aboutsummaryrefslogtreecommitdiff
path: root/src/mint-lib/test_mint_api.c
blob: b243cc2cfb27a73742db1a01ac692cfc5fd76bec (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
1343
1344
1345
1346
1347
1348
1349
1350
1351
1352
1353
1354
1355
1356
1357
1358
1359
1360
1361
1362
1363
1364
1365
1366
1367
1368
1369
1370
1371
1372
1373
1374
1375
1376
1377
1378
1379
1380
1381
1382
1383
1384
1385
1386
1387
1388
1389
1390
1391
1392
1393
1394
1395
1396
1397
1398
1399
1400
1401
1402
1403
1404
1405
1406
1407
1408
1409
1410
1411
1412
1413
1414
1415
1416
1417
1418
1419
1420
1421
1422
1423
1424
1425
1426
1427
1428
1429
1430
1431
1432
1433
1434
1435
1436
1437
1438
1439
1440
1441
1442
1443
1444
1445
1446
1447
1448
1449
1450
1451
1452
1453
1454
1455
1456
1457
1458
1459
1460
1461
1462
1463
1464
1465
1466
1467
1468
1469
1470
1471
1472
1473
1474
1475
1476
1477
1478
1479
1480
1481
1482
1483
1484
1485
1486
1487
1488
1489
1490
1491
1492
1493
1494
1495
1496
1497
1498
1499
1500
1501
1502
1503
1504
1505
1506
1507
1508
1509
1510
1511
1512
1513
1514
1515
1516
1517
1518
1519
1520
1521
1522
1523
1524
1525
1526
1527
1528
1529
1530
1531
1532
1533
1534
1535
1536
1537
1538
1539
1540
1541
1542
1543
1544
1545
1546
1547
1548
1549
1550
1551
1552
1553
1554
1555
1556
1557
1558
1559
1560
1561
1562
1563
1564
1565
1566
1567
1568
1569
1570
1571
1572
1573
1574
1575
1576
1577
1578
1579
1580
1581
1582
1583
1584
1585
1586
1587
1588
1589
1590
1591
1592
1593
1594
1595
1596
1597
1598
1599
1600
1601
1602
1603
1604
1605
1606
1607
1608
1609
1610
1611
1612
1613
1614
1615
1616
1617
1618
1619
1620
1621
1622
1623
1624
1625
1626
1627
1628
1629
1630
1631
1632
1633
1634
1635
1636
1637
1638
1639
1640
1641
1642
1643
1644
1645
1646
1647
1648
1649
1650
1651
1652
1653
1654
1655
1656
1657
1658
1659
1660
1661
1662
1663
1664
1665
1666
1667
1668
1669
1670
1671
1672
1673
1674
1675
1676
1677
1678
1679
1680
1681
1682
1683
1684
1685
1686
1687
1688
1689
1690
1691
1692
1693
1694
1695
1696
1697
1698
1699
1700
1701
1702
1703
1704
1705
1706
1707
1708
1709
1710
1711
1712
1713
1714
1715
1716
1717
1718
1719
1720
1721
1722
1723
1724
1725
1726
1727
1728
1729
1730
1731
1732
1733
1734
1735
1736
1737
1738
1739
1740
1741
1742
1743
1744
1745
1746
1747
1748
1749
1750
1751
1752
1753
1754
1755
1756
1757
1758
1759
1760
1761
1762
1763
1764
1765
1766
1767
1768
1769
1770
1771
1772
1773
1774
1775
1776
1777
1778
1779
1780
1781
1782
1783
1784
1785
1786
1787
1788
1789
1790
1791
1792
1793
1794
1795
1796
1797
1798
1799
1800
1801
1802
1803
1804
1805
1806
1807
1808
1809
1810
1811
1812
1813
1814
1815
1816
1817
1818
1819
1820
1821
1822
1823
1824
1825
1826
1827
1828
1829
1830
1831
1832
1833
1834
1835
1836
1837
1838
1839
1840
1841
1842
1843
1844
1845
1846
1847
1848
1849
1850
1851
1852
1853
1854
1855
1856
1857
1858
1859
1860
1861
1862
1863
1864
1865
1866
1867
1868
1869
1870
1871
1872
1873
1874
1875
1876
1877
1878
1879
1880
1881
1882
1883
1884
1885
1886
1887
1888
1889
1890
1891
1892
1893
1894
1895
1896
1897
1898
1899
1900
1901
1902
1903
1904
1905
1906
1907
1908
1909
1910
1911
1912
1913
1914
1915
1916
1917
1918
1919
1920
1921
1922
1923
1924
1925
1926
1927
1928
1929
1930
1931
1932
1933
1934
1935
1936
1937
1938
1939
1940
1941
1942
1943
1944
1945
1946
1947
1948
1949
1950
1951
1952
1953
1954
1955
1956
1957
1958
1959
1960
1961
1962
1963
1964
1965
1966
1967
1968
1969
1970
1971
1972
1973
1974
1975
1976
1977
1978
1979
1980
1981
1982
1983
1984
1985
1986
1987
1988
1989
1990
1991
1992
1993
1994
1995
1996
1997
1998
1999
2000
2001
2002
2003
2004
2005
2006
2007
2008
2009
2010
2011
2012
2013
2014
2015
2016
2017
2018
2019
2020
2021
2022
2023
2024
2025
2026
2027
2028
2029
2030
2031
2032
2033
2034
2035
2036
2037
2038
2039
2040
2041
2042
2043
2044
2045
2046
2047
2048
2049
2050
2051
2052
2053
2054
2055
2056
2057
2058
2059
2060
2061
2062
2063
2064
2065
2066
2067
2068
2069
2070
2071
2072
2073
2074
2075
2076
2077
2078
2079
2080
2081
2082
2083
2084
2085
2086
2087
2088
2089
2090
2091
2092
2093
2094
2095
2096
2097
2098
2099
2100
2101
2102
2103
2104
2105
2106
2107
2108
2109
2110
2111
2112
2113
2114
2115
2116
2117
2118
2119
2120
2121
2122
2123
2124
2125
2126
2127
2128
2129
2130
2131
2132
2133
2134
2135
2136
2137
2138
2139
2140
2141
2142
2143
2144
2145
2146
2147
2148
2149
2150
2151
2152
2153
2154
2155
2156
2157
2158
2159
2160
2161
2162
2163
2164
2165
2166
2167
2168
2169
2170
2171
2172
2173
2174
2175
2176
2177
2178
2179
2180
2181
2182
2183
2184
2185
2186
2187
2188
2189
2190
2191
2192
2193
2194
2195
2196
2197
2198
2199
2200
2201
2202
2203
2204
2205
2206
2207
2208
2209
2210
2211
2212
2213
2214
2215
2216
2217
2218
2219
2220
2221
2222
2223
2224
2225
2226
2227
2228
2229
2230
2231
2232
2233
2234
2235
2236
2237
2238
2239
2240
2241
2242
2243
2244
2245
2246
2247
2248
2249
2250
2251
2252
2253
2254
2255
2256
2257
2258
2259
2260
2261
2262
2263
2264
2265
2266
2267
2268
2269
2270
2271
2272
2273
2274
2275
2276
2277
2278
2279
2280
2281
2282
2283
2284
2285
2286
2287
2288
2289
2290
2291
2292
2293
2294
2295
2296
2297
2298
2299
2300
2301
2302
2303
2304
2305
2306
2307
2308
2309
2310
2311
2312
2313
2314
2315
2316
2317
2318
2319
2320
2321
2322
2323
2324
2325
2326
2327
2328
2329
2330
2331
2332
2333
2334
2335
2336
2337
2338
2339
2340
2341
2342
2343
2344
2345
2346
2347
2348
2349
2350
2351
2352
2353
2354
2355
2356
2357
2358
2359
2360
2361
2362
2363
2364
2365
2366
2367
2368
2369
2370
2371
2372
2373
2374
2375
2376
2377
2378
2379
2380
2381
2382
2383
2384
2385
2386
2387
2388
2389
2390
2391
2392
2393
2394
2395
2396
2397
2398
2399
2400
2401
2402
2403
2404
2405
2406
2407
2408
2409
2410
2411
2412
2413
2414
2415
2416
2417
2418
2419
2420
2421
2422
2423
2424
2425
2426
2427
2428
2429
2430
2431
2432
2433
2434
2435
2436
2437
2438
2439
2440
2441
2442
2443
2444
2445
2446
2447
2448
2449
2450
2451
2452
2453
2454
2455
2456
2457
2458
2459
2460
2461
2462
2463
2464
2465
2466
2467
2468
2469
2470
2471
2472
2473
2474
2475
2476
2477
2478
2479
2480
2481
2482
2483
2484
2485
2486
2487
2488
2489
2490
2491
2492
2493
2494
2495
2496
2497
2498
2499
2500
2501
2502
2503
2504
2505
2506
2507
2508
2509
2510
2511
2512
2513
2514
2515
2516
2517
2518
2519
2520
2521
2522
2523
2524
2525
2526
2527
2528
2529
2530
2531
2532
2533
2534
2535
2536
2537
2538
2539
2540
2541
2542
2543
2544
2545
2546
2547
2548
2549
2550
2551
2552
2553
2554
2555
2556
2557
2558
2559
2560
2561
2562
2563
2564
2565
2566
2567
2568
2569
2570
2571
2572
2573
2574
2575
2576
2577
2578
2579
2580
2581
2582
2583
2584
2585
2586
2587
2588
2589
2590
2591
2592
2593
2594
2595
2596
2597
2598
2599
/*
  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 mint/test_mint_api.c
 * @brief testcase to test mint's HTTP API interface
 * @author Sree Harsha Totakura <sreeharsha@totakura.in>
 * @author Christian Grothoff
 */
#include "platform.h"
#include "taler_util.h"
#include "taler_signatures.h"
#include "taler_mint_service.h"
#include <gnunet/gnunet_util_lib.h>
#include <microhttpd.h>

/**
 * Is the configuration file is set to include wire format 'test'?
 */
#define WIRE_TEST 1

/**
 * Is the configuration file is set to include wire format 'sepa'?
 */
#define WIRE_SEPA 1

/**
 * Main execution context for the main loop.
 */
static struct TALER_MINT_Context *ctx;

/**
 * Handle to access the mint.
 */
static struct TALER_MINT_Handle *mint;

/**
 * Task run on shutdown.
 */
static struct GNUNET_SCHEDULER_Task *shutdown_task;

/**
 * Task that runs the main event loop.
 */
static struct GNUNET_SCHEDULER_Task *ctx_task;

/**
 * Result of the testcases, #GNUNET_OK on success
 */
static int result;


/**
 * Opcodes for the interpreter.
 */
enum OpCode
{
  /**
   * Termination code, stops the interpreter loop (with success).
   */
  OC_END = 0,

  /**
   * Add funds to a reserve by (faking) incoming wire transfer.
   */
  OC_ADMIN_ADD_INCOMING,

  /**
   * Check status of a reserve.
   */
  OC_WITHDRAW_STATUS,

  /**
   * Withdraw a coin from a reserve.
   */
  OC_WITHDRAW_SIGN,

  /**
   * Deposit a coin (pay with it).
   */
  OC_DEPOSIT,

  /**
   * Melt a (set of) coins.
   */
  OC_REFRESH_MELT,

  /**
   * Complete melting session by withdrawing melted coins.
   */
  OC_REFRESH_REVEAL,

