test-visitor.c

   1 #include <glib.h>
   2 #include "qapi/qmp-output-visitor.h"
   3 #include "qapi/qmp-input-visitor.h"
   4 #include "test-qapi-types.h"
   5 #include "test-qapi-visit.h"
   6 #include "qemu-objects.h"
   7
   8 typedef struct TestStruct
   9 {
  10     int64_t x;
  11     int64_t y;
  12 } TestStruct;
  13
  14 typedef struct TestStructList
  15 {
  16     TestStruct *value;
  17     struct TestStructList *next;
  18 } TestStructList;
  19
  20 static void visit_type_TestStruct(Visitor *v, TestStruct **obj, const char *name, Error **errp)
  21 {
  22     visit_start_struct(v, (void **)obj, "TestStruct", name, sizeof(TestStruct), errp);
  23     visit_type_int(v, &(*obj)->x, "x", errp);
  24     visit_type_int(v, &(*obj)->y, "y", errp);
  25     visit_end_struct(v, errp);
  26 }
  27
  28 static void visit_type_TestStructList(Visitor *m, TestStructList ** obj, const char *name, Error **errp)
  29 {
  30     GenericList *i, **head = (GenericList **)obj;
  31
  32     visit_start_list(m, name, errp);
  33
  34     for (*head = i = visit_next_list(m, head, errp); i; i = visit_next_list(m, &i, errp)) {
  35         TestStructList *native_i = (TestStructList *)i;
  36         visit_type_TestStruct(m, &native_i->value, NULL, errp);
  37     }
  38
  39     visit_end_list(m, errp);
  40 }
  41
  42 /* test core visitor methods */
  43 static void test_visitor_core(void)
  44 {
  45     QmpOutputVisitor *mo;
  46     QmpInputVisitor *mi;
  47     Visitor *v;
  48     TestStruct ts = { 42, 82 };
  49     TestStruct *pts = &ts;
  50     TestStructList *lts = NULL;
  51     Error *err = NULL;
  52     QObject *obj;
  53     QList *qlist;
  54     QDict *qdict;
  55     QString *str;
  56     int64_t value = 0;
  57
  58     mo = qmp_output_visitor_new();
  59     v = qmp_output_get_visitor(mo);
  60
  61     visit_type_TestStruct(v, &pts, NULL, &err);
  62
  63     obj = qmp_output_get_qobject(mo);
  64
  65     str = qobject_to_json(obj);
  66
  67     printf("%s\n", qstring_get_str(str));
  68
  69     QDECREF(str);
  70
  71     obj = QOBJECT(qint_from_int(0x42));
  72
  73     mi = qmp_input_visitor_new(obj);
  74     v = qmp_input_get_visitor(mi);
  75
  76     visit_type_int(v, &value, NULL, &err);
  77     if (err) {
  78         g_error("%s", error_get_pretty(err));
  79     }
  80
  81     g_assert(value == 0x42);
  82
  83     qobject_decref(obj);
  84
  85     obj = qobject_from_json("{'x': 42, 'y': 84}");
  86     mi = qmp_input_visitor_new(obj);
  87     v = qmp_input_get_visitor(mi);
  88
  89     pts = NULL;
  90
  91     visit_type_TestStruct(v, &pts, NULL, &err);
  92     if (err) {
  93         g_error("%s", error_get_pretty(err));
  94     }
  95
  96     g_assert(pts != NULL);
  97     g_assert(pts->x == 42);
  98     g_assert(pts->y == 84);
  99
 100     qobject_decref(obj);
 101     g_free(pts);
 102
 103     /* test list input visitor */
 104     obj = qobject_from_json("[{'x': 42, 'y': 84}, {'x': 12, 'y': 24}]");
 105     mi = qmp_input_visitor_new(obj);
 106     v = qmp_input_get_visitor(mi);
 107
 108     visit_type_TestStructList(v, &lts, NULL, &err);
 109     if (err) {
 110         g_error("%s", error_get_pretty(err));
 111     }
 112
 113     g_assert(lts != NULL);
 114     g_assert(lts->value->x == 42);
 115     g_assert(lts->value->y == 84);
 116
 117     g_assert(lts->next != NULL);
 118     g_assert(lts->next->value->x == 12);
 119     g_assert(lts->next->value->y == 24);
 120     g_assert(lts->next->next == NULL);
 121
 122     qobject_decref(obj);
 123
 124     /* test list output visitor */
 125     mo = qmp_output_visitor_new();
