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 <glib.h>
  16 #include <float.h>
  17
  18 #include "qemu-common.h"
  19 #include "test-qapi-types.h"
  20 #include "test-qapi-visit.h"
  21 #include "qapi/error.h"
  22 #include "qapi/qmp/types.h"
  23 #include "qapi/qmp-input-visitor.h"
  24 #include "qapi/qmp-output-visitor.h"
  25 #include "qapi/string-input-visitor.h"
  26 #include "qapi/string-output-visitor.h"
  27 #include "qapi-types.h"
  28 #include "qapi-visit.h"
  29 #include "qapi/dealloc-visitor.h"
  30
  31 enum PrimitiveTypeKind {
  32     PTYPE_STRING = 0,
  33     PTYPE_BOOLEAN,
  34     PTYPE_NUMBER,
  35     PTYPE_INTEGER,
  36     PTYPE_U8,
  37     PTYPE_U16,
  38     PTYPE_U32,
  39     PTYPE_U64,
  40     PTYPE_S8,
  41     PTYPE_S16,
  42     PTYPE_S32,
  43     PTYPE_S64,
  44     PTYPE_EOL,
  45 };
  46
  47 typedef struct PrimitiveType {
  48     union {
  49         const char *string;
  50         bool boolean;
  51         double number;
  52         int64_t integer;
  53         uint8_t u8;
  54         uint16_t u16;
  55         uint32_t u32;
  56         uint64_t u64;
  57         int8_t s8;
  58         int16_t s16;
  59         int32_t s32;
  60         int64_t s64;
  61         intmax_t max;
  62     } value;
  63     enum PrimitiveTypeKind type;
  64     const char *description;
  65 } PrimitiveType;
  66
  67 typedef struct PrimitiveList {
  68     union {
  69         strList *strings;
  70         boolList *booleans;
  71         numberList *numbers;
  72         intList *integers;
  73         int8List *s8_integers;
  74         int16List *s16_integers;
  75         int32List *s32_integers;
  76         int64List *s64_integers;
  77         uint8List *u8_integers;
  78         uint16List *u16_integers;
  79         uint32List *u32_integers;
  80         uint64List *u64_integers;
  81     } value;
  82     enum PrimitiveTypeKind type;
  83     const char *description;
  84 } PrimitiveList;
  85
  86 /* test helpers */
  87
  88 typedef void (*VisitorFunc)(Visitor *v, void **native, Error **errp);
  89
  90 static void dealloc_helper(void *native_in, VisitorFunc visit, Error **errp)
  91 {
  92     QapiDeallocVisitor *qdv = qapi_dealloc_visitor_new();
  93
  94     visit(qapi_dealloc_get_visitor(qdv), &native_in, errp);
  95
  96     qapi_dealloc_visitor_cleanup(qdv);
  97 }
  98
  99 static void visit_primitive_type(Visitor *v, void **native, Error **errp)
 100 {
 101     PrimitiveType *pt = *native;
 102     switch(pt->type) {
 103     case PTYPE_STRING:
 104         visit_type_str(v, NULL, (char **)&pt->value.string, errp);
 105         break;
 106     case PTYPE_BOOLEAN:
 107         visit_type_bool(v, NULL, &pt->value.boolean, errp);
 108         break;
 109     case PTYPE_NUMBER:
 110         visit_type_number(v, NULL, &pt->value.number, errp);
 111         break;
 112     case PTYPE_INTEGER:
 113         visit_type_int(v, NULL, &pt->value.integer, errp);
 114         break;
 115     case PTYPE_U8:
 116         visit_type_uint8(v, NULL, &pt->value.u8, errp);
 117         break;
 118     case PTYPE_U16:
 119         visit_type_uint16(v, NULL, &pt->value.u16, errp);
 120         break;
 121     case PTYPE_U32:
 122         visit_type_uint32(v, NULL, &pt->value.u32, errp);
 123         break;
 124     case PTYPE_U64:
 125         visit_type_uint64(v, NULL, &pt->value.u64, errp);
 126         break;
 127     case PTYPE_S8:
 128         visit_type_int8(v, NULL, &pt->value.s8, errp);
 129         break;
 130     case PTYPE_S16:
 131         visit_type_int16(v, NULL, &pt->value.s16, errp);
 132         break;
 133     case PTYPE_S32:
 134         visit_type_int32(v, NULL, &pt->value.s32, errp);
 135         break;
 136     case PTYPE_S64:
 137         visit_type_int64(v, NULL, &pt->value.s64, errp);
 138         break;
 139     case PTYPE_EOL:
 140         g_assert_not_reached();
 141     }
 142 }
 143
 144 static void visit_primitive_list(Visitor *v, void **native, Error **errp)
 145 {
 146     PrimitiveList *pl = *native;
 147     switch (pl->type) {
 148     case PTYPE_STRING:
 149         visit_type_strList(v, NULL, &pl->value.strings, errp);
 150         break;
 151     case PTYPE_BOOLEAN:
 152         visit_type_boolList(v, NULL, &pl->value.booleans, errp);
 153         break;
 154     case PTYPE_NUMBER:
 155         visit_type_numberList(v, NULL, &pl->value.numbers, errp);
 156         break;
 157     case PTYPE_INTEGER:
 158         visit_type_intList(v, NULL, &pl->value.integers, errp);
 159         break;
 160     case PTYPE_S8:
 161         visit_type_int8List(v, NULL, &pl->value.s8_integers, errp);
 162         break;
 163     case PTYPE_S16:
 164         visit_type_int16List(v, NULL, &pl->value.s16_integers, errp);
 165         break;
 166     case PTYPE_S32:
 167         visit_type_int32List(v, NULL, &pl->value.s32_integers, errp);
 168         break;
 169     case PTYPE_S64:
