On Wed, Aug 14, 2024 at 05:33:16PM +0530, Chandra Pratap wrote:
> @@ -101,9 +101,95 @@ static void t_block_read_write(void)
> reftable_record_release(&recs[i]);
> }
>
> +static void t_log_block_read_write(void)
> +{
> + const int header_off = 21;
> + struct reftable_record recs[30];
> + const size_t N = ARRAY_SIZE(recs);
> + const size_t block_size = 2048;
> + struct reftable_block block = { 0 };
> + struct block_writer bw = {
> + .last_key = STRBUF_INIT,
> + };
> + struct reftable_record rec = {
> + .type = BLOCK_TYPE_LOG,
> + };
> + size_t i = 0;
> + int n;
> + struct block_reader br = { 0 };
> + struct block_iter it = BLOCK_ITER_INIT;
> + struct strbuf want = STRBUF_INIT;
> +
> + REFTABLE_CALLOC_ARRAY(block.data, block_size);
> + block.len = block_size;
> + block.source = malloc_block_source();
> + block_writer_init(&bw, BLOCK_TYPE_LOG, block.data, block_size,
> + header_off, hash_size(GIT_SHA1_FORMAT_ID));
> +
> + for (i = 0; i < N; i++) {
> + rec.u.log.refname = xstrfmt("branch%02"PRIuMAX , (uintmax_t)i);
> + rec.u.log.update_index = i;
> + rec.u.log.value_type = REFTABLE_LOG_UPDATE;
> +
> + recs[i] = rec;
> + n = block_writer_add(&bw, &rec);
> + rec.u.log.refname = NULL;
> + rec.u.log.value_type = REFTABLE_LOG_DELETION;
> + check_int(n, ==, 0);
> + }
> +
> + n = block_writer_finish(&bw);
> + check_int(n, >, 0);
Do we maybe want to rename `n` to `ret`? That's way more customary in
our codebase.
> + block_writer_release(&bw);
> +
> + block_reader_init(&br, &block, header_off, block_size, GIT_SHA1_RAWSZ);
> +
> + block_iter_seek_start(&it, &br);
> +
> + for (i = 0; ; i++) {
> + int r = block_iter_next(&it, &rec);
> + check_int(r, >=, 0);
> + if (r > 0)
> + break;
We can also reuse `n` (or `ret`) here, right?
> + check(reftable_record_equal(&recs[i], &rec, GIT_SHA1_RAWSZ));
> + }
One thing that this loop doesn't verify is whether we actually got the
expected number of log records. It could be that the first iteration
already returns `r > 0`, which is not our expectation. So we should
likely add a check for `i == N` after the loop.
Patrick
