tests/test-visitor-serialization.c

   1 /*
   2  * Unit-tests for visitor-based serialization
   3  *
   4  * Copyright (C) 2014-2015 Red Hat, Inc.
   5  * Copyright IBM, Corp. 2012
   6  *
   7  * Authors:
   8  *  Michael Roth <mdroth@linux.vnet.ibm.com>
   9  *
  10  * This work is licensed under the terms of the GNU GPL, version 2 or later.
  11  * See the COPYING file in the top-level directory.
  12  */
  13
  14 #include "qemu/osdep.h"
  15 #include <float.h>
  16
  17 #include "qemu-common.h"
  18 #include "test-qapi-visit.h"
  19 #include "qapi/error.h"
  20 #include "qapi/qmp/qjson.h"
  21 #include "qapi/qmp/qstring.h"
  22 #include "qapi/qobject-input-visitor.h"
  23 #include "qapi/qobject-output-visitor.h"
  24 #include "qapi/string-input-visitor.h"
  25 #include "qapi/string-output-visitor.h"
  26 #include "qapi/dealloc-visitor.h"
  27
  28 enum PrimitiveTypeKind {
  29     PTYPE_STRING = 0,
  30     PTYPE_BOOLEAN,
  31     PTYPE_NUMBER,
  32     PTYPE_INTEGER,
  33     PTYPE_U8,
  34     PTYPE_U16,
  35     PTYPE_U32,
  36     PTYPE_U64,
  37     PTYPE_S8,
  38     PTYPE_S16,
  39     PTYPE_S32,
  40     PTYPE_S64,
  41     PTYPE_EOL,
  42 };
  43
  44 typedef struct PrimitiveType {
  45     union {
  46         const char *string;
  47         bool boolean;
  48         double number;
  49         int64_t integer;
  50         uint8_t u8;
  51         uint16_t u16;
  52         uint32_t u32;
  53         uint64_t u64;
  54         int8_t s8;
  55         int16_t s16;
  56         int32_t s32;
  57         int64_t s64;
  58         intmax_t max;
  59     } value;
  60     enum PrimitiveTypeKind type;
  61     const char *description;
  62 } PrimitiveType;
  63
  64 typedef struct PrimitiveList {
  65     union {
  66         strList *strings;
  67         boolList *booleans;
  68         numberList *numbers;
  69         intList *integers;
  70         int8List *s8_integers;
  71         int16List *s16_integers;
  72         int32List *s32_integers;
  73         int64List *s64_integers;
  74         uint8List *u8_integers;
  75         uint16List *u16_integers;
  76         uint32List *u32_integers;
  77         uint64List *u64_integers;
  78     } value;
  79     enum PrimitiveTypeKind type;
  80     const char *description;
  81 } PrimitiveList;
  82
  83 /* test helpers */
  84
  85 typedef void (*VisitorFunc)(Visitor *v, void **native, Error **errp);
  86
  87 static void dealloc_helper(void *native_in, VisitorFunc visit, Error **errp)
  88 {
  89     Visitor *v = qapi_dealloc_visitor_new();
  90
  91     visit(v, &native_in, errp);
  92
  93     visit_free(v);
  94 }
  95
  96 static void visit_primitive_type(Visitor *v, void **native, Error **errp)
  97 {
  98     PrimitiveType *pt = *native;
  99     switch(pt->type) {
 100     case PTYPE_STRING:
 101         visit_type_str(v, NULL, (char **)&pt->value.string, errp);
 102         break;
 103     case PTYPE_BOOLEAN:
 104         visit_type_bool(v, NULL, &pt->value.boolean, errp);
 105         break;
 106     case PTYPE_NUMBER:
 107         visit_type_number(v, NULL, &pt->value.number, errp);
 108         break;
 109     case PTYPE_INTEGER:
 110         visit_type_int(v, NULL, &pt->value.integer, errp);
 111         break;
 112     case PTYPE_U8:
 113         visit_type_uint8(v, NULL, &pt->value.u8, errp);
 114         break;
 115     case PTYPE_U16:
 116         visit_type_uint16(v, NULL, &pt->value.u16, errp);
 117         break;
 118     case PTYPE_U32:
 119         visit_type_uint32(v, NULL, &pt->value.u32, errp);
 120         break;
 121     case PTYPE_U64:
 122         visit_type_uint64(v, NULL, &pt->value.u64, errp);
 123         break;
 124     case PTYPE_S8:
 125         visit_type_int8(v, NULL, &pt->value.s8, errp);
 126         break;
 127     case PTYPE_S16:
 128         visit_type_int16(v, NULL, &pt->value.s16, errp);
 129         break;
 130     case PTYPE_S32:
 131         visit_type_int32(v, NULL, &pt->value.s32, errp);
 132         break;
 133     case PTYPE_S64:
 134         visit_type_int64(v, NULL, &pt->value.s64, errp);
 135         break;
 136     case PTYPE_EOL:
 137         g_assert_not_reached();
 138     }
 139 }
 140
 141 static void visit_primitive_list(Visitor *v, void **native, Error **errp)
 142 {
 143     PrimitiveList *pl = *native;
 144     switch (pl->type) {
 145     case PTYPE_STRING:
 146         visit_type_strList(v, NULL, &pl->value.strings, errp);
 147         break;
 148     case PTYPE_BOOLEAN:
 149         visit_type_boolList(v, NULL, &pl->value.booleans, errp);
 150         break;
 151     case PTYPE_NUMBER:
 152         visit_type_numberList(v, NULL, &pl->value.numbers, errp);
 153         break;
 154     case PTYPE_INTEGER:
 155         visit_type_intList(v, NULL, &pl->value.integers, errp);
 156         break;
 157     case PTYPE_S8:
 158         visit_type_int8List(v, NULL, &pl->value.s8_integers, errp);
 159         break;