 170         visit_type_int64List(v, NULL, &pl->value.s64_integers, errp);
 171         break;
 172     case PTYPE_U8:
 173         visit_type_uint8List(v, NULL, &pl->value.u8_integers, errp);
 174         break;
 175     case PTYPE_U16:
 176         visit_type_uint16List(v, NULL, &pl->value.u16_integers, errp);
 177         break;
 178     case PTYPE_U32:
 179         visit_type_uint32List(v, NULL, &pl->value.u32_integers, errp);
 180         break;
 181     case PTYPE_U64:
 182         visit_type_uint64List(v, NULL, &pl->value.u64_integers, errp);
 183         break;
 184     default:
 185         g_assert_not_reached();
 186     }
 187 }
 188
 189
 190 static TestStruct *struct_create(void)
 191 {
 192     TestStruct *ts = g_malloc0(sizeof(*ts));
 193     ts->integer = -42;
 194     ts->boolean = true;
 195     ts->string = strdup("test string");
 196     return ts;
 197 }
 198
 199 static void struct_compare(TestStruct *ts1, TestStruct *ts2)
 200 {
 201     g_assert(ts1);
 202     g_assert(ts2);
 203     g_assert_cmpint(ts1->integer, ==, ts2->integer);
 204     g_assert(ts1->boolean == ts2->boolean);
 205     g_assert_cmpstr(ts1->string, ==, ts2->string);
 206 }
 207
 208 static void struct_cleanup(TestStruct *ts)
 209 {
 210     g_free(ts->string);
 211     g_free(ts);
 212 }
 213
 214 static void visit_struct(Visitor *v, void **native, Error **errp)
 215 {
 216     visit_type_TestStruct(v, NULL, (TestStruct **)native, errp);
 217 }
 218
 219 static UserDefTwo *nested_struct_create(void)
 220 {
 221     UserDefTwo *udnp = g_malloc0(sizeof(*udnp));
 222     udnp->string0 = strdup("test_string0");
 223     udnp->dict1 = g_malloc0(sizeof(*udnp->dict1));
 224     udnp->dict1->string1 = strdup("test_string1");
 225     udnp->dict1->dict2 = g_malloc0(sizeof(*udnp->dict1->dict2));
 226     udnp->dict1->dict2->userdef = g_new0(UserDefOne, 1);
 227     udnp->dict1->dict2->userdef->integer = 42;
 228     udnp->dict1->dict2->userdef->string = strdup("test_string");
 229     udnp->dict1->dict2->string = strdup("test_string2");
 230     udnp->dict1->dict3 = g_malloc0(sizeof(*udnp->dict1->dict3));
 231     udnp->dict1->has_dict3 = true;
 232     udnp->dict1->dict3->userdef = g_new0(UserDefOne, 1);
 233     udnp->dict1->dict3->userdef->integer = 43;
 234     udnp->dict1->dict3->userdef->string = strdup("test_string");
 235     udnp->dict1->dict3->string = strdup("test_string3");
 236     return udnp;
 237 }
 238
 239 static void nested_struct_compare(UserDefTwo *udnp1, UserDefTwo *udnp2)
 240 {
 241     g_assert(udnp1);
 242     g_assert(udnp2);
 243     g_assert_cmpstr(udnp1->string0, ==, udnp2->string0);
 244     g_assert_cmpstr(udnp1->dict1->string1, ==, udnp2->dict1->string1);
 245     g_assert_cmpint(udnp1->dict1->dict2->userdef->integer, ==,
 246                     udnp2->dict1->dict2->userdef->integer);
 247     g_assert_cmpstr(udnp1->dict1->dict2->userdef->string, ==,
 248                     udnp2->dict1->dict2->userdef->string);
 249     g_assert_cmpstr(udnp1->dict1->dict2->string, ==,
 250                     udnp2->dict1->dict2->string);
 251     g_assert(udnp1->dict1->has_dict3 == udnp2->dict1->has_dict3);
 252     g_assert_cmpint(udnp1->dict1->dict3->userdef->integer, ==,
 253                     udnp2->dict1->dict3->userdef->integer);
 254     g_assert_cmpstr(udnp1->dict1->dict3->userdef->string, ==,
 255                     udnp2->dict1->dict3->userdef->string);
 256     g_assert_cmpstr(udnp1->dict1->dict3->string, ==,
 257                     udnp2->dict1->dict3->string);
 258 }
 259
 260 static void nested_struct_cleanup(UserDefTwo *udnp)
 261 {
 262     qapi_free_UserDefTwo(udnp);
 263 }
 264
 265 static void visit_nested_struct(Visitor *v, void **native, Error **errp)
 266 {
 267     visit_type_UserDefTwo(v, NULL, (UserDefTwo **)native, errp);
 268 }
 269
 270 static void visit_nested_struct_list(Visitor *v, void **native, Error **errp)
 271 {
 272     visit_type_UserDefTwoList(v, NULL, (UserDefTwoList **)native, errp);
 273 }
 274
 275 /* test cases */
 276
 277 typedef enum VisitorCapabilities {
 278     VCAP_PRIMITIVES = 1,
 279     VCAP_STRUCTURES = 2,
 280     VCAP_LISTS = 4,
 281     VCAP_PRIMITIVE_LISTS = 8,
 282 } VisitorCapabilities;
 283
 284 typedef struct SerializeOps {
 285     void (*serialize)(void *native_in, void **datap,
 286                       VisitorFunc visit, Error **errp);
 287     void (*deserialize)(void **native_out, void *datap,
 288                             VisitorFunc visit, Error **errp);
 289     void (*cleanup)(void *datap);
 290     const char *type;
 291     VisitorCapabilities caps;
 292 } SerializeOps;
 293
 294 typedef struct TestArgs {
 295     const SerializeOps *ops;
 296     void *test_data;
 297 } TestArgs;
 298
 299 static void test_primitives(gconstpointer opaque)
 300 {
 301     TestArgs *args = (TestArgs *) opaque;
 302     const SerializeOps *ops = args->ops;
