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#ifndef _GNU_SOURCE
#define _GNU_SOURCE
#endif
#include "util.h"
#include <jansson.h>
#include <stdio.h>
#include <string.h>
static int chaos_pos = 0;
static int chaos_fail = 0;
#define CHAOS_MAX_FAILURE 100
void *chaos_malloc(size_t size) {
if (chaos_pos == chaos_fail)
return NULL;
chaos_pos++;
return malloc(size);
}
void chaos_free(void *obj) { free(obj); }
/* Test all potential allocation failures. */
#define chaos_loop(condition, code, cleanup) \
{ \
chaos_pos = chaos_fail = 0; \
while (condition) { \
if (chaos_fail > CHAOS_MAX_FAILURE) \
fail("too many chaos failures"); \
code chaos_pos = 0; \
chaos_fail++; \
} \
cleanup \
}
#define chaos_loop_new_value(json, initcall) \
chaos_loop(!json, json = initcall;, json_decref(json); json = NULL;)
int test_unpack() {
int ret = -1;
int v1;
int v2;
json_error_t error;
json_t *root = json_pack("{s:i, s:i, s:i, s:i}", "n1", 1, "n2", 2, "n3", 3, "n4", 4);
if (!root)
return -1;
if (!json_unpack_ex(root, &error, JSON_STRICT, "{s:i, s:i}", "n1", &v1, "n2", &v2))
fail("Unexpected success");
if (json_error_code(&error) != json_error_end_of_input_expected) {
if (json_error_code(&error) != json_error_out_of_memory)
fail("Unexpected error code");
goto out;
}
if (strcmp(error.text, "2 object item(s) left unpacked: n3, n4"))
goto out;
ret = 0;
out:
json_decref(root);
return ret;
}
int dump_chaos_callback(const char *buffer, size_t size, void *data) {
json_t *obj = json_object();
(void)buffer;
(void)size;
(void)data;
if (!obj)
return -1;
json_decref(obj);
return 0;
}
static void test_chaos() {
json_malloc_t orig_malloc;
json_free_t orig_free;
json_t *json = NULL;
json_t *obj = json_object();
json_t *arr1 = json_array();
json_t *arr2 = json_array();
json_t *txt = json_string("test");
json_t *intnum = json_integer(1);
json_t *dblnum = json_real(0.5);
char *dumptxt = NULL;
json_t *dumpobj = json_pack("{s:[iiis], s:s}", "key1", 1, 2, 3, "txt", "key2", "v2");
int keyno;
if (!obj || !arr1 || !arr2 || !txt || !intnum || !dblnum || !dumpobj)
fail("failed to allocate basic objects");
json_get_alloc_funcs(&orig_malloc, &orig_free);
json_set_alloc_funcs(chaos_malloc, chaos_free);
chaos_loop_new_value(json, json_pack("{s:s}", "key", "value"));
chaos_loop_new_value(json, json_pack("{s:[]}", "key"));
chaos_loop_new_value(json, json_pack("[biIf]", 1, 1, (json_int_t)1, 1.0));
chaos_loop_new_value(json, json_pack("[s*,s*]", "v1", "v2"));
chaos_loop_new_value(json, json_pack("o", json_incref(txt)));
chaos_loop_new_value(json, json_pack("O", txt));
chaos_loop_new_value(json, json_pack("s++", "a", "long string to force realloc",
"another long string to force yet another "
"reallocation of the string because "
"that's what we are testing."));
chaos_loop(test_unpack(), , );
chaos_loop(json_dump_callback(dumpobj, dump_chaos_callback, NULL, JSON_INDENT(1)),
, );
chaos_loop(json_dump_callback(dumpobj, dump_chaos_callback, NULL,
JSON_INDENT(1) | JSON_SORT_KEYS),
, );
chaos_loop(!dumptxt, dumptxt = json_dumps(dumpobj, JSON_COMPACT);, free(dumptxt);
dumptxt = NULL;);
chaos_loop_new_value(json, json_copy(obj));
chaos_loop_new_value(json, json_deep_copy(obj));
chaos_loop_new_value(json, json_copy(arr1));
chaos_loop_new_value(json, json_deep_copy(arr1));
chaos_loop_new_value(json, json_copy(txt));
chaos_loop_new_value(json, json_copy(intnum));
chaos_loop_new_value(json, json_copy(dblnum));
#define JSON_LOAD_TXT "{\"n\":[1,2,3,4,5,6,7,8,9,10]}"
chaos_loop_new_value(json, json_loads(JSON_LOAD_TXT, 0, NULL));
chaos_loop_new_value(json, json_loadb(JSON_LOAD_TXT, strlen(JSON_LOAD_TXT), 0, NULL));
chaos_loop_new_value(json, json_sprintf("%s", "string"));
for (keyno = 0; keyno < 100; ++keyno) {
#if !defined(_MSC_VER) || _MSC_VER >= 1900
/* Skip this test on old Windows compilers. */
char testkey[10];
snprintf(testkey, sizeof(testkey), "test%d", keyno);
chaos_loop(json_object_set_new_nocheck(obj, testkey, json_object()), , );
#endif
chaos_loop(json_array_append_new(arr1, json_null()), , );
chaos_loop(json_array_insert_new(arr2, 0, json_null()), , );
}
chaos_loop(json_array_extend(arr1, arr2), , );
chaos_loop(json_string_set_nocheck(txt, "test"), , );
json_set_alloc_funcs(orig_malloc, orig_free);
json_decref(obj);
json_decref(arr1);
json_decref(arr2);
json_decref(txt);
json_decref(intnum);
json_decref(dblnum);
json_decref(dumpobj);
}
static void run_tests() { test_chaos(); }
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