 160     case PTYPE_S16:
 161         visit_type_int16List(v, NULL, &pl->value.s16_integers, errp);
 162         break;
 163     case PTYPE_S32:
 164         visit_type_int32List(v, NULL, &pl->value.s32_integers, errp);
 165         break;
 166     case PTYPE_S64:
 167         visit_type_int64List(v, NULL, &pl->value.s64_integers, errp);
 168         break;
 169     case PTYPE_U8:
 170         visit_type_uint8List(v, NULL, &pl->value.u8_integers, errp);
 171         break;
 172     case PTYPE_U16:
 173         visit_type_uint16List(v, NULL, &pl->value.u16_integers, errp);
 174         break;
 175     case PTYPE_U32:
 176         visit_type_uint32List(v, NULL, &pl->value.u32_integers, errp);
 177         break;
 178     case PTYPE_U64:
 179         visit_type_uint64List(v, NULL, &pl->value.u64_integers, errp);
 180         break;
 181     default:
 182         g_assert_not_reached();
 183     }
 184 }
 185
 186
 187 static TestStruct *struct_create(void)
 188 {
 189     TestStruct *ts = g_malloc0(sizeof(*ts));
 190     ts->integer = -42;
 191     ts->boolean = true;
 192     ts->string = strdup("test string");
 193     return ts;
 194 }
 195
 196 static void struct_compare(TestStruct *ts1, TestStruct *ts2)
 197 {
 198     g_assert(ts1);
 199     g_assert(ts2);
 200     g_assert_cmpint(ts1->integer, ==, ts2->integer);
 201     g_assert(ts1->boolean == ts2->boolean);
 202     g_assert_cmpstr(ts1->string, ==, ts2->string);
 203 }
 204
 205 static void struct_cleanup(TestStruct *ts)
 206 {
 207     g_free(ts->string);
 208     g_free(ts);
 209 }
 210
 211 static void visit_struct(Visitor *v, void **native, Error **errp)
 212 {
 213     visit_type_TestStruct(v, NULL, (TestStruct **)native, errp);
 214 }
 215
 216 static UserDefTwo *nested_struct_create(void)
 217 {
 218     UserDefTwo *udnp = g_malloc0(sizeof(*udnp));
 219     udnp->string0 = strdup("test_string0");
 220     udnp->dict1 = g_malloc0(sizeof(*udnp->dict1));
 221     udnp->dict1->string1 = strdup("test_string1");
 222     udnp->dict1->dict2 = g_malloc0(sizeof(*udnp->dict1->dict2));
 223     udnp->dict1->dict2->userdef = g_new0(UserDefOne, 1);
 224     udnp->dict1->dict2->userdef->integer = 42;
 225     udnp->dict1->dict2->userdef->string = strdup("test_string");
 226     udnp->dict1->dict2->string = strdup("test_string2");
 227     udnp->dict1->dict3 = g_malloc0(sizeof(*udnp->dict1->dict3));
 228     udnp->dict1->has_dict3 = true;
 229     udnp->dict1->dict3->userdef = g_new0(UserDefOne, 1);
 230     udnp->dict1->dict3->userdef->integer = 43;
 231     udnp->dict1->dict3->userdef->string = strdup("test_string");
 232     udnp->dict1->dict3->string = strdup("test_string3");
 233     return udnp;
 234 }
 235
 236 static void nested_struct_compare(UserDefTwo *udnp1, UserDefTwo *udnp2)
 237 {
 238     g_assert(udnp1);
 239     g_assert(udnp2);
 240     g_assert_cmpstr(udnp1->string0, ==, udnp2->string0);
 241     g_assert_cmpstr(udnp1->dict1->string1, ==, udnp2->dict1->string1);
 242     g_assert_cmpint(udnp1->dict1->dict2->userdef->integer, ==,
 243                     udnp2->dict1->dict2->userdef->integer);
 244     g_assert_cmpstr(udnp1->dict1->dict2->userdef->string, ==,
 245                     udnp2->dict1->dict2->userdef->string);
 246     g_assert_cmpstr(udnp1->dict1->dict2->string, ==,
 247                     udnp2->dict1->dict2->string);
 248     g_assert(udnp1->dict1->has_dict3 == udnp2->dict1->has_dict3);
 249     g_assert_cmpint(udnp1->dict1->dict3->userdef->integer, ==,
 250                     udnp2->dict1->dict3->userdef->integer);
 251     g_assert_cmpstr(udnp1->dict1->dict3->userdef->string, ==,
 252                     udnp2->dict1->dict3->userdef->string);
 253     g_assert_cmpstr(udnp1->dict1->dict3->string, ==,
 254                     udnp2->dict1->dict3->string);
 255 }
 256
 257 static void nested_struct_cleanup(UserDefTwo *udnp)
 258 {
 259     qapi_free_UserDefTwo(udnp);
 260 }
 261
 262 static void visit_nested_struct(Visitor *v, void **native, Error **errp)
 263 {
 264     visit_type_UserDefTwo(v, NULL, (UserDefTwo **)native, errp);
 265 }
 266
 267 static void visit_nested_struct_list(Visitor *v, void **native, Error **errp)
 268 {
 269     visit_type_UserDefTwoList(v, NULL, (UserDefTwoList **)native, errp);
 270 }
 271
 272 /* test cases */
 273
 274 typedef enum VisitorCapabilities {
 275     VCAP_PRIMITIVES = 1,
 276     VCAP_STRUCTURES = 2,
 277     VCAP_LISTS = 4,
 278     VCAP_PRIMITIVE_LISTS = 8,
 279 } VisitorCapabilities;
 280
 281 typedef struct SerializeOps {
 282     void (*serialize)(void *native_in, void **datap,
 283                       VisitorFunc visit, Error **errp);
 284     void (*deserialize)(void **native_out, void *datap,
 285                             VisitorFunc visit, Error **errp);
 286     void (*cleanup)(void *datap);
 287     const char *type;
 288     VisitorCapabilities caps;
 289 } SerializeOps;
 290