 303     PrimitiveType *pt = args->test_data;
 304     PrimitiveType *pt_copy = g_malloc0(sizeof(*pt_copy));
 305     void *serialize_data;
 306
 307     pt_copy->type = pt->type;
 308     ops->serialize(pt, &serialize_data, visit_primitive_type, &error_abort);
 309     ops->deserialize((void **)&pt_copy, serialize_data, visit_primitive_type,
 310                      &error_abort);
 311
 312     g_assert(pt_copy != NULL);
 313     if (pt->type == PTYPE_STRING) {
 314         g_assert_cmpstr(pt->value.string, ==, pt_copy->value.string);
 315         g_free((char *)pt_copy->value.string);
 316     } else if (pt->type == PTYPE_NUMBER) {
 317         GString *double_expected = g_string_new("");
 318         GString *double_actual = g_string_new("");
 319         /* we serialize with %f for our reference visitors, so rather than fuzzy
 320          * floating math to test "equality", just compare the formatted values
 321          */
 322         g_string_printf(double_expected, "%.6f", pt->value.number);
 323         g_string_printf(double_actual, "%.6f", pt_copy->value.number);
 324         g_assert_cmpstr(double_actual->str, ==, double_expected->str);
 325
 326         g_string_free(double_expected, true);
 327         g_string_free(double_actual, true);
 328     } else if (pt->type == PTYPE_BOOLEAN) {
 329         g_assert_cmpint(!!pt->value.max, ==, !!pt->value.max);
 330     } else {
 331         g_assert_cmpint(pt->value.max, ==, pt_copy->value.max);
 332     }
 333
 334     ops->cleanup(serialize_data);
 335     g_free(args);
 336     g_free(pt_copy);
 337 }
 338
 339 static void test_primitive_lists(gconstpointer opaque)
 340 {
 341     TestArgs *args = (TestArgs *) opaque;
 342     const SerializeOps *ops = args->ops;
 343     PrimitiveType *pt = args->test_data;
 344     PrimitiveList pl = { .value = { NULL } };
 345     PrimitiveList pl_copy = { .value = { NULL } };
 346     PrimitiveList *pl_copy_ptr = &pl_copy;
 347     void *serialize_data;
 348     void *cur_head = NULL;
 349     int i;
 350
 351     pl.type = pl_copy.type = pt->type;
 352
 353     /* build up our list of primitive types */
 354     for (i = 0; i < 32; i++) {
 355         switch (pl.type) {
 356         case PTYPE_STRING: {
 357             strList *tmp = g_new0(strList, 1);
 358             tmp->value = g_strdup(pt->value.string);
 359             if (pl.value.strings == NULL) {
 360                 pl.value.strings = tmp;
 361             } else {
 362                 tmp->next = pl.value.strings;
 363                 pl.value.strings = tmp;
 364             }
 365             break;
 366         }
 367         case PTYPE_INTEGER: {
 368             intList *tmp = g_new0(intList, 1);
 369             tmp->value = pt->value.integer;
 370             if (pl.value.integers == NULL) {
 371                 pl.value.integers = tmp;
 372             } else {
 373                 tmp->next = pl.value.integers;
 374                 pl.value.integers = tmp;
 375             }
 376             break;
 377         }
 378         case PTYPE_S8: {
 379             int8List *tmp = g_new0(int8List, 1);
 380             tmp->value = pt->value.s8;
 381             if (pl.value.s8_integers == NULL) {
 382                 pl.value.s8_integers = tmp;
 383             } else {
 384                 tmp->next = pl.value.s8_integers;
 385                 pl.value.s8_integers = tmp;
 386             }
 387             break;
 388         }
 389         case PTYPE_S16: {
 390             int16List *tmp = g_new0(int16List, 1);
 391             tmp->value = pt->value.s16;
 392             if (pl.value.s16_integers == NULL) {
 393                 pl.value.s16_integers = tmp;
 394             } else {
 395                 tmp->next = pl.value.s16_integers;
 396                 pl.value.s16_integers = tmp;
 397             }
 398             break;
 399         }
 400         case PTYPE_S32: {
 401             int32List *tmp = g_new0(int32List, 1);
 402             tmp->value = pt->value.s32;
 403             if (pl.value.s32_integers == NULL) {
 404                 pl.value.s32_integers = tmp;
 405             } else {
 406                 tmp->next = pl.value.s32_integers;
 407                 pl.value.s32_integers = tmp;
 408             }
 409             break;
 410         }
 411         case PTYPE_S64: {
 412             int64List *tmp = g_new0(int64List, 1);
 413             tmp->value = pt->value.s64;
 414             if (pl.value.s64_integers == NULL) {
 415                 pl.value.s64_integers = tmp;
 416             } else {
 417                 tmp->next = pl.value.s64_integers;
 418                 pl.value.s64_integers = tmp;
 419             }
 420             break;
 421         }
 422         case PTYPE_U8: {
 423             uint8List *tmp = g_new0(uint8List, 1);
 424             tmp->value = pt->value.u8;
 425             if (pl.value.u8_integers == NULL) {