  /**
   * Verify mint's /refresh/link by linking original private key to
   * results from #OC_REFRESH_REVEAL step.
   */
  OC_REFRESH_LINK,

  /**
   * Verify the mint's /wire-method.
   */
  OC_WIRE,

  /**
   * Verify mint's /wire/deposits method.
   */
  OC_WIRE_DEPOSITS,

  /**
   * Verify mint's /deposit/wtid method.
   */
  OC_DEPOSIT_WTID

};


/**
 * Structure specifying details about a coin to be melted.
 * Used in a NULL-terminated array as part of command
 * specification.
 */
struct MeltDetails
{

  /**
   * Amount to melt (including fee).
   */
  const char *amount;

  /**
   * Reference to reserve_withdraw operations for coin to
   * be used for the /refresh/melt operation.
   */
  const char *coin_ref;

};


/**
 * Information about a fresh coin generated by the refresh operation.
 */
struct FreshCoin
{

  /**
   * If @e amount is NULL, this specifies the denomination key to
   * use.  Otherwise, this will be set (by the interpreter) to the
   * denomination PK matching @e amount.
   */
  const struct TALER_MINT_DenomPublicKey *pk;

  /**
   * Set (by the interpreter) to the mint's signature over the
   * coin's public key.
   */
  struct TALER_DenominationSignature sig;

  /**
   * Set (by the interpreter) to the coin's private key.
   */
  struct TALER_CoinSpendPrivateKeyP coin_priv;

};


/**
 * Details for a mint operation to execute.
 */
struct Command
{
  /**
   * Opcode of the command.
   */
  enum OpCode oc;

  /**
   * Label for the command, can be NULL.
   */
  const char *label;

  /**
   * Which response code do we expect for this command?
   */
  unsigned int expected_response_code;

  /**
   * Details about the command.
   */
  union
  {

    /**
     * Information for a #OC_ADMIN_ADD_INCOMING command.
     */
    struct
    {

      /**
       * Label to another admin_add_incoming command if we
       * should deposit into an existing reserve, NULL if
       * a fresh reserve should be created.
       */
      const char *reserve_reference;

      /**
       * String describing the amount to add to the reserve.
       */
      const char *amount;

      /**
       * Wire details (JSON).
       */
      const char *wire;

      /**
       * Set (by the interpreter) to the reserve's private key
       * we used to fill the reserve.
       */
      struct TALER_ReservePrivateKeyP reserve_priv;

      /**
       * Set to the API's handle during the operation.
       */
      struct TALER_MINT_AdminAddIncomingHandle *aih;

    } admin_add_incoming;

    /**
     * Information for a #OC_WITHDRAW_STATUS command.
     */
    struct
    {

      /**
       * Label to the #OC_ADMIN_ADD_INCOMING command which
       * created the reserve.
       */
      const char *reserve_reference;

      /**
       * Set to the API's handle during the operation.
       */
      struct TALER_MINT_ReserveStatusHandle *wsh;

      /**
       * Expected reserve balance.
       */
      const char *expected_balance;

    } reserve_status;

    /**
     * Information for a #OC_WITHDRAW_SIGN command.
     */
    struct
    {

      /**
       * Which reserve should we withdraw from?
       */
      const char *reserve_reference;

      /**
       * String describing the denomination value we should withdraw.
       * A corresponding denomination key must exist in the mint's
       * offerings.  Can be NULL if @e pk is set instead.
       */
      const char *amount;

      /**
       * If @e amount is NULL, this specifies the denomination key to
       * use.  Otherwise, this will be set (by the interpreter) to the
       * denomination PK matching @e amount.
       */
      const struct TALER_MINT_DenomPublicKey *pk;

      /**
       * Set (by the interpreter) to the mint's signature over the
       * coin's public key.
       */
      struct TALER_DenominationSignature sig;

      /**
       * Set (by the interpreter) to the coin's private key.
       */
      struct TALER_CoinSpendPrivateKeyP coin_priv;

      /**
       * Blinding key used for the operation.
       */
      struct TALER_DenominationBlindingKey blinding_key;

      /**
       * Withdraw handle (while operation is running).
       */
      struct TALER_MINT_ReserveWithdrawHandle *wsh;

    } reserve_withdraw;

    /**
     * Information for a #OC_DEPOSIT command.
     */
    struct
    {

      /**
       * Amount to deposit.
       */
      const char *amount;

      /**
       * Reference to a reserve_withdraw operation for a coin to
       * be used for the /deposit operation.
       */
      const char *coin_ref;

      /**
       * If this @e coin_ref refers to an operation that generated
       * an array of coins, this value determines which coin to use.
       */
      unsigned int coin_idx;

      /**
       * JSON string describing the merchant's "wire details".
       */
      const char *wire_details;

      /**
       * JSON string describing the contract between the two parties.
       */
      const char *contract;

      /**
       * Transaction ID to use.
       */
      uint64_t transaction_id;

      /**
       * Relative time (to add to 'now') to compute the refund deadline.
       * Zero for no refunds.
       */
      struct GNUNET_TIME_Relative refund_deadline;

      /**
       * Set (by the interpreter) to a fresh private key of the merchant,
       * if @e refund_deadline is non-zero.
       */
      struct TALER_MerchantPrivateKeyP merchant_priv;

      /**
       * Deposit handle while operation is running.
       */
      struct TALER_MINT_DepositHandle *dh;

    } deposit;

    /**
     * Information for a #OC_REFRESH_MELT command.
     */
    struct
    {

      /**
       * Information about coins to be melted.
       */
      struct MeltDetails *melted_coins;

      /**
       * Denominations of the fresh coins to withdraw.
       */
      const char **fresh_amounts;

      /**
       * Array of the public keys corresponding to
       * the @e fresh_amounts, set by the interpreter.
       */
      const struct TALER_MINT_DenomPublicKey **fresh_pks;

      /**
       * Melt handle while operation is running.
       */
      struct TALER_MINT_RefreshMeltHandle *rmh;

      /**
       * Data used in the refresh operation, set by the interpreter.
       */
      char *refresh_data;

      /**
       * Number of bytes in @e refresh_data, set by the interpreter.
       */
      size_t refresh_data_length;

      /**
       * Set by the interpreter (upon completion) to the noreveal
       * index selected by the mint.
       */
      uint16_t noreveal_index;

    } refresh_melt;

    /**
     * Information for a #OC_REFRESH_REVEAL command.
     */
    struct
    {

      /**
       * Melt operation this is the matching reveal for.
       */
      const char *melt_ref;

      /**
       * Reveal handle while operation is running.
       */
      struct TALER_MINT_RefreshRevealHandle *rrh;

      /**
       * Number of fresh coins withdrawn, set by the interpreter.
       * Length of the @e fresh_coins array.
       */
      unsigned int num_fresh_coins;

      /**
       * Information about coins withdrawn, set by the interpreter.
       */
      struct FreshCoin *fresh_coins;

    } refresh_reveal;

    /**
     * Information for a #OC_REFRESH_LINK command.
     */
    struct
    {

      /**
       * Reveal operation this is the matching link for.
       */
      const char *reveal_ref;

      /**
       * Link handle while operation is running.
       */
      struct TALER_MINT_RefreshLinkHandle *rlh;

      /**
       * Which of the melted coins should be used for the linkage?
       */
      unsigned int coin_idx;

    } refresh_link;

    /**
     * Information for the /wire command.
     */
    struct {

      /**
       * Handle to the wire request.
       */
      struct TALER_MINT_WireHandle *wh;

      /**
       * Format we expect to see, others will be *ignored*.
       */
      const char *format;

    } wire;

    /**
     * Information for the /wire/deposits's command.
     */
    struct {

      /**
       * Handle to the wire deposits request.
       */
      struct TALER_MINT_WireDepositsHandle *wdh;

      /**
       * Reference to a /deposit/wtid command. If set, we use the
       * WTID from that command.
       */
      const char *wtid_ref;

      /**
       * WTID to use (used if @e wtid_ref is NULL).
       */
      struct TALER_WireTransferIdentifierRawP wtid;

      /* TODO: may want to add list of deposits we expected
         to see aggregated here in the future. */

    } wire_deposits;

    /**
     * Information for the /deposit/wtid command.
     */
    struct {

      /**
       * Handle to the deposit wtid request.
       */
      struct TALER_MINT_DepositWtidHandle *dwh;

      /**
       * Which /deposit operation should we obtain WTID data for?
       */
      const char *deposit_ref;

      /**
       * What is the expected total amount? Only used if
       * @e expected_response_code was #MHD_HTTP_OK.
       */
      struct TALER_Amount total_amount_expected;

      /**
       * Wire transfer identifier, set if #MHD_HTTP_OK was the response code.
       */
      struct TALER_WireTransferIdentifierRawP wtid;

    } deposit_wtid;

  } details;

};


/**
 * State of the interpreter loop.
 */
struct InterpreterState
{
  /**
   * Keys from the mint.
   */
  const struct TALER_MINT_Keys *keys;

  /**
   * Commands the interpreter will run.
   */
  struct Command *commands;

  /**
   * Interpreter task (if one is scheduled).
   */
  struct GNUNET_SCHEDULER_Task *task;

  /**
   * Instruction pointer.  Tells #interpreter_run() which
   * instruction to run next.
   */
  unsigned int ip;

};


/**
 * Task that runs the context's event loop with the GNUnet scheduler.
 *
 * @param cls unused
 * @param tc scheduler context (unused)
 */
static void
context_task (void *cls,
              const struct GNUNET_SCHEDULER_TaskContext *tc);


/**
 * Run the context task, the working set has changed.
 */
static void
trigger_context_task ()
{
  GNUNET_SCHEDULER_cancel (ctx_task);
  ctx_task = GNUNET_SCHEDULER_add_now (&context_task,
                                       NULL);
}


/**
 * The testcase failed, return with an error code.
 *
 * @param is interpreter state to clean up
 */
static void
fail (struct InterpreterState *is)
{
  result = GNUNET_SYSERR;
  GNUNET_SCHEDULER_shutdown ();
}


/**
 * Find a command by label.
 *
 * @param is interpreter state to search
 * @param label label to look for
 * @return NULL if command was not found
 */
static const struct Command *
find_command (const struct InterpreterState *is,
              const char *label)
{
  unsigned int i;
  const struct Command *cmd;

  if (NULL == label)
  {
    GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
                "Attempt to lookup command for empty label\n");
    return NULL;
  }
  for (i=0;OC_END != (cmd = &is->commands[i])->oc;i++)
    if ( (NULL != cmd->label) &&
         (0 == strcmp (cmd->label,
                       label)) )
      return cmd;
  GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
              "Command not found: %s\n",
              label);
  return NULL;
}


/**
 * Run the main interpreter loop that performs mint operations.
 *
 * @param cls contains the `struct InterpreterState`
 * @param tc scheduler context
 */
static void
interpreter_run (void *cls,
                 const struct GNUNET_SCHEDULER_TaskContext *tc);