 291 typedef struct TestArgs {
 292     const SerializeOps *ops;
 293     void *test_data;
 294 } TestArgs;
 295
 296 static void test_primitives(gconstpointer opaque)
 297 {
 298     TestArgs *args = (TestArgs *) opaque;
 299     const SerializeOps *ops = args->ops;
 300     PrimitiveType *pt = args->test_data;
 301     PrimitiveType *pt_copy = g_malloc0(sizeof(*pt_copy));
 302     void *serialize_data;
 303
 304     pt_copy->type = pt->type;
 305     ops->serialize(pt, &serialize_data, visit_primitive_type, &error_abort);
 306     ops->deserialize((void **)&pt_copy, serialize_data, visit_primitive_type,
 307                      &error_abort);
 308
 309     g_assert(pt_copy != NULL);
 310     if (pt->type == PTYPE_STRING) {
 311         g_assert_cmpstr(pt->value.string, ==, pt_copy->value.string);
 312         g_free((char *)pt_copy->value.string);
 313     } else if (pt->type == PTYPE_NUMBER) {
 314         GString *double_expected = g_string_new("");
 315         GString *double_actual = g_string_new("");
 316         /* we serialize with %f for our reference visitors, so rather than fuzzy
 317          * floating math to test "equality", just compare the formatted values
 318          */
 319         g_string_printf(double_expected, "%.6f", pt->value.number);
 320         g_string_printf(double_actual, "%.6f", pt_copy->value.number);
 321         g_assert_cmpstr(double_actual->str, ==, double_expected->str);
 322
 323         g_string_free(double_expected, true);
 324         g_string_free(double_actual, true);
 325     } else if (pt->type == PTYPE_BOOLEAN) {
 326         g_assert_cmpint(!!pt->value.max, ==, !!pt->value.max);
 327     } else {
 328         g_assert_cmpint(pt->value.max, ==, pt_copy->value.max);
 329     }
 330
 331     ops->cleanup(serialize_data);
 332     g_free(args);
 333     g_free(pt_copy);
 334 }
 335
 336 static void test_primitive_lists(gconstpointer opaque)
 337 {
 338     TestArgs *args = (TestArgs *) opaque;
 339     const SerializeOps *ops = args->ops;
 340     PrimitiveType *pt = args->test_data;
 341     PrimitiveList pl = { .value = { NULL } };
 342     PrimitiveList pl_copy = { .value = { NULL } };
 343     PrimitiveList *pl_copy_ptr = &pl_copy;
 344     void *serialize_data;
 345     void *cur_head = NULL;
 346     int i;
 347
 348     pl.type = pl_copy.type = pt->type;
 349
 350     /* build up our list of primitive types */
 351     for (i = 0; i < 32; i++) {
 352         switch (pl.type) {
 353         case PTYPE_STRING: {
 354             strList *tmp = g_new0(strList, 1);
 355             tmp->value = g_strdup(pt->value.string);
 356             if (pl.value.strings == NULL) {
 357                 pl.value.strings = tmp;
 358             } else {
 359                 tmp->next = pl.value.strings;
 360                 pl.value.strings = tmp;
 361             }
 362             break;
 363         }
 364         case PTYPE_INTEGER: {
 365             intList *tmp = g_new0(intList, 1);
 366             tmp->value = pt->value.integer;
 367             if (pl.value.integers == NULL) {
 368                 pl.value.integers = tmp;
 369             } else {
 370                 tmp->next = pl.value.integers;
 371                 pl.value.integers = tmp;
 372             }
 373             break;
 374         }
 375         case PTYPE_S8: {
 376             int8List *tmp = g_new0(int8List, 1);
 377             tmp->value = pt->value.s8;
 378             if (pl.value.s8_integers == NULL) {
 379                 pl.value.s8_integers = tmp;
 380             } else {
 381                 tmp->next = pl.value.s8_integers;
 382                 pl.value.s8_integers = tmp;
 383             }
 384             break;
 385         }
 386         case PTYPE_S16: {
 387             int16List *tmp = g_new0(int16List, 1);
 388             tmp->value = pt->value.s16;
 389             if (pl.value.s16_integers == NULL) {
 390                 pl.value.s16_integers = tmp;
 391             } else {
 392                 tmp->next = pl.value.s16_integers;
 393                 pl.value.s16_integers = tmp;
 394             }
 395             break;
 396         }
 397         case PTYPE_S32: {
 398             int32List *tmp = g_new0(int32List, 1);
 399             tmp->value = pt->value.s32;
 400             if (pl.value.s32_integers == NULL) {
 401                 pl.value.s32_integers = tmp;
 402             } else {
 403                 tmp->next = pl.value.s32_integers;
 404                 pl.value.s32_integers = tmp;
 405             }
 406             break;
 407         }
 408         case PTYPE_S64: {
 409             int64List *tmp = g_new0(int64List, 1);
 410             tmp->value = pt->value.s64;
 411             if (pl.value.s64_integers == NULL) {
 412                 pl.value.s64_integers = tmp;
 413             } else {
 414                 tmp->next = pl.value.s64_integers;
 415                 pl.value.s64_integers = tmp;