 126     v = qmp_output_get_visitor(mo);
 127     visit_type_TestStructList(v, &lts, NULL, &err);
 128     if (err) {
 129         g_error("%s", error_get_pretty(err));
 130     }
 131     obj = qmp_output_get_qobject(mo);
 132     g_print("obj: %s\n", qstring_get_str(qobject_to_json(obj)));
 133
 134     qlist = qobject_to_qlist(obj);
 135     assert(qlist);
 136     obj = qlist_pop(qlist);
 137     qdict = qobject_to_qdict(obj);
 138     assert(qdict);
 139     assert(qdict_get_int(qdict, "x") == 42);
 140     assert(qdict_get_int(qdict, "y") == 84);
 141     qobject_decref(obj);
 142
 143     obj = qlist_pop(qlist);
 144     qdict = qobject_to_qdict(obj);
 145     assert(qdict);
 146     assert(qdict_get_int(qdict, "x") == 12);
 147     assert(qdict_get_int(qdict, "y") == 24);
 148     qobject_decref(obj);
 149
 150     qmp_output_visitor_cleanup(mo);
 151     QDECREF(qlist);
 152 }
 153
 154 /* test deep nesting with refs to other user-defined types */
 155 static void test_nested_structs(void)
 156 {
 157     QmpOutputVisitor *mo;
 158     QmpInputVisitor *mi;
 159     Visitor *v;
 160     UserDefOne ud1;
 161     UserDefOne *ud1_p = &ud1, *ud1c_p = NULL;
 162     UserDefTwo ud2;
 163     UserDefTwo *ud2_p = &ud2, *ud2c_p = NULL;
 164     Error *err = NULL;
 165     QObject *obj;
 166     QString *str;
 167
 168     ud1.integer = 42;
 169     ud1.string = strdup("fourty two");
 170
 171     /* sanity check */
 172     mo = qmp_output_visitor_new();
 173     v = qmp_output_get_visitor(mo);
 174     visit_type_UserDefOne(v, &ud1_p, "o_O", &err);
 175     if (err) {
 176         g_error("%s", error_get_pretty(err));
 177     }
 178     obj = qmp_output_get_qobject(mo);
 179     g_assert(obj);
 180     qobject_decref(obj);
 181
 182     ud2.string = strdup("fourty three");
 183     ud2.dict.string = strdup("fourty four");
 184     ud2.dict.dict.userdef = ud1_p;
 185     ud2.dict.dict.string = strdup("fourty five");
 186     ud2.dict.has_dict2 = true;
 187     ud2.dict.dict2.userdef = ud1_p;
 188     ud2.dict.dict2.string = strdup("fourty six");
 189
 190     /* c type -> qobject */
 191     mo = qmp_output_visitor_new();
 192     v = qmp_output_get_visitor(mo);
 193     visit_type_UserDefTwo(v, &ud2_p, "unused", &err);
 194     if (err) {
 195         g_error("%s", error_get_pretty(err));
 196     }
 197     obj = qmp_output_get_qobject(mo);
 198     g_assert(obj);
 199     str = qobject_to_json_pretty(obj);
 200     g_print("%s\n", qstring_get_str(str));
 201     QDECREF(str);
 202
 203     /* qobject -> c type, should match original struct */
 204     mi = qmp_input_visitor_new(obj);
 205     v = qmp_input_get_visitor(mi);
 206     visit_type_UserDefTwo(v, &ud2c_p, NULL, &err);
 207     if (err) {
 208         g_error("%s", error_get_pretty(err));
 209     }
 210
 211     g_assert(!g_strcmp0(ud2c_p->string, ud2.string));
 212     g_assert(!g_strcmp0(ud2c_p->dict.string, ud2.dict.string));
 213
 214     ud1c_p = ud2c_p->dict.dict.userdef;
 215     g_assert(ud1c_p->integer == ud1_p->integer);
 216     g_assert(!g_strcmp0(ud1c_p->string, ud1_p->string));
 217
 218     g_assert(!g_strcmp0(ud2c_p->dict.dict.string, ud2.dict.dict.string));
 219
 220     ud1c_p = ud2c_p->dict.dict2.userdef;
 221     g_assert(ud1c_p->integer == ud1_p->integer);
 222     g_assert(!g_strcmp0(ud1c_p->string, ud1_p->string));
 223
 224     g_assert(!g_strcmp0(ud2c_p->dict.dict2.string, ud2.dict.dict2.string));
 225     g_free(ud1.string);
 226     g_free(ud2.string);
 227     g_free(ud2.dict.string);
 228     g_free(ud2.dict.dict.string);
 229     g_free(ud2.dict.dict2.string);
 230
 231     qapi_free_UserDefTwo(ud2c_p);
