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-rw-r--r--reftable/stack_test.c979
1 files changed, 979 insertions, 0 deletions
diff --git a/reftable/stack_test.c b/reftable/stack_test.c
new file mode 100644
index 0000000..d0b7175
--- /dev/null
+++ b/reftable/stack_test.c
@@ -0,0 +1,979 @@
+/*
+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 "stack.h"
+
+#include "system.h"
+
+#include "reftable-reader.h"
+#include "merged.h"
+#include "basics.h"
+#include "constants.h"
+#include "record.h"
+#include "test_framework.h"
+#include "reftable-tests.h"
+#include "reader.h"
+
+#include <sys/types.h>
+#include <dirent.h>
+
+static void clear_dir(const char *dirname)
+{
+ struct strbuf path = STRBUF_INIT;
+ strbuf_addstr(&path, dirname);
+ remove_dir_recursively(&path, 0);
+ strbuf_release(&path);
+}
+
+static int count_dir_entries(const char *dirname)
+{
+ DIR *dir = opendir(dirname);
+ int len = 0;
+ struct dirent *d;
+ if (!dir)
+ return 0;
+
+ while ((d = readdir(dir))) {
+ if (!strcmp(d->d_name, "..") || !strcmp(d->d_name, "."))
+ continue;
+ len++;
+ }
+ closedir(dir);
+ return len;
+}
+
+/*
+ * Work linenumber into the tempdir, so we can see which tests forget to
+ * cleanup.
+ */
+static char *get_tmp_template(int linenumber)
+{
+ const char *tmp = getenv("TMPDIR");
+ static char template[1024];
+ snprintf(template, sizeof(template) - 1, "%s/stack_test-%d.XXXXXX",
+ tmp ? tmp : "/tmp", linenumber);
+ return template;
+}
+
+static char *get_tmp_dir(int linenumber)
+{
+ char *dir = get_tmp_template(linenumber);
+ EXPECT(mkdtemp(dir));
+ return dir;
+}
+
+static void test_read_file(void)
+{
+ char *fn = get_tmp_template(__LINE__);
+ int fd = mkstemp(fn);
+ char out[1024] = "line1\n\nline2\nline3";
+ int n, err;
+ char **names = NULL;
+ char *want[] = { "line1", "line2", "line3" };
+ int i = 0;
+
+ EXPECT(fd > 0);
+ n = write(fd, out, strlen(out));
+ EXPECT(n == strlen(out));
+ err = close(fd);
+ EXPECT(err >= 0);
+
+ err = read_lines(fn, &names);
+ EXPECT_ERR(err);
+
+ for (i = 0; names[i]; i++) {
+ EXPECT(0 == strcmp(want[i], names[i]));
+ }
+ free_names(names);
+ (void) remove(fn);
+}
+
+static void test_parse_names(void)
+{
+ char buf[] = "line\n";
+ char **names = NULL;
+ parse_names(buf, strlen(buf), &names);
+
+ EXPECT(NULL != names[0]);
+ EXPECT(0 == strcmp(names[0], "line"));
+ EXPECT(NULL == names[1]);
+ free_names(names);
+}
+
+static void test_names_equal(void)
+{
+ char *a[] = { "a", "b", "c", NULL };
+ char *b[] = { "a", "b", "d", NULL };
+ char *c[] = { "a", "b", NULL };
+
+ EXPECT(names_equal(a, a));
+ EXPECT(!names_equal(a, b));
+ EXPECT(!names_equal(a, c));
+}
+
+static int write_test_ref(struct reftable_writer *wr, void *arg)
+{
+ struct reftable_ref_record *ref = arg;
+ reftable_writer_set_limits(wr, ref->update_index, ref->update_index);
+ return reftable_writer_add_ref(wr, ref);
+}
+
+struct write_log_arg {
+ struct reftable_log_record *log;
+ uint64_t update_index;
+};
+
+static int write_test_log(struct reftable_writer *wr, void *arg)
+{
+ struct write_log_arg *wla = arg;
+
+ reftable_writer_set_limits(wr, wla->update_index, wla->update_index);
+ return reftable_writer_add_log(wr, wla->log);
+}
+
+static void test_reftable_stack_add_one(void)
+{
+ char *dir = get_tmp_dir(__LINE__);
+ struct strbuf scratch = STRBUF_INIT;
+ int mask = umask(002);
