reftable: reftable file level tests
With support for reading and writing files in place, we can construct files (in memory) and attempt to read them back. Because some sections of the format are optional (eg. indices, log entries), we have to exercise this code using multiple sizes of input data Signed-off-by: Han-Wen Nienhuys <hanwen@google.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Han-Wen Nienhuys
Junio C Hamano
parent
46bc0e731a
commit
ffc97f1a9e
1
Makefile
1
Makefile
@ -2473,6 +2473,7 @@ REFTABLE_OBJS += reftable/writer.o
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REFTABLE_TEST_OBJS += reftable/basics_test.o
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REFTABLE_TEST_OBJS += reftable/block_test.o
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REFTABLE_TEST_OBJS += reftable/record_test.o
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REFTABLE_TEST_OBJS += reftable/readwrite_test.o
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REFTABLE_TEST_OBJS += reftable/test_framework.o
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REFTABLE_TEST_OBJS += reftable/tree_test.o
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652
reftable/readwrite_test.c
Normal file
652
reftable/readwrite_test.c
Normal file
@ -0,0 +1,652 @@
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/*
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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_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_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);
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}
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static void test_table_read_write_seek_linear_sha256(void)
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{
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test_table_read_write_seek(0, GIT_SHA256_FORMAT_ID);
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}
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static void test_table_read_write_seek_index(void)
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{
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test_table_read_write_seek(1, GIT_SHA1_FORMAT_ID);
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}
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static void test_table_refs_for(int indexed)
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{
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int N = 50;
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char **want_names = reftable_calloc(sizeof(char *) * (N + 1));
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int want_names_len = 0;
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uint8_t want_hash[GIT_SHA1_RAWSZ];
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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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int n;
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int err;
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struct reftable_reader rd;
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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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struct reftable_iterator it = { NULL };
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int j;
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set_test_hash(want_hash, 4);
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for (i = 0; i < N; i++) {
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uint8_t hash[GIT_SHA1_RAWSZ];
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char fill[51] = { 0 };
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char name[100];
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uint8_t hash1[GIT_SHA1_RAWSZ];
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uint8_t hash2[GIT_SHA1_RAWSZ];
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struct reftable_ref_record ref = { NULL };
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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]);
|
||||
printf("%d\n", err);
|
||||
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_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);
|
||||
return 0;
|
||||
}
|
||||
@ -14,7 +14,7 @@ int block_test_main(int argc, const char **argv);
|
||||
int merged_test_main(int argc, const char **argv);
|
||||
int record_test_main(int argc, const char **argv);
|
||||
int refname_test_main(int argc, const char **argv);
|
||||
int reftable_test_main(int argc, const char **argv);
|
||||
int readwrite_test_main(int argc, const char **argv);
|
||||
int stack_test_main(int argc, const char **argv);
|
||||
int tree_test_main(int argc, const char **argv);
|
||||
int reftable_dump_main(int argc, char *const *argv);
|
||||
|
||||
@ -6,6 +6,7 @@ int cmd__reftable(int argc, const char **argv)
|
||||
basics_test_main(argc, argv);
|
||||
block_test_main(argc, argv);
|
||||
record_test_main(argc, argv);
|
||||
readwrite_test_main(argc, argv);
|
||||
tree_test_main(argc, argv);
|
||||
return 0;
|
||||
}
|
||||
|
||||
Loading…
Reference in New Issue
Block a user