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check-qjson: Add test for JSON nesting depth limit 

This would have prevented the regression mentioned in the previous
commit.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Message-Id: <1448486613-17634-4-git-send-email-armbru@redhat.com>
This commit is contained in:
Markus Armbruster 2015-11-25 22:23:24 +01:00
parent 0753113a26
commit f0ae0304c7
1 changed files with 25 additions and 0 deletions
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25
tests/check-qjson.c
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@ -1484,6 +1484,30 @@ static void unterminated_literal(void)
g_assert(obj == NULL);
}
static char *make_nest(char *buf, size_t cnt)
{
memset(buf, '[', cnt - 1);
buf[cnt - 1] = '{';
buf[cnt] = '}';
memset(buf + cnt + 1, ']', cnt - 1);
buf[2 * cnt] = 0;
return buf;
}
static void limits_nesting(void)
{
enum { max_nesting = 1024 }; /* see qobject/json-streamer.c */
char buf[2 * (max_nesting + 1) + 1];
QObject *obj;
obj = qobject_from_json(make_nest(buf, max_nesting));
g_assert(obj != NULL);
qobject_decref(obj);
obj = qobject_from_json(make_nest(buf, max_nesting + 1));
g_assert(obj == NULL);
}
int main(int argc, char **argv)
{
g_test_init(&argc, &argv, NULL);
@ -1519,6 +1543,7 @@ int main(int argc, char **argv)
g_test_add_func("/errors/invalid_array_comma", invalid_array_comma);
g_test_add_func("/errors/invalid_dict_comma", invalid_dict_comma);
g_test_add_func("/errors/unterminated/literal", unterminated_literal);
g_test_add_func("/errors/limits/nesting", limits_nesting);
return g_test_run();
}