зеркало из https://github.com/microsoft/git.git
753 строки
18 KiB
C
753 строки
18 KiB
C
/*
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Copyright 2020 Google LLC
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Use of this source code is governed by a BSD-style
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license that can be found in the LICENSE file or at
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https://developers.google.com/open-source/licenses/bsd
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*/
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#include "system.h"
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#include "basics.h"
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#include "block.h"
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#include "blocksource.h"
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#include "constants.h"
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#include "reader.h"
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#include "record.h"
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#include "test_framework.h"
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#include "reftable-tests.h"
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#include "reftable-writer.h"
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static const int update_index = 5;
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static void test_buffer(void)
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{
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struct strbuf buf = STRBUF_INIT;
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struct reftable_block_source source = { NULL };
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struct reftable_block out = { NULL };
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int n;
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uint8_t in[] = "hello";
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strbuf_add(&buf, in, sizeof(in));
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block_source_from_strbuf(&source, &buf);
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EXPECT(block_source_size(&source) == 6);
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n = block_source_read_block(&source, &out, 0, sizeof(in));
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EXPECT(n == sizeof(in));
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EXPECT(!memcmp(in, out.data, n));
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reftable_block_done(&out);
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n = block_source_read_block(&source, &out, 1, 2);
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EXPECT(n == 2);
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EXPECT(!memcmp(out.data, "el", 2));
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reftable_block_done(&out);
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block_source_close(&source);
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strbuf_release(&buf);
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}
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static void write_table(char ***names, struct strbuf *buf, int N,
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int block_size, uint32_t hash_id)
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{
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struct reftable_write_options opts = {
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.block_size = block_size,
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.hash_id = hash_id,
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};
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struct reftable_writer *w =
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reftable_new_writer(&strbuf_add_void, buf, &opts);
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struct reftable_ref_record ref = { NULL };
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int i = 0, n;
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struct reftable_log_record log = { NULL };
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const struct reftable_stats *stats = NULL;
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*names = reftable_calloc(sizeof(char *) * (N + 1));
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reftable_writer_set_limits(w, update_index, update_index);
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for (i = 0; i < N; i++) {
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uint8_t hash[GIT_SHA256_RAWSZ] = { 0 };
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char name[100];
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int n;
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set_test_hash(hash, i);
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snprintf(name, sizeof(name), "refs/heads/branch%02d", i);
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ref.refname = name;
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ref.update_index = update_index;
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ref.value_type = REFTABLE_REF_VAL1;
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ref.value.val1 = hash;
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(*names)[i] = xstrdup(name);
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n = reftable_writer_add_ref(w, &ref);
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EXPECT(n == 0);
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}
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for (i = 0; i < N; i++) {
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uint8_t hash[GIT_SHA256_RAWSZ] = { 0 };
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char name[100];
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int n;
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set_test_hash(hash, i);
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snprintf(name, sizeof(name), "refs/heads/branch%02d", i);
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log.refname = name;
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log.update_index = update_index;
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log.value_type = REFTABLE_LOG_UPDATE;
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log.value.update.new_hash = hash;
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log.value.update.message = "message";
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n = reftable_writer_add_log(w, &log);
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EXPECT(n == 0);
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}
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n = reftable_writer_close(w);
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EXPECT(n == 0);
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stats = writer_stats(w);
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for (i = 0; i < stats->ref_stats.blocks; i++) {
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int off = i * opts.block_size;
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if (off == 0) {
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off = header_size(
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(hash_id == GIT_SHA256_FORMAT_ID) ? 2 : 1);
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}
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EXPECT(buf->buf[off] == 'r');
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}
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EXPECT(stats->log_stats.blocks > 0);
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reftable_writer_free(w);
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}
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static void test_log_buffer_size(void)
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{
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struct strbuf buf = STRBUF_INIT;
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struct reftable_write_options opts = {
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.block_size = 4096,
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};
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int err;
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int i;
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struct reftable_log_record
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log = { .refname = "refs/heads/master",
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.update_index = 0xa,
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.value_type = REFTABLE_LOG_UPDATE,
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.value = { .update = {
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.name = "Han-Wen Nienhuys",
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.email = "hanwen@google.com",
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.tz_offset = 100,
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.time = 0x5e430672,
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.message = "commit: 9\n",
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} } };
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struct reftable_writer *w =
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reftable_new_writer(&strbuf_add_void, &buf, &opts);
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/* This tests buffer extension for log compression. Must use a random
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hash, to ensure that the compressed part is larger than the original.