/**
 * Function called upon completion of our /admin/add/incoming request.
 *
 * @param cls closure with the interpreter state
 * @param http_status HTTP response code, #MHD_HTTP_OK (200) for successful status request
 *                    0 if the mint's reply is bogus (fails to follow the protocol)
 * @param full_response full response from the mint (for logging, in case of errors)
 */
static void
add_incoming_cb (void *cls,
                 unsigned int http_status,
                 json_t *full_response)
{
  struct InterpreterState *is = cls;
  struct Command *cmd = &is->commands[is->ip];

  cmd->details.admin_add_incoming.aih = NULL;
  if (MHD_HTTP_OK != http_status)
  {
    GNUNET_break (0);
    fail (is);
    return;
  }
  is->ip++;
  is->task = GNUNET_SCHEDULER_add_now (&interpreter_run,
                                       is);
}


/**
 * Check if the given historic event @a h corresponds to the given
 * command @a cmd.
 *
 * @param h event in history
 * @param cmd an #OC_ADMIN_ADD_INCOMING command
 * @return #GNUNET_OK if they match, #GNUNET_SYSERR if not
 */
static int
compare_admin_add_incoming_history (const struct TALER_MINT_ReserveHistory *h,
                                    const struct Command *cmd)
{
  struct TALER_Amount amount;

  if (TALER_MINT_RTT_DEPOSIT != h->type)
  {
    GNUNET_break_op (0);
    return GNUNET_SYSERR;
  }
  GNUNET_assert (GNUNET_OK ==
                 TALER_string_to_amount (cmd->details.admin_add_incoming.amount,
                                         &amount));
  if (0 != TALER_amount_cmp (&amount,
                             &h->amount))
  {
    GNUNET_break_op (0);
    return GNUNET_SYSERR;
  }
  return GNUNET_OK;
}


/**
 * Check if the given historic event @a h corresponds to the given
 * command @a cmd.
 *
 * @param h event in history
 * @param cmd an #OC_WITHDRAW_SIGN command
 * @return #GNUNET_OK if they match, #GNUNET_SYSERR if not
 */
static int
compare_reserve_withdraw_history (const struct TALER_MINT_ReserveHistory *h,
                                  const struct Command *cmd)
{
  struct TALER_Amount amount;
  struct TALER_Amount amount_with_fee;

  if (TALER_MINT_RTT_WITHDRAWAL != h->type)
  {
    GNUNET_break_op (0);
    return GNUNET_SYSERR;
  }
  GNUNET_assert (GNUNET_OK ==
                 TALER_string_to_amount (cmd->details.reserve_withdraw.amount,
                                         &amount));
  GNUNET_assert (GNUNET_OK ==
                 TALER_amount_add (&amount_with_fee,
                                   &amount,
                                   &cmd->details.reserve_withdraw.pk->fee_withdraw));
  if (0 != TALER_amount_cmp (&amount_with_fee,
                             &h->amount))
  {
    GNUNET_break_op (0);
    return GNUNET_SYSERR;
  }
  return GNUNET_OK;
}


/**
 * Function called with the result of a /reserve/status request.
 *
 * @param cls closure with the interpreter state
 * @param http_status HTTP response code, #MHD_HTTP_OK (200) for successful status request
 *                    0 if the mint's reply is bogus (fails to follow the protocol)
 * @param[in] json original response in JSON format (useful only for diagnostics)
 * @param balance current balance in the reserve, NULL on error
 * @param history_length number of entries in the transaction history, 0 on error
 * @param history detailed transaction history, NULL on error
 */
static void
reserve_status_cb (void *cls,
                   unsigned int http_status,
                   json_t *json,
                   const struct TALER_Amount *balance,
                   unsigned int history_length,
                   const struct TALER_MINT_ReserveHistory *history)
{
  struct InterpreterState *is = cls;
  struct Command *cmd = &is->commands[is->ip];
  struct Command *rel;
  unsigned int i;
  unsigned int j;
  struct TALER_Amount amount;

  cmd->details.reserve_status.wsh = NULL;
  if (cmd->expected_response_code != http_status)
  {
    GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
                "Unexpected response code %u to command %s\n",
                http_status,
                cmd->label);
    GNUNET_break (0);
    json_dumpf (json, stderr, 0);
    fail (is);
    return;
  }
  switch (http_status)
  {
  case MHD_HTTP_OK:
    /* FIXME: note that history events may come in a different
       order than the commands. However, for now this works... */
    j = 0;
    for (i=0;i<is->ip;i++)
    {
      switch ((rel = &is->commands[i])->oc)
      {
      case OC_ADMIN_ADD_INCOMING:
        if ( ( (NULL != rel->label) &&
               (0 == strcmp (cmd->details.reserve_status.reserve_reference,
                             rel->label) ) ) ||
             ( (NULL != rel->details.admin_add_incoming.reserve_reference) &&
               (0 == strcmp (cmd->details.reserve_status.reserve_reference,
                             rel->details.admin_add_incoming.reserve_reference) ) ) )
        {
          if (GNUNET_OK !=
              compare_admin_add_incoming_history (&history[j],
                                                  rel))
          {
            GNUNET_break (0);
            fail (is);
            return;
          }
          j++;
        }
        break;
      case OC_WITHDRAW_SIGN:
        if (0 == strcmp (cmd->details.reserve_status.reserve_reference,
                         rel->details.reserve_withdraw.reserve_reference))
        {
          if (GNUNET_OK !=
              compare_reserve_withdraw_history (&history[j],
                                             rel))
          {
            GNUNET_break (0);
            fail (is);
            return;
          }
          j++;
        }
        break;
      default:
        /* unreleated, just skip */
        break;
      }
    }
    if (j != history_length)
    {
      GNUNET_break (0);
      fail (is);
      return;
    }
    if (NULL != cmd->details.reserve_status.expected_balance)
    {
      GNUNET_assert (GNUNET_OK ==
                     TALER_string_to_amount (cmd->details.reserve_status.expected_balance,
                                             &amount));
      if (0 != TALER_amount_cmp (&amount,
                                 balance))
      {
        GNUNET_break (0);
        fail (is);
        return;
      }
    }
    break;
  default:
    /* Unsupported status code (by test harness) */
    GNUNET_break (0);
    break;
  }
  is->ip++;
  is->task = GNUNET_SCHEDULER_add_now (&interpreter_run,
                                       is);
}


/**
 * Function called upon completion of our /reserve/withdraw request.
 *
 * @param cls closure with the interpreter state
 * @param http_status HTTP response code, #MHD_HTTP_OK (200) for successful status request
 *                    0 if the mint's reply is bogus (fails to follow the protocol)
 * @param sig signature over the coin, NULL on error
 * @param full_response full response from the mint (for logging, in case of errors)
 */
static void
reserve_withdraw_cb (void *cls,
                     unsigned int http_status,
                     const struct TALER_DenominationSignature *sig,
                     json_t *full_response)
{
  struct InterpreterState *is = cls;
  struct Command *cmd = &is->commands[is->ip];

  cmd->details.reserve_withdraw.wsh = NULL;
  if (cmd->expected_response_code != http_status)
  {
    GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
                "Unexpected response code %u to command %s\n",
                http_status,
                cmd->label);
    json_dumpf (full_response, stderr, 0);
    GNUNET_break (0);
    fail (is);
    return;
  }
  switch (http_status)
  {
  case MHD_HTTP_OK:
    if (NULL == sig)
    {
      GNUNET_break (0);
      fail (is);
      return;
    }
    cmd->details.reserve_withdraw.sig.rsa_signature
      = GNUNET_CRYPTO_rsa_signature_dup (sig->rsa_signature);
    break;
  case MHD_HTTP_PAYMENT_REQUIRED:
    /* nothing to check */
    break;
  default:
    /* Unsupported status code (by test harness) */
    GNUNET_break (0);
    break;
  }
  is->ip++;
  is->task = GNUNET_SCHEDULER_add_now (&interpreter_run,
                                       is);
}


/**
 * Function called with the result of a /deposit operation.
 *
 * @param cls closure with the interpreter state
 * @param http_status HTTP response code, #MHD_HTTP_OK (200) for successful deposit;
 *                    0 if the mint's reply is bogus (fails to follow the protocol)
 * @param obj the received JSON reply, should be kept as proof (and, in case of errors,
 *            be forwarded to the customer)
 */
static void
deposit_cb (void *cls,
            unsigned int http_status,
            json_t *obj)
{
  struct InterpreterState *is = cls;
  struct Command *cmd = &is->commands[is->ip];

  cmd->details.deposit.dh = NULL;
  if (cmd->expected_response_code != http_status)
  {
    GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
                "Unexpected response code %u to command %s\n",
                http_status,
                cmd->label);
    json_dumpf (obj, stderr, 0);
    fail (is);
    return;
  }
  is->ip++;
  is->task = GNUNET_SCHEDULER_add_now (&interpreter_run,
                                       is);
}


/**
 * Function called with the result of the /refresh/melt operation.
 *
 * @param cls closure with the interpreter state
 * @param http_status HTTP response code, never #MHD_HTTP_OK (200) as for successful intermediate response this callback is skipped.
 *                    0 if the mint's reply is bogus (fails to follow the protocol)
 * @param noreveal_index choice by the mint in the cut-and-choose protocol,
 *                    UINT16_MAX on error
 * @param full_response full response from the mint (for logging, in case of errors)
 */
static void
melt_cb (void *cls,
         unsigned int http_status,
         uint16_t noreveal_index,
         json_t *full_response)
{
  struct InterpreterState *is = cls;
  struct Command *cmd = &is->commands[is->ip];

  cmd->details.refresh_melt.rmh = NULL;
  if (cmd->expected_response_code != http_status)
  {
    GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
                "Unexpected response code %u to command %s\n",
                http_status,
                cmd->label);
    json_dumpf (full_response, stderr, 0);
    fail (is);
    return;
  }
  cmd->details.refresh_melt.noreveal_index = noreveal_index;
  is->ip++;
  is->task = GNUNET_SCHEDULER_add_now (&interpreter_run,
                                       is);
}


/**
 * Function called with the result of the /refresh/reveal operation.
 *
 * @param cls closure with the interpreter state
 * @param http_status HTTP response code, #MHD_HTTP_OK (200) for successful status request
 *                    0 if the mint's reply is bogus (fails to follow the protocol)
 * @param num_coins number of fresh coins created, length of the @a sigs and @a coin_privs arrays, 0 if the operation failed
 * @param coin_privs array of @a num_coins private keys for the coins that were created, NULL on error
 * @param sigs array of signature over @a num_coins coins, NULL on error
 * @param full_response full response from the mint (for logging, in case of errors)
 */
static void
reveal_cb (void *cls,
           unsigned int http_status,
           unsigned int num_coins,
           const struct TALER_CoinSpendPrivateKeyP *coin_privs,
           const struct TALER_DenominationSignature *sigs,
           json_t *full_response)
{
  struct InterpreterState *is = cls;
  struct Command *cmd = &is->commands[is->ip];
  const struct Command *ref;
  unsigned int i;

  cmd->details.refresh_reveal.rrh = NULL;
  if (cmd->expected_response_code != http_status)
  {
    GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
                "Unexpected response code %u to command %s\n",
                http_status,
                cmd->label);
    json_dumpf (full_response, stderr, 0);
    fail (is);
    return;
  }
  ref = find_command (is,
                      cmd->details.refresh_reveal.melt_ref);
  cmd->details.refresh_reveal.num_fresh_coins = num_coins;
  switch (http_status)
  {
  case MHD_HTTP_OK:
    cmd->details.refresh_reveal.fresh_coins
      = GNUNET_new_array (num_coins,
                          struct FreshCoin);
    for (i=0;i<num_coins;i++)
    {
      struct FreshCoin *fc = &cmd->details.refresh_reveal.fresh_coins[i];

      fc->pk = ref->details.refresh_melt.fresh_pks[i];
      fc->coin_priv = coin_privs[i];
      fc->sig.rsa_signature
        = GNUNET_CRYPTO_rsa_signature_dup (sigs[i].rsa_signature);
    }
    break;
  default:
    break;
  }

  is->ip++;
  is->task = GNUNET_SCHEDULER_add_now (&interpreter_run,
                                       is);
}