 416             }
 417             break;
 418         }
 419         case PTYPE_U8: {
 420             uint8List *tmp = g_new0(uint8List, 1);
 421             tmp->value = pt->value.u8;
 422             if (pl.value.u8_integers == NULL) {
 423                 pl.value.u8_integers = tmp;
 424             } else {
 425                 tmp->next = pl.value.u8_integers;
 426                 pl.value.u8_integers = tmp;
 427             }
 428             break;
 429         }
 430         case PTYPE_U16: {
 431             uint16List *tmp = g_new0(uint16List, 1);
 432             tmp->value = pt->value.u16;
 433             if (pl.value.u16_integers == NULL) {
 434                 pl.value.u16_integers = tmp;
 435             } else {
 436                 tmp->next = pl.value.u16_integers;
 437                 pl.value.u16_integers = tmp;
 438             }
 439             break;
 440         }
 441         case PTYPE_U32: {
 442             uint32List *tmp = g_new0(uint32List, 1);
 443             tmp->value = pt->value.u32;
 444             if (pl.value.u32_integers == NULL) {
 445                 pl.value.u32_integers = tmp;
 446             } else {
 447                 tmp->next = pl.value.u32_integers;
 448                 pl.value.u32_integers = tmp;
 449             }
 450             break;
 451         }
 452         case PTYPE_U64: {
 453             uint64List *tmp = g_new0(uint64List, 1);
 454             tmp->value = pt->value.u64;
 455             if (pl.value.u64_integers == NULL) {
 456                 pl.value.u64_integers = tmp;
 457             } else {
 458                 tmp->next = pl.value.u64_integers;
 459                 pl.value.u64_integers = tmp;
 460             }
 461             break;
 462         }
 463         case PTYPE_NUMBER: {
 464             numberList *tmp = g_new0(numberList, 1);
 465             tmp->value = pt->value.number;
 466             if (pl.value.numbers == NULL) {
 467                 pl.value.numbers = tmp;
 468             } else {
 469                 tmp->next = pl.value.numbers;
 470                 pl.value.numbers = tmp;
 471             }
 472             break;
 473         }
 474         case PTYPE_BOOLEAN: {
 475             boolList *tmp = g_new0(boolList, 1);
 476             tmp->value = pt->value.boolean;
 477             if (pl.value.booleans == NULL) {
 478                 pl.value.booleans = tmp;
 479             } else {
 480                 tmp->next = pl.value.booleans;
 481                 pl.value.booleans = tmp;
 482             }
 483             break;
 484         }
 485         default:
 486             g_assert_not_reached();
 487         }
 488     }
 489
 490     ops->serialize((void **)&pl, &serialize_data, visit_primitive_list,
 491                    &error_abort);
 492     ops->deserialize((void **)&pl_copy_ptr, serialize_data,
 493                      visit_primitive_list, &error_abort);
 494
 495     i = 0;
 496
 497     /* compare our deserialized list of primitives to the original */
 498     do {
 499         switch (pl_copy.type) {
 500         case PTYPE_STRING: {
 501             strList *ptr;
 502             if (cur_head) {
 503                 ptr = cur_head;
 504                 cur_head = ptr->next;
 505             } else {
 506                 cur_head = ptr = pl_copy.value.strings;
 507             }
 508             g_assert_cmpstr(pt->value.string, ==, ptr->value);
 509             break;
 510         }
 511         case PTYPE_INTEGER: {
 512             intList *ptr;
 513             if (cur_head) {
 514                 ptr = cur_head;
 515                 cur_head = ptr->next;
 516             } else {
 517                 cur_head = ptr = pl_copy.value.integers;
 518             }
 519             g_assert_cmpint(pt->value.integer, ==, ptr->value);
 520             break;
 521         }
 522         case PTYPE_S8: {
 523             int8List *ptr;
 524             if (cur_head) {
 525                 ptr = cur_head;
 526                 cur_head = ptr->next;
 527             } else {
 528                 cur_head = ptr = pl_copy.value.s8_integers;
 529             }
 530             g_assert_cmpint(pt->value.s8, ==, ptr->value);
 531             break;
 532         }
 533         case PTYPE_S16: {
 534             int16List *ptr;
 535             if (cur_head) {
 536                 ptr = cur_head;
 537                 cur_head = ptr->next;
 538             } else {
 539                 cur_head = ptr = pl_copy.value.s16_integers;
 540             }
 541             g_assert_cmpint(pt->value.s16, ==, ptr->value);
 542             break;
 543         }
 544         case PTYPE_S32: {
 545             int32List *ptr;
 546             if (cur_head) {
 547                 ptr = cur_head;
 548                 cur_head = ptr->next;
 549             } else {
 550                 cur_head = ptr = pl_copy.value.s32_integers;