 426                 pl.value.u8_integers = tmp;
 427             } else {
 428                 tmp->next = pl.value.u8_integers;
 429                 pl.value.u8_integers = tmp;
 430             }
 431             break;
 432         }
 433         case PTYPE_U16: {
 434             uint16List *tmp = g_new0(uint16List, 1);
 435             tmp->value = pt->value.u16;
 436             if (pl.value.u16_integers == NULL) {
 437                 pl.value.u16_integers = tmp;
 438             } else {
 439                 tmp->next = pl.value.u16_integers;
 440                 pl.value.u16_integers = tmp;
 441             }
 442             break;
 443         }
 444         case PTYPE_U32: {
 445             uint32List *tmp = g_new0(uint32List, 1);
 446             tmp->value = pt->value.u32;
 447             if (pl.value.u32_integers == NULL) {
 448                 pl.value.u32_integers = tmp;
 449             } else {
 450                 tmp->next = pl.value.u32_integers;
 451                 pl.value.u32_integers = tmp;
 452             }
 453             break;
 454         }
 455         case PTYPE_U64: {
 456             uint64List *tmp = g_new0(uint64List, 1);
 457             tmp->value = pt->value.u64;
 458             if (pl.value.u64_integers == NULL) {
 459                 pl.value.u64_integers = tmp;
 460             } else {
 461                 tmp->next = pl.value.u64_integers;
 462                 pl.value.u64_integers = tmp;
 463             }
 464             break;
 465         }
 466         case PTYPE_NUMBER: {
 467             numberList *tmp = g_new0(numberList, 1);
 468             tmp->value = pt->value.number;
 469             if (pl.value.numbers == NULL) {
 470                 pl.value.numbers = tmp;
 471             } else {
 472                 tmp->next = pl.value.numbers;
 473                 pl.value.numbers = tmp;
 474             }
 475             break;
 476         }
 477         case PTYPE_BOOLEAN: {
 478             boolList *tmp = g_new0(boolList, 1);
 479             tmp->value = pt->value.boolean;
 480             if (pl.value.booleans == NULL) {
 481                 pl.value.booleans = tmp;
 482             } else {
 483                 tmp->next = pl.value.booleans;
 484                 pl.value.booleans = tmp;
 485             }
 486             break;
 487         }
 488         default:
 489             g_assert_not_reached();
 490         }
 491     }
 492
 493     ops->serialize((void **)&pl, &serialize_data, visit_primitive_list,
 494                    &error_abort);
 495     ops->deserialize((void **)&pl_copy_ptr, serialize_data,
 496                      visit_primitive_list, &error_abort);
 497
 498     i = 0;
 499
 500     /* compare our deserialized list of primitives to the original */
 501     do {
 502         switch (pl_copy.type) {
 503         case PTYPE_STRING: {
 504             strList *ptr;
 505             if (cur_head) {
 506                 ptr = cur_head;
 507                 cur_head = ptr->next;
 508             } else {
 509                 cur_head = ptr = pl_copy.value.strings;
 510             }
 511             g_assert_cmpstr(pt->value.string, ==, ptr->value);
 512             break;
 513         }
 514         case PTYPE_INTEGER: {
 515             intList *ptr;
 516             if (cur_head) {
 517                 ptr = cur_head;
 518                 cur_head = ptr->next;
 519             } else {
 520                 cur_head = ptr = pl_copy.value.integers;
 521             }
 522             g_assert_cmpint(pt->value.integer, ==, ptr->value);
 523             break;
 524         }
 525         case PTYPE_S8: {
 526             int8List *ptr;
 527             if (cur_head) {
 528                 ptr = cur_head;
 529                 cur_head = ptr->next;
 530             } else {
 531                 cur_head = ptr = pl_copy.value.s8_integers;
 532             }
 533             g_assert_cmpint(pt->value.s8, ==, ptr->value);
 534             break;
 535         }
 536         case PTYPE_S16: {
 537             int16List *ptr;
 538             if (cur_head) {
 539                 ptr = cur_head;
 540                 cur_head = ptr->next;
 541             } else {
 542                 cur_head = ptr = pl_copy.value.s16_integers;
 543             }
 544             g_assert_cmpint(pt->value.s16, ==, ptr->value);
 545             break;
 546         }
 547         case PTYPE_S32: {
 548             int32List *ptr;
 549             if (cur_head) {
 550                 ptr = cur_head;
 551                 cur_head = ptr->next;
 552             } else {
 553                 cur_head = ptr = pl_copy.value.s32_integers;
 554             }
 555             g_assert_cmpint(pt->value.s32, ==, ptr->value);
 556             break;
 557         }
 558         case PTYPE_S64: {
 559             int64List *ptr;
 560             if (cur_head) {