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*/
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uint8_t hash1[GIT_SHA1_RAWSZ], hash2[GIT_SHA1_RAWSZ];
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for (i = 0; i < GIT_SHA1_RAWSZ; i++) {
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hash1[i] = (uint8_t)(rand() % 256);
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hash2[i] = (uint8_t)(rand() % 256);
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}
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log.value.update.old_hash = hash1;
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log.value.update.new_hash = hash2;
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reftable_writer_set_limits(w, update_index, update_index);
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err = reftable_writer_add_log(w, &log);
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EXPECT_ERR(err);
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err = reftable_writer_close(w);
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EXPECT_ERR(err);
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reftable_writer_free(w);
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strbuf_release(&buf);
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}
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static void test_log_overflow(void)
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{
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struct strbuf buf = STRBUF_INIT;
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char msg[256] = { 0 };
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struct reftable_write_options opts = {
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.block_size = ARRAY_SIZE(msg),
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};
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int err;
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struct reftable_log_record
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log = { .refname = "refs/heads/master",
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.update_index = 0xa,
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.value_type = REFTABLE_LOG_UPDATE,
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.value = { .update = {
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.name = "Han-Wen Nienhuys",
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.email = "hanwen@google.com",
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.tz_offset = 100,
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.time = 0x5e430672,
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.message = msg,
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} } };
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struct reftable_writer *w =
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reftable_new_writer(&strbuf_add_void, &buf, &opts);
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uint8_t hash1[GIT_SHA1_RAWSZ] = {1}, hash2[GIT_SHA1_RAWSZ] = { 2 };
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memset(msg, 'x', sizeof(msg) - 1);
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log.value.update.old_hash = hash1;
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log.value.update.new_hash = hash2;
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reftable_writer_set_limits(w, update_index, update_index);
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err = reftable_writer_add_log(w, &log);
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EXPECT(err == REFTABLE_ENTRY_TOO_BIG_ERROR);
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reftable_writer_free(w);
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strbuf_release(&buf);
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}
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static void test_log_write_read(void)
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{
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int N = 2;
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char **names = reftable_calloc(sizeof(char *) * (N + 1));
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int err;
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struct reftable_write_options opts = {
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.block_size = 256,
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};
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struct reftable_ref_record ref = { NULL };
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int i = 0;
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struct reftable_log_record log = { NULL };
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int n;
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struct reftable_iterator it = { NULL };
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struct reftable_reader rd = { NULL };
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struct reftable_block_source source = { NULL };
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struct strbuf buf = STRBUF_INIT;
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struct reftable_writer *w =
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reftable_new_writer(&strbuf_add_void, &buf, &opts);
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const struct reftable_stats *stats = NULL;
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reftable_writer_set_limits(w, 0, N);
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for (i = 0; i < N; i++) {
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char name[256];
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struct reftable_ref_record ref = { NULL };
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snprintf(name, sizeof(name), "b%02d%0*d", i, 130, 7);
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names[i] = xstrdup(name);
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ref.refname = name;
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ref.update_index = i;
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err = reftable_writer_add_ref(w, &ref);
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EXPECT_ERR(err);