 551             }
 552             g_assert_cmpint(pt->value.s32, ==, ptr->value);
 553             break;
 554         }
 555         case PTYPE_S64: {
 556             int64List *ptr;
 557             if (cur_head) {
 558                 ptr = cur_head;
 559                 cur_head = ptr->next;
 560             } else {
 561                 cur_head = ptr = pl_copy.value.s64_integers;
 562             }
 563             g_assert_cmpint(pt->value.s64, ==, ptr->value);
 564             break;
 565         }
 566         case PTYPE_U8: {
 567             uint8List *ptr;
 568             if (cur_head) {
 569                 ptr = cur_head;
 570                 cur_head = ptr->next;
 571             } else {
 572                 cur_head = ptr = pl_copy.value.u8_integers;
 573             }
 574             g_assert_cmpint(pt->value.u8, ==, ptr->value);
 575             break;
 576         }
 577         case PTYPE_U16: {
 578             uint16List *ptr;
 579             if (cur_head) {
 580                 ptr = cur_head;
 581                 cur_head = ptr->next;
 582             } else {
 583                 cur_head = ptr = pl_copy.value.u16_integers;
 584             }
 585             g_assert_cmpint(pt->value.u16, ==, ptr->value);
 586             break;
 587         }
 588         case PTYPE_U32: {
 589             uint32List *ptr;
 590             if (cur_head) {
 591                 ptr = cur_head;
 592                 cur_head = ptr->next;
 593             } else {
 594                 cur_head = ptr = pl_copy.value.u32_integers;
 595             }
 596             g_assert_cmpint(pt->value.u32, ==, ptr->value);
 597             break;
 598         }
 599         case PTYPE_U64: {
 600             uint64List *ptr;
 601             if (cur_head) {
 602                 ptr = cur_head;
 603                 cur_head = ptr->next;
 604             } else {
 605                 cur_head = ptr = pl_copy.value.u64_integers;
 606             }
 607             g_assert_cmpint(pt->value.u64, ==, ptr->value);
 608             break;
 609         }
 610         case PTYPE_NUMBER: {
 611             numberList *ptr;
 612             GString *double_expected = g_string_new("");
 613             GString *double_actual = g_string_new("");
 614             if (cur_head) {
 615                 ptr = cur_head;
 616                 cur_head = ptr->next;
 617             } else {
 618                 cur_head = ptr = pl_copy.value.numbers;
 619             }
 620             /* we serialize with %f for our reference visitors, so rather than
 621              * fuzzy floating math to test "equality", just compare the
 622              * formatted values
 623              */
 624             g_string_printf(double_expected, "%.6f", pt->value.number);
 625             g_string_printf(double_actual, "%.6f", ptr->value);
 626             g_assert_cmpstr(double_actual->str, ==, double_expected->str);
 627             g_string_free(double_expected, true);
 628             g_string_free(double_actual, true);
 629             break;
 630         }
 631         case PTYPE_BOOLEAN: {
 632             boolList *ptr;
 633             if (cur_head) {
 634                 ptr = cur_head;
 635                 cur_head = ptr->next;
 636             } else {
 637                 cur_head = ptr = pl_copy.value.booleans;
 638             }
 639             g_assert_cmpint(!!pt->value.boolean, ==, !!ptr->value);
 640             break;
 641         }
 642         default:
 643             g_assert_not_reached();
 644         }
 645         i++;
 646     } while (cur_head);
 647
 648     g_assert_cmpint(i, ==, 33);
 649
 650     ops->cleanup(serialize_data);
 651     dealloc_helper(&pl, visit_primitive_list, &error_abort);
 652     dealloc_helper(&pl_copy, visit_primitive_list, &error_abort);
 653     g_free(args);
 654 }
 655
 656 static void test_struct(gconstpointer opaque)
 657 {
 658     TestArgs *args = (TestArgs *) opaque;
 659     const SerializeOps *ops = args->ops;
 660     TestStruct *ts = struct_create();
 661     TestStruct *ts_copy = NULL;
 662     void *serialize_data;
 663
 664     ops->serialize(ts, &serialize_data, visit_struct, &error_abort);
 665     ops->deserialize((void **)&ts_copy, serialize_data, visit_struct,
 666                      &error_abort);
 667
 668     struct_compare(ts, ts_copy);
 669
 670     struct_cleanup(ts);
 671     struct_cleanup(ts_copy);
 672
 673     ops->cleanup(serialize_data);
 674     g_free(args);
 675 }
 676
 677 static void test_nested_struct(gconstpointer opaque)
 678 {
 679     TestArgs *args = (TestArgs *) opaque;
 680     const SerializeOps *ops = args->ops;
 681     UserDefTwo *udnp = nested_struct_create();
 682     UserDefTwo *udnp_copy = NULL;
 683     void *serialize_data;
 684
 685     ops->serialize(udnp, &serialize_data, visit_nested_struct, &error_abort);
 686     ops->deserialize((void **)&udnp_copy, serialize_data, visit_nested_struct,