/**
 * Function called with the result of a /refresh/link operation.
 *
 * @param cls closure with the interpreter state
 * @param http_status HTTP response code, #MHD_HTTP_OK (200) for successful status request
 *                    0 if the mint's reply is bogus (fails to follow the protocol)
 * @param num_coins number of fresh coins created, length of the @a sigs and @a coin_privs arrays, 0 if the operation failed
 * @param coin_privs array of @a num_coins private keys for the coins that were created, NULL on error
 * @param sigs array of signature over @a num_coins coins, NULL on error
 * @param pubs array of public keys for the @a sigs, NULL on error
 * @param full_response full response from the mint (for logging, in case of errors)
 */
static void
link_cb (void *cls,
         unsigned int http_status,
         unsigned int num_coins,
         const struct TALER_CoinSpendPrivateKeyP *coin_privs,
         const struct TALER_DenominationSignature *sigs,
         const struct TALER_DenominationPublicKey *pubs,
         json_t *full_response)
{
  struct InterpreterState *is = cls;
  struct Command *cmd = &is->commands[is->ip];
  const struct Command *ref;
  unsigned int i;
  unsigned int j;
  unsigned int found;

  cmd->details.refresh_link.rlh = NULL;
  if (cmd->expected_response_code != http_status)
  {
    GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
                "Unexpected response code %u to command %s\n",
                http_status,
                cmd->label);
    json_dumpf (full_response, stderr, 0);
    fail (is);
    return;
  }
  ref = find_command (is,
                      cmd->details.refresh_link.reveal_ref);
  switch (http_status)
  {
  case MHD_HTTP_OK:
    /* check that number of coins returned matches */
    if (num_coins != ref->details.refresh_reveal.num_fresh_coins)
    {
      GNUNET_break (0);
      fail (is);
      return;
    }
    /* check that the coins match */
    for (i=0;i<num_coins;i++)
      for (j=i+1;j<num_coins;j++)
	if (0 == memcmp (&coin_privs[i],
			 &coin_privs[j],
			 sizeof (struct TALER_CoinSpendPrivateKeyP)))
	  GNUNET_break (0);
    /* Note: coins might be legitimately permutated in here... */
    found = 0;
    for (i=0;i<num_coins;i++)
      for (j=0;j<num_coins;j++)
      {
	const struct FreshCoin *fc;

	fc = &ref->details.refresh_reveal.fresh_coins[j];
	if ( (0 == memcmp (&coin_privs[i],
			   &fc->coin_priv,
			   sizeof (struct TALER_CoinSpendPrivateKeyP))) &&
	     (0 == GNUNET_CRYPTO_rsa_signature_cmp (fc->sig.rsa_signature,
						    sigs[i].rsa_signature)) &&
	     (0 == GNUNET_CRYPTO_rsa_public_key_cmp (fc->pk->key.rsa_public_key,
						     pubs[i].rsa_public_key)) )
	{
	  found++;
	  break;
	}
      }
    if (found != num_coins)
    {
      fprintf (stderr,
	       "Only %u/%u coins match expectations\n",
	       found,
	       num_coins);
      GNUNET_break (0);
      fail (is);
      return;
    }
    break;
  default:
    break;
  }
  is->ip++;
  is->task = GNUNET_SCHEDULER_add_now (&interpreter_run,
                                       is);
}


/**
 * Find denomination key matching the given amount.
 *
 * @param keys array of keys to search
 * @param amount coin value to look for
 * @return NULL if no matching key was found
 */
static const struct TALER_MINT_DenomPublicKey *
find_pk (const struct TALER_MINT_Keys *keys,
         const struct TALER_Amount *amount)
{
  unsigned int i;
  struct GNUNET_TIME_Absolute now;
  struct TALER_MINT_DenomPublicKey *pk;
  char *str;

  now = GNUNET_TIME_absolute_get ();
  for (i=0;i<keys->num_denom_keys;i++)
  {
    pk = &keys->denom_keys[i];
    if ( (0 == TALER_amount_cmp (amount,
                                 &pk->value)) &&
         (now.abs_value_us >= pk->valid_from.abs_value_us) &&
         (now.abs_value_us < pk->withdraw_valid_until.abs_value_us) )
      return pk;
  }
  /* do 2nd pass to check if expiration times are to blame for failure */
  str = TALER_amount_to_string (amount);
  for (i=0;i<keys->num_denom_keys;i++)
  {
    pk = &keys->denom_keys[i];
    if ( (0 == TALER_amount_cmp (amount,
                                 &pk->value)) &&
         ( (now.abs_value_us < pk->valid_from.abs_value_us) ||
           (now.abs_value_us > pk->withdraw_valid_until.abs_value_us) ) )
    {
      GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
                  "Have denomination key for `%s', but with wrong expiration range %llu vs [%llu,%llu)\n",
                  str,
                  now.abs_value_us,
                  pk->valid_from.abs_value_us,
                  pk->withdraw_valid_until.abs_value_us);
      GNUNET_free (str);
      return NULL;
    }
  }
  GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
              "No denomination key for amount %s found\n",
              str);
  GNUNET_free (str);
  return NULL;
}


/**
 * Callbacks called with the result(s) of a
 * wire format inquiry request to the mint.
 *
 * The callback is invoked multiple times, once for each supported @a
 * method.  Finally, it is invoked one more time with cls/0/NULL/NULL
 * to indicate the end of the iteration.  If any request fails to
 * generate a valid response from the mint, @a http_status will also
 * be zero and the iteration will also end.  Thus, the iteration
 * always ends with a final call with an @a http_status of 0. If the
 * @a http_status is already 0 on the first call, then the response to
 * the /wire request was invalid.  Later, clients can tell the
 * difference between @a http_status of 0 indicating a failed
 * /wire/method request and a regular end of the iteration by @a
 * method being non-NULL.  If the mint simply correctly asserts that
 * it does not support any methods, @a method will be NULL but the @a
 * http_status will be #MHD_HTTP_OK for the first call (followed by a
 * cls/0/NULL/NULL call to signal the end of the iteration).
 *
 * @param cls closure with the interpreter state
 * @param http_status HTTP response code, #MHD_HTTP_OK (200) for successful request;
 *                    0 if the mint's reply is bogus (fails to follow the protocol)
 * @param method wire format method supported, i.e. "test" or "sepa", or NULL
 *            if already the /wire request failed.
 * @param obj the received JSON reply, if successful this should be the wire
 *            format details as provided by /wire/METHOD/, or NULL if the
 *            reply was not in JSON format (in this case, the client might
 *            want to do an HTTP request to /wire/METHOD/ with a browser to
 *            provide more information to the user about the @a method).
 */
static void
wire_cb (void *cls,
         unsigned int http_status,
         const char *method,
         json_t *obj)
{
  struct InterpreterState *is = cls;
  struct Command *cmd = &is->commands[is->ip];

  if (0 == http_status)
  {
    /* 0 always signals the end of the iteration */
    cmd->details.wire.wh = NULL;
  }
  else if ( (NULL != method) &&
            (0 != strcasecmp (method,
                              cmd->details.wire.format)) )
  {
    /* not the method we care about, skip */
    return;
  }
  if (cmd->expected_response_code != http_status)
  {
    GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
                "Unexpected response code %u to command %s/%s\n",
                http_status,
                cmd->label,
                method);
    json_dumpf (obj, stderr, 0);
    fail (is);
    return;
  }
  if (0 == http_status)
  {
    /* end of iteration, move to next command */
    is->ip++;
    is->task = GNUNET_SCHEDULER_add_now (&interpreter_run,
                                         is);
    return;
  }
  /* For now, we only support to be called only once
     with a "positive" result; so we switch to an
     expected value of 0 for the 2nd iteration */
  cmd->expected_response_code = 0;
}


/**
 * Function called with detailed wire transfer data, including all
 * of the coin transactions that were combined into the wire transfer.
 *
 * @param cls closure
 * @param http_status HTTP status code we got, 0 on mint protocol violation
 * @param json original json reply (may include signatures, those have then been
 *        validated already)
 * @param wtid extracted wire transfer identifier, or NULL if the mint could
 *             not provide any (set only if @a http_status is #MHD_HTTP_OK)
 * @param total_amount total amount of the wire transfer, or NULL if the mint could
 *             not provide any @a wtid (set only if @a http_status is #MHD_HTTP_OK)
 * @param details_length length of the @a details array
 * @param details array with details about the combined transactions
 */
static void
wire_deposits_cb (void *cls,
                  unsigned int http_status,
                  json_t *json,
                  const struct GNUNET_HashCode *h_wire,
                  const struct TALER_Amount *total_amount,
                  unsigned int details_length,
                  const struct TALER_WireDepositDetails *details)
{
  struct InterpreterState *is = cls;
  struct Command *cmd = &is->commands[is->ip];
  const struct Command *ref;

  cmd->details.wire_deposits.wdh = NULL;
  ref = find_command (is,
                      cmd->details.wire_deposits.wtid_ref);
  if (cmd->expected_response_code != http_status)
  {
    GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
                "Unexpected response code %u to command %s\n",
                http_status,
                cmd->label);
    json_dumpf (json, stderr, 0);
    fail (is);
    return;
  }
  switch (http_status)
  {
  case MHD_HTTP_OK:
    if (0 != TALER_amount_cmp (total_amount,
                               &ref->details.deposit_wtid.total_amount_expected))
    {
      GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
                  "Total amount missmatch to command %s\n",
                  http_status,
                  cmd->label);
      json_dumpf (json, stderr, 0);
      fail (is);
      return;
    }
    if (NULL != ref->details.deposit_wtid.deposit_ref)
    {
      const struct Command *dep;
      struct GNUNET_HashCode hw;

      dep = find_command (is,
                          ref->details.deposit_wtid.deposit_ref);
      GNUNET_CRYPTO_hash (dep->details.deposit.wire_details,
                          strlen (dep->details.deposit.wire_details),
                          &hw);
      if (0 != memcmp (&hw,
                       h_wire,
                       sizeof (struct GNUNET_HashCode)))
      {
        GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
                    "Wire hash missmatch to command %s\n",
                    cmd->label);
        json_dumpf (json, stderr, 0);
        fail (is);
        return;
      }
    }
    break;
  default:
    break;
  }

  /* move to next command */
  is->ip++;
  is->task = GNUNET_SCHEDULER_add_now (&interpreter_run,
                                       is);
}


