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;
}
static _Noreturn void
json_parse_error (const json_error_t *error)
{
Lisp_Object symbol;
#if JSON_HAS_ERROR_CODE
switch (json_error_code (error))
{
case json_error_premature_end_of_input:
symbol = Qjson_end_of_file;
break;
case json_error_end_of_input_expected:
symbol = Qjson_trailing_content;
break;
default:
symbol = Qjson_parse_error;
break;
}
#else
if (json_has_suffix (error->text, "expected near end of file"))
symbol = Qjson_end_of_file;
else if (json_has_prefix (error->text, "end of file expected"))
symbol = Qjson_trailing_content;
else
symbol = Qjson_parse_error;
#endif
xsignal (symbol,
list5 (json_build_string (error->text),
json_build_string (error->source), make_natnum (error->line),
make_natnum (error->column), make_natnum (error->position)));
}
static void file_not_found()
{
json_t *json;
json_error_t error;
char *pos;
json = json_load_file("/path/to/nonexistent/file.json", 0, &error);
if(json)
fail("json_load_file returned non-NULL for a nonexistent file");
if(error.line != -1)
fail("json_load_file returned an invalid line number");
/* The error message is locale specific, only check the beginning
of the error message. */
pos = strchr(error.text, ':');
if(!pos)
fail("json_load_file returne an invalid error message");
*pos = '\0';
if(strcmp(error.text, "unable to open /path/to/nonexistent/file.json") != 0)
fail("json_load_file returned an invalid error message");
if(json_error_code(&error) != json_error_cannot_open_file)
fail("json_load_file returned an invalid error code");
}
static void error_code()
{
json_error_t error;
json_t *json = json_loads("[123] garbage", 0, &error);
if(json != NULL)
fail("json_loads returned not NULL");
if(strlen(error.text) >= JSON_ERROR_TEXT_LENGTH)
fail("error.text longer than expected");
if(json_error_code(&error) != json_error_end_of_input_expected)
fail("json_loads returned incorrect error code");
json = json_loads("{\"foo\": ", 0, &error);
if(json != NULL)
fail("json_loads returned not NULL");
if(strlen(error.text) >= JSON_ERROR_TEXT_LENGTH)
fail("error.text longer than expected");
if(json_error_code(&error) != json_error_premature_end_of_input)
fail("json_loads returned incorrect error code");
}
static void very_long_file_name() {
json_t *json;
json_error_t error;
json = json_load_file("aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0, &error);
if(json)
fail("json_load_file returned non-NULL for a nonexistent file");
if(error.line != -1)
fail("json_load_file returned an invalid line number");
if (strncmp(error.source, "...aaa", 6) != 0)
fail("error source was set incorrectly");
if(json_error_code(&error) != json_error_cannot_open_file)
fail("error code was set incorrectly");
}
static void decode_int_as_real()
{
json_t *json;
json_error_t error;
#if JSON_INTEGER_IS_LONG_LONG
const char *imprecise;
json_int_t expected;
#endif
char big[311];
json = json_loads("42", JSON_DECODE_INT_AS_REAL | JSON_DECODE_ANY, &error);
if (!json || !json_is_real(json) || json_real_value(json) != 42.0)
fail("json_load decode int as real failed - int");
json_decref(json);
#if JSON_INTEGER_IS_LONG_LONG
/* This number cannot be represented exactly by a double */
imprecise = "9007199254740993";
expected = 9007199254740992ll;
json = json_loads(imprecise, JSON_DECODE_INT_AS_REAL | JSON_DECODE_ANY,
&error);
if (!json || !json_is_real(json) || expected != (json_int_t)json_real_value(json))
fail("json_load decode int as real failed - expected imprecision");
json_decref(json);
#endif
/* 1E309 overflows. Here we create 1E309 as a decimal number, i.e.
1000...(309 zeroes)...0. */
big[0] = '1';
memset(big + 1, '0', 309);
big[310] = '\0';
json = json_loads(big, JSON_DECODE_INT_AS_REAL | JSON_DECODE_ANY, &error);
if (json || strcmp(error.text, "real number overflow") != 0 ||
json_error_code(&error) != json_error_numeric_overflow)
fail("json_load decode int as real failed - expected overflow");
json_decref(json);
}