 687                      &error_abort);
 688
 689     nested_struct_compare(udnp, udnp_copy);
 690
 691     nested_struct_cleanup(udnp);
 692     nested_struct_cleanup(udnp_copy);
 693
 694     ops->cleanup(serialize_data);
 695     g_free(args);
 696 }
 697
 698 static void test_nested_struct_list(gconstpointer opaque)
 699 {
 700     TestArgs *args = (TestArgs *) opaque;
 701     const SerializeOps *ops = args->ops;
 702     UserDefTwoList *listp = NULL, *tmp, *tmp_copy, *listp_copy = NULL;
 703     void *serialize_data;
 704     int i = 0;
 705
 706     for (i = 0; i < 8; i++) {
 707         tmp = g_new0(UserDefTwoList, 1);
 708         tmp->value = nested_struct_create();
 709         tmp->next = listp;
 710         listp = tmp;
 711     }
 712
 713     ops->serialize(listp, &serialize_data, visit_nested_struct_list,
 714                    &error_abort);
 715     ops->deserialize((void **)&listp_copy, serialize_data,
 716                      visit_nested_struct_list, &error_abort);
 717
 718     tmp = listp;
 719     tmp_copy = listp_copy;
 720     while (listp_copy) {
 721         g_assert(listp);
 722         nested_struct_compare(listp->value, listp_copy->value);
 723         listp = listp->next;
 724         listp_copy = listp_copy->next;
 725     }
 726
 727     qapi_free_UserDefTwoList(tmp);
 728     qapi_free_UserDefTwoList(tmp_copy);
 729
 730     ops->cleanup(serialize_data);
 731     g_free(args);
 732 }
 733
 734 static PrimitiveType pt_values[] = {
 735     /* string tests */
 736     {
 737         .description = "string_empty",
 738         .type = PTYPE_STRING,
 739         .value.string = "",
 740     },
 741     {
 742         .description = "string_whitespace",
 743         .type = PTYPE_STRING,
 744         .value.string = "a b  c\td",
 745     },
 746     {
 747         .description = "string_newlines",
 748         .type = PTYPE_STRING,
 749         .value.string = "a\nb\n",
 750     },
 751     {
 752         .description = "string_commas",
 753         .type = PTYPE_STRING,
 754         .value.string = "a,b, c,d",
 755     },
 756     {
 757         .description = "string_single_quoted",
 758         .type = PTYPE_STRING,
 759         .value.string = "'a b',cd",
 760     },
 761     {
 762         .description = "string_double_quoted",
 763         .type = PTYPE_STRING,
 764         .value.string = "\"a b\",cd",
 765     },
 766     /* boolean tests */
 767     {
 768         .description = "boolean_true1",
 769         .type = PTYPE_BOOLEAN,
 770         .value.boolean = true,
 771     },
 772     {
 773         .description = "boolean_true2",
 774         .type = PTYPE_BOOLEAN,
 775         .value.boolean = 8,
 776     },
 777     {
 778         .description = "boolean_true3",
 779         .type = PTYPE_BOOLEAN,
 780         .value.boolean = -1,
 781     },
 782     {
 783         .description = "boolean_false1",
 784         .type = PTYPE_BOOLEAN,
 785         .value.boolean = false,
 786     },
 787     {
 788         .description = "boolean_false2",
 789         .type = PTYPE_BOOLEAN,
 790         .value.boolean = 0,
 791     },
 792     /* number tests (double) */
 793     /* note: we format these to %.6f before comparing, since that's how
 794      * we serialize them and it doesn't make sense to check precision
 795      * beyond that.
 796      */
 797     {
 798         .description = "number_sanity1",
 799         .type = PTYPE_NUMBER,
 800         .value.number = -1,
 801     },
 802     {
 803         .description = "number_sanity2",
 804         .type = PTYPE_NUMBER,
 805         .value.number = 3.14159265,
 806     },
 807     {
 808         .description = "number_min",
 809         .type = PTYPE_NUMBER,
 810         .value.number = DBL_MIN,
 811     },
 812     {
 813         .description = "number_max",
 814         .type = PTYPE_NUMBER,
 815         .value.number = DBL_MAX,
 816     },
 817     /* integer tests (int64) */
 818     {
 819         .description = "integer_sanity1",
 820         .type = PTYPE_INTEGER,
 821         .value.integer = -1,
 822     },
 823     {
 824         .description = "integer_sanity2",
 825         .type = PTYPE_INTEGER,
 826         .value.integer = INT64_MAX / 2 + 1,
 827     },
 828     {
 829         .description = "integer_min",
 830         .type = PTYPE_INTEGER,
 831         .value.integer = INT64_MIN,
 832     },
 833     {
 834         .description = "integer_max",
 835         .type = PTYPE_INTEGER,
 836         .value.integer = INT64_MAX,
 837     },
 838     /* uint8 tests */
 839     {
 840         .description = "uint8_sanity1",
 841         .type = PTYPE_U8,
 842         .value.u8 = 1,
 843     },
 844     {
 845         .description = "uint8_sanity2",
 846         .type = PTYPE_U8,
 847         .value.u8 = UINT8_MAX / 2 + 1,
 848     },
 849     {
 850         .description = "uint8_min",
 851         .type = PTYPE_U8,