 561                 ptr = cur_head;
 562                 cur_head = ptr->next;
 563             } else {
 564                 cur_head = ptr = pl_copy.value.s64_integers;
 565             }
 566             g_assert_cmpint(pt->value.s64, ==, ptr->value);
 567             break;
 568         }
 569         case PTYPE_U8: {
 570             uint8List *ptr;
 571             if (cur_head) {
 572                 ptr = cur_head;
 573                 cur_head = ptr->next;
 574             } else {
 575                 cur_head = ptr = pl_copy.value.u8_integers;
 576             }
 577             g_assert_cmpint(pt->value.u8, ==, ptr->value);
 578             break;
 579         }
 580         case PTYPE_U16: {
 581             uint16List *ptr;
 582             if (cur_head) {
 583                 ptr = cur_head;
 584                 cur_head = ptr->next;
 585             } else {
 586                 cur_head = ptr = pl_copy.value.u16_integers;
 587             }
 588             g_assert_cmpint(pt->value.u16, ==, ptr->value);
 589             break;
 590         }
 591         case PTYPE_U32: {
 592             uint32List *ptr;
 593             if (cur_head) {
 594                 ptr = cur_head;
 595                 cur_head = ptr->next;
 596             } else {
 597                 cur_head = ptr = pl_copy.value.u32_integers;
 598             }
 599             g_assert_cmpint(pt->value.u32, ==, ptr->value);
 600             break;
 601         }
 602         case PTYPE_U64: {
 603             uint64List *ptr;
 604             if (cur_head) {
 605                 ptr = cur_head;
 606                 cur_head = ptr->next;
 607             } else {
 608                 cur_head = ptr = pl_copy.value.u64_integers;
 609             }
 610             g_assert_cmpint(pt->value.u64, ==, ptr->value);
 611             break;
 612         }
 613         case PTYPE_NUMBER: {
 614             numberList *ptr;
 615             GString *double_expected = g_string_new("");
 616             GString *double_actual = g_string_new("");
 617             if (cur_head) {
 618                 ptr = cur_head;
 619                 cur_head = ptr->next;
 620             } else {
 621                 cur_head = ptr = pl_copy.value.numbers;
 622             }
 623             /* we serialize with %f for our reference visitors, so rather than
 624              * fuzzy floating math to test "equality", just compare the
 625              * formatted values
 626              */
 627             g_string_printf(double_expected, "%.6f", pt->value.number);
 628             g_string_printf(double_actual, "%.6f", ptr->value);
 629             g_assert_cmpstr(double_actual->str, ==, double_expected->str);
 630             g_string_free(double_expected, true);
 631             g_string_free(double_actual, true);
 632             break;
 633         }
 634         case PTYPE_BOOLEAN: {
 635             boolList *ptr;
 636             if (cur_head) {
 637                 ptr = cur_head;
 638                 cur_head = ptr->next;
 639             } else {
 640                 cur_head = ptr = pl_copy.value.booleans;
 641             }
 642             g_assert_cmpint(!!pt->value.boolean, ==, !!ptr->value);
 643             break;
 644         }
 645         default:
 646             g_assert_not_reached();
 647         }
 648         i++;
 649     } while (cur_head);
 650
 651     g_assert_cmpint(i, ==, 33);
 652
 653     ops->cleanup(serialize_data);
 654     dealloc_helper(&pl, visit_primitive_list, &error_abort);
 655     dealloc_helper(&pl_copy, visit_primitive_list, &error_abort);
 656     g_free(args);
 657 }
 658
 659 static void test_struct(gconstpointer opaque)
 660 {
 661     TestArgs *args = (TestArgs *) opaque;
 662     const SerializeOps *ops = args->ops;
 663     TestStruct *ts = struct_create();
 664     TestStruct *ts_copy = NULL;
 665     void *serialize_data;
 666
 667     ops->serialize(ts, &serialize_data, visit_struct, &error_abort);
 668     ops->deserialize((void **)&ts_copy, serialize_data, visit_struct,
 669                      &error_abort);
 670
 671     struct_compare(ts, ts_copy);
 672
 673     struct_cleanup(ts);
 674     struct_cleanup(ts_copy);
 675
 676     ops->cleanup(serialize_data);
 677     g_free(args);
 678 }
 679
 680 static void test_nested_struct(gconstpointer opaque)
 681 {
 682     TestArgs *args = (TestArgs *) opaque;
 683     const SerializeOps *ops = args->ops;
 684     UserDefTwo *udnp = nested_struct_create();
 685     UserDefTwo *udnp_copy = NULL;
 686     void *serialize_data;
 687
 688     ops->serialize(udnp, &serialize_data, visit_nested_struct, &error_abort);
 689     ops->deserialize((void **)&udnp_copy, serialize_data, visit_nested_struct,
 690                      &error_abort);
 691
 692     nested_struct_compare(udnp, udnp_copy);
 693
 694     nested_struct_cleanup(udnp);