+ struct reftable_write_options cfg = {
+ .default_permissions = 0660,
+ };
+ struct reftable_stack *st = NULL;
+ int err;
+ struct reftable_ref_record ref = {
+ .refname = "HEAD",
+ .update_index = 1,
+ .value_type = REFTABLE_REF_SYMREF,
+ .value.symref = "master",
+ };
+ struct reftable_ref_record dest = { NULL };
+ struct stat stat_result = { 0 };
+ err = reftable_new_stack(&st, dir, cfg);
+ EXPECT_ERR(err);
+
+ err = reftable_stack_add(st, &write_test_ref, &ref);
+ EXPECT_ERR(err);
+
+ err = reftable_stack_read_ref(st, ref.refname, &dest);
+ EXPECT_ERR(err);
+ EXPECT(0 == strcmp("master", dest.value.symref));
+ EXPECT(st->readers_len > 0);
+
+ printf("testing print functionality:\n");
+ err = reftable_stack_print_directory(dir, GIT_SHA1_FORMAT_ID);
+ EXPECT_ERR(err);
+
+ err = reftable_stack_print_directory(dir, GIT_SHA256_FORMAT_ID);
+ EXPECT(err == REFTABLE_FORMAT_ERROR);
+
+#ifndef GIT_WINDOWS_NATIVE
+ strbuf_addstr(&scratch, dir);
+ strbuf_addstr(&scratch, "/tables.list");
+ err = stat(scratch.buf, &stat_result);
+ EXPECT(!err);
+ EXPECT((stat_result.st_mode & 0777) == cfg.default_permissions);
+
+ strbuf_reset(&scratch);
+ strbuf_addstr(&scratch, dir);
+ strbuf_addstr(&scratch, "/");
+ /* do not try at home; not an external API for reftable. */
+ strbuf_addstr(&scratch, st->readers[0]->name);
+ err = stat(scratch.buf, &stat_result);
+ EXPECT(!err);
+ EXPECT((stat_result.st_mode & 0777) == cfg.default_permissions);
+#else
+ (void) stat_result;
+#endif
+
+ reftable_ref_record_release(&dest);
+ reftable_stack_destroy(st);
+ strbuf_release(&scratch);
+ clear_dir(dir);
+ umask(mask);
+}
+
+static void test_reftable_stack_uptodate(void)
+{
+ struct reftable_write_options cfg = { 0 };
+ struct reftable_stack *st1 = NULL;
+ struct reftable_stack *st2 = NULL;
+ char *dir = get_tmp_dir(__LINE__);
+
+ int err;
+ struct reftable_ref_record ref1 = {
+ .refname = "HEAD",
+ .update_index = 1,
+ .value_type = REFTABLE_REF_SYMREF,
+ .value.symref = "master",
+ };
+ struct reftable_ref_record ref2 = {
+ .refname = "branch2",
+ .update_index = 2,
+ .value_type = REFTABLE_REF_SYMREF,
+ .value.symref = "master",
+ };
+
+
+ /* simulate multi-process access to the same stack
+ by creating two stacks for the same directory.
+ */
+ err = reftable_new_stack(&st1, dir, cfg);
+ EXPECT_ERR(err);
+
+ err = reftable_new_stack(&st2, dir, cfg);
+ EXPECT_ERR(err);
+
+ err = reftable_stack_add(st1, &write_test_ref, &ref1);
+ EXPECT_ERR(err);
+
+ err = reftable_stack_add(st2, &write_test_ref, &ref2);
+ EXPECT(err == REFTABLE_LOCK_ERROR);
+
+ err = reftable_stack_reload(st2);
+ EXPECT_ERR(err);
+
+ err = reftable_stack_add(st2, &write_test_ref, &ref2);
+ EXPECT_ERR(err);
+ reftable_stack_destroy(st1);
+ reftable_stack_destroy(st2);
+ clear_dir(dir);
+}
+
+static void test_reftable_stack_transaction_api(void)
+{
+ char *dir = get_tmp_dir(__LINE__);
+
+ struct reftable_write_options cfg = { 0 };
+ struct reftable_stack *st = NULL;
+ int err;
+ struct reftable_addition *add = NULL;
+
+ struct reftable_ref_record ref = {
+ .refname = "HEAD",
+ .update_index = 1,
+ .value_type = REFTABLE_REF_SYMREF,
+ .value.symref = "master",
+ };
+ struct reftable_ref_record dest = { NULL };
+
+
+ err = reftable_new_stack(&st, dir, cfg);
+ EXPECT_ERR(err);
+
+ reftable_addition_destroy(add);
+