 852         .value.u8 = 0,
 853     },
 854     {
 855         .description = "uint8_max",
 856         .type = PTYPE_U8,
 857         .value.u8 = UINT8_MAX,
 858     },
 859     /* uint16 tests */
 860     {
 861         .description = "uint16_sanity1",
 862         .type = PTYPE_U16,
 863         .value.u16 = 1,
 864     },
 865     {
 866         .description = "uint16_sanity2",
 867         .type = PTYPE_U16,
 868         .value.u16 = UINT16_MAX / 2 + 1,
 869     },
 870     {
 871         .description = "uint16_min",
 872         .type = PTYPE_U16,
 873         .value.u16 = 0,
 874     },
 875     {
 876         .description = "uint16_max",
 877         .type = PTYPE_U16,
 878         .value.u16 = UINT16_MAX,
 879     },
 880     /* uint32 tests */
 881     {
 882         .description = "uint32_sanity1",
 883         .type = PTYPE_U32,
 884         .value.u32 = 1,
 885     },
 886     {
 887         .description = "uint32_sanity2",
 888         .type = PTYPE_U32,
 889         .value.u32 = UINT32_MAX / 2 + 1,
 890     },
 891     {
 892         .description = "uint32_min",
 893         .type = PTYPE_U32,
 894         .value.u32 = 0,
 895     },
 896     {
 897         .description = "uint32_max",
 898         .type = PTYPE_U32,
 899         .value.u32 = UINT32_MAX,
 900     },
 901     /* uint64 tests */
 902     {
 903         .description = "uint64_sanity1",
 904         .type = PTYPE_U64,
 905         .value.u64 = 1,
 906     },
 907     {
 908         .description = "uint64_sanity2",
 909         .type = PTYPE_U64,
 910         .value.u64 = UINT64_MAX / 2 + 1,
 911     },
 912     {
 913         .description = "uint64_min",
 914         .type = PTYPE_U64,
 915         .value.u64 = 0,
 916     },
 917     {
 918         .description = "uint64_max",
 919         .type = PTYPE_U64,
 920         .value.u64 = UINT64_MAX,
 921     },
 922     /* int8 tests */
 923     {
 924         .description = "int8_sanity1",
 925         .type = PTYPE_S8,
 926         .value.s8 = -1,
 927     },
 928     {
 929         .description = "int8_sanity2",
 930         .type = PTYPE_S8,
 931         .value.s8 = INT8_MAX / 2 + 1,
 932     },
 933     {
 934         .description = "int8_min",
 935         .type = PTYPE_S8,
 936         .value.s8 = INT8_MIN,
 937     },
 938     {
 939         .description = "int8_max",
 940         .type = PTYPE_S8,
 941         .value.s8 = INT8_MAX,
 942     },
 943     /* int16 tests */
 944     {
 945         .description = "int16_sanity1",
 946         .type = PTYPE_S16,
 947         .value.s16 = -1,
 948     },
 949     {
 950         .description = "int16_sanity2",
 951         .type = PTYPE_S16,
 952         .value.s16 = INT16_MAX / 2 + 1,
 953     },
 954     {
 955         .description = "int16_min",
 956         .type = PTYPE_S16,
 957         .value.s16 = INT16_MIN,
 958     },
 959     {
 960         .description = "int16_max",
 961         .type = PTYPE_S16,
 962         .value.s16 = INT16_MAX,
 963     },
 964     /* int32 tests */
 965     {
 966         .description = "int32_sanity1",
 967         .type = PTYPE_S32,
 968         .value.s32 = -1,
 969     },
 970     {
 971         .description = "int32_sanity2",
 972         .type = PTYPE_S32,
 973         .value.s32 = INT32_MAX / 2 + 1,
 974     },
 975     {
 976         .description = "int32_min",
 977         .type = PTYPE_S32,
 978         .value.s32 = INT32_MIN,
 979     },
 980     {
 981         .description = "int32_max",
 982         .type = PTYPE_S32,
 983         .value.s32 = INT32_MAX,
 984     },
 985     /* int64 tests */
 986     {
 987         .description = "int64_sanity1",
 988         .type = PTYPE_S64,
 989         .value.s64 = -1,
 990     },
 991     {
 992         .description = "int64_sanity2",
 993         .type = PTYPE_S64,
 994         .value.s64 = INT64_MAX / 2 + 1,
 995     },
 996     {
 997         .description = "int64_min",
 998         .type = PTYPE_S64,
 999         .value.s64 = INT64_MIN,
1000     },
1001     {
1002         .description = "int64_max",
1003         .type = PTYPE_S64,
1004         .value.s64 = INT64_MAX,
1005     },
1006     { .type = PTYPE_EOL }
1007 };
1008
1009 /* visitor-specific op implementations */
1010
1011 typedef struct QmpSerializeData {
1012     Visitor *qov;
1013     QObject *obj;
1014     Visitor *qiv;
1015 } QmpSerializeData;
1016
1017 static void qmp_serialize(void *native_in, void **datap,
1018                           VisitorFunc visit, Error **errp)
1019 {
1020     QmpSerializeData *d = g_malloc0(sizeof(*d));
1021
1022     d->qov = qobject_output_visitor_new(&d->obj);
1023     visit(d->qov, &native_in, errp);
1024     *datap = d;
1025 }
1026
1027 static void qmp_deserialize(void **native_out, void *datap,
1028                             VisitorFunc visit, Error **errp)
1029 {
1030     QmpSerializeData *d = datap;
1031     QString *output_json;
1032     QObject *obj_orig, *obj;
