core-lightning/common/test/run-json_scan.c

#include "../json.c"
#include <assert.h>
#include <ccan/mem/mem.h>
#include <ccan/tal/str/str.h>
#include <common/amount.h>
#include <common/json.h>
#include <common/setup.h>
#include <common/utils.h>
#include <inttypes.h>
#include <stdio.h>
#include <wire/wire.h>

/* AUTOGENERATED MOCKS START */
/* Generated stub for amount_asset_is_main */
bool amount_asset_is_main(struct amount_asset *asset UNNEEDED)
{ fprintf(stderr, "amount_asset_is_main called!\n"); abort(); }
/* Generated stub for amount_asset_to_sat */
struct amount_sat amount_asset_to_sat(struct amount_asset *asset UNNEEDED)
{ fprintf(stderr, "amount_asset_to_sat called!\n"); abort(); }
/* Generated stub for amount_sat */
struct amount_sat amount_sat(u64 satoshis UNNEEDED)
{ fprintf(stderr, "amount_sat called!\n"); abort(); }
/* Generated stub for amount_sat_add */
 bool amount_sat_add(struct amount_sat *val UNNEEDED,
				       struct amount_sat a UNNEEDED,
				       struct amount_sat b UNNEEDED)
{ fprintf(stderr, "amount_sat_add called!\n"); abort(); }
/* Generated stub for amount_sat_eq */
bool amount_sat_eq(struct amount_sat a UNNEEDED, struct amount_sat b UNNEEDED)
{ fprintf(stderr, "amount_sat_eq called!\n"); abort(); }
/* Generated stub for amount_sat_greater_eq */
bool amount_sat_greater_eq(struct amount_sat a UNNEEDED, struct amount_sat b UNNEEDED)
{ fprintf(stderr, "amount_sat_greater_eq called!\n"); abort(); }
/* Generated stub for amount_sat_sub */
 bool amount_sat_sub(struct amount_sat *val UNNEEDED,
				       struct amount_sat a UNNEEDED,
				       struct amount_sat b UNNEEDED)
{ fprintf(stderr, "amount_sat_sub called!\n"); abort(); }
/* Generated stub for amount_sat_to_asset */
struct amount_asset amount_sat_to_asset(struct amount_sat *sat UNNEEDED, const u8 *asset UNNEEDED)
{ fprintf(stderr, "amount_sat_to_asset called!\n"); abort(); }
/* Generated stub for amount_tx_fee */
struct amount_sat amount_tx_fee(u32 fee_per_kw UNNEEDED, size_t weight UNNEEDED)
{ fprintf(stderr, "amount_tx_fee called!\n"); abort(); }
/* Generated stub for fromwire */
const u8 *fromwire(const u8 **cursor UNNEEDED, size_t *max UNNEEDED, void *copy UNNEEDED, size_t n UNNEEDED)
{ fprintf(stderr, "fromwire called!\n"); abort(); }
/* Generated stub for fromwire_amount_sat */
struct amount_sat fromwire_amount_sat(const u8 **cursor UNNEEDED, size_t *max UNNEEDED)
{ fprintf(stderr, "fromwire_amount_sat called!\n"); abort(); }
/* Generated stub for fromwire_bool */
bool fromwire_bool(const u8 **cursor UNNEEDED, size_t *max UNNEEDED)
{ fprintf(stderr, "fromwire_bool called!\n"); abort(); }
/* Generated stub for fromwire_fail */
void *fromwire_fail(const u8 **cursor UNNEEDED, size_t *max UNNEEDED)
{ fprintf(stderr, "fromwire_fail called!\n"); abort(); }
/* Generated stub for fromwire_secp256k1_ecdsa_signature */
void fromwire_secp256k1_ecdsa_signature(const u8 **cursor UNNEEDED, size_t *max UNNEEDED,
					secp256k1_ecdsa_signature *signature UNNEEDED)
{ fprintf(stderr, "fromwire_secp256k1_ecdsa_signature called!\n"); abort(); }
/* Generated stub for fromwire_sha256 */
void fromwire_sha256(const u8 **cursor UNNEEDED, size_t *max UNNEEDED, struct sha256 *sha256 UNNEEDED)
{ fprintf(stderr, "fromwire_sha256 called!\n"); abort(); }
