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add resizeable scratch space API

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Alignment support by Pieter Wuille.
This commit is contained in:
Andrew Poelstra
2017-07-22 18:03:17 +00:00
committed by Jonas Nick
parent 6ad5cdb42a
commit 548de42ecf
7 changed files with 205 additions and 0 deletions
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36
src/tests.c
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@@ -248,6 +248,41 @@ void run_context_tests(void) {
secp256k1_context_destroy(NULL);
}
void run_scratch_tests(void) {
int32_t ecount = 0;
secp256k1_context *none = secp256k1_context_create(SECP256K1_CONTEXT_NONE);
secp256k1_scratch_space *scratch;
/* Test public API */
secp256k1_context_set_illegal_callback(none, counting_illegal_callback_fn, &ecount);
scratch = secp256k1_scratch_space_create(none, 100, 10);
CHECK(scratch == NULL);
CHECK(ecount == 1);
scratch = secp256k1_scratch_space_create(none, 100, 100);
CHECK(scratch != NULL);
CHECK(ecount == 1);
secp256k1_scratch_space_destroy(scratch);
scratch = secp256k1_scratch_space_create(none, 100, 1000);
CHECK(scratch != NULL);
CHECK(ecount == 1);
/* Test internal API */
CHECK(secp256k1_scratch_max_allocation(scratch, 0) == 1000);
CHECK(secp256k1_scratch_max_allocation(scratch, 1) < 1000);
CHECK(secp256k1_scratch_resize(scratch, 50, 1) == 1); /* no-op */
CHECK(secp256k1_scratch_resize(scratch, 200, 1) == 1);
CHECK(secp256k1_scratch_resize(scratch, 950, 1) == 1);
CHECK(secp256k1_scratch_resize(scratch, 1000, 1) == 0);
CHECK(secp256k1_scratch_resize(scratch, 2000, 1) == 0);
CHECK(secp256k1_scratch_max_allocation(scratch, 0) == 1000);
/* cleanup */
secp256k1_scratch_space_destroy(scratch);
secp256k1_context_destroy(none);
}
/***** HASH TESTS *****/
void run_sha256_tests(void) {
@@ -4451,6 +4486,7 @@ int main(int argc, char **argv) {
/* initialize */
run_context_tests();
run_scratch_tests();
ctx = secp256k1_context_create(SECP256K1_CONTEXT_SIGN | SECP256K1_CONTEXT_VERIFY);
if (secp256k1_rand_bits(1)) {
secp256k1_rand256(run32);