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;
  31
  32     visit_start_list(m, name, errp);
  33
  34     for (i = visit_next_list(m, (GenericList **)obj, 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     QString *str;
  54     int64_t value = 0;
  55
  56     mo = qmp_output_visitor_new();
  57     v = qmp_output_get_visitor(mo);
  58
  59     visit_type_TestStruct(v, &pts, NULL, &err);
  60
  61     obj = qmp_output_get_qobject(mo);
  62
  63     str = qobject_to_json(obj);
  64
  65     printf("%s\n", qstring_get_str(str));
  66
  67     QDECREF(str);
  68
  69     obj = QOBJECT(qint_from_int(0x42));
  70
  71     mi = qmp_input_visitor_new(obj);
  72     v = qmp_input_get_visitor(mi);
  73
  74     visit_type_int(v, &value, NULL, &err);
  75     if (err) {
  76         g_error("%s", error_get_pretty(err));
  77     }
  78
  79     g_assert(value == 0x42);
  80
  81     qobject_decref(obj);
  82
  83     obj = qobject_from_json("{'x': 42, 'y': 84}");
  84     mi = qmp_input_visitor_new(obj);
  85     v = qmp_input_get_visitor(mi);
  86
  87     pts = NULL;
  88
  89     visit_type_TestStruct(v, &pts, NULL, &err);
  90     if (err) {
  91         g_error("%s", error_get_pretty(err));
  92     }
  93
  94     g_assert(pts != NULL);
  95     g_assert(pts->x == 42);
  96     g_assert(pts->y == 84);
  97
  98     qobject_decref(obj);
  99
 100     obj = qobject_from_json("[{'x': 42, 'y': 84}, {'x': 12, 'y': 24}]");
 101     mi = qmp_input_visitor_new(obj);
 102     v = qmp_input_get_visitor(mi);
 103
 104     visit_type_TestStructList(v, &lts, NULL, &err);
 105     if (err) {
 106         g_error("%s", error_get_pretty(err));
 107     }
 108
 109     g_assert(lts != NULL);
 110     g_assert(lts->value->x == 42);
 111     g_assert(lts->value->y == 84);
 112
 113     lts = lts->next;
 114     g_assert(lts != NULL);
 115     g_assert(lts->value->x == 12);
 116     g_assert(lts->value->y == 24);
 117
 118     g_assert(lts->next == NULL);
 119
 120     qobject_decref(obj);
 121 }
 122
 123 /* test deep nesting with refs to other user-defined types */
 124 static void test_nested_structs(void)
 125 {
 126     QmpOutputVisitor *mo;
 127     QmpInputVisitor *mi;
 128     Visitor *v;
 129     UserDefOne ud1;
 130     UserDefOne *ud1_p = &ud1, *ud1c_p = NULL;
 131     UserDefTwo ud2;
 132     UserDefTwo *ud2_p = &ud2, *ud2c_p = NULL;
 133     Error *err = NULL;
 134     QObject *obj;
 135     QString *str;
 136
 137     ud1.integer = 42;
 138     ud1.string = strdup("fourty two");
 139
 140     /* sanity check */
 141     mo = qmp_output_visitor_new();
 142     v = qmp_output_get_visitor(mo);
 143     visit_type_UserDefOne(v, &ud1_p, "o_O", &err);
 144     if (err) {
 145         g_error("%s", error_get_pretty(err));
 146     }
 147     obj = qmp_output_get_qobject(mo);
 148     g_assert(obj);
 149     qobject_decref(obj);
 150
 151     ud2.string = strdup("fourty three");
 152     ud2.dict.string = strdup("fourty four");
 153     ud2.dict.dict.userdef = ud1_p;
 154     ud2.dict.dict.string = strdup("fourty five");
 155     ud2.dict.has_dict2 = true;
 156     ud2.dict.dict2.userdef = ud1_p;
 157     ud2.dict.dict2.string = strdup("fourty six");
 158
 159     /* c type -> qobject */
 160     mo = qmp_output_visitor_new();
 161     v = qmp_output_get_visitor(mo);
 162     visit_type_UserDefTwo(v, &ud2_p, "unused", &err);
 163     if (err) {
 164         g_error("%s", error_get_pretty(err));
 165     }
 166     obj = qmp_output_get_qobject(mo);
 167     g_assert(obj);
 168     str = qobject_to_json_pretty(obj);
 169     g_print("%s\n", qstring_get_str(str));
 170     QDECREF(str);
 171
 172     /* qobject -> c type, should match original struct */
 173     mi = qmp_input_visitor_new(obj);
 174     v = qmp_input_get_visitor(mi);
 175     visit_type_UserDefTwo(v, &ud2c_p, NULL, &err);
 176     if (err) {
 177         g_error("%s", error_get_pretty(err));
 178     }
 179
 180     g_assert(!g_strcmp0(ud2c_p->string, ud2.string));
 181     g_assert(!g_strcmp0(ud2c_p->dict.string, ud2.dict.string));
 182
 183     ud1c_p = ud2c_p->dict.dict.userdef;
 184     g_assert(ud1c_p->integer == ud1_p->integer);