/* Generated stub for fromwire_tal_arrn */
u8 *fromwire_tal_arrn(const tal_t *ctx UNNEEDED,
		       const u8 **cursor UNNEEDED, size_t *max UNNEEDED, size_t num UNNEEDED)
{ fprintf(stderr, "fromwire_tal_arrn called!\n"); abort(); }
/* Generated stub for fromwire_u16 */
u16 fromwire_u16(const u8 **cursor UNNEEDED, size_t *max UNNEEDED)
{ fprintf(stderr, "fromwire_u16 called!\n"); abort(); }
/* Generated stub for fromwire_u32 */
u32 fromwire_u32(const u8 **cursor UNNEEDED, size_t *max UNNEEDED)
{ fprintf(stderr, "fromwire_u32 called!\n"); abort(); }
/* Generated stub for fromwire_u64 */
u64 fromwire_u64(const u8 **cursor UNNEEDED, size_t *max UNNEEDED)
{ fprintf(stderr, "fromwire_u64 called!\n"); abort(); }
/* Generated stub for fromwire_u8 */
u8 fromwire_u8(const u8 **cursor UNNEEDED, size_t *max UNNEEDED)
{ fprintf(stderr, "fromwire_u8 called!\n"); abort(); }
/* Generated stub for fromwire_u8_array */
void fromwire_u8_array(const u8 **cursor UNNEEDED, size_t *max UNNEEDED, u8 *arr UNNEEDED, size_t num UNNEEDED)
{ fprintf(stderr, "fromwire_u8_array called!\n"); abort(); }
/* Generated stub for json_add_member */
void json_add_member(struct json_stream *js UNNEEDED,
		     const char *fieldname UNNEEDED,
		     bool quote UNNEEDED,
		     const char *fmt UNNEEDED, ...)
{ fprintf(stderr, "json_add_member called!\n"); abort(); }
/* Generated stub for json_member_direct */
char *json_member_direct(struct json_stream *js UNNEEDED,
			 const char *fieldname UNNEEDED, size_t extra UNNEEDED)
{ fprintf(stderr, "json_member_direct called!\n"); abort(); }
/* Generated stub for towire */
void towire(u8 **pptr UNNEEDED, const void *data UNNEEDED, size_t len UNNEEDED)
{ fprintf(stderr, "towire called!\n"); abort(); }
/* Generated stub for towire_amount_sat */
void towire_amount_sat(u8 **pptr UNNEEDED, const struct amount_sat sat UNNEEDED)
{ fprintf(stderr, "towire_amount_sat called!\n"); abort(); }
/* Generated stub for towire_bool */
void towire_bool(u8 **pptr UNNEEDED, bool v UNNEEDED)
{ fprintf(stderr, "towire_bool called!\n"); abort(); }
/* Generated stub for towire_secp256k1_ecdsa_signature */
void towire_secp256k1_ecdsa_signature(u8 **pptr UNNEEDED,
			      const secp256k1_ecdsa_signature *signature UNNEEDED)
{ fprintf(stderr, "towire_secp256k1_ecdsa_signature called!\n"); abort(); }
/* Generated stub for towire_sha256 */
void towire_sha256(u8 **pptr UNNEEDED, const struct sha256 *sha256 UNNEEDED)
{ fprintf(stderr, "towire_sha256 called!\n"); abort(); }
/* Generated stub for towire_u16 */
void towire_u16(u8 **pptr UNNEEDED, u16 v UNNEEDED)
{ fprintf(stderr, "towire_u16 called!\n"); abort(); }
/* Generated stub for towire_u32 */
void towire_u32(u8 **pptr UNNEEDED, u32 v UNNEEDED)
{ fprintf(stderr, "towire_u32 called!\n"); abort(); }
/* Generated stub for towire_u64 */
void towire_u64(u8 **pptr UNNEEDED, u64 v UNNEEDED)
{ fprintf(stderr, "towire_u64 called!\n"); abort(); }
/* Generated stub for towire_u8 */
void towire_u8(u8 **pptr UNNEEDED, u8 v UNNEEDED)
{ fprintf(stderr, "towire_u8 called!\n"); abort(); }
/* Generated stub for towire_u8_array */
void towire_u8_array(u8 **pptr UNNEEDED, const u8 *arr UNNEEDED, size_t num UNNEEDED)
{ fprintf(stderr, "towire_u8_array called!\n"); abort(); }
/* AUTOGENERATED MOCKS END */