 695     nested_struct_cleanup(udnp_copy);
 696
 697     ops->cleanup(serialize_data);
 698     g_free(args);
 699 }
 700
 701 static void test_nested_struct_list(gconstpointer opaque)
 702 {
 703     TestArgs *args = (TestArgs *) opaque;
 704     const SerializeOps *ops = args->ops;
 705     UserDefTwoList *listp = NULL, *tmp, *tmp_copy, *listp_copy = NULL;
 706     void *serialize_data;
 707     int i = 0;
 708
 709     for (i = 0; i < 8; i++) {
 710         tmp = g_new0(UserDefTwoList, 1);
 711         tmp->value = nested_struct_create();
 712         tmp->next = listp;
 713         listp = tmp;
 714     }
 715
 716     ops->serialize(listp, &serialize_data, visit_nested_struct_list,
 717                    &error_abort);
 718     ops->deserialize((void **)&listp_copy, serialize_data,
 719                      visit_nested_struct_list, &error_abort);
 720
 721     tmp = listp;
 722     tmp_copy = listp_copy;
 723     while (listp_copy) {
 724         g_assert(listp);
 725         nested_struct_compare(listp->value, listp_copy->value);
 726         listp = listp->next;
 727         listp_copy = listp_copy->next;
 728     }
 729
 730     qapi_free_UserDefTwoList(tmp);
 731     qapi_free_UserDefTwoList(tmp_copy);
 732
 733     ops->cleanup(serialize_data);
 734     g_free(args);
 735 }
 736
 737 static PrimitiveType pt_values[] = {
 738     /* string tests */
 739     {
 740         .description = "string_empty",
 741         .type = PTYPE_STRING,
 742         .value.string = "",
 743     },
 744     {
 745         .description = "string_whitespace",
 746         .type = PTYPE_STRING,
 747         .value.string = "a b  c\td",
 748     },
 749     {
 750         .description = "string_newlines",
 751         .type = PTYPE_STRING,
 752         .value.string = "a\nb\n",
 753     },
 754     {
 755         .description = "string_commas",
 756         .type = PTYPE_STRING,
 757         .value.string = "a,b, c,d",
 758     },
 759     {
 760         .description = "string_single_quoted",
 761         .type = PTYPE_STRING,
 762         .value.string = "'a b',cd",
 763     },
 764     {
 765         .description = "string_double_quoted",
 766         .type = PTYPE_STRING,
 767         .value.string = "\"a b\",cd",
 768     },
 769     /* boolean tests */
 770     {
 771         .description = "boolean_true1",
 772         .type = PTYPE_BOOLEAN,
 773         .value.boolean = true,
 774     },
 775     {
 776         .description = "boolean_true2",
 777         .type = PTYPE_BOOLEAN,
 778         .value.boolean = 8,
 779     },
 780     {
 781         .description = "boolean_true3",
 782         .type = PTYPE_BOOLEAN,
 783         .value.boolean = -1,
 784     },
 785     {
 786         .description = "boolean_false1",
 787         .type = PTYPE_BOOLEAN,
 788         .value.boolean = false,
 789     },
 790     {
 791         .description = "boolean_false2",
 792         .type = PTYPE_BOOLEAN,
 793         .value.boolean = 0,
 794     },
 795     /* number tests (double) */
 796     /* note: we format these to %.6f before comparing, since that's how
 797      * we serialize them and it doesn't make sense to check precision
 798      * beyond that.
 799      */
 800     {
 801         .description = "number_sanity1",
 802         .type = PTYPE_NUMBER,
 803         .value.number = -1,
 804     },
 805     {
 806         .description = "number_sanity2",
 807         .type = PTYPE_NUMBER,
 808         .value.number = 3.14159265,
 809     },
 810     {
 811         .description = "number_min",
 812         .type = PTYPE_NUMBER,
 813         .value.number = DBL_MIN,
 814     },
 815     {
 816         .description = "number_max",
 817         .type = PTYPE_NUMBER,
 818         .value.number = DBL_MAX,
 819     },
 820     /* integer tests (int64) */
 821     {
 822         .description = "integer_sanity1",
 823         .type = PTYPE_INTEGER,
 824         .value.integer = -1,
 825     },
 826     {
 827         .description = "integer_sanity2",
 828         .type = PTYPE_INTEGER,
 829         .value.integer = INT64_MAX / 2 + 1,
 830     },
 831     {
 832         .description = "integer_min",
 833         .type = PTYPE_INTEGER,
 834         .value.integer = INT64_MIN,
 835     },
 836     {
 837         .description = "integer_max",
 838         .type = PTYPE_INTEGER,
 839         .value.integer = INT64_MAX,
 840     },
 841     /* uint8 tests */
 842     {
 843         .description = "uint8_sanity1",
 844         .type = PTYPE_U8,
 845         .value.u8 = 1,
 846     },
 847     {
 848         .description = "uint8_sanity2",
 849         .type = PTYPE_U8,
 850         .value.u8 = UINT8_MAX / 2 + 1,
 851     },
 852     {
 853         .description = "uint8_min",
 854         .type = PTYPE_U8,
 855         .value.u8 = 0,
 856     },
 857     {
 858         .description = "uint8_max",
 859         .type = PTYPE_U8,
 860         .value.u8 = UINT8_MAX,