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}
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for (i = 0; i < N; i++) {
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uint8_t hash1[GIT_SHA1_RAWSZ], hash2[GIT_SHA1_RAWSZ];
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struct reftable_log_record log = { NULL };
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set_test_hash(hash1, i);
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set_test_hash(hash2, i + 1);
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log.refname = names[i];
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log.update_index = i;
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log.value_type = REFTABLE_LOG_UPDATE;
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log.value.update.old_hash = hash1;
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log.value.update.new_hash = hash2;
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err = reftable_writer_add_log(w, &log);
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EXPECT_ERR(err);
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}
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n = reftable_writer_close(w);
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EXPECT(n == 0);
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stats = writer_stats(w);
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EXPECT(stats->log_stats.blocks > 0);
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reftable_writer_free(w);
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w = NULL;
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block_source_from_strbuf(&source, &buf);
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err = init_reader(&rd, &source, "file.log");
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EXPECT_ERR(err);
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err = reftable_reader_seek_ref(&rd, &it, names[N - 1]);
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EXPECT_ERR(err);
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err = reftable_iterator_next_ref(&it, &ref);
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EXPECT_ERR(err);
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/* end of iteration. */
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err = reftable_iterator_next_ref(&it, &ref);
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EXPECT(0 < err);
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reftable_iterator_destroy(&it);
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reftable_ref_record_release(&ref);
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err = reftable_reader_seek_log(&rd, &it, "");
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EXPECT_ERR(err);
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i = 0;
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while (1) {
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int err = reftable_iterator_next_log(&it, &log);
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if (err > 0) {
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break;
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}
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EXPECT_ERR(err);
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EXPECT_STREQ(names[i], log.refname);
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EXPECT(i == log.update_index);
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i++;
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reftable_log_record_release(&log);
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}
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EXPECT(i == N);
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reftable_iterator_destroy(&it);
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/* cleanup. */
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strbuf_release(&buf);
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free_names(names);
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reader_close(&rd);
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}
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static void test_log_zlib_corruption(void)
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{
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struct reftable_write_options opts = {
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.block_size = 256,
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};
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struct reftable_iterator it = { 0 };
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struct reftable_reader rd = { 0 };
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struct reftable_block_source source = { 0 };
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struct strbuf buf = STRBUF_INIT;
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struct reftable_writer *w =
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reftable_new_writer(&strbuf_add_void, &buf, &opts);
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const struct reftable_stats *stats = NULL;
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uint8_t hash1[GIT_SHA1_RAWSZ] = { 1 };
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uint8_t hash2[GIT_SHA1_RAWSZ] = { 2 };
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char message[100] = { 0 };
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int err, i, n;
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struct reftable_log_record log = {
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.refname = "refname",
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.value_type = REFTABLE_LOG_UPDATE,
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.value = {
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.update = {
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.new_hash = hash1,
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.old_hash = hash2,
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.name = "My Name",
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.email = "myname@invalid",
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.message = message,
