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test_parse.c
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test_parse.c
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#include <stdio.h>
#include <stdlib.h>
#include <stddef.h>
#include <string.h>
#include <assert.h>
#include "json.h"
#include "json_tokener.h"
static void test_basic_parse(void);
static void test_verbose_parse(void);
static void test_incremental_parse(void);
int main(int argc, char **argv)
{
MC_SET_DEBUG(1);
test_basic_parse();
printf("==================================\n");
test_verbose_parse();
printf("==================================\n");
test_incremental_parse();
printf("==================================\n");
}
static void test_basic_parse()
{
json_object *new_obj;
new_obj = json_tokener_parse("\"\003\"");
printf("new_obj.to_string()=%s\n", json_object_to_json_string(new_obj));
json_object_put(new_obj);
new_obj = json_tokener_parse("/* hello */\"foo\"");
printf("new_obj.to_string()=%s\n", json_object_to_json_string(new_obj));
json_object_put(new_obj);
new_obj = json_tokener_parse("// hello\n\"foo\"");
printf("new_obj.to_string()=%s\n", json_object_to_json_string(new_obj));
json_object_put(new_obj);
new_obj = json_tokener_parse("\"\\u0041\\u0042\\u0043\"");
printf("new_obj.to_string()=%s\n", json_object_to_json_string(new_obj));
json_object_put(new_obj);
new_obj = json_tokener_parse("null");
printf("new_obj.to_string()=%s\n", json_object_to_json_string(new_obj));
json_object_put(new_obj);
new_obj = json_tokener_parse("True");
printf("new_obj.to_string()=%s\n", json_object_to_json_string(new_obj));
json_object_put(new_obj);
new_obj = json_tokener_parse("12");
printf("new_obj.to_string()=%s\n", json_object_to_json_string(new_obj));
json_object_put(new_obj);
new_obj = json_tokener_parse("12.3");
printf("new_obj.to_string()=%s\n", json_object_to_json_string(new_obj));
json_object_put(new_obj);
new_obj = json_tokener_parse("[\"\\n\"]");
printf("new_obj.to_string()=%s\n", json_object_to_json_string(new_obj));
json_object_put(new_obj);
new_obj = json_tokener_parse("[\"\\nabc\\n\"]");
printf("new_obj.to_string()=%s\n", json_object_to_json_string(new_obj));
json_object_put(new_obj);
new_obj = json_tokener_parse("[null]");
printf("new_obj.to_string()=%s\n", json_object_to_json_string(new_obj));
json_object_put(new_obj);
new_obj = json_tokener_parse("[]");
printf("new_obj.to_string()=%s\n", json_object_to_json_string(new_obj));
json_object_put(new_obj);
new_obj = json_tokener_parse("[false]");
printf("new_obj.to_string()=%s\n", json_object_to_json_string(new_obj));
json_object_put(new_obj);
new_obj = json_tokener_parse("[\"abc\",null,\"def\",12]");
printf("new_obj.to_string()=%s\n", json_object_to_json_string(new_obj));
json_object_put(new_obj);
new_obj = json_tokener_parse("{}");
printf("new_obj.to_string()=%s\n", json_object_to_json_string(new_obj));
json_object_put(new_obj);
new_obj = json_tokener_parse("{ \"foo\": \"bar\" }");
printf("new_obj.to_string()=%s\n", json_object_to_json_string(new_obj));
json_object_put(new_obj);
new_obj = json_tokener_parse("{ \"foo\": \"bar\", \"baz\": null, \"bool0\": true }");
printf("new_obj.to_string()=%s\n", json_object_to_json_string(new_obj));
json_object_put(new_obj);
new_obj = json_tokener_parse("{ \"foo\": [null, \"foo\"] }");
printf("new_obj.to_string()=%s\n", json_object_to_json_string(new_obj));
json_object_put(new_obj);
new_obj = json_tokener_parse("{ \"abc\": 12, \"foo\": \"bar\", \"bool0\": false, \"bool1\": true, \"arr\": [ 1, 2, 3, null, 5 ] }");
printf("new_obj.to_string()=%s\n", json_object_to_json_string(new_obj));
json_object_put(new_obj);
}
static void test_verbose_parse()
{
json_object *new_obj;
enum json_tokener_error error = json_tokener_success;
new_obj = json_tokener_parse_verbose("{ foo }", &error);
assert (error == json_tokener_error_parse_object_key_name);
assert (new_obj == NULL);
new_obj = json_tokener_parse("{ foo }");
assert (new_obj == NULL);
new_obj = json_tokener_parse("foo");
assert (new_obj == NULL);
new_obj = json_tokener_parse_verbose("foo", &error);
assert (new_obj == NULL);
/* b/c the string starts with 'f' parsing return a boolean error */