 861     },
 862     /* uint16 tests */
 863     {
 864         .description = "uint16_sanity1",
 865         .type = PTYPE_U16,
 866         .value.u16 = 1,
 867     },
 868     {
 869         .description = "uint16_sanity2",
 870         .type = PTYPE_U16,
 871         .value.u16 = UINT16_MAX / 2 + 1,
 872     },
 873     {
 874         .description = "uint16_min",
 875         .type = PTYPE_U16,
 876         .value.u16 = 0,
 877     },
 878     {
 879         .description = "uint16_max",
 880         .type = PTYPE_U16,
 881         .value.u16 = UINT16_MAX,
 882     },
 883     /* uint32 tests */
 884     {
 885         .description = "uint32_sanity1",
 886         .type = PTYPE_U32,
 887         .value.u32 = 1,
 888     },
 889     {
 890         .description = "uint32_sanity2",
 891         .type = PTYPE_U32,
 892         .value.u32 = UINT32_MAX / 2 + 1,
 893     },
 894     {
 895         .description = "uint32_min",
 896         .type = PTYPE_U32,
 897         .value.u32 = 0,
 898     },
 899     {
 900         .description = "uint32_max",
 901         .type = PTYPE_U32,
 902         .value.u32 = UINT32_MAX,
 903     },
 904     /* uint64 tests */
 905     {
 906         .description = "uint64_sanity1",
 907         .type = PTYPE_U64,
 908         .value.u64 = 1,
 909     },
 910     {
 911         .description = "uint64_sanity2",
 912         .type = PTYPE_U64,
 913         .value.u64 = UINT64_MAX / 2 + 1,
 914     },
 915     {
 916         .description = "uint64_min",
 917         .type = PTYPE_U64,
 918         .value.u64 = 0,
 919     },
 920     {
 921         .description = "uint64_max",
 922         .type = PTYPE_U64,
 923         .value.u64 = UINT64_MAX,
 924     },
 925     /* int8 tests */
 926     {
 927         .description = "int8_sanity1",
 928         .type = PTYPE_S8,
 929         .value.s8 = -1,
 930     },
 931     {
 932         .description = "int8_sanity2",
 933         .type = PTYPE_S8,
 934         .value.s8 = INT8_MAX / 2 + 1,
 935     },
 936     {
 937         .description = "int8_min",
 938         .type = PTYPE_S8,
 939         .value.s8 = INT8_MIN,
 940     },
 941     {
 942         .description = "int8_max",
 943         .type = PTYPE_S8,
 944         .value.s8 = INT8_MAX,
 945     },
 946     /* int16 tests */
 947     {
 948         .description = "int16_sanity1",
 949         .type = PTYPE_S16,
 950         .value.s16 = -1,
 951     },
 952     {
 953         .description = "int16_sanity2",
 954         .type = PTYPE_S16,
 955         .value.s16 = INT16_MAX / 2 + 1,
 956     },
 957     {
 958         .description = "int16_min",
 959         .type = PTYPE_S16,
 960         .value.s16 = INT16_MIN,
 961     },
 962     {
 963         .description = "int16_max",
 964         .type = PTYPE_S16,
 965         .value.s16 = INT16_MAX,
 966     },
 967     /* int32 tests */
 968     {
 969         .description = "int32_sanity1",
 970         .type = PTYPE_S32,
 971         .value.s32 = -1,
 972     },
 973     {
 974         .description = "int32_sanity2",
 975         .type = PTYPE_S32,
 976         .value.s32 = INT32_MAX / 2 + 1,
 977     },
 978     {
 979         .description = "int32_min",
 980         .type = PTYPE_S32,
 981         .value.s32 = INT32_MIN,
 982     },
 983     {
 984         .description = "int32_max",
 985         .type = PTYPE_S32,
 986         .value.s32 = INT32_MAX,
 987     },
 988     /* int64 tests */
 989     {
 990         .description = "int64_sanity1",
 991         .type = PTYPE_S64,
 992         .value.s64 = -1,
 993     },
 994     {
 995         .description = "int64_sanity2",
 996         .type = PTYPE_S64,
 997         .value.s64 = INT64_MAX / 2 + 1,
 998     },
 999     {
1000         .description = "int64_min",
1001         .type = PTYPE_S64,
1002         .value.s64 = INT64_MIN,
1003     },
1004     {
1005         .description = "int64_max",
1006         .type = PTYPE_S64,
1007         .value.s64 = INT64_MAX,
1008     },
1009     { .type = PTYPE_EOL }
1010 };
1011
1012 /* visitor-specific op implementations */
1013
1014 typedef struct QmpSerializeData {
1015     QmpOutputVisitor *qov;
1016     QmpInputVisitor *qiv;
1017 } QmpSerializeData;
1018
1019 static void qmp_serialize(void *native_in, void **datap,
1020                           VisitorFunc visit, Error **errp)
1021 {
1022     QmpSerializeData *d = g_malloc0(sizeof(*d));
1023
1024     d->qov = qmp_output_visitor_new();
1025     visit(qmp_output_get_visitor(d->qov), &native_in, errp);
1026     *datap = d;
1027 }
1028
1029 static void qmp_deserialize(void **native_out, void *datap,
1030                             VisitorFunc visit, Error **errp)
1031 {
1032     QmpSerializeData *d = datap;
1033     QString *output_json;
1034     QObject *obj_orig, *obj;
1035
1036     obj_orig = qmp_output_get_qobject(d->qov);
1037     output_json = qobject_to_json(obj_orig);
1038     obj = qobject_from_json(qstring_get_str(output_json));