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},
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},
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};
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for (i = 0; i < sizeof(message) - 1; i++)
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message[i] = (uint8_t)(rand() % 64 + ' ');
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reftable_writer_set_limits(w, 1, 1);
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err = reftable_writer_add_log(w, &log);
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EXPECT_ERR(err);
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n = reftable_writer_close(w);
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EXPECT(n == 0);
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stats = writer_stats(w);
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EXPECT(stats->log_stats.blocks > 0);
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reftable_writer_free(w);
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w = NULL;
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/* corrupt the data. */
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buf.buf[50] ^= 0x99;
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block_source_from_strbuf(&source, &buf);
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err = init_reader(&rd, &source, "file.log");
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EXPECT_ERR(err);
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err = reftable_reader_seek_log(&rd, &it, "refname");
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EXPECT(err == REFTABLE_ZLIB_ERROR);
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reftable_iterator_destroy(&it);
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/* cleanup. */
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strbuf_release(&buf);
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reader_close(&rd);
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}
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static void test_table_read_write_sequential(void)
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{
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char **names;
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struct strbuf buf = STRBUF_INIT;
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int N = 50;
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struct reftable_iterator it = { NULL };
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struct reftable_block_source source = { NULL };
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struct reftable_reader rd = { NULL };
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int err = 0;
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int j = 0;
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write_table(&names, &buf, N, 256, GIT_SHA1_FORMAT_ID);
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block_source_from_strbuf(&source, &buf);
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err = init_reader(&rd, &source, "file.ref");
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EXPECT_ERR(err);
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err = reftable_reader_seek_ref(&rd, &it, "");
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EXPECT_ERR(err);
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while (1) {
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struct reftable_ref_record ref = { NULL };
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int r = reftable_iterator_next_ref(&it, &ref);
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EXPECT(r >= 0);
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if (r > 0) {
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break;
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}
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EXPECT(0 == strcmp(names[j], ref.refname));
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EXPECT(update_index == ref.update_index);
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j++;
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reftable_ref_record_release(&ref);
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}
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EXPECT(j == N);
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reftable_iterator_destroy(&it);
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strbuf_release(&buf);
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free_names(names);
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reader_close(&rd);
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}
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static void test_table_write_small_table(void)
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{
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char **names;
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struct strbuf buf = STRBUF_INIT;
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int N = 1;
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write_table(&names, &buf, N, 4096, GIT_SHA1_FORMAT_ID);
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EXPECT(buf.len < 200);
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strbuf_release(&buf);
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free_names(names);
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}
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static void test_table_read_api(void)
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{
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char **names;
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struct strbuf buf = STRBUF_INIT;
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int N = 50;
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struct reftable_reader rd = { NULL };
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struct reftable_block_source source = { NULL };
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int err;
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int i;
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struct reftable_log_record log = { NULL };