/**
 * Function called with detailed wire transfer data.
 *
 * @param cls closure
 * @param http_status HTTP status code we got, 0 on mint protocol violation
 * @param json original json reply (may include signatures, those have then been
 *        validated already)
 * @param wtid wire transfer identifier used by the mint, NULL if mint did not
 *                  yet execute the transaction
 * @param execution_time actual or planned execution time for the wire transfer
 * @param coin_contribution contribution to the @a total_amount of the deposited coin (may be NULL)
 * @param total_amount total amount of the wire transfer, or NULL if the mint could
 *             not provide any @a wtid (set only if @a http_status is #MHD_HTTP_OK)
 */
static void
deposit_wtid_cb (void *cls,
                 unsigned int http_status,
                 json_t *json,
                 const struct TALER_WireTransferIdentifierRawP *wtid,
                 struct GNUNET_TIME_Absolute execution_time,
                 const struct TALER_Amount *coin_contribution)
{
  struct InterpreterState *is = cls;
  struct Command *cmd = &is->commands[is->ip];

  cmd->details.deposit_wtid.dwh = NULL;
  if (cmd->expected_response_code != http_status)
  {
    GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
                "Unexpected response code %u to command %s\n",
                http_status,
                cmd->label);
    json_dumpf (json, stderr, 0);
    fail (is);
    return;
  }
  switch (http_status)
  {
  case MHD_HTTP_OK:
    cmd->details.deposit_wtid.wtid = *wtid;
    break;
  default:
    break;
  }

  /* move to next command */
  is->ip++;
  is->task = GNUNET_SCHEDULER_add_now (&interpreter_run,
                                       is);
}


/**
 * Run the main interpreter loop that performs mint operations.
 *
 * @param cls contains the `struct InterpreterState`
 * @param tc scheduler context
 */
static void
interpreter_run (void *cls,
                 const struct GNUNET_SCHEDULER_TaskContext *tc)
{
  struct InterpreterState *is = cls;
  struct Command *cmd = &is->commands[is->ip];
  const struct Command *ref;
  struct TALER_ReservePublicKeyP reserve_pub;
  struct TALER_CoinSpendPublicKeyP coin_pub;
  struct TALER_Amount amount;
  struct GNUNET_TIME_Absolute execution_date;
  json_t *wire;

  is->task = NULL;
  if (0 != (tc->reason & GNUNET_SCHEDULER_REASON_SHUTDOWN))
  {
    fprintf (stderr,
             "Test aborted by shutdown request\n");
    fail (is);
    return;
  }
  switch (cmd->oc)
  {
  case OC_END:
    result = GNUNET_OK;
    GNUNET_SCHEDULER_shutdown ();
    return;
  case OC_ADMIN_ADD_INCOMING:
    if (NULL !=
        cmd->details.admin_add_incoming.reserve_reference)
    {
      ref = find_command (is,
                          cmd->details.admin_add_incoming.reserve_reference);
      GNUNET_assert (NULL != ref);
      GNUNET_assert (OC_ADMIN_ADD_INCOMING == ref->oc);
      cmd->details.admin_add_incoming.reserve_priv
        = ref->details.admin_add_incoming.reserve_priv;
    }
    else
    {
      struct GNUNET_CRYPTO_EddsaPrivateKey *priv;

      priv = GNUNET_CRYPTO_eddsa_key_create ();
      cmd->details.admin_add_incoming.reserve_priv.eddsa_priv = *priv;
      GNUNET_free (priv);
    }
    GNUNET_CRYPTO_eddsa_key_get_public (&cmd->details.admin_add_incoming.reserve_priv.eddsa_priv,
                                        &reserve_pub.eddsa_pub);
    if (GNUNET_OK !=
        TALER_string_to_amount (cmd->details.admin_add_incoming.amount,
                                &amount))
    {
      GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
                  "Failed to parse amount `%s' at %u\n",
                  cmd->details.admin_add_incoming.amount,
                  is->ip);
      fail (is);
      return;
    }
    wire = json_loads (cmd->details.admin_add_incoming.wire,
                       JSON_REJECT_DUPLICATES,
                       NULL);
    if (NULL == wire)
    {
      GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
                  "Failed to parse wire details `%s' at %u\n",
                  cmd->details.admin_add_incoming.wire,
                  is->ip);
      fail (is);
      return;
    }
    execution_date = GNUNET_TIME_absolute_get ();
    TALER_round_abs_time (&execution_date);
    cmd->details.admin_add_incoming.aih
      = TALER_MINT_admin_add_incoming (mint,
                                       &reserve_pub,
                                       &amount,
                                       execution_date,
                                       wire,
                                       &add_incoming_cb,
                                       is);
    if (NULL == cmd->details.admin_add_incoming.aih)
    {
      GNUNET_break (0);
      fail (is);
      return;
    }
    trigger_context_task ();
    return;
  case OC_WITHDRAW_STATUS:
    GNUNET_assert (NULL !=
                   cmd->details.reserve_status.reserve_reference);
    ref = find_command (is,
                        cmd->details.reserve_status.reserve_reference);
    GNUNET_assert (NULL != ref);
    GNUNET_assert (OC_ADMIN_ADD_INCOMING == ref->oc);
    GNUNET_CRYPTO_eddsa_key_get_public (&ref->details.admin_add_incoming.reserve_priv.eddsa_priv,
                                        &reserve_pub.eddsa_pub);
    cmd->details.reserve_status.wsh
      = TALER_MINT_reserve_status (mint,
                                   &reserve_pub,
                                   &reserve_status_cb,
                                   is);
    trigger_context_task ();
    return;
  case OC_WITHDRAW_SIGN:
    GNUNET_assert (NULL !=
                   cmd->details.reserve_withdraw.reserve_reference);
    ref = find_command (is,
                        cmd->details.reserve_withdraw.reserve_reference);
    GNUNET_assert (NULL != ref);
    GNUNET_assert (OC_ADMIN_ADD_INCOMING == ref->oc);
    if (NULL != cmd->details.reserve_withdraw.amount)
    {
      if (GNUNET_OK !=
          TALER_string_to_amount (cmd->details.reserve_withdraw.amount,
                                  &amount))
      {
        GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
                    "Failed to parse amount `%s' at %u\n",
                    cmd->details.reserve_withdraw.amount,
                    is->ip);
        fail (is);
        return;
      }
      cmd->details.reserve_withdraw.pk = find_pk (is->keys,
                                                  &amount);
    }
    if (NULL == cmd->details.reserve_withdraw.pk)
    {
      GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
                  "Failed to determine denomination key at %u\n",
                  is->ip);
      fail (is);
      return;
    }

    /* create coin's private key */
    {
      struct GNUNET_CRYPTO_EddsaPrivateKey *priv;

      priv = GNUNET_CRYPTO_eddsa_key_create ();
      cmd->details.reserve_withdraw.coin_priv.eddsa_priv = *priv;
      GNUNET_free (priv);
    }
    GNUNET_CRYPTO_eddsa_key_get_public (&cmd->details.reserve_withdraw.coin_priv.eddsa_priv,
                                        &coin_pub.eddsa_pub);
    cmd->details.reserve_withdraw.blinding_key.rsa_blinding_key
      = GNUNET_CRYPTO_rsa_blinding_key_create (GNUNET_CRYPTO_rsa_public_key_len (cmd->details.reserve_withdraw.pk->key.rsa_public_key));
    cmd->details.reserve_withdraw.wsh
      = TALER_MINT_reserve_withdraw (mint,
                                     cmd->details.reserve_withdraw.pk,
                                     &ref->details.admin_add_incoming.reserve_priv,
                                     &cmd->details.reserve_withdraw.coin_priv,
                                     &cmd->details.reserve_withdraw.blinding_key,
                                     &reserve_withdraw_cb,
                                     is);
    if (NULL == cmd->details.reserve_withdraw.wsh)
    {
      GNUNET_break (0);
      fail (is);
      return;
    }
    trigger_context_task ();
    return;
  case OC_DEPOSIT:
    {
      struct GNUNET_HashCode h_contract;
      const struct TALER_CoinSpendPrivateKeyP *coin_priv;
      const struct TALER_MINT_DenomPublicKey *coin_pk;
      const struct TALER_DenominationSignature *coin_pk_sig;
      struct TALER_CoinSpendPublicKeyP coin_pub;
      struct TALER_CoinSpendSignatureP coin_sig;
      struct GNUNET_TIME_Absolute refund_deadline;
      struct GNUNET_TIME_Absolute wire_deadline;
      struct GNUNET_TIME_Absolute timestamp;
      struct GNUNET_CRYPTO_EddsaPrivateKey *priv;
      struct TALER_MerchantPublicKeyP merchant_pub;
      json_t *contract;
      json_t *wire;

      GNUNET_assert (NULL !=
                     cmd->details.deposit.coin_ref);
      ref = find_command (is,
                          cmd->details.deposit.coin_ref);
      GNUNET_assert (NULL != ref);
      switch (ref->oc)
      {
      case OC_WITHDRAW_SIGN:
        coin_priv = &ref->details.reserve_withdraw.coin_priv;
        coin_pk = ref->details.reserve_withdraw.pk;
        coin_pk_sig = &ref->details.reserve_withdraw.sig;
        break;
      case OC_REFRESH_REVEAL:
        {
          const struct FreshCoin *fc;
          unsigned int idx;

          idx = cmd->details.deposit.coin_idx;
          GNUNET_assert (idx < ref->details.refresh_reveal.num_fresh_coins);
          fc = &ref->details.refresh_reveal.fresh_coins[idx];

          coin_priv = &fc->coin_priv;
          coin_pk = fc->pk;
          coin_pk_sig = &fc->sig;
        }
        break;
      default:
        GNUNET_assert (0);
      }
      if (GNUNET_OK !=
          TALER_string_to_amount (cmd->details.deposit.amount,
                                  &amount))
      {
        GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
                    "Failed to parse amount `%s' at %u\n",
                    cmd->details.deposit.amount,
                    is->ip);
        fail (is);
        return;
      }
      contract = json_loads (cmd->details.deposit.contract,
                             JSON_REJECT_DUPLICATES,
                             NULL);
      if (NULL == contract)
      {
        GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
                    "Failed to parse contract details `%s' at %u/%s\n",
                    cmd->details.deposit.contract,
                    is->ip,
                    cmd->label);
        fail (is);
        return;
      }
      TALER_hash_json (contract,
                       &h_contract);
      wire = json_loads (cmd->details.deposit.wire_details,
                         JSON_REJECT_DUPLICATES,
                         NULL);
      if (NULL == wire)
      {
        GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
                    "Failed to parse wire details `%s' at %u/%s\n",
                    cmd->details.deposit.wire_details,
                    is->ip,
                    cmd->label);
        fail (is);
        return;
      }
      GNUNET_CRYPTO_eddsa_key_get_public (&coin_priv->eddsa_priv,
                                          &coin_pub.eddsa_pub);

      priv = GNUNET_CRYPTO_eddsa_key_create ();
      cmd->details.deposit.merchant_priv.eddsa_priv = *priv;
      GNUNET_free (priv);
      if (0 != cmd->details.deposit.refund_deadline.rel_value_us)
      {
        refund_deadline = GNUNET_TIME_relative_to_absolute (cmd->details.deposit.refund_deadline);
      }
      else
      {
        refund_deadline = GNUNET_TIME_UNIT_ZERO_ABS;
      }
      GNUNET_CRYPTO_eddsa_key_get_public (&cmd->details.deposit.merchant_priv.eddsa_priv,
                                          &merchant_pub.eddsa_pub);