static bool json_to_tok(const char *buffer, const jsmntok_t *tok,
			const jsmntok_t **t)
{
	*t = tok;
	return true;
}

int main(int argc, char *argv[])
{
	const jsmntok_t *toks, *t;
	char *buf;
	char *s;
	u32 u32val;
	u8 *hex;

	common_setup(argv[0]);

	buf = tal_strdup(tmpctx, "{\"1\":\"one\", \"2\":\"two\", \"3\":{\"three\": {\"deeper\": 17}}, \"arr\": [{\"1\": \"arrone\"}, 2, [3, 4]]}");
	toks = json_parse_simple(tmpctx, buf, strlen(buf));
	assert(toks);
	assert(toks->size == 4);

	/* These are direct matches, and they work. */
	assert(json_scan(buf, toks, "{1:one}"));
	assert(json_scan(buf, toks, "{1:one,2:two}"));
	assert(json_scan(buf, toks, "{2:two,1:one}"));
	assert(json_scan(buf, toks, "{2:two,1:one,3:{three:{deeper:17}}}"));
	assert(json_scan(buf, toks, "{2:two,1:one,3:{three:{deeper:17}},arr:[0:{1:arrone}]}"));
	assert(json_scan(buf, toks, "{2:two,1:one,3:{three:{deeper:17}},arr:[1:2]}"));
	assert(json_scan(buf, toks, "{2:two,1:one,3:{three:{deeper:17}},arr:[1:2,2:[0:3,1:4]]}"));

	/* These do not match */
	assert(!json_scan(buf, toks, "{2:one}"));
	assert(!json_scan(buf, toks, "{1:one,2:tw}"));
	assert(!json_scan(buf, toks, "{1:one,2:twoo}"));
	assert(!json_scan(buf, toks, "{4:one}"));
	assert(!json_scan(buf, toks, "{2:two,1:one,3:three}"));
	assert(!json_scan(buf, toks, "{3:{three:deeper}}"));
	assert(!json_scan(buf, toks, "{3:{three:{deeper:{}}}}"));
	assert(!json_scan(buf, toks, "{arr:{}}"));
	assert(!json_scan(buf, toks, "{arr:[0:1]}"));
	assert(!json_scan(buf, toks, "{arr:[4:0]}"));
	assert(!json_scan(buf, toks, "{arr:[0:{1:arrtwo}]}"));
	assert(!json_scan(buf, toks, "{arr:[1:3]}"));
	assert(!json_scan(buf, toks, "{arr:[2:[0:1]]}"));

	/* These capture simple values. */
	assert(json_scan(buf, toks, "{3:{three:{deeper:%}}}",
			 JSON_SCAN(json_to_number, &u32val)));
	assert(u32val == 17);
	assert(!json_scan(buf, toks, "{1:%}",
			 JSON_SCAN(json_to_number, &u32val)));
	assert(json_scan(buf, toks, "{1:%}",
			 JSON_SCAN_TAL(tmpctx, json_strdup, &s)));
	assert(tal_parent(s) == tmpctx);
	assert(streq(s, "one"));

	assert(!json_scan(buf, toks, "{1:%}",
			  JSON_SCAN_TAL(tmpctx, json_tok_bin_from_hex, &hex)));

	assert(json_scan(buf, toks, "{3:%}", JSON_SCAN(json_to_tok, &t)));
	assert(t == &toks[6]);

	assert(json_scan(buf, toks, "{arr:%}", JSON_SCAN(json_to_tok, &t)));
	assert(t == &toks[12]);

	assert(json_scan(buf, toks, "{arr:[1:%]}",
			 JSON_SCAN(json_to_number, &u32val)));
	assert(u32val == 2);

	assert(json_scan(buf, toks, "{arr:[2:[1:%]]}",
			 JSON_SCAN(json_to_number, &u32val)));
	assert(u32val == 4);

	common_shutdown();
}