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struct reftable_iterator it = { NULL };
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write_table(&names, &buf, N, 256, GIT_SHA1_FORMAT_ID);
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block_source_from_strbuf(&source, &buf);
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err = init_reader(&rd, &source, "file.ref");
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EXPECT_ERR(err);
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err = reftable_reader_seek_ref(&rd, &it, names[0]);
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EXPECT_ERR(err);
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err = reftable_iterator_next_log(&it, &log);
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EXPECT(err == REFTABLE_API_ERROR);
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strbuf_release(&buf);
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for (i = 0; i < N; i++) {
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reftable_free(names[i]);
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}
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reftable_iterator_destroy(&it);
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reftable_free(names);
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reader_close(&rd);
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strbuf_release(&buf);
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}
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static void test_table_read_write_seek(int index, int hash_id)
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{
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char **names;
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struct strbuf buf = STRBUF_INIT;
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int N = 50;
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struct reftable_reader rd = { NULL };
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struct reftable_block_source source = { NULL };
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int err;
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int i = 0;
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struct reftable_iterator it = { NULL };
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struct strbuf pastLast = STRBUF_INIT;
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struct reftable_ref_record ref = { NULL };
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write_table(&names, &buf, N, 256, hash_id);
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block_source_from_strbuf(&source, &buf);
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err = init_reader(&rd, &source, "file.ref");
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EXPECT_ERR(err);
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EXPECT(hash_id == reftable_reader_hash_id(&rd));
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if (!index) {
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rd.ref_offsets.index_offset = 0;
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} else {
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EXPECT(rd.ref_offsets.index_offset > 0);
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}
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for (i = 1; i < N; i++) {
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int err = reftable_reader_seek_ref(&rd, &it, names[i]);
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EXPECT_ERR(err);
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err = reftable_iterator_next_ref(&it, &ref);
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EXPECT_ERR(err);
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EXPECT(0 == strcmp(names[i], ref.refname));
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EXPECT(REFTABLE_REF_VAL1 == ref.value_type);
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EXPECT(i == ref.value.val1[0]);
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reftable_ref_record_release(&ref);
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reftable_iterator_destroy(&it);
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}
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strbuf_addstr(&pastLast, names[N - 1]);
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strbuf_addstr(&pastLast, "/");
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err = reftable_reader_seek_ref(&rd, &it, pastLast.buf);
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if (err == 0) {
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struct reftable_ref_record ref = { NULL };
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int err = reftable_iterator_next_ref(&it, &ref);
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EXPECT(err > 0);
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} else {
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EXPECT(err > 0);
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}
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strbuf_release(&pastLast);
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reftable_iterator_destroy(&it);
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strbuf_release(&buf);
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for (i = 0; i < N; i++) {
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reftable_free(names[i]);
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}
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reftable_free(names);
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reader_close(&rd);
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}
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static void test_table_read_write_seek_linear(void)
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{
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test_table_read_write_seek(0, GIT_SHA1_FORMAT_ID);
|
|
}
|
|
|
|
static void test_table_read_write_seek_linear_sha256(void)
|
|
{
|
|
test_table_read_write_seek(0, GIT_SHA256_FORMAT_ID);
|
|
}
|
|
|
|
static void test_table_read_write_seek_index(void)
|
|
{
|
|
test_table_read_write_seek(1, GIT_SHA1_FORMAT_ID);