      wire_deadline = GNUNET_TIME_relative_to_absolute (GNUNET_TIME_UNIT_DAYS);
      timestamp = GNUNET_TIME_absolute_get ();
      TALER_round_abs_time (&timestamp);
      {
        struct TALER_DepositRequestPS dr;

        memset (&dr, 0, sizeof (dr));
        dr.purpose.size = htonl (sizeof (struct TALER_DepositRequestPS));
        dr.purpose.purpose = htonl (TALER_SIGNATURE_WALLET_COIN_DEPOSIT);
        dr.h_contract = h_contract;
        TALER_hash_json (wire,
                         &dr.h_wire);
        dr.timestamp = GNUNET_TIME_absolute_hton (timestamp);
        dr.refund_deadline = GNUNET_TIME_absolute_hton (refund_deadline);
        dr.transaction_id = GNUNET_htonll (cmd->details.deposit.transaction_id);
        TALER_amount_hton (&dr.amount_with_fee,
                           &amount);
        TALER_amount_hton (&dr.deposit_fee,
                           &coin_pk->fee_deposit);
        dr.merchant = merchant_pub;
        dr.coin_pub = coin_pub;
        GNUNET_assert (GNUNET_OK ==
                       GNUNET_CRYPTO_eddsa_sign (&coin_priv->eddsa_priv,
                                                 &dr.purpose,
                                                 &coin_sig.eddsa_signature));
      }
      cmd->details.deposit.dh
        = TALER_MINT_deposit (mint,
                              &amount,
                              wire_deadline,
                              wire,
                              &h_contract,
                              &coin_pub,
                              coin_pk_sig,
                              &coin_pk->key,
                              timestamp,
                              cmd->details.deposit.transaction_id,
                              &merchant_pub,
                              refund_deadline,
                              &coin_sig,
                              &deposit_cb,
                              is);
      if (NULL == cmd->details.deposit.dh)
      {
        GNUNET_break (0);
        json_decref (wire);
        fail (is);
        return;
      }
      json_decref (wire);
      trigger_context_task ();
      return;
    }
  case OC_REFRESH_MELT:
    {
      unsigned int num_melted_coins;
      unsigned int num_fresh_coins;

      cmd->details.refresh_melt.noreveal_index = UINT16_MAX;
      for (num_melted_coins=0;
           NULL != cmd->details.refresh_melt.melted_coins[num_melted_coins].amount;
           num_melted_coins++) ;
      for (num_fresh_coins=0;
           NULL != cmd->details.refresh_melt.fresh_amounts[num_fresh_coins];
           num_fresh_coins++) ;

      cmd->details.refresh_melt.fresh_pks
        = GNUNET_new_array (num_fresh_coins,
                            const struct TALER_MINT_DenomPublicKey *);
      {
        struct TALER_CoinSpendPrivateKeyP melt_privs[num_melted_coins];
        struct TALER_Amount melt_amounts[num_melted_coins];
        struct TALER_DenominationSignature melt_sigs[num_melted_coins];
        struct TALER_MINT_DenomPublicKey melt_pks[num_melted_coins];
        struct TALER_MINT_DenomPublicKey fresh_pks[num_fresh_coins];
        unsigned int i;

        for (i=0;i<num_melted_coins;i++)
        {
          const struct MeltDetails *md = &cmd->details.refresh_melt.melted_coins[i];
          ref = find_command (is,
                              md->coin_ref);
          GNUNET_assert (NULL != ref);
          GNUNET_assert (OC_WITHDRAW_SIGN == ref->oc);

          melt_privs[i] = ref->details.reserve_withdraw.coin_priv;
          if (GNUNET_OK !=
              TALER_string_to_amount (md->amount,
                                      &melt_amounts[i]))
          {
            GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
                        "Failed to parse amount `%s' at %u\n",
                        md->amount,
                        is->ip);
            fail (is);
            return;
          }
          melt_sigs[i] = ref->details.reserve_withdraw.sig;
          melt_pks[i] = *ref->details.reserve_withdraw.pk;
        }
        for (i=0;i<num_fresh_coins;i++)
        {
          if (GNUNET_OK !=
              TALER_string_to_amount (cmd->details.refresh_melt.fresh_amounts[i],
                                      &amount))
          {
            GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
                        "Failed to parse amount `%s' at %u\n",
                        cmd->details.reserve_withdraw.amount,
                        is->ip);
            fail (is);
            return;
          }
          cmd->details.refresh_melt.fresh_pks[i]
            = find_pk (is->keys,
                       &amount);
          fresh_pks[i] = *cmd->details.refresh_melt.fresh_pks[i];
        }
        cmd->details.refresh_melt.refresh_data
          = TALER_MINT_refresh_prepare (num_melted_coins,
                                        melt_privs,
                                        melt_amounts,
                                        melt_sigs,
                                        melt_pks,
                                        GNUNET_YES,
                                        num_fresh_coins,
                                        fresh_pks,
                                        &cmd->details.refresh_melt.refresh_data_length);
        if (NULL == cmd->details.refresh_melt.refresh_data)
        {
          GNUNET_break (0);
          fail (is);
          return;
        }
        cmd->details.refresh_melt.rmh
          = TALER_MINT_refresh_melt (mint,
                                     cmd->details.refresh_melt.refresh_data_length,
                                     cmd->details.refresh_melt.refresh_data,
                                     &melt_cb,
                                     is);
        if (NULL == cmd->details.refresh_melt.rmh)
        {
          GNUNET_break (0);
          fail (is);
          return;
        }
      }
    }
    trigger_context_task ();
    return;
  case OC_REFRESH_REVEAL:
    ref = find_command (is,
                        cmd->details.refresh_reveal.melt_ref);
    cmd->details.refresh_reveal.rrh
      = TALER_MINT_refresh_reveal (mint,
                                   ref->details.refresh_melt.refresh_data_length,
                                   ref->details.refresh_melt.refresh_data,
                                   ref->details.refresh_melt.noreveal_index,
                                   &reveal_cb,
                                   is);
    if (NULL == cmd->details.refresh_reveal.rrh)
    {
      GNUNET_break (0);
      fail (is);
      return;
    }
    trigger_context_task ();
    return;
  case OC_REFRESH_LINK:
    /* find reveal command */
    ref = find_command (is,
                        cmd->details.refresh_link.reveal_ref);
    /* find melt command */
    ref = find_command (is,
                        ref->details.refresh_reveal.melt_ref);
    /* find reserve_withdraw command */
    {
      unsigned int idx;
      const struct MeltDetails *md;
      unsigned int num_melted_coins;

      for (num_melted_coins=0;
           NULL != ref->details.refresh_melt.melted_coins[num_melted_coins].amount;
           num_melted_coins++) ;
      idx = cmd->details.refresh_link.coin_idx;
      GNUNET_assert (idx < num_melted_coins);
      md = &ref->details.refresh_melt.melted_coins[idx];
      ref = find_command (is,
                          md->coin_ref);
    }
    GNUNET_assert (OC_WITHDRAW_SIGN == ref->oc);
    /* finally, use private key from withdraw sign command */
    cmd->details.refresh_link.rlh
      = TALER_MINT_refresh_link (mint,
                                 &ref->details.reserve_withdraw.coin_priv,
                                 &link_cb,
                                 is);
    if (NULL == cmd->details.refresh_link.rlh)
    {
      GNUNET_break (0);
      fail (is);
      return;
    }
    trigger_context_task ();
    return;
  case OC_WIRE:
    cmd->details.wire.wh = TALER_MINT_wire (mint,
                                            &wire_cb,
                                            is);
    trigger_context_task ();
    return;
  case OC_WIRE_DEPOSITS:
    if (NULL != cmd->details.wire_deposits.wtid_ref)
    {
      ref = find_command (is,
                          cmd->details.wire_deposits.wtid_ref);
      GNUNET_assert (NULL != ref);
      cmd->details.wire_deposits.wtid = ref->details.deposit_wtid.wtid;
    }
    cmd->details.wire_deposits.wdh
      = TALER_MINT_wire_deposits (mint,
                                  &cmd->details.wire_deposits.wtid,
                                  &wire_deposits_cb,
                                  is);
    trigger_context_task ();
    return;
  case OC_DEPOSIT_WTID:
    {
      struct GNUNET_HashCode h_wire;
      struct GNUNET_HashCode h_contract;
      json_t *wire;
      json_t *contract;
      const struct Command *coin;
      struct TALER_CoinSpendPublicKeyP coin_pub;

      ref = find_command (is,
                          cmd->details.deposit_wtid.deposit_ref);
      GNUNET_assert (NULL != ref);
      coin = find_command (is,
                           ref->details.deposit.coin_ref);
      GNUNET_assert (NULL != coin);
      switch (coin->oc)
      {
      case OC_WITHDRAW_SIGN:
        GNUNET_CRYPTO_eddsa_key_get_public (&coin->details.reserve_withdraw.coin_priv.eddsa_priv,
                                            &coin_pub.eddsa_pub);
        break;
      case OC_REFRESH_REVEAL:
        {
          const struct FreshCoin *fc;
          unsigned int idx;

          idx = ref->details.deposit.coin_idx;
          GNUNET_assert (idx < coin->details.refresh_reveal.num_fresh_coins);
          fc = &coin->details.refresh_reveal.fresh_coins[idx];

          GNUNET_CRYPTO_eddsa_key_get_public (&fc->coin_priv.eddsa_priv,
                                              &coin_pub.eddsa_pub);
        }
        break;
      default:
        GNUNET_assert (0);
      }

      wire = json_loads (ref->details.deposit.wire_details,
                         JSON_REJECT_DUPLICATES,
                         NULL);
      GNUNET_assert (NULL != wire);
      TALER_hash_json (wire,
                       &h_wire);
      json_decref (wire);
      contract = json_loads (ref->details.deposit.contract,
                             JSON_REJECT_DUPLICATES,
                             NULL);
      GNUNET_assert (NULL != contract);
      TALER_hash_json (contract,
                       &h_contract);
      json_decref (contract);
      cmd->details.deposit_wtid.dwh
        = TALER_MINT_deposit_wtid (mint,
                                   &ref->details.deposit.merchant_priv,
                                   &h_wire,
                                   &h_contract,
                                   &coin_pub,
                                   ref->details.deposit.transaction_id,
                                   &deposit_wtid_cb,
                                   is);
      trigger_context_task ();
    }
    return;
  default:
    GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
                "Unknown instruction %d at %u (%s)\n",
                cmd->oc,
                is->ip,
                cmd->label);
    fail (is);
    return;
  }
}