 185     g_assert(!g_strcmp0(ud1c_p->string, ud1_p->string));
 186
 187     g_assert(!g_strcmp0(ud2c_p->dict.dict.string, ud2.dict.dict.string));
 188
 189     ud1c_p = ud2c_p->dict.dict2.userdef;
 190     g_assert(ud1c_p->integer == ud1_p->integer);
 191     g_assert(!g_strcmp0(ud1c_p->string, ud1_p->string));
 192
 193     g_assert(!g_strcmp0(ud2c_p->dict.dict2.string, ud2.dict.dict2.string));
 194     g_free(ud1.string);
 195     g_free(ud2.string);
 196     g_free(ud2.dict.string);
 197     g_free(ud2.dict.dict.string);
 198     g_free(ud2.dict.dict2.string);
 199
 200     qapi_free_UserDefTwo(ud2c_p);
 201
 202     qobject_decref(obj);
 203 }
 204
 205 /* test enum values */
 206 static void test_enums(void)
 207 {
 208     QmpOutputVisitor *mo;
 209     QmpInputVisitor *mi;
 210     Visitor *v;
 211     EnumOne enum1 = ENUM_ONE_VALUE2, enum1_cpy = ENUM_ONE_VALUE1;
 212     Error *err = NULL;
 213     QObject *obj;
 214     QString *str;
 215
 216     /* C type -> QObject */
 217     mo = qmp_output_visitor_new();
 218     v = qmp_output_get_visitor(mo);
 219     visit_type_EnumOne(v, &enum1, "unused", &err);
 220     if (err) {
 221         g_error("%s", error_get_pretty(err));
 222     }
 223     obj = qmp_output_get_qobject(mo);
 224     g_assert(obj);
 225     str = qobject_to_json_pretty(obj);
 226     g_print("%s\n", qstring_get_str(str));
 227     QDECREF(str);
 228     g_assert(g_strcmp0(qstring_get_str(qobject_to_qstring(obj)), "value2") == 0);
 229
 230     /* QObject -> C type */
 231     mi = qmp_input_visitor_new(obj);
 232     v = qmp_input_get_visitor(mi);
 233     visit_type_EnumOne(v, &enum1_cpy, "unused", &err);
 234     if (err) {
 235         g_error("%s", error_get_pretty(err));
 236     }
 237     g_debug("enum1_cpy, enum1: %d, %d", enum1_cpy, enum1);
 238     g_assert(enum1_cpy == enum1);
 239
 240     qobject_decref(obj);
 241 }
 242
 243 /* test enum values nested in schema-defined structs */
 244 static void test_nested_enums(void)
 245 {
 246     QmpOutputVisitor *mo;
 247     QmpInputVisitor *mi;
 248     Visitor *v;
 249     NestedEnumsOne *nested_enums, *nested_enums_cpy = NULL;
 250     Error *err = NULL;
 251     QObject *obj;
 252     QString *str;
 253
 254     nested_enums = g_malloc0(sizeof(NestedEnumsOne));
 255     nested_enums->enum1 = ENUM_ONE_VALUE1;
 256     nested_enums->enum2 = ENUM_ONE_VALUE2;
 257     nested_enums->enum3 = ENUM_ONE_VALUE3;
 258     nested_enums->enum4 = ENUM_ONE_VALUE3;
 259     nested_enums->has_enum2 = false;
 260     nested_enums->has_enum4 = true;
 261
 262     /* C type -> QObject */
 263     mo = qmp_output_visitor_new();
 264     v = qmp_output_get_visitor(mo);
 265     visit_type_NestedEnumsOne(v, &nested_enums, NULL, &err);
 266     if (err) {
 267         g_error("%s", error_get_pretty(err));
 268     }
 269     obj = qmp_output_get_qobject(mo);
 270     g_assert(obj);
 271     str = qobject_to_json_pretty(obj);
 272     g_print("%s\n", qstring_get_str(str));
 273     QDECREF(str);
 274
 275     /* QObject -> C type */
 276     mi = qmp_input_visitor_new(obj);
 277     v = qmp_input_get_visitor(mi);
 278     visit_type_NestedEnumsOne(v, &nested_enums_cpy, NULL, &err);
 279     if (err) {
 280         g_error("%s", error_get_pretty(err));
 281     }
 282     g_assert(nested_enums_cpy);
 283     g_assert(nested_enums_cpy->enum1 == nested_enums->enum1);
 284     g_assert(nested_enums_cpy->enum3 == nested_enums->enum3);
 285     g_assert(nested_enums_cpy->enum4 == nested_enums->enum4);
 286     g_assert(nested_enums_cpy->has_enum2 == false);
 287     g_assert(nested_enums_cpy->has_enum4 == true);
 288
 289     qobject_decref(obj);
 290     qapi_free_NestedEnumsOne(nested_enums);
 291     qapi_free_NestedEnumsOne(nested_enums_cpy);
 292 }
 293
 294 int main(int argc, char **argv)
 295 {
 296     g_test_init(&argc, &argv, NULL);
 297
 298     g_test_add_func("/0.15/visitor_core", test_visitor_core);
 299     g_test_add_func("/0.15/nested_structs", test_nested_structs);
 300     g_test_add_func("/0.15/enums", test_enums);
 301     g_test_add_func("/0.15/nested_enums", test_nested_enums);
 302
 303     g_test_run();
 304
 305     return 0;
 306 }