1033
1034     visit_complete(d->qov, &d->obj);
1035     obj_orig = d->obj;
1036     output_json = qobject_to_json(obj_orig);
1037     obj = qobject_from_json(qstring_get_str(output_json), &error_abort);
1038
1039     QDECREF(output_json);
1040     d->qiv = qobject_input_visitor_new(obj);
1041     qobject_decref(obj_orig);
1042     qobject_decref(obj);
1043     visit(d->qiv, native_out, errp);
1044 }
1045
1046 static void qmp_cleanup(void *datap)
1047 {
1048     QmpSerializeData *d = datap;
1049     visit_free(d->qov);
1050     visit_free(d->qiv);
1051
1052     g_free(d);
1053 }
1054
1055 typedef struct StringSerializeData {
1056     char *string;
1057     Visitor *sov;
1058     Visitor *siv;
1059 } StringSerializeData;
1060
1061 static void string_serialize(void *native_in, void **datap,
1062                              VisitorFunc visit, Error **errp)
1063 {
1064     StringSerializeData *d = g_malloc0(sizeof(*d));
1065
1066     d->sov = string_output_visitor_new(false, &d->string);
1067     visit(d->sov, &native_in, errp);
1068     *datap = d;
1069 }
1070
1071 static void string_deserialize(void **native_out, void *datap,
1072                                VisitorFunc visit, Error **errp)
1073 {
1074     StringSerializeData *d = datap;
1075
1076     visit_complete(d->sov, &d->string);
1077     d->siv = string_input_visitor_new(d->string);
1078     visit(d->siv, native_out, errp);
1079 }
1080
1081 static void string_cleanup(void *datap)
1082 {
1083     StringSerializeData *d = datap;
1084
1085     visit_free(d->sov);
1086     visit_free(d->siv);
1087     g_free(d->string);
1088     g_free(d);
1089 }
1090
1091 /* visitor registration, test harness */
1092
1093 /* note: to function interchangeably as a serialization mechanism your
1094  * visitor test implementation should pass the test cases for all visitor
1095  * capabilities: primitives, structures, and lists
1096  */
1097 static const SerializeOps visitors[] = {
1098     {
1099         .type = "QMP",
1100         .serialize = qmp_serialize,
1101         .deserialize = qmp_deserialize,
1102         .cleanup = qmp_cleanup,
1103         .caps = VCAP_PRIMITIVES | VCAP_STRUCTURES | VCAP_LISTS |
1104                 VCAP_PRIMITIVE_LISTS
1105     },
1106     {
1107         .type = "String",
1108         .serialize = string_serialize,
1109         .deserialize = string_deserialize,
1110         .cleanup = string_cleanup,
1111         .caps = VCAP_PRIMITIVES
1112     },
1113     { NULL }
1114 };
1115
1116 static void add_visitor_type(const SerializeOps *ops)
1117 {
1118     char testname_prefix[128];
1119     char testname[128];
1120     TestArgs *args;
1121     int i = 0;
1122
1123     sprintf(testname_prefix, "/visitor/serialization/%s", ops->type);
1124
1125     if (ops->caps & VCAP_PRIMITIVES) {
1126         while (pt_values[i].type != PTYPE_EOL) {
1127             sprintf(testname, "%s/primitives/%s", testname_prefix,
1128                     pt_values[i].description);
1129             args = g_malloc0(sizeof(*args));
1130             args->ops = ops;
1131             args->test_data = &pt_values[i];
1132             g_test_add_data_func(testname, args, test_primitives);
1133             i++;
1134         }
1135     }
1136
1137     if (ops->caps & VCAP_STRUCTURES) {
1138         sprintf(testname, "%s/struct", testname_prefix);
1139         args = g_malloc0(sizeof(*args));
1140         args->ops = ops;
1141         args->test_data = NULL;
1142         g_test_add_data_func(testname, args, test_struct);
1143
1144         sprintf(testname, "%s/nested_struct", testname_prefix);
1145         args = g_malloc0(sizeof(*args));
1146         args->ops = ops;
1147         args->test_data = NULL;
1148         g_test_add_data_func(testname, args, test_nested_struct);
1149     }
1150
1151     if (ops->caps & VCAP_LISTS) {
1152         sprintf(testname, "%s/nested_struct_list", testname_prefix);
1153         args = g_malloc0(sizeof(*args));
1154         args->ops = ops;
1155         args->test_data = NULL;
1156         g_test_add_data_func(testname, args, test_nested_struct_list);
1157     }
1158
1159     if (ops->caps & VCAP_PRIMITIVE_LISTS) {
1160         i = 0;
1161         while (pt_values[i].type != PTYPE_EOL) {
1162             sprintf(testname, "%s/primitive_list/%s", testname_prefix,
1163                     pt_values[i].description);
1164             args = g_malloc0(sizeof(*args));
1165             args->ops = ops;
1166             args->test_data = &pt_values[i];
1167             g_test_add_data_func(testname, args, test_primitive_lists);
1168             i++;
1169         }
1170     }
1171 }
1172
1173 int main(int argc, char **argv)
1174 {
1175     int i = 0;
1176
1177     g_test_init(&argc, &argv, NULL);
1178
1179     while (visitors[i].type != NULL) {
1180         add_visitor_type(&visitors[i]);
1181         i++;
1182     }
1183
1184     g_test_run();
1185
1186     return 0;
1187 }