0578f1e66a
Adapt callers to use generic hash context helpers instead of using the hash algorithm to update them. This makes the callsites easier to reason about and removes the possibility that the wrong hash algorithm is used to update the hash context's state. And as a nice side effect this also gets rid of a bunch of users of `the_hash_algo`. Signed-off-by: Patrick Steinhardt <ps@pks.im> Signed-off-by: Junio C Hamano <gitster@pobox.com>
110 lines
3.3 KiB
C
110 lines
3.3 KiB
C
#include "unit-test.h"
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#include "hex.h"
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#include "strbuf.h"
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static void check_hash_data(const void *data, size_t data_length,
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const char *expected_hashes[])
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{
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cl_assert(data != NULL);
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for (size_t i = 1; i < ARRAY_SIZE(hash_algos); i++) {
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struct git_hash_ctx ctx;
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unsigned char hash[GIT_MAX_HEXSZ];
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const struct git_hash_algo *algop = &hash_algos[i];
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algop->init_fn(&ctx);
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git_hash_update(&ctx, data, data_length);
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git_hash_final(hash, &ctx);
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cl_assert_equal_s(hash_to_hex_algop(hash,algop), expected_hashes[i - 1]);
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}
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}
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/* Works with a NUL terminated string. Doesn't work if it should contain a NUL character. */
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#define TEST_HASH_STR(data, expected_sha1, expected_sha256) do { \
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const char *expected_hashes[] = { expected_sha1, expected_sha256 }; \
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check_hash_data(data, strlen(data), expected_hashes); \
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} while (0)
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/* Only works with a literal string, useful when it contains a NUL character. */
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#define TEST_HASH_LITERAL(literal, expected_sha1, expected_sha256) do { \
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const char *expected_hashes[] = { expected_sha1, expected_sha256 }; \
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check_hash_data(literal, (sizeof(literal) - 1), expected_hashes); \
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} while (0)
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void test_hash__empty_string(void)
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{
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TEST_HASH_STR("",
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"da39a3ee5e6b4b0d3255bfef95601890afd80709",
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"e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855");
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}
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void test_hash__single_character(void)
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{
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TEST_HASH_STR("a",
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"86f7e437faa5a7fce15d1ddcb9eaeaea377667b8",
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"ca978112ca1bbdcafac231b39a23dc4da786eff8147c4e72b9807785afee48bb");
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}
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void test_hash__multi_character(void)
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{
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TEST_HASH_STR("abc",
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"a9993e364706816aba3e25717850c26c9cd0d89d",
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"ba7816bf8f01cfea414140de5dae2223b00361a396177a9cb410ff61f20015ad");
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}
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void test_hash__message_digest(void)
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{
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TEST_HASH_STR("message digest",
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"c12252ceda8be8994d5fa0290a47231c1d16aae3",
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"f7846f55cf23e14eebeab5b4e1550cad5b509e3348fbc4efa3a1413d393cb650");
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}
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void test_hash__alphabet(void)
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{
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TEST_HASH_STR("abcdefghijklmnopqrstuvwxyz",
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"32d10c7b8cf96570ca04ce37f2a19d84240d3a89",
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"71c480df93d6ae2f1efad1447c66c9525e316218cf51fc8d9ed832f2daf18b73");
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}
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void test_hash__aaaaaaaaaa_100000(void)
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{
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struct strbuf aaaaaaaaaa_100000 = STRBUF_INIT;
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strbuf_addstrings(&aaaaaaaaaa_100000, "aaaaaaaaaa", 100000);
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TEST_HASH_STR(aaaaaaaaaa_100000.buf,
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"34aa973cd4c4daa4f61eeb2bdbad27316534016f",
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"cdc76e5c9914fb9281a1c7e284d73e67f1809a48a497200e046d39ccc7112cd0");
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strbuf_release(&aaaaaaaaaa_100000);
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}
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void test_hash__alphabet_100000(void)
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{
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struct strbuf alphabet_100000 = STRBUF_INIT;
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strbuf_addstrings(&alphabet_100000, "abcdefghijklmnopqrstuvwxyz", 100000);
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TEST_HASH_STR(alphabet_100000.buf,
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"e7da7c55b3484fdf52aebec9cbe7b85a98f02fd4",
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"e406ba321ca712ad35a698bf0af8d61fc4dc40eca6bdcea4697962724ccbde35");
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strbuf_release(&alphabet_100000);
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}
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void test_hash__zero_blob_literal(void)
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{
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TEST_HASH_LITERAL("blob 0\0",
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"e69de29bb2d1d6434b8b29ae775ad8c2e48c5391",
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"473a0f4c3be8a93681a267e3b1e9a7dcda1185436fe141f7749120a303721813");
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}
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void test_hash__three_blob_literal(void)
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{
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TEST_HASH_LITERAL("blob 3\0abc",
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"f2ba8f84ab5c1bce84a7b441cb1959cfc7093b7f",
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"c1cf6e465077930e88dc5136641d402f72a229ddd996f627d60e9639eaba35a6");
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}
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void test_hash__zero_tree_literal(void)
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{
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TEST_HASH_LITERAL("tree 0\0",
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"4b825dc642cb6eb9a060e54bf8d69288fbee4904",
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"6ef19b41225c5369f1c104d45d8d85efa9b057b53b14b4b9b939dd74decc5321");
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}
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