|
|
}
|
|
|
|
static void test_table_refs_for(int indexed)
|
|
{
|
|
int N = 50;
|
|
char **want_names = reftable_calloc(sizeof(char *) * (N + 1));
|
|
int want_names_len = 0;
|
|
uint8_t want_hash[GIT_SHA1_RAWSZ];
|
|
|
|
struct reftable_write_options opts = {
|
|
.block_size = 256,
|
|
};
|
|
struct reftable_ref_record ref = { NULL };
|
|
int i = 0;
|
|
int n;
|
|
int err;
|
|
struct reftable_reader rd;
|
|
struct reftable_block_source source = { NULL };
|
|
|
|
struct strbuf buf = STRBUF_INIT;
|
|
struct reftable_writer *w =
|
|
reftable_new_writer(&strbuf_add_void, &buf, &opts);
|
|
|
|
struct reftable_iterator it = { NULL };
|
|
int j;
|
|
|
|
set_test_hash(want_hash, 4);
|
|
|
|
for (i = 0; i < N; i++) {
|
|
uint8_t hash[GIT_SHA1_RAWSZ];
|
|
char fill[51] = { 0 };
|
|
char name[100];
|
|
uint8_t hash1[GIT_SHA1_RAWSZ];
|
|
uint8_t hash2[GIT_SHA1_RAWSZ];
|
|
struct reftable_ref_record ref = { NULL };
|
|
|
|
memset(hash, i, sizeof(hash));
|
|
memset(fill, 'x', 50);
|
|
/* Put the variable part in the start */
|
|
snprintf(name, sizeof(name), "br%02d%s", i, fill);
|
|
name[40] = 0;
|
|
ref.refname = name;
|
|
|
|
set_test_hash(hash1, i / 4);
|
|
set_test_hash(hash2, 3 + i / 4);
|
|
ref.value_type = REFTABLE_REF_VAL2;
|
|
ref.value.val2.value = hash1;
|
|
ref.value.val2.target_value = hash2;
|
|
|
|
/* 80 bytes / entry, so 3 entries per block. Yields 17
|
|
*/
|
|
/* blocks. */
|
|
n = reftable_writer_add_ref(w, &ref);
|
|
EXPECT(n == 0);
|
|
|
|
if (!memcmp(hash1, want_hash, GIT_SHA1_RAWSZ) ||
|
|
!memcmp(hash2, want_hash, GIT_SHA1_RAWSZ)) {
|
|
want_names[want_names_len++] = xstrdup(name);
|
|
}
|
|
}
|
|
|
|
n = reftable_writer_close(w);
|
|
EXPECT(n == 0);
|
|
|
|
reftable_writer_free(w);
|
|
w = NULL;
|
|
|
|
block_source_from_strbuf(&source, &buf);
|
|
|
|
err = init_reader(&rd, &source, "file.ref");
|
|
EXPECT_ERR(err);
|
|
if (!indexed) {
|
|
rd.obj_offsets.is_present = 0;
|
|
}
|
|
|
|
err = reftable_reader_seek_ref(&rd, &it, "");
|
|
EXPECT_ERR(err);
|
|
reftable_iterator_destroy(&it);
|
|
|
|
err = reftable_reader_refs_for(&rd, &it, want_hash);
|
|
EXPECT_ERR(err);
|
|
|
|
j = 0;
|
|
while (1) {
|
|
int err = reftable_iterator_next_ref(&it, &ref);
|
|
EXPECT(err >= 0);
|
|
if (err > 0) {
|
|
break;
|
|
}
|
|
|
|
EXPECT(j < want_names_len);
|
|
EXPECT(0 == strcmp(ref.refname, want_names[j]));
|
|
j++;
|
|
reftable_ref_record_release(&ref);
|
|
}
|
|
EXPECT(j == want_names_len);
|
|
|
|
strbuf_release(&buf);
|
|
free_names(want_names);
|
|
reftable_iterator_destroy(&it);
|
|
reader_close(&rd);
|
|
}
|
|
|
|
static void test_table_refs_for_no_index(void)
|
|
{
|
|
test_table_refs_for(0);
|
|
}
|
|
|
|
static void test_table_refs_for_obj_index(void)
|
|
{
|
|
test_table_refs_for(1);
|
|
}
|
|
|
|
static void test_write_empty_table(void)
|
|
{
|
|
struct reftable_write_options opts = { 0 };
|
|
struct strbuf buf = STRBUF_INIT;
|
|
struct reftable_writer *w =
|
|
reftable_new_writer(&strbuf_add_void, &buf, &opts);
|
|
struct reftable_block_source source = { NULL };
|
|
struct reftable_reader *rd = NULL;
|
|
struct reftable_ref_record rec = { NULL };
|
|
struct reftable_iterator it = { NULL };
|
|
int err;
|
|
|
|
reftable_writer_set_limits(w, 1, 1);
|
|
|
|
err = reftable_writer_close(w);
|
|
EXPECT(err == REFTABLE_EMPTY_TABLE_ERROR);
|
|
reftable_writer_free(w);
|
|
|
|
EXPECT(buf.len == header_size(1) + footer_size(1));
|
|
|
|
block_source_from_strbuf(&source, &buf);
|
|
|
|
err = reftable_new_reader(&rd, &source, "filename");
|
|
EXPECT_ERR(err);
|
|
|
|
err = reftable_reader_seek_ref(rd, &it, "");
|
|
EXPECT_ERR(err);
|
|
|
|
err = reftable_iterator_next_ref(&it, &rec);
|
|
EXPECT(err > 0);
|
|
|
|
reftable_iterator_destroy(&it);
|
|
reftable_reader_free(rd);
|
|
strbuf_release(&buf);
|
|
}
|
|
|
|
static void test_write_key_order(void)
|
|
{
|
|
struct reftable_write_options opts = { 0 };
|
|
struct strbuf buf = STRBUF_INIT;
|
|
struct reftable_writer *w =
|
|
reftable_new_writer(&strbuf_add_void, &buf, &opts);
|
|
struct reftable_ref_record refs[2] = {
|
|
{
|
|
.refname = "b",
|
|
.update_index = 1,
|
|
.value_type = REFTABLE_REF_SYMREF,
|
|
.value = {
|
|
.symref = "target",
|
|
},
|
|
}, {
|
|
.refname = "a",
|
|
.update_index = 1,
|
|
.value_type = REFTABLE_REF_SYMREF,
|
|
.value = {
|
|
.symref = "target",
|
|
},
|
|
}
|
|
};
|
|
int err;
|
|
|
|
reftable_writer_set_limits(w, 1, 1);
|
|
err = reftable_writer_add_ref(w, &refs[0]);
|
|
EXPECT_ERR(err);
|
|
err = reftable_writer_add_ref(w, &refs[1]);
|
|
EXPECT(err == REFTABLE_API_ERROR);
|
|
reftable_writer_close(w);
|
|
reftable_writer_free(w);
|
|
strbuf_release(&buf);
|
|
}
|
|
|
|
static void test_corrupt_table_empty(void)
|
|
{
|
|
struct strbuf buf = STRBUF_INIT;
|
|
struct reftable_block_source source = { NULL };
|
|
struct reftable_reader rd = { NULL };
|
|
int err;
|
|
|
|
block_source_from_strbuf(&source, &buf);
|
|
err = init_reader(&rd, &source, "file.log");
|
|
EXPECT(err == REFTABLE_FORMAT_ERROR);
|
|
}
|
|
|
|
static void test_corrupt_table(void)
|
|
{
|
|
uint8_t zeros[1024] = { 0 };
|
|
struct strbuf buf = STRBUF_INIT;
|
|
struct reftable_block_source source = { NULL };
|
|
struct reftable_reader rd = { NULL };
|
|
int err;
|
|
strbuf_add(&buf, zeros, sizeof(zeros));
|
|
|
|
block_source_from_strbuf(&source, &buf);
|
|
err = init_reader(&rd, &source, "file.log");
|
|
EXPECT(err == REFTABLE_FORMAT_ERROR);
|
|
strbuf_release(&buf);
|
|
}
|
|
|
|
int readwrite_test_main(int argc, const char *argv[])
|
|
{
|
|
RUN_TEST(test_log_zlib_corruption);
|
|
RUN_TEST(test_corrupt_table);
|
|
RUN_TEST(test_corrupt_table_empty);
|
|
RUN_TEST(test_log_write_read);
|
|
RUN_TEST(test_write_key_order);
|
|
RUN_TEST(test_table_read_write_seek_linear_sha256);
|
|
RUN_TEST(test_log_buffer_size);
|
|
RUN_TEST(test_table_write_small_table);
|
|
RUN_TEST(test_buffer);
|
|
RUN_TEST(test_table_read_api);
|
|
RUN_TEST(test_table_read_write_sequential);
|
|
RUN_TEST(test_table_read_write_seek_linear);
|
|
RUN_TEST(test_table_read_write_seek_index);
|
|
RUN_TEST(test_table_refs_for_no_index);
|
|
RUN_TEST(test_table_refs_for_obj_index);
|
|
RUN_TEST(test_write_empty_table);
|
|
RUN_TEST(test_log_overflow);
|
|
return 0;
|
|
}
|