 232
 233     qobject_decref(obj);
 234 }
 235
 236 /* test enum values */
 237 static void test_enums(void)
 238 {
 239     QmpOutputVisitor *mo;
 240     QmpInputVisitor *mi;
 241     Visitor *v;
 242     EnumOne enum1 = ENUM_ONE_VALUE2, enum1_cpy = ENUM_ONE_VALUE1;
 243     Error *err = NULL;
 244     QObject *obj;
 245     QString *str;
 246
 247     /* C type -> QObject */
 248     mo = qmp_output_visitor_new();
 249     v = qmp_output_get_visitor(mo);
 250     visit_type_EnumOne(v, &enum1, "unused", &err);
 251     if (err) {
 252         g_error("%s", error_get_pretty(err));
 253     }
 254     obj = qmp_output_get_qobject(mo);
 255     g_assert(obj);
 256     str = qobject_to_json_pretty(obj);
 257     g_print("%s\n", qstring_get_str(str));
 258     QDECREF(str);
 259     g_assert(g_strcmp0(qstring_get_str(qobject_to_qstring(obj)), "value2") == 0);
 260
 261     /* QObject -> C type */
 262     mi = qmp_input_visitor_new(obj);
 263     v = qmp_input_get_visitor(mi);
 264     visit_type_EnumOne(v, &enum1_cpy, "unused", &err);
 265     if (err) {
 266         g_error("%s", error_get_pretty(err));
 267     }
 268     g_debug("enum1_cpy, enum1: %d, %d", enum1_cpy, enum1);
 269     g_assert(enum1_cpy == enum1);
 270
 271     qobject_decref(obj);
 272 }
 273
 274 /* test enum values nested in schema-defined structs */
 275 static void test_nested_enums(void)
 276 {
 277     QmpOutputVisitor *mo;
 278     QmpInputVisitor *mi;
 279     Visitor *v;
 280     NestedEnumsOne *nested_enums, *nested_enums_cpy = NULL;
 281     Error *err = NULL;
 282     QObject *obj;
 283     QString *str;
 284
 285     nested_enums = g_malloc0(sizeof(NestedEnumsOne));
 286     nested_enums->enum1 = ENUM_ONE_VALUE1;
 287     nested_enums->enum2 = ENUM_ONE_VALUE2;
 288     nested_enums->enum3 = ENUM_ONE_VALUE3;
 289     nested_enums->enum4 = ENUM_ONE_VALUE3;
 290     nested_enums->has_enum2 = false;
 291     nested_enums->has_enum4 = true;
 292
 293     /* C type -> QObject */
 294     mo = qmp_output_visitor_new();
 295     v = qmp_output_get_visitor(mo);
 296     visit_type_NestedEnumsOne(v, &nested_enums, NULL, &err);
 297     if (err) {
 298         g_error("%s", error_get_pretty(err));
 299     }
 300     obj = qmp_output_get_qobject(mo);
 301     g_assert(obj);
 302     str = qobject_to_json_pretty(obj);
 303     g_print("%s\n", qstring_get_str(str));
 304     QDECREF(str);
 305
 306     /* QObject -> C type */
 307     mi = qmp_input_visitor_new(obj);
 308     v = qmp_input_get_visitor(mi);
 309     visit_type_NestedEnumsOne(v, &nested_enums_cpy, NULL, &err);
 310     if (err) {
 311         g_error("%s", error_get_pretty(err));
 312     }
 313     g_assert(nested_enums_cpy);
 314     g_assert(nested_enums_cpy->enum1 == nested_enums->enum1);
 315     g_assert(nested_enums_cpy->enum3 == nested_enums->enum3);
 316     g_assert(nested_enums_cpy->enum4 == nested_enums->enum4);
 317     g_assert(nested_enums_cpy->has_enum2 == false);
 318     g_assert(nested_enums_cpy->has_enum4 == true);
 319
 320     qmp_output_visitor_cleanup(mo);
 321     qmp_input_visitor_cleanup(mi);
 322     qapi_free_NestedEnumsOne(nested_enums);
 323     qapi_free_NestedEnumsOne(nested_enums_cpy);
 324 }
 325
 326 int main(int argc, char **argv)
 327 {
 328     g_test_init(&argc, &argv, NULL);
 329
 330     g_test_add_func("/0.15/visitor_core", test_visitor_core);
 331     g_test_add_func("/0.15/nested_structs", test_nested_structs);
 332     g_test_add_func("/0.15/enums", test_enums);
 333     g_test_add_func("/0.15/nested_enums", test_nested_enums);
 334
 335     g_test_run();
 336
 337     return 0;
 338 }