assert (error == json_tokener_error_parse_boolean);
printf("json_tokener_parse_versbose() OK\n");
}
struct incremental_step {
const char *string_to_parse;
int length;
int char_offset;
enum json_tokener_error expected_error;
int reset_tokener;
} incremental_steps[] = {
/* Check that full json messages can be parsed, both w/ and w/o a reset */
{ "{ \"foo\": 123 }", -1, -1, json_tokener_success, 0 },
{ "{ \"foo\": 456 }", -1, -1, json_tokener_success, 1 },
{ "{ \"foo\": 789 }", -1, -1, json_tokener_success, 1 },
/* Check a basic incremental parse */
{ "{ \"foo", -1, -1, json_tokener_continue, 0 },
{ "\": {\"bar", -1, -1, json_tokener_continue, 0 },
{ "\":13}}", -1, -1, json_tokener_success, 1 },
/* Check that json_tokener_reset actually resets */
{ "{ \"foo", -1, -1, json_tokener_continue, 1 },
{ ": \"bar\"}", -1, 0, json_tokener_error_parse_unexpected, 1 },
/* Check incremental parsing with trailing characters */
{ "{ \"foo", -1, -1, json_tokener_continue, 0 },
{ "\": {\"bar", -1, -1, json_tokener_continue, 0 },
{ "\":13}}XXXX", 10, 6, json_tokener_success, 0 },
{ "XXXX", 4, 0, json_tokener_error_parse_unexpected, 1 },
/* Check that trailing characters can change w/o a reset */
{ "{\"x\": 123 }\"X\"", -1, 11, json_tokener_success, 0 },
{ "\"Y\"", -1, -1, json_tokener_success, 1 },
/* To stop parsing a number we need to reach a non-digit, e.g. a \0 */
{ "1", 1, 1, json_tokener_continue, 0 },
{ "2", 2, 1, json_tokener_success, 0 },
/* Strings have a well defined end point, so we can stop at the quote */
{ "\"blue\"", -1, -1, json_tokener_success, 0 },
{ "[1,2,3]", -1, -1, json_tokener_success, 0 },
/* This behaviour doesn't entirely follow the json spec, but until we have
a way to specify how strict to be we follow Postel's Law and be liberal
in what we accept (up to a point). */
{ "[1,2,3,]", -1, -1, json_tokener_success, 0 },
{ "[1,2,,3,]", -1, 5, json_tokener_error_parse_unexpected, 0 },
{ NULL, json_tokener_success },
};
static void test_incremental_parse()
{
json_object *new_obj;
enum json_tokener_error jerr;
json_tokener *tok;
const char *string_to_parse;
int ii;
int num_ok, num_error;
num_ok = 0;
num_error = 0;
printf("Starting incremental tests.\n");
string_to_parse = "{ \"foo"; /* } */
printf("json_tokener_parse(%s) ... ", string_to_parse);
new_obj = json_tokener_parse(string_to_parse);
if (new_obj == NULL) printf("got error as expected\n");
/* test incremental parsing in various forms */
tok = json_tokener_new();
for (ii = 0; incremental_steps[ii].string_to_parse != NULL; ii++)
{
int this_step_ok = 0;
struct incremental_step *step = &incremental_steps[ii];
int length = step->length;
int expected_char_offset = step->char_offset;
if (length == -1)
length = strlen(step->string_to_parse);
if (expected_char_offset == -1)
expected_char_offset = length;
printf("json_tokener_parse_ex(tok, %-12s, %3d) ... ",
step->string_to_parse, length);
new_obj = json_tokener_parse_ex(tok, step->string_to_parse, length);
jerr = json_tokener_get_error(tok);
if (step->expected_error != json_tokener_success)
{
if (new_obj != NULL)
printf("ERROR: invalid object returned: %s\n",
json_object_to_json_string(new_obj));
else if (jerr != step->expected_error)
printf("ERROR: got wrong error: %s\n",
json_tokener_error_desc(jerr));
else if (tok->char_offset != expected_char_offset)
printf("ERROR: wrong char_offset %d != expected %d\n",
tok->char_offset,
expected_char_offset);
else
{
printf("OK: got correct error: %s\n", json_tokener_error_desc(jerr));
this_step_ok = 1;
}
}
else
{
if (new_obj == NULL)
printf("ERROR: expected valid object, instead: %s\n",
json_tokener_error_desc(jerr));
else if (tok->char_offset != expected_char_offset)
printf("ERROR: wrong char_offset %d != expected %d\n",
tok->char_offset,
expected_char_offset);
else
{
printf("OK: got object of type [%s]: %s\n",
json_type_to_name(json_object_get_type(new_obj)),
json_object_to_json_string(new_obj));
this_step_ok = 1;
}
}
if (new_obj)
json_object_put(new_obj);
if (step->reset_tokener)
json_tokener_reset(tok);
if (this_step_ok)
num_ok++;
else
num_error++;
}
json_tokener_free(tok);
printf("End Incremental Tests OK=%d ERROR=%d\n", num_ok, num_error);
return;
}