git/t/unit-tests/t-reftable-merged.c

547 lines
14 KiB
C

/*
Copyright 2020 Google LLC
Use of this source code is governed by a BSD-style
license that can be found in the LICENSE file or at
https://developers.google.com/open-source/licenses/bsd
*/
#include "test-lib.h"
#include "lib-reftable.h"
#include "reftable/blocksource.h"
#include "reftable/constants.h"
#include "reftable/merged.h"
#include "reftable/reader.h"
#include "reftable/reftable-error.h"
#include "reftable/reftable-merged.h"
#include "reftable/reftable-writer.h"
static struct reftable_merged_table *
merged_table_from_records(struct reftable_ref_record **refs,
struct reftable_block_source **source,
struct reftable_reader ***readers, const size_t *sizes,
struct reftable_buf *buf, const size_t n)
{
struct reftable_merged_table *mt = NULL;
struct reftable_write_options opts = {
.block_size = 256,
};
int err;
REFTABLE_CALLOC_ARRAY(*readers, n);
check(*readers != NULL);
REFTABLE_CALLOC_ARRAY(*source, n);
check(*source != NULL);
for (size_t i = 0; i < n; i++) {
t_reftable_write_to_buf(&buf[i], refs[i], sizes[i], NULL, 0, &opts);
block_source_from_buf(&(*source)[i], &buf[i]);
err = reftable_reader_new(&(*readers)[i], &(*source)[i],
"name");
check(!err);
}
err = reftable_merged_table_new(&mt, *readers, n, REFTABLE_HASH_SHA1);
check(!err);
return mt;
}
static void readers_destroy(struct reftable_reader **readers, const size_t n)
{
for (size_t i = 0; i < n; i++)
reftable_reader_decref(readers[i]);
reftable_free(readers);
}
static void t_merged_single_record(void)
{
struct reftable_ref_record r1[] = { {
.refname = (char *) "b",
.update_index = 1,
.value_type = REFTABLE_REF_VAL1,
.value.val1 = { 1, 2, 3, 0 },
} };
struct reftable_ref_record r2[] = { {
.refname = (char *) "a",
.update_index = 2,
.value_type = REFTABLE_REF_DELETION,
} };
struct reftable_ref_record r3[] = { {
.refname = (char *) "c",
.update_index = 3,
.value_type = REFTABLE_REF_DELETION,
} };
struct reftable_ref_record *refs[] = { r1, r2, r3 };
size_t sizes[] = { ARRAY_SIZE(r1), ARRAY_SIZE(r2), ARRAY_SIZE(r3) };
struct reftable_buf bufs[3] = { REFTABLE_BUF_INIT, REFTABLE_BUF_INIT, REFTABLE_BUF_INIT };
struct reftable_block_source *bs = NULL;
struct reftable_reader **readers = NULL;
struct reftable_merged_table *mt =
merged_table_from_records(refs, &bs, &readers, sizes, bufs, 3);
struct reftable_ref_record ref = { 0 };
struct reftable_iterator it = { 0 };
int err;
err = merged_table_init_iter(mt, &it, BLOCK_TYPE_REF);
check(!err);
err = reftable_iterator_seek_ref(&it, "a");
check(!err);
err = reftable_iterator_next_ref(&it, &ref);
check(!err);
check(reftable_ref_record_equal(&r2[0], &ref, REFTABLE_HASH_SIZE_SHA1));
reftable_ref_record_release(&ref);
reftable_iterator_destroy(&it);
readers_destroy(readers, 3);
reftable_merged_table_free(mt);
for (size_t i = 0; i < ARRAY_SIZE(bufs); i++)
reftable_buf_release(&bufs[i]);
reftable_free(bs);
}
static void t_merged_refs(void)
{
struct reftable_ref_record r1[] = {
{
.refname = (char *) "a",
.update_index = 1,
.value_type = REFTABLE_REF_VAL1,
.value.val1 = { 1 },
},
{
.refname = (char *) "b",
.update_index = 1,
.value_type = REFTABLE_REF_VAL1,
.value.val1 = { 1 },
},
{
.refname = (char *) "c",
.update_index = 1,
.value_type = REFTABLE_REF_VAL1,
.value.val1 = { 1 },
}
};
struct reftable_ref_record r2[] = { {
.refname = (char *) "a",
.update_index = 2,
.value_type = REFTABLE_REF_DELETION,
} };
struct reftable_ref_record r3[] = {
{
.refname = (char *) "c",
