->type)
    {
    case TALER_EXCHANGEDB_TT_DEPOSIT:
      {
        struct TALER_EXCHANGEDB_Deposit *have = tlp->details.deposit;

        FAILIF (0 != memcmp (&have->coin.coin_pub,
                             &deposit.coin.coin_pub,
                             sizeof (struct TALER_CoinSpendPublicKeyP)));
        /* Note: we're not comparing the denomination keys, as there is
           still the question of whether we should even bother exporting
           them here. */
        FAILIF (0 != memcmp (&have->csig,
                             &deposit.csig,
                             sizeof (struct TALER_CoinSpendSignatureP)));
        FAILIF (0 != memcmp (&have->merchant_pub,
                             &deposit.merchant_pub,
                             sizeof (struct TALER_MerchantPublicKeyP)));
        FAILIF (0 != memcmp (&have->h_contract,
                             &deposit.h_contract,
                             sizeof (struct GNUNET_HashCode)));
        FAILIF (0 != memcmp (&have->h_wire,
                             &deposit.h_wire,
                             sizeof (struct GNUNET_HashCode)));
        /* Note: not comparing 'wire', seems truly redundant and would be tricky */
        FAILIF (have->transaction_id != deposit.transaction_id);
        FAILIF (have->timestamp.abs_value_us != deposit.timestamp.abs_value_us);
        FAILIF (have->refund_deadline.abs_value_us != deposit.refund_deadline.abs_value_us);
        FAILIF (have->wire_deadline.abs_value_us != deposit.wire_deadline.abs_value_us);
        FAILIF (0 != TALER_amount_cmp (&have->amount_with_fee,
                                       &deposit.amount_with_fee));
        FAILIF (0 != TALER_amount_cmp (&have->deposit_fee,
                                       &deposit.deposit_fee));
        matched |= 1;
        break;
      }
#if 0
      /* this coin pub was actually never melted... */
    case TALER_EXCHANGEDB_TT_REFRESH_MELT:
      FAILIF (0 != memcmp (&melt,
                           &tlp->details.melt,
                           sizeof (struct TALER_EXCHANGEDB_RefreshMelt)));
      matched |= 2;
      break;
#endif
    case TALER_EXCHANGEDB_TT_REFUND:
      {
        struct TALER_EXCHANGEDB_Refund *have = tlp->details.refund;

        FAILIF (0 != memcmp (&have->coin.coin_pub,
                             &refund.coin.coin_pub,
                             sizeof (struct TALER_CoinSpendPublicKeyP)));
        /* Note: we're not comparing the denomination keys, as there is
           still the question of whether we should even bother exporting
           them here. */
        FAILIF (0 != memcmp (&have->merchant_pub,
                             &refund.merchant_pub,
                             sizeof (struct TALER_MerchantPublicKeyP)));
        FAILIF (0 != memcmp (&have->merchant_sig,
                             &refund.merchant_sig,
                             sizeof (struct TALER_MerchantSignatureP)));
        FAILIF (0 != memcmp (&have->h_contract,
                             &refund.h_contract,
                             sizeof (struct GNUNET_HashCode)));
        FAILIF (have->transaction_id != refund.transaction_id);
        FAILIF (have->rtransaction_id != refund.rtransaction_id);
        FAILIF (0 != TALER_amount_cmp (&have->refund_amount,
                                       &refund.refund_amount));
        FAILIF (0 != TALER_amount_cmp (&have->refund_fee,
                                       &refund.refund_fee));
        matched |= 4;
        break;
      }
    default:
      FAILIF (1);
      break;
    }
  }
  FAILIF (5 != matched);

  plugin->free_coin_transaction_list (plugin->cls,
                                      tl);

  FAILIF (GNUNET_OK != test_wire_prepare (session));

  /* setup values for wire transfer aggregation data */
  memset (&wtid, 42, sizeof (wtid));
  memset (&merchant_pub_wt, 43, sizeof (merchant_pub_wt));
  memset (&h_wire_wt, 44, sizeof (h_wire_wt));
  memset (&h_contract_wt, 45, sizeof (h_contract_wt));
  memset (&coin_pub_wt, 46, sizeof (coin_pub_wt));
  transaction_id_wt = 47;
  execution_time_wt = GNUNET_TIME_absolute_get ();
  memset (&merchant_pub_wt, 48, sizeof (merchant_pub_wt));
  GNUNET_assert (GNUNET_OK ==
                 TALER_string_to_amount (CURRENCY "KUDOS:1.000010",
                                         &coin_value_wt));
  GNUNET_assert (GNUNET_OK ==
                 TALER_string_to_amount (CURRENCY "KUDOS:0.000010",
                                         &coin_fee_wt));
  GNUNET_assert (GNUNET_OK ==
                 TALER_string_to_amount (CURRENCY "KUDOS:1.000000",
                                         &transfer_value_wt));