1039
1040     QDECREF(output_json);
1041     d->qiv = qmp_input_visitor_new(obj, true);
1042     qobject_decref(obj_orig);
1043     qobject_decref(obj);
1044     visit(qmp_input_get_visitor(d->qiv), native_out, errp);
1045 }
1046
1047 static void qmp_cleanup(void *datap)
1048 {
1049     QmpSerializeData *d = datap;
1050     qmp_output_visitor_cleanup(d->qov);
1051     qmp_input_visitor_cleanup(d->qiv);
1052
1053     g_free(d);
1054 }
1055
1056 typedef struct StringSerializeData {
1057     char *string;
1058     StringOutputVisitor *sov;
1059     StringInputVisitor *siv;
1060 } StringSerializeData;
1061
1062 static void string_serialize(void *native_in, void **datap,
1063                              VisitorFunc visit, Error **errp)
1064 {
1065     StringSerializeData *d = g_malloc0(sizeof(*d));
1066
1067     d->sov = string_output_visitor_new(false);
1068     visit(string_output_get_visitor(d->sov), &native_in, errp);
1069     *datap = d;
1070 }
1071
1072 static void string_deserialize(void **native_out, void *datap,
1073                                VisitorFunc visit, Error **errp)
1074 {
1075     StringSerializeData *d = datap;
1076
1077     d->string = string_output_get_string(d->sov);
1078     d->siv = string_input_visitor_new(d->string);
1079     visit(string_input_get_visitor(d->siv), native_out, errp);
1080 }
1081
1082 static void string_cleanup(void *datap)
1083 {
1084     StringSerializeData *d = datap;
1085
1086     string_output_visitor_cleanup(d->sov);
1087     string_input_visitor_cleanup(d->siv);
1088     g_free(d->string);
1089     g_free(d);
1090 }
1091
1092 /* visitor registration, test harness */
1093
1094 /* note: to function interchangeably as a serialization mechanism your
1095  * visitor test implementation should pass the test cases for all visitor
1096  * capabilities: primitives, structures, and lists
1097  */
1098 static const SerializeOps visitors[] = {
1099     {
1100         .type = "QMP",
1101         .serialize = qmp_serialize,
1102         .deserialize = qmp_deserialize,
1103         .cleanup = qmp_cleanup,
1104         .caps = VCAP_PRIMITIVES | VCAP_STRUCTURES | VCAP_LISTS |
1105                 VCAP_PRIMITIVE_LISTS
1106     },
1107     {
1108         .type = "String",
1109         .serialize = string_serialize,
1110         .deserialize = string_deserialize,
1111         .cleanup = string_cleanup,
1112         .caps = VCAP_PRIMITIVES
1113     },
1114     { NULL }
1115 };
1116
1117 static void add_visitor_type(const SerializeOps *ops)
1118 {
1119     char testname_prefix[128];
1120     char testname[128];
1121     TestArgs *args;
1122     int i = 0;
1123
1124     sprintf(testname_prefix, "/visitor/serialization/%s", ops->type);
1125
1126     if (ops->caps & VCAP_PRIMITIVES) {
1127         while (pt_values[i].type != PTYPE_EOL) {
1128             sprintf(testname, "%s/primitives/%s", testname_prefix,
1129                     pt_values[i].description);
1130             args = g_malloc0(sizeof(*args));
1131             args->ops = ops;
1132             args->test_data = &pt_values[i];
1133             g_test_add_data_func(testname, args, test_primitives);
1134             i++;
1135         }
1136     }
1137
1138     if (ops->caps & VCAP_STRUCTURES) {
1139         sprintf(testname, "%s/struct", testname_prefix);
1140         args = g_malloc0(sizeof(*args));
1141         args->ops = ops;
1142         args->test_data = NULL;
1143         g_test_add_data_func(testname, args, test_struct);
1144
1145         sprintf(testname, "%s/nested_struct", testname_prefix);
1146         args = g_malloc0(sizeof(*args));
1147         args->ops = ops;
1148         args->test_data = NULL;
1149         g_test_add_data_func(testname, args, test_nested_struct);
1150     }
1151
1152     if (ops->caps & VCAP_LISTS) {
1153         sprintf(testname, "%s/nested_struct_list", testname_prefix);
1154         args = g_malloc0(sizeof(*args));
1155         args->ops = ops;
1156         args->test_data = NULL;
1157         g_test_add_data_func(testname, args, test_nested_struct_list);
1158     }
1159
1160     if (ops->caps & VCAP_PRIMITIVE_LISTS) {
1161         i = 0;
1162         while (pt_values[i].type != PTYPE_EOL) {
1163             sprintf(testname, "%s/primitive_list/%s", testname_prefix,
1164                     pt_values[i].description);
1165             args = g_malloc0(sizeof(*args));
1166             args->ops = ops;
1167             args->test_data = &pt_values[i];
1168             g_test_add_data_func(testname, args, test_primitive_lists);
1169             i++;
1170         }
1171     }
1172 }
1173
1174 int main(int argc, char **argv)
1175 {
1176     int i = 0;
1177
1178     g_test_init(&argc, &argv, NULL);
1179
1180     while (visitors[i].type != NULL) {
1181         add_visitor_type(&visitors[i]);
1182         i++;
1183     }
1184
1185     g_test_run();
1186
1187     return 0;
1188 }