/**
 * Function run when the test terminates (good or bad).
 * Cleans up our state.
 *
 * @param cls the interpreter state.
 * @param tc unused
 */
static void
do_shutdown (void *cls,
             const struct GNUNET_SCHEDULER_TaskContext *tc)
{
  struct InterpreterState *is = cls;
  struct Command *cmd;
  unsigned int i;

  shutdown_task = NULL;
  for (i=0;OC_END != (cmd = &is->commands[i])->oc;i++)
  {
    switch (cmd->oc)
    {
    case OC_END:
      GNUNET_assert (0);
      break;
    case OC_ADMIN_ADD_INCOMING:
      if (NULL != cmd->details.admin_add_incoming.aih)
      {
        GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
                    "Command %u (%s) did not complete\n",
                    i,
                    cmd->label);
        TALER_MINT_admin_add_incoming_cancel (cmd->details.admin_add_incoming.aih);
        cmd->details.admin_add_incoming.aih = NULL;
      }
      break;
    case OC_WITHDRAW_STATUS:
      if (NULL != cmd->details.reserve_status.wsh)
      {
        GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
                    "Command %u (%s) did not complete\n",
                    i,
                    cmd->label);
        TALER_MINT_reserve_status_cancel (cmd->details.reserve_status.wsh);
        cmd->details.reserve_status.wsh = NULL;
      }
      break;
    case OC_WITHDRAW_SIGN:
      if (NULL != cmd->details.reserve_withdraw.wsh)
      {
        GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
                    "Command %u (%s) did not complete\n",
                    i,
                    cmd->label);
        TALER_MINT_reserve_withdraw_cancel (cmd->details.reserve_withdraw.wsh);
        cmd->details.reserve_withdraw.wsh = NULL;
      }
      if (NULL != cmd->details.reserve_withdraw.sig.rsa_signature)
      {
        GNUNET_CRYPTO_rsa_signature_free (cmd->details.reserve_withdraw.sig.rsa_signature);
        cmd->details.reserve_withdraw.sig.rsa_signature = NULL;
      }
      if (NULL != cmd->details.reserve_withdraw.blinding_key.rsa_blinding_key)
      {
        GNUNET_CRYPTO_rsa_blinding_key_free (cmd->details.reserve_withdraw.blinding_key.rsa_blinding_key);
        cmd->details.reserve_withdraw.blinding_key.rsa_blinding_key = NULL;
      }
      break;
    case OC_DEPOSIT:
      if (NULL != cmd->details.deposit.dh)
      {
        GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
                    "Command %u (%s) did not complete\n",
                    i,
                    cmd->label);
        TALER_MINT_deposit_cancel (cmd->details.deposit.dh);
        cmd->details.deposit.dh = NULL;
      }
      break;
    case OC_REFRESH_MELT:
      if (NULL != cmd->details.refresh_melt.rmh)
      {
        GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
                    "Command %u (%s) did not complete\n",
                    i,
                    cmd->label);
        TALER_MINT_refresh_melt_cancel (cmd->details.refresh_melt.rmh);
        cmd->details.refresh_melt.rmh = NULL;
      }
      GNUNET_free_non_null (cmd->details.refresh_melt.fresh_pks);
      cmd->details.refresh_melt.fresh_pks = NULL;
      GNUNET_free_non_null (cmd->details.refresh_melt.refresh_data);
      cmd->details.refresh_melt.refresh_data = NULL;
      cmd->details.refresh_melt.refresh_data_length = 0;
      break;
    case OC_REFRESH_REVEAL:
      if (NULL != cmd->details.refresh_reveal.rrh)
      {
        GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
                    "Command %u (%s) did not complete\n",
                    i,
                    cmd->label);
        TALER_MINT_refresh_reveal_cancel (cmd->details.refresh_reveal.rrh);
        cmd->details.refresh_reveal.rrh = NULL;
      }
      {
        unsigned int j;
        struct FreshCoin *fresh_coins;

        fresh_coins = cmd->details.refresh_reveal.fresh_coins;
        for (j=0;j<cmd->details.refresh_reveal.num_fresh_coins;j++)
          GNUNET_CRYPTO_rsa_signature_free (fresh_coins[j].sig.rsa_signature);
      }
      GNUNET_free_non_null (cmd->details.refresh_reveal.fresh_coins);
      cmd->details.refresh_reveal.fresh_coins = NULL;
      cmd->details.refresh_reveal.num_fresh_coins = 0;
      break;
    case OC_REFRESH_LINK:
      if (NULL != cmd->details.refresh_link.rlh)
      {
        GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
                    "Command %u (%s) did not complete\n",
                    i,
                    cmd->label);
        TALER_MINT_refresh_link_cancel (cmd->details.refresh_link.rlh);
        cmd->details.refresh_link.rlh = NULL;
      }
      break;
    case OC_WIRE:
      if (NULL != cmd->details.wire.wh)
      {
        GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
                    "Command %u (%s) did not complete\n",
                    i,
                    cmd->label);
        TALER_MINT_wire_cancel (cmd->details.wire.wh);
        cmd->details.wire.wh = NULL;
      }
      break;
    case OC_WIRE_DEPOSITS:
      if (NULL != cmd->details.wire_deposits.wdh)
      {
        GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
                    "Command %u (%s) did not complete\n",
                    i,
                    cmd->label);
        TALER_MINT_wire_deposits_cancel (cmd->details.wire_deposits.wdh);
        cmd->details.wire_deposits.wdh = NULL;
      }
      break;
    case OC_DEPOSIT_WTID:
      if (NULL != cmd->details.deposit_wtid.dwh)
      {
        GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
                    "Command %u (%s) did not complete\n",
                    i,
                    cmd->label);
        TALER_MINT_deposit_wtid_cancel (cmd->details.deposit_wtid.dwh);
        cmd->details.deposit_wtid.dwh = NULL;
      }
      break;
    default:
      GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
                  "Unknown instruction %d at %u (%s)\n",
                  cmd->oc,
                  i,
                  cmd->label);
      break;
    }
  }
  if (NULL != is->task)
  {
    GNUNET_SCHEDULER_cancel (is->task);
    is->task = NULL;
  }
  GNUNET_free (is);
  if (NULL != ctx_task)
  {
    GNUNET_SCHEDULER_cancel (ctx_task);
    ctx_task = NULL;
  }
  if (NULL != mint)
  {
    TALER_MINT_disconnect (mint);
    mint = NULL;
  }
  if (NULL != ctx)
  {
    TALER_MINT_fini (ctx);
    ctx = NULL;
  }
}


/**
 * Functions of this type are called to provide the retrieved signing and
 * denomination keys of the mint.  No TALER_MINT_*() functions should be called
 * in this callback.
 *
 * @param cls closure
 * @param keys information about keys of the mint
 */
static void
cert_cb (void *cls,
         const struct TALER_MINT_Keys *keys)
{
  struct InterpreterState *is = cls;

  /* check that keys is OK */
#define ERR(cond) do { if(!(cond)) break; GNUNET_break (0); GNUNET_SCHEDULER_shutdown(); return; } while (0)
  ERR (NULL == keys);
  ERR (0 == keys->num_sign_keys);
  GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
              "Read %u signing keys\n",
              keys->num_sign_keys);
  ERR (0 == keys->num_denom_keys);
  GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
              "Read %u denomination keys\n",
              keys->num_denom_keys);
#undef ERR

  /* run actual tests via interpreter-loop */
  is->keys = keys;
  is->task = GNUNET_SCHEDULER_add_now (&interpreter_run,
                                       is);
}


/**
 * Task that runs the context's event loop with the GNUnet scheduler.
 *
 * @param cls unused
 * @param tc scheduler context (unused)
 */
static void
context_task (void *cls,
              const struct GNUNET_SCHEDULER_TaskContext *tc)
{
  long timeout;
  int max_fd;
  fd_set read_fd_set;
  fd_set write_fd_set;
  fd_set except_fd_set;
  struct GNUNET_NETWORK_FDSet *rs;
  struct GNUNET_NETWORK_FDSet *ws;
  struct GNUNET_TIME_Relative delay;

  ctx_task = NULL;
  TALER_MINT_perform (ctx);
  max_fd = -1;
  timeout = -1;
  FD_ZERO (&read_fd_set);
  FD_ZERO (&write_fd_set);
  FD_ZERO (&except_fd_set);
  TALER_MINT_get_select_info (ctx,
                              &read_fd_set,
                              &write_fd_set,
                              &except_fd_set,
                              &max_fd,
                              &timeout);
  if (timeout >= 0)
    delay = GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_MILLISECONDS,
                                           timeout);
  else
    delay = GNUNET_TIME_UNIT_FOREVER_REL;
  rs = GNUNET_NETWORK_fdset_create ();
  GNUNET_NETWORK_fdset_copy_native (rs,
                                    &read_fd_set,
                                    max_fd + 1);
  ws = GNUNET_NETWORK_fdset_create ();
  GNUNET_NETWORK_fdset_copy_native (ws,
                                    &write_fd_set,
                                    max_fd + 1);
  ctx_task = GNUNET_SCHEDULER_add_select (GNUNET_SCHEDULER_PRIORITY_DEFAULT,
                                          delay,
                                          rs,
                                          ws,
                                          &context_task,
                                          cls);
  GNUNET_NETWORK_fdset_destroy (rs);
  GNUNET_NETWORK_fdset_destroy (ws);
}


/**
 * Main function that will be run by the scheduler.
 *
 * @param cls closure
 * @param args remaining command-line arguments
 * @param cfgfile name of the configuration file used (for saving, can be NULL!)
 * @param config configuration
 */
static void
run (void *cls,
     const struct GNUNET_SCHEDULER_TaskContext *tc)
{
  struct InterpreterState *is;
  static struct MeltDetails melt_coins_1[] = {
    { .amount = "EUR:4",
      .coin_ref = "refresh-withdraw-coin-1" },
    { NULL, NULL }
  };
  static const char *melt_fresh_amounts_1[] = {
    "EUR:1",
    "EUR:1",
    "EUR:1",
    "EUR:0.1",
    "EUR:0.1",
    "EUR:0.1",
    "EUR:0.1",
    "EUR:0.1",
    "EUR:0.1",
    "EUR:0.1",
    "EUR:0.1",
    "EUR:0.01",
    "EUR:0.01",
    "EUR:0.01",
    "EUR:0.01",
    "EUR:0.01",
    "EUR:0.01",
    /* with 0.01 withdraw fees (except for 1ct coins),
       this totals up to exactly EUR:3.97, and with
       the 0.03 refresh fee, to EUR:4.0*/
    NULL
  };
  static struct Command commands[] =
  {
    /* *************** start of /wire testing ************** */

#if WIRE_TEST
    { .oc = OC_WIRE,
      .label = "wire-test",
      /* /wire/test replies with a 302 redirect */
      .expected_response_code = MHD_HTTP_FOUND,
      .details.wire.format = "test" },
#endif
#if WIRE_SEPA
    { .oc = OC_WIRE,
      .label = "wire-sepa",
      /* /wire/sepa replies with a 200 redirect */
      .expected_response_code = MHD_HTTP_OK,
      .details.wire.format = "sepa" },
#endif
    /* *************** end of /wire testing ************** */

#if WIRE_TEST
    /* None of this works if 'test' is not allowed as we do
       /admin/add/incoming with format 'test' */

    /* Fill reserve with EUR:5.01, as withdraw fee is 1 ct per config */
    { .oc = OC_ADMIN_ADD_INCOMING,
      .label = "create-reserve-1",
      .expected_response_code = MHD_HTTP_OK,
      .details.admin_add_incoming.wire = "{ \"type\":\"TEST\", \"bank\":\"source bank\", \"account\":42 }",
      .details.admin_add_incoming.amount = "EUR:5.01" },
    /* Withdraw a 5 EUR coin, at fee of 1 ct */
    { .oc = OC_WITHDRAW_SIGN,
      .label = "withdraw-coin-1",
      .expected_response_code = MHD_HTTP_OK,
      .details.reserve_withdraw.reserve_reference = "create-reserve-1",
      .details.reserve_withdraw.amount = "EUR:5" },
    /* Check that deposit and withdraw operation are in history, and
       that the balance is now at zero */
    { .oc = OC_WITHDRAW_STATUS,
      .label = "withdraw-status-1",
      .expected_response_code = MHD_HTTP_OK,
      .details.reserve_status.reserve_reference = "create-reserve-1",
      .details.reserve_status.expected_balance = "EUR:0" },
    /* Try to deposit the 5 EUR coin (in full) */
    { .oc = OC_DEPOSIT,
      .label = "deposit-simple",
      .expected_response_code = MHD_HTTP_OK,
      .details.deposit.amount = "EUR:5",
      .details.deposit.coin_ref = "withdraw-coin-1",
      .details.deposit.wire_details = "{ \"type\":\"TEST\", \"bank\":\"dest bank\", \"account\":42 }",
      .details.deposit.contract = "{ \"items\": [ { \"name\":\"ice cream\", \"value\":1 } ] }",
      .details.deposit.transaction_id = 1 },