  FAILIF (GNUNET_NO !=
          plugin->lookup_wire_transfer (plugin->cls,
                                        session,
                                        &wtid_wt,
                                        &cb_wt_never,
                                        NULL));
  FAILIF (GNUNET_NO !=
          plugin->wire_lookup_deposit_wtid (plugin->cls,
                                            session,
                                            &h_contract_wt,
                                            &h_wire_wt,
                                            &coin_pub_wt,
                                            &merchant_pub_wt,
                                            transaction_id_wt,
                                            &cb_wtid_never,
                                            NULL));
  /* insert WT data */
  FAILIF (GNUNET_OK !=
          plugin->insert_aggregation_tracking (plugin->cls,
                                               session,
                                               &wtid_wt,
                                               &merchant_pub_wt,
                                               &h_wire_wt,
                                               &h_contract_wt,
                                               transaction_id_wt,
                                               execution_time_wt,
                                               &coin_pub_wt,
                                               &coin_value_wt,
                                               &coin_fee_wt));
  FAILIF (GNUNET_OK !=
          plugin->lookup_wire_transfer (plugin->cls,
                                        session,
                                        &wtid_wt,
                                        &cb_wt_check,
                                        &cb_wt_never));
  FAILIF (GNUNET_OK !=
          plugin->wire_lookup_deposit_wtid (plugin->cls,
                                            session,
                                            &h_contract_wt,
                                            &h_wire_wt,
                                            &coin_pub_wt,
                                            &merchant_pub_wt,
                                            transaction_id_wt,
                                            &cb_wtid_check,
                                            &cb_wtid_never));
  result = 0;

 drop:
  if (NULL != wire)
    json_decref (wire);
  if (NULL != rh)
    plugin->free_reserve_history (plugin->cls,
                                  rh);
  rh = NULL;
  if (NULL != session)
    GNUNET_break (GNUNET_OK ==
                  plugin->drop_tables (plugin->cls,
                                       session));
  if (NULL != dkp)
    destroy_denom_key_pair (dkp);
  if (NULL != cbc.sig.rsa_signature)
    GNUNET_CRYPTO_rsa_signature_free (cbc.sig.rsa_signature);
  if (NULL != cbc2.denom_pub.rsa_public_key)
    GNUNET_CRYPTO_rsa_public_key_free (cbc2.denom_pub.rsa_public_key);
  if (NULL != cbc2.sig.rsa_signature)
    GNUNET_CRYPTO_rsa_signature_free (cbc2.sig.rsa_signature);
  dkp = NULL;
  TALER_EXCHANGEDB_plugin_unload (plugin);
  plugin = NULL;
}


int
main (int argc,
      char *const argv[])
{
  const char *plugin_name;
  char *config_filename;
  char *testname;
  struct GNUNET_CONFIGURATION_Handle *cfg;

  result = -1;
  if (NULL == (plugin_name = strrchr (argv[0], (int) '-')))
  {
    GNUNET_break (0);
    return -1;
  }
  GNUNET_log_setup (argv[0],
                    "WARNING",
                    NULL);
  plugin_name++;
  (void) GNUNET_asprintf (&testname,
                          "test-exchange-db-%s", plugin_name);
  (void) GNUNET_asprintf (&config_filename,
                          "%s.conf", testname);
  cfg = GNUNET_CONFIGURATION_create ();
  if (GNUNET_OK !=
      GNUNET_CONFIGURATION_parse (cfg,
                                  config_filename))
  {
    GNUNET_break (0);
    GNUNET_free (config_filename);
    GNUNET_free (testname);
    return 2;
  }
  GNUNET_SCHEDULER_run (&run, cfg);
  GNUNET_CONFIGURATION_destroy (cfg);
  GNUNET_free (config_filename);
  GNUNET_free (testname);
  return result;
}