jansson/test/suites/api/test_load.c

247 lines
7.3 KiB
C

/*
* Copyright (c) 2009-2016 Petri Lehtinen <petri@digip.org>
*
* Jansson is free software; you can redistribute it and/or modify
* it under the terms of the MIT license. See LICENSE for details.
*/
#include <jansson.h>
#include <string.h>
#include "util.h"
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 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 reject_duplicates()
{
json_error_t error;
if(json_loads("{\"foo\": 1, \"foo\": 2}", JSON_REJECT_DUPLICATES, &error))
fail("json_loads did not detect a duplicate key");
check_error(json_error_duplicate_key, "duplicate object key near '\"foo\"'", "<string>", 1, 16, 16);
}
static void disable_eof_check()
{
json_error_t error;
json_t *json;
const char *text = "{\"foo\": 1} garbage";
if(json_loads(text, 0, &error))
fail("json_loads did not detect garbage after JSON text");
check_error(json_error_end_of_input_expected, "end of file expected near 'garbage'", "<string>", 1, 18, 18);
json = json_loads(text, JSON_DISABLE_EOF_CHECK, &error);
if(!json)
fail("json_loads failed with JSON_DISABLE_EOF_CHECK");
json_decref(json);
}
static void decode_any()
{
json_t *json;
json_error_t error;
json = json_loads("\"foo\"", JSON_DECODE_ANY, &error);
if (!json || !json_is_string(json))
fail("json_load decoded any failed - string");
json_decref(json);
json = json_loads("42", JSON_DECODE_ANY, &error);
if (!json || !json_is_integer(json))
fail("json_load decoded any failed - integer");
json_decref(json);
json = json_loads("true", JSON_DECODE_ANY, &error);
if (!json || !json_is_true(json))
fail("json_load decoded any failed - boolean");
json_decref(json);
json = json_loads("null", JSON_DECODE_ANY, &error);
if (!json || !json_is_null(json))
fail("json_load decoded any failed - null");
json_decref(json);
}
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);
}
static void allow_nul()
{
const char *text = "\"nul byte \\u0000 in string\"";
const char *expected = "nul byte \0 in string";
size_t len = 20;
json_t *json;
json = json_loads(text, JSON_ALLOW_NUL | JSON_DECODE_ANY, NULL);
if(!json || !json_is_string(json))
fail("unable to decode embedded NUL byte");
if(json_string_length(json) != len)
fail("decoder returned wrong string length");
if(memcmp(json_string_value(json), expected, len + 1))
fail("decoder returned wrong string content");
json_decref(json);
}
static void load_wrong_args()
{
json_t *json;
json_error_t error;
json = json_loads(NULL, 0, &error);
if (json)
fail("json_loads should return NULL if the first argument is NULL");
json = json_loadb(NULL, 0, 0, &error);
if (json)
fail("json_loadb should return NULL if the first argument is NULL");
json = json_loadf(NULL, 0, &error);
if (json)
fail("json_loadf should return NULL if the first argument is NULL");
json = json_loadfd(-1, 0, &error);
if (json)
fail("json_loadfd should return NULL if the first argument is < 0");
json = json_load_file(NULL, 0, &error);
if (json)
fail("json_load_file should return NULL if the first argument is NULL");
}
static void position()
{
json_t *json;
size_t flags = JSON_DISABLE_EOF_CHECK;
json_error_t error;
json = json_loads("{\"foo\": \"bar\"}", 0, &error);
if(error.position != 14)
fail("json_loads returned a wrong position");
json_decref(json);
json = json_loads("{\"foo\": \"bar\"} baz quux", flags, &error);
if(error.position != 14)
fail("json_loads returned a wrong position");
json_decref(json);
}
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 run_tests()
{
file_not_found();
very_long_file_name();
reject_duplicates();
disable_eof_check();
decode_any();
decode_int_as_real();
allow_nul();
load_wrong_args();
position();
error_code();
}