.update_index = 3,
.value_type = REFTABLE_REF_VAL1,
.value.val1 = { 2 },
},
{
.refname = (char *) "d",
.update_index = 3,
.value_type = REFTABLE_REF_VAL1,
.value.val1 = { 1 },
},
};
struct reftable_ref_record *want[] = {
&r2[0],
&r1[1],
&r3[0],
&r3[1],
};
struct reftable_ref_record *refs[] = { r1, r2, r3 };
size_t sizes[3] = { ARRAY_SIZE(r1), ARRAY_SIZE(r2), ARRAY_SIZE(r3) };
struct reftable_buf bufs[3] = { REFTABLE_BUF_INIT, REFTABLE_BUF_INIT, REFTABLE_BUF_INIT };
struct reftable_block_source *bs = NULL;
struct reftable_reader **readers = NULL;
struct reftable_merged_table *mt =
merged_table_from_records(refs, &bs, &readers, sizes, bufs, 3);
struct reftable_iterator it = { 0 };
int err;
struct reftable_ref_record *out = NULL;
size_t len = 0;
size_t cap = 0;
size_t i;
err = merged_table_init_iter(mt, &it, BLOCK_TYPE_REF);
check(!err);
err = reftable_iterator_seek_ref(&it, "a");
check(!err);
check_int(reftable_merged_table_hash_id(mt), ==, REFTABLE_HASH_SHA1);
check_int(reftable_merged_table_min_update_index(mt), ==, 1);
check_int(reftable_merged_table_max_update_index(mt), ==, 3);
while (len < 100) { /* cap loops/recursion. */
struct reftable_ref_record ref = { 0 };
int err = reftable_iterator_next_ref(&it, &ref);
if (err > 0)
break;
check(!REFTABLE_ALLOC_GROW(out, len + 1, cap));
out[len++] = ref;
}
reftable_iterator_destroy(&it);
check_int(ARRAY_SIZE(want), ==, len);
for (i = 0; i < len; i++)
check(reftable_ref_record_equal(want[i], &out[i],
REFTABLE_HASH_SIZE_SHA1));
for (i = 0; i < len; i++)
reftable_ref_record_release(&out[i]);
reftable_free(out);
for (i = 0; i < 3; i++)
reftable_buf_release(&bufs[i]);
readers_destroy(readers, 3);
reftable_merged_table_free(mt);
reftable_free(bs);
}
static void t_merged_seek_multiple_times(void)
{
struct reftable_ref_record r1[] = {
{
.refname = (char *) "a",
.update_index = 1,
.value_type = REFTABLE_REF_VAL1,
.value.val1 = { 1 },
},
{
.refname = (char *) "c",
.update_index = 1,
.value_type = REFTABLE_REF_VAL1,
.value.val1 = { 2 },
}
};
struct reftable_ref_record r2[] = {
{
.refname = (char *) "b",
.update_index = 2,
.value_type = REFTABLE_REF_VAL1,
.value.val1 = { 3 },
},
{
.refname = (char *) "d",
.update_index = 2,
.value_type = REFTABLE_REF_VAL1,
.value.val1 = { 4 },
},
};
struct reftable_ref_record *refs[] = {
r1, r2,
};
size_t sizes[] = {
ARRAY_SIZE(r1), ARRAY_SIZE(r2),
};
struct reftable_buf bufs[] = {
REFTABLE_BUF_INIT, REFTABLE_BUF_INIT,
};
struct reftable_block_source *sources = NULL;
struct reftable_reader **readers = NULL;
struct reftable_ref_record rec = { 0 };
struct reftable_iterator it = { 0 };
struct reftable_merged_table *mt;
mt = merged_table_from_records(refs, &sources, &readers, sizes, bufs, 2);
merged_table_init_iter(mt, &it, BLOCK_TYPE_REF);
for (size_t i = 0; i < 5; i++) {
int err = reftable_iterator_seek_ref(&it, "c");
check(!err);
err = reftable_iterator_next_ref(&it, &rec);
check(!err);
err = reftable_ref_record_equal(&rec, &r1[1], REFTABLE_HASH_SIZE_SHA1);
check(err == 1);
err = reftable_iterator_next_ref(&it, &rec);
check(!err);
err = reftable_ref_record_equal(&rec, &r2[1], REFTABLE_HASH_SIZE_SHA1);
check(err == 1);
err = reftable_iterator_next_ref(&it, &rec);
check(err > 0);
}
for (size_t i = 0; i < ARRAY_SIZE(bufs); i++)
reftable_buf_release(&bufs[i]);
readers_destroy(readers, ARRAY_SIZE(refs));
reftable_ref_record_release(&rec);
reftable_iterator_destroy(&it);
reftable_merged_table_free(mt);
reftable_free(sources);
}
