tests/test_cast.c

   1 /*
   2  * Tests if casting within the json_object_get_* functions work correctly.
   3  * Also checks the json_object_get_type and json_object_is_type functions.
   4  */
   5
   6 #include <stdio.h>
   7 #include <string.h>
   8 #include <stdlib.h>
   9 #include "config.h"
  10
  11 #include "json_inttypes.h"
  12 #include "json_object.h"
  13 #include "json_tokener.h"
  14 #include "json_util.h"
  15
  16 static void getit(struct json_object *new_obj, const char *field);
  17 static void checktype_header(void);
  18 static void checktype(struct json_object *new_obj, const char *field);
  19
  20 int main(int argc, char **argv)
  21 {
  22         const char *input = "{\n\
  23                 \"string_of_digits\": \"123\",\n\
  24                 \"regular_number\": 222,\n\
  25                 \"decimal_number\": 99.55,\n\
  26                 \"boolean_true\": true,\n\
  27                 \"boolean_false\": false,\n\
  28                 \"big_number\": 2147483649,\n\
  29                 \"a_null\": null,\n\
  30         }";
  31         /* Note: 2147483649 = INT_MAX + 2 */
  32
  33         struct json_object *new_obj;
  34
  35         new_obj = json_tokener_parse(input);
  36         printf("Parsed input: %s\n", input);
  37         printf("Result is %s\n", (new_obj == NULL) ? "NULL (error!)" : "not NULL");
  38         if (!new_obj)
  39                 return 1; // oops, we failed.
  40
  41         getit(new_obj, "string_of_digits");
  42         getit(new_obj, "regular_number");
  43         getit(new_obj, "decimal_number");
  44         getit(new_obj, "boolean_true");
  45         getit(new_obj, "boolean_false");
  46         getit(new_obj, "big_number");
  47         getit(new_obj, "a_null");
  48
  49         // Now check the behaviour of the json_object_is_type() function.
  50         printf("\n================================\n");
  51         checktype_header();
  52         checktype(new_obj, NULL);
  53         checktype(new_obj, "string_of_digits");
  54         checktype(new_obj, "regular_number");
  55         checktype(new_obj, "decimal_number");
  56         checktype(new_obj, "boolean_true");
  57         checktype(new_obj, "boolean_false");
  58         checktype(new_obj, "big_number");
  59         checktype(new_obj, "a_null");
  60
  61     json_object_put(new_obj);
  62
  63     return 0;
  64 }
  65
  66 static void getit(struct json_object *new_obj, const char *field)
  67 {
  68         struct json_object *o = json_object_object_get(new_obj, field);
  69
  70         enum json_type o_type = json_object_get_type(o);
  71         printf("new_obj.%s json_object_get_type()=%s\n", field,
  72                json_type_to_name(o_type));
  73         printf("new_obj.%s json_object_get_int()=%d\n", field,
  74                json_object_get_int(o));
  75         printf("new_obj.%s json_object_get_int64()=%" PRId64 "\n", field,
  76                json_object_get_int64(o));
  77         printf("new_obj.%s json_object_get_boolean()=%d\n", field,
  78                json_object_get_boolean(o));
  79         printf("new_obj.%s json_object_get_double()=%f\n", field,
  80                json_object_get_double(o));
  81 }
  82
  83 static void checktype_header()
  84 {
  85         printf("json_object_is_type: %s,%s,%s,%s,%s,%s,%s\n",
  86                 json_type_to_name(json_type_null),
  87                 json_type_to_name(json_type_boolean),
  88                 json_type_to_name(json_type_double),
  89                 json_type_to_name(json_type_int),
  90                 json_type_to_name(json_type_object),
  91                 json_type_to_name(json_type_array),
  92                 json_type_to_name(json_type_string));
  93 }
  94 static void checktype(struct json_object *new_obj, const char *field)
  95 {
  96         struct json_object *o = field ? json_object_object_get(new_obj, field) : new_obj;
  97         printf("new_obj%s%-18s: %d,%d,%d,%d,%d,%d,%d\n",
  98                 field ? "." : " ", field ? field : "",
  99                 json_object_is_type(o, json_type_null),
 100                 json_object_is_type(o, json_type_boolean),
 101                 json_object_is_type(o, json_type_double),
 102                 json_object_is_type(o, json_type_int),
 103                 json_object_is_type(o, json_type_object),
 104                 json_object_is_type(o, json_type_array),
 105                 json_object_is_type(o, json_type_string));
 106 }