X-Git-Url: https://git.ozlabs.org/?p=ccan;a=blobdiff_plain;f=ccan%2Fcrypto%2Fshachain%2Ftest%2Frun-badhash.c;h=742a36b8363df394439d38a6f177b9de893745cd;hp=bc9785120b3cacc794b3ae0445e16de1c919b866;hb=d23fb57c8e276090325162966b094ebf71e73e68;hpb=bb88463014092a5550ea4c51a037e12e49446722

diff --git a/ccan/crypto/shachain/test/run-badhash.c b/ccan/crypto/shachain/test/run-badhash.c
index bc978512..742a36b8 100644
--- a/ccan/crypto/shachain/test/run-badhash.c
+++ b/ccan/crypto/shachain/test/run-badhash.c
@@ -9,26 +9,27 @@ int main(void)
 {
 	struct sha256 seed;
 	struct shachain chain;
-	size_t i;
+	uint64_t i;
 
 	plan_tests(NUM_TESTS);
 
 	memset(&seed, 0xFF, sizeof(seed));
 	shachain_init(&chain);
 
-	for (i = 0; i < NUM_TESTS; i++) {
+	for (i = 0xFFFFFFFFFFFFFFFFULL;
+	     i > 0xFFFFFFFFFFFFFFFFULL - NUM_TESTS;
+	     i--) {
 		struct sha256 expect;
-		unsigned int num_known = chain.num_valid;
 
 		shachain_from_seed(&seed, i, &expect);
 		/* Screw it up. */
 		expect.u.u8[0]++;
 
-		/* Either it should fail, or it couldn't derive any others. */
+		/* Either it should fail, or it couldn't derive any others (ie. pos 0). */
 		if (shachain_add_hash(&chain, i, &expect)) {
-			ok1(chain.num_valid == num_known + 1);
+			ok1(chain.known[0].index == i);
 			/* Fix it up in-place */
-			chain.known[num_known].hash.u.u8[0]--;
+			chain.known[0].hash.u.u8[0]--;
 		} else {
 			expect.u.u8[0]--;
 			ok1(shachain_add_hash(&chain, i, &expect));