json-c/tests/test4.c

/*
 * gcc -o utf8 utf8.c -I/home/y/include -L./.libs -ljson
 */

#include "config.h"
#include <assert.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>

#include "json_inttypes.h"
#include "json_object.h"
#include "json_tokener.h"

void print_hex(const char *s)
{
	const char *iter = s;
	unsigned char ch;
	while ((ch = *iter++) != 0)
	{
		if (',' != ch)
			printf("%x ", ch);
		else
			printf(",");
	}
	putchar('\n');
}

static void test_lot_of_adds(void);
static void test_lot_of_adds()
{
	int ii;
	char key[50];
	json_object *jobj = json_object_new_object();
	assert(jobj != NULL);
	for (ii = 0; ii < 500; ii++)
	{
		snprintf(key, sizeof(key), "k%d", ii);
		json_object *iobj = json_object_new_int(ii);
		assert(iobj != NULL);
		if (json_object_object_add(jobj, key, iobj))
		{
			fprintf(stderr, "FAILED to add object #%d\n", ii);
			abort();
		}
	}
	printf("%s\n", json_object_to_json_string(jobj));
	assert(json_object_object_length(jobj) == 500);
	json_object_put(jobj);
}

int main(void)
{
	const char *input = "\"\\ud840\\udd26,\\ud840\\udd27,\\ud800\\udd26,\\ud800\\udd27\"";
	const char *expected =
	    "\xF0\xA0\x84\xA6,\xF0\xA0\x84\xA7,\xF0\x90\x84\xA6,\xF0\x90\x84\xA7";
	struct json_object *parse_result = json_tokener_parse(input);
	const char *unjson = json_object_get_string(parse_result);

	printf("input: %s\n", input);

	int strings_match = !strcmp(expected, unjson);
	int retval = 0;
	if (strings_match)
	{
		printf("JSON parse result is correct: %s\n", unjson);
		puts("PASS");
	}
	else
	{
		printf("JSON parse result doesn't match expected string\n");
		printf("expected string bytes: ");
		print_hex(expected);
		printf("parsed string bytes:   ");
		print_hex(unjson);
		puts("FAIL");
		retval = 1;
	}
	json_object_put(parse_result);

	test_lot_of_adds();

	return retval;
}