static void t_merged_seek_multiple_times_without_draining(void)
{
struct reftable_ref_record r1[] = {
{
.refname = (char *) "a",
.update_index = 1,
.value_type = REFTABLE_REF_VAL1,
.value.val1 = { 1 },
},
{
.refname = (char *) "c",
.update_index = 1,
.value_type = REFTABLE_REF_VAL1,
.value.val1 = { 2 },
}
};
struct reftable_ref_record r2[] = {
{
.refname = (char *) "b",
.update_index = 2,
.value_type = REFTABLE_REF_VAL1,
.value.val1 = { 3 },
},
{
.refname = (char *) "d",
.update_index = 2,
.value_type = REFTABLE_REF_VAL1,
.value.val1 = { 4 },
},
};
struct reftable_ref_record *refs[] = {
r1, r2,
};
size_t sizes[] = {
ARRAY_SIZE(r1), ARRAY_SIZE(r2),
};
struct reftable_buf bufs[] = {
REFTABLE_BUF_INIT, REFTABLE_BUF_INIT,
};
struct reftable_block_source *sources = NULL;
struct reftable_reader **readers = NULL;
struct reftable_ref_record rec = { 0 };
struct reftable_iterator it = { 0 };
struct reftable_merged_table *mt;
int err;
mt = merged_table_from_records(refs, &sources, &readers, sizes, bufs, 2);
merged_table_init_iter(mt, &it, BLOCK_TYPE_REF);
err = reftable_iterator_seek_ref(&it, "b");
check(!err);
err = reftable_iterator_next_ref(&it, &rec);
check(!err);
err = reftable_ref_record_equal(&rec, &r2[0], REFTABLE_HASH_SIZE_SHA1);
check(err == 1);
err = reftable_iterator_seek_ref(&it, "a");
check(!err);
err = reftable_iterator_next_ref(&it, &rec);
check(!err);
err = reftable_ref_record_equal(&rec, &r1[0], REFTABLE_HASH_SIZE_SHA1);
check(err == 1);
for (size_t i = 0; i < ARRAY_SIZE(bufs); i++)
reftable_buf_release(&bufs[i]);
readers_destroy(readers, ARRAY_SIZE(refs));
reftable_ref_record_release(&rec);
reftable_iterator_destroy(&it);
reftable_merged_table_free(mt);
reftable_free(sources);
}
static struct reftable_merged_table *
merged_table_from_log_records(struct reftable_log_record **logs,
struct reftable_block_source **source,
struct reftable_reader ***readers, const size_t *sizes,
struct reftable_buf *buf, const size_t n)
{
struct reftable_merged_table *mt = NULL;
struct reftable_write_options opts = {
.block_size = 256,
.exact_log_message = 1,
};
int err;
REFTABLE_CALLOC_ARRAY(*readers, n);
check(*readers != NULL);
REFTABLE_CALLOC_ARRAY(*source, n);
check(*source != NULL);
for (size_t i = 0; i < n; i++) {
t_reftable_write_to_buf(&buf[i], NULL, 0, logs[i], sizes[i], &opts);
block_source_from_buf(&(*source)[i], &buf[i]);
err = reftable_reader_new(&(*readers)[i], &(*source)[i],
"name");
check(!err);
}
err = reftable_merged_table_new(&mt, *readers, n, REFTABLE_HASH_SHA1);
check(!err);
return mt;
}
static void t_merged_logs(void)
{
struct reftable_log_record r1[] = {
{
.refname = (char *) "a",
.update_index = 2,
.value_type = REFTABLE_LOG_UPDATE,
.value.update = {
.old_hash = { 2 },
/* deletion */
.name = (char *) "jane doe",
.email = (char *) "jane@invalid",
.message = (char *) "message2",
}
},
{
.refname = (char *) "a",
.update_index = 1,
.value_type = REFTABLE_LOG_UPDATE,
.value.update = {
.old_hash = { 1 },
.new_hash = { 2 },
.name = (char *) "jane doe",
.email = (char *) "jane@invalid",
.message = (char *) "message1",
}
},
};
struct reftable_log_record r2[] = {
{
.refname = (char *) "a",
.update_index = 3,
.value_type = REFTABLE_LOG_UPDATE,
.value.update = {
.new_hash = { 3 },
.name = (char *) "jane doe",
.email = (char *) "jane@invalid",
.message = (char *) "message3",
}
},
};
struct reftable_log_record r3[] = {
{
.refname = (char *) "a",
.update_index = 2,
.value_type = REFTABLE_LOG_DELETION,
},
};
struct reftable_log_record *want[] = {
&r2[0],
&r3[0],
&r1[1],
};
struct reftable_log_record *logs[] = { r1, r2, r3 };
size_t sizes[3] = { ARRAY_SIZE(r1), ARRAY_SIZE(r2), ARRAY_SIZE(r3) };
struct reftable_buf bufs[3] = { REFTABLE_BUF_INIT, REFTABLE_BUF_INIT, REFTABLE_BUF_INIT };
struct reftable_block_source *bs = NULL;
struct reftable_reader **readers = NULL;
struct reftable_merged_table *mt = merged_table_from_log_records(
logs, &bs, &readers, sizes, bufs, 3);
struct reftable_iterator it = { 0 };
int err;
struct reftable_log_record *out = NULL;
size_t len = 0;
size_t cap = 0;
size_t i;
err = merged_table_init_iter(mt, &it, BLOCK_TYPE_LOG);
check(!err);
err = reftable_iterator_seek_log(&it, "a");
check(!err);
check_int(reftable_merged_table_hash_id(mt), ==, REFTABLE_HASH_SHA1);
check_int(reftable_merged_table_min_update_index(mt), ==, 1);
check_int(reftable_merged_table_max_update_index(mt), ==, 3);
while (len < 100) { /* cap loops/recursion. */
struct reftable_log_record log = { 0 };
int err = reftable_iterator_next_log(&it, &log);
if (err > 0)
break;
check(!REFTABLE_ALLOC_GROW(out, len + 1, cap));
out[len++] = log;
}
reftable_iterator_destroy(&it);
check_int(ARRAY_SIZE(want), ==, len);
for (i = 0; i < len; i++)
check(reftable_log_record_equal(want[i], &out[i],
REFTABLE_HASH_SIZE_SHA1));
err = merged_table_init_iter(mt, &it, BLOCK_TYPE_LOG);
check(!err);
err = reftable_iterator_seek_log_at(&it, "a", 2);
check(!err);
reftable_log_record_release(&out[0]);
err = reftable_iterator_next_log(&it, &out[0]);
check(!err);
check(reftable_log_record_equal(&out[0], &r3[0], REFTABLE_HASH_SIZE_SHA1));
reftable_iterator_destroy(&it);
for (i = 0; i < len; i++)
reftable_log_record_release(&out[i]);
reftable_free(out);
for (i = 0; i < 3; i++)
reftable_buf_release(&bufs[i]);
readers_destroy(readers, 3);
reftable_merged_table_free(mt);
reftable_free(bs);
}
static void t_default_write_opts(void)
{
struct reftable_write_options opts = { 0 };
struct reftable_buf buf = REFTABLE_BUF_INIT;
struct reftable_writer *w = t_reftable_strbuf_writer(&buf, &opts);
struct reftable_ref_record rec = {
.refname = (char *) "master",
.update_index = 1,
};
int err;
struct reftable_block_source source = { 0 };
uint32_t hash_id;
struct reftable_reader *rd = NULL;
struct reftable_merged_table *merged = NULL;
reftable_writer_set_limits(w, 1, 1);
err = reftable_writer_add_ref(w, &rec);
check(!err);
err = reftable_writer_close(w);
check(!err);
reftable_writer_free(w);
block_source_from_buf(&source, &buf);
err = reftable_reader_new(&rd, &source, "filename");
check(!err);
hash_id = reftable_reader_hash_id(rd);
check_int(hash_id, ==, REFTABLE_HASH_SHA1);
err = reftable_merged_table_new(&merged, &rd, 1, REFTABLE_HASH_SHA256);
check_int(err, ==, REFTABLE_FORMAT_ERROR);
err = reftable_merged_table_new(&merged, &rd, 1, REFTABLE_HASH_SHA1);
check(!err);
reftable_reader_decref(rd);
reftable_merged_table_free(merged);
reftable_buf_release(&buf);
}
int cmd_main(int argc UNUSED, const char *argv[] UNUSED)
{
TEST(t_default_write_opts(), "merged table with default write opts");
TEST(t_merged_logs(), "merged table with multiple log updates for same ref");
TEST(t_merged_refs(), "merged table with multiple updates to same ref");
TEST(t_merged_seek_multiple_times(), "merged table can seek multiple times");
TEST(t_merged_seek_multiple_times_without_draining(), "merged table can seek multiple times without draining");
TEST(t_merged_single_record(), "ref occurring in only one record can be fetched");
return test_done();
}