+ err = reftable_stack_new_addition(&add, st);
+ EXPECT_ERR(err);
+
+ err = reftable_addition_add(add, &write_test_ref, &ref);
+ EXPECT_ERR(err);
+
+ err = reftable_addition_commit(add);
+ EXPECT_ERR(err);
+
+ reftable_addition_destroy(add);
+
+ err = reftable_stack_read_ref(st, ref.refname, &dest);
+ EXPECT_ERR(err);
+ EXPECT(REFTABLE_REF_SYMREF == dest.value_type);
+ EXPECT(0 == strcmp("master", dest.value.symref));
+
+ reftable_ref_record_release(&dest);
+ reftable_stack_destroy(st);
+ clear_dir(dir);
+}
+
+static void test_reftable_stack_validate_refname(void)
+{
+ struct reftable_write_options cfg = { 0 };
+ struct reftable_stack *st = NULL;
+ int err;
+ char *dir = get_tmp_dir(__LINE__);
+
+ int i;
+ struct reftable_ref_record ref = {
+ .refname = "a/b",
+ .update_index = 1,
+ .value_type = REFTABLE_REF_SYMREF,
+ .value.symref = "master",
+ };
+ char *additions[] = { "a", "a/b/c" };
+
+ err = reftable_new_stack(&st, dir, cfg);
+ EXPECT_ERR(err);
+
+ err = reftable_stack_add(st, &write_test_ref, &ref);
+ EXPECT_ERR(err);
+
+ for (i = 0; i < ARRAY_SIZE(additions); i++) {
+ struct reftable_ref_record ref = {
+ .refname = additions[i],
+ .update_index = 1,
+ .value_type = REFTABLE_REF_SYMREF,
+ .value.symref = "master",
+ };
+
+ err = reftable_stack_add(st, &write_test_ref, &ref);
+ EXPECT(err == REFTABLE_NAME_CONFLICT);
+ }
+
+ reftable_stack_destroy(st);
+ clear_dir(dir);
+}
+
+static int write_error(struct reftable_writer *wr, void *arg)
+{
+ return *((int *)arg);
+}
+
+static void test_reftable_stack_update_index_check(void)
+{
+ char *dir = get_tmp_dir(__LINE__);
+
+ struct reftable_write_options cfg = { 0 };
+ struct reftable_stack *st = NULL;
+ int err;
+ struct reftable_ref_record ref1 = {
+ .refname = "name1",
+ .update_index = 1,
+ .value_type = REFTABLE_REF_SYMREF,
+ .value.symref = "master",
+ };
+ struct reftable_ref_record ref2 = {
+ .refname = "name2",
+ .update_index = 1,
+ .value_type = REFTABLE_REF_SYMREF,
+ .value.symref = "master",
+ };
+
+ err = reftable_new_stack(&st, dir, cfg);
+ EXPECT_ERR(err);
+
+ err = reftable_stack_add(st, &write_test_ref, &ref1);
+ EXPECT_ERR(err);
+
+ err = reftable_stack_add(st, &write_test_ref, &ref2);
+ EXPECT(err == REFTABLE_API_ERROR);
+ reftable_stack_destroy(st);
+ clear_dir(dir);
+}
+
+static void test_reftable_stack_lock_failure(void)
+{
+ char *dir = get_tmp_dir(__LINE__);
+
+ struct reftable_write_options cfg = { 0 };
+ struct reftable_stack *st = NULL;
+ int err, i;
+
+ err = reftable_new_stack(&st, dir, cfg);
+ EXPECT_ERR(err);
+ for (i = -1; i != REFTABLE_EMPTY_TABLE_ERROR; i--) {
+ err = reftable_stack_add(st, &write_error, &i);
+ EXPECT(err == i);
+ }
+
+ reftable_stack_destroy(st);
+ clear_dir(dir);
+}
+
+static void test_reftable_stack_add(void)
+{
+ int i = 0;
+ int err = 0;
+ struct reftable_write_options cfg = {
+ .exact_log_message = 1,
+ };
+ struct reftable_stack *st = NULL;
+ char *dir = get_tmp_dir(__LINE__);
+
+ struct reftable_ref_record refs[2] = { { NULL } };
+ struct reftable_log_record logs[2] = { { NULL } };
+ int N = ARRAY_SIZE(refs);
+
+
+ err = reftable_new_stack(&st, dir, cfg);
+ EXPECT_ERR(err);
+ st->disable_auto_compact = 1;
+
+ for (i = 0; i < N; i++) {
+ char buf[256];
+ snprintf(buf, sizeof(buf), "branch%02d", i);
+ refs[i].refname = xstrdup(buf);
+ refs[i].update_index = i + 1;
+ refs[