    /* Try to overdraw funds ... */
    { .oc = OC_WITHDRAW_SIGN,
      .label = "withdraw-coin-2",
      .expected_response_code = MHD_HTTP_PAYMENT_REQUIRED,
      .details.reserve_withdraw.reserve_reference = "create-reserve-1",
      .details.reserve_withdraw.amount = "EUR:5" },

    /* Try to double-spend the 5 EUR coin with different wire details */
    { .oc = OC_DEPOSIT,
      .label = "deposit-double-1",
      .expected_response_code = MHD_HTTP_FORBIDDEN,
      .details.deposit.amount = "EUR:5",
      .details.deposit.coin_ref = "withdraw-coin-1",
      .details.deposit.wire_details = "{ \"type\":\"TEST\", \"bank\":\"dest bank\", \"account\":43 }",
      .details.deposit.contract = "{ \"items\": [ { \"name\":\"ice cream\", \"value\":1 } ] }",
      .details.deposit.transaction_id = 1 },
    /* Try to double-spend the 5 EUR coin at the same merchant (but different
       transaction ID) */
    { .oc = OC_DEPOSIT,
      .label = "deposit-double-2",
      .expected_response_code = MHD_HTTP_FORBIDDEN,
      .details.deposit.amount = "EUR:5",
      .details.deposit.coin_ref = "withdraw-coin-1",
      .details.deposit.wire_details = "{ \"type\":\"TEST\", \"bank\":\"dest bank\", \"account\":42 }",
      .details.deposit.contract = "{ \"items\": [ { \"name\":\"ice cream\", \"value\":1 } ] }",
      .details.deposit.transaction_id = 2 },
    /* Try to double-spend the 5 EUR coin at the same merchant (but different
       contract) */
    { .oc = OC_DEPOSIT,
      .label = "deposit-double-3",
      .expected_response_code = MHD_HTTP_FORBIDDEN,
      .details.deposit.amount = "EUR:5",
      .details.deposit.coin_ref = "withdraw-coin-1",
      .details.deposit.wire_details = "{ \"type\":\"TEST\", \"bank\":\"dest bank\", \"account\":42 }",
      .details.deposit.contract = "{ \"items\":[{ \"name\":\"ice cream\", \"value\":2 } ] }",
      .details.deposit.transaction_id = 1 },

    /* ***************** /refresh testing ******************** */

    /* Fill reserve with EUR:5.01, as withdraw fee is 1 ct */
    { .oc = OC_ADMIN_ADD_INCOMING,
      .label = "refresh-create-reserve-1",
      .expected_response_code = MHD_HTTP_OK,
      .details.admin_add_incoming.wire = "{ \"type\":\"TEST\", \"bank\":\"source bank\", \"account\":424 }",
      .details.admin_add_incoming.amount = "EUR:5.01" },
    /* Withdraw a 5 EUR coin, at fee of 1 ct */
    { .oc = OC_WITHDRAW_SIGN,
      .label = "refresh-withdraw-coin-1",
      .expected_response_code = MHD_HTTP_OK,
      .details.reserve_withdraw.reserve_reference = "refresh-create-reserve-1",
      .details.reserve_withdraw.amount = "EUR:5" },
    /* Try to partially spend (deposit) 1 EUR of the 5 EUR coin (in full)
       (merchant would receive EUR:0.99 due to 1 ct deposit fee) */
    { .oc = OC_DEPOSIT,
      .label = "refresh-deposit-partial",
      .expected_response_code = MHD_HTTP_OK,
      .details.deposit.amount = "EUR:1",
      .details.deposit.coin_ref = "refresh-withdraw-coin-1",
      .details.deposit.wire_details = "{ \"type\":\"TEST\", \"bank\":\"dest bank\", \"account\":42 }",
      .details.deposit.contract = "{ \"items\" : [ { \"name\":\"ice cream\", \"value\":\"EUR:1\" } ] }",
      .details.deposit.transaction_id = 42421 },

    /* Melt the rest of the coin's value (EUR:4.00 = 3x EUR:1.03 + 7x EUR:0.13) */

    { .oc = OC_REFRESH_MELT,
      .label = "refresh-melt-1",
      .expected_response_code = MHD_HTTP_OK,
      .details.refresh_melt.melted_coins = melt_coins_1,
      .details.refresh_melt.fresh_amounts = melt_fresh_amounts_1 },


    /* Complete (successful) melt operation, and withdraw the coins */
    { .oc = OC_REFRESH_REVEAL,
      .label = "refresh-reveal-1",
      .expected_response_code = MHD_HTTP_OK,
      .details.refresh_reveal.melt_ref = "refresh-melt-1" },

    /* Test that /refresh/link works */
    { .oc = OC_REFRESH_LINK,
      .label = "refresh-link-1",
      .expected_response_code = MHD_HTTP_OK,
      .details.refresh_link.reveal_ref = "refresh-reveal-1" },


    /* Test successfully spending coins from the refresh operation:
       first EUR:1 */
    { .oc = OC_DEPOSIT,
      .label = "refresh-deposit-refreshed-1a",
      .expected_response_code = MHD_HTTP_OK,
      .details.deposit.amount = "EUR:1",
      .details.deposit.coin_ref = "refresh-reveal-1",
      .details.deposit.coin_idx = 0,
      .details.deposit.wire_details = "{ \"type\":\"TEST\", \"bank\":\"dest bank\", \"account\":42 }",
      .details.deposit.contract = "{ \"items\": [ { \"name\":\"ice cream\", \"value\":3 } ] }",
      .details.deposit.transaction_id = 2 },

    /* Test successfully spending coins from the refresh operation:
       finally EUR:0.1 */
    { .oc = OC_DEPOSIT,
      .label = "refresh-deposit-refreshed-1b",
      .expected_response_code = MHD_HTTP_OK,
      .details.deposit.amount = "EUR:0.1",
      .details.deposit.coin_ref = "refresh-reveal-1",
      .details.deposit.coin_idx = 4,
      .details.deposit.wire_details = "{ \"type\":\"TEST\", \"bank\":\"dest bank\", \"account\":42 }",
      .details.deposit.contract = "{ \"items\": [ { \"name\":\"ice cream\", \"value\":3 } ] }",
      .details.deposit.transaction_id = 2 },

    /* Test running a failing melt operation (same operation again must fail) */
    { .oc = OC_REFRESH_MELT,
      .label = "refresh-melt-failing",
      .expected_response_code = MHD_HTTP_FORBIDDEN,
      .details.refresh_melt.melted_coins = melt_coins_1,
      .details.refresh_melt.fresh_amounts = melt_fresh_amounts_1 },

    // FIXME: also test with coin that was already melted
    // (signature differs from coin that was deposited...)
    /* *************** end of /refresh testing ************** */

    /* ************** Test tracking API ******************** */
    /* Try resolving a deposit's WTID, as we never triggered
       execution of transactions, the answer should be that
       the mint knows about the deposit, but has no WTID yet. */
    { .oc = OC_DEPOSIT_WTID,
      .label = "deposit-wtid-found",
      .expected_response_code = MHD_HTTP_ACCEPTED,
      .details.deposit_wtid.deposit_ref = "deposit-simple" },
    /* Try resolving a deposit's WTID for a failed deposit.
       As the deposit failed, the answer should be that
       the mint does NOT know about the deposit. */
    { .oc = OC_DEPOSIT_WTID,
      .label = "deposit-wtid-failing",
      .expected_response_code = MHD_HTTP_NOT_FOUND,
      .details.deposit_wtid.deposit_ref = "deposit-double-2" },
    /* Try resolving an undefined (all zeros) WTID; this
       should fail as obviously the mint didn't use that
       WTID value for any transaction. */
    { .oc = OC_WIRE_DEPOSITS,
      .label = "wire-deposit-failing",
      .expected_response_code = MHD_HTTP_NOT_FOUND },

    /* TODO: trigger aggregation logic and then check the
       cases where tracking succeeds! */

    /* ************** End of tracking API testing************* */


#endif

    { .oc = OC_END }
  };

  is = GNUNET_new (struct InterpreterState);
  is->commands = commands;

  ctx = TALER_MINT_init ();
  GNUNET_assert (NULL != ctx);
  ctx_task = GNUNET_SCHEDULER_add_now (&context_task,
                                       ctx);
  mint = TALER_MINT_connect (ctx,
                             "http://localhost:8081",
                             &cert_cb, is,
                             TALER_MINT_OPTION_END);
  GNUNET_assert (NULL != mint);
  shutdown_task
    = GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_relative_multiply
                                    (GNUNET_TIME_UNIT_SECONDS, 150),
                                    &do_shutdown, is);
}


/**
 * Main function for the testcase for the mint API.
 *
 * @param argc expected to be 1
 * @param argv expected to only contain the program name
 */
int
main (int argc,
      char * const *argv)
{
  struct GNUNET_OS_Process *proc;
  struct GNUNET_OS_Process *mintd;

  GNUNET_log_setup ("test-mint-api",
                    "WARNING",
                    NULL);
  proc = GNUNET_OS_start_process (GNUNET_NO,
                                  GNUNET_OS_INHERIT_STD_ALL,
                                  NULL, NULL, NULL,
                                  "taler-mint-keyup",
                                  "taler-mint-keyup",
                                  "-d", "test-mint-home",
                                  "-m", "test-mint-home/master.priv",
                                  NULL);
  GNUNET_OS_process_wait (proc);
  GNUNET_OS_process_destroy (proc);
  mintd = GNUNET_OS_start_process (GNUNET_NO,
                                   GNUNET_OS_INHERIT_STD_ALL,
                                   NULL, NULL, NULL,
                                   "taler-mint-httpd",
                                   "taler-mint-httpd",
                                   "-d", "test-mint-home",
                                   NULL);
  /* give child time to start and bind against the socket */
  fprintf (stderr, "Waiting for taler-mint-httpd to be ready");
  do
    {
      fprintf (stderr, ".");
      sleep (1);
    }
  while (0 != system ("wget -q -t 1 -T 1 http://127.0.0.1:8081/keys -o /dev/null -O /dev/null"));
  fprintf (stderr, "\n");
  result = GNUNET_SYSERR;
  GNUNET_SCHEDULER_run (&run, NULL);
  GNUNET_OS_process_kill (mintd,
                          SIGTERM);
  GNUNET_OS_process_wait (mintd);
  GNUNET_OS_process_destroy (mintd);
  return (GNUNET_OK == result) ? 0 : 1;
}

/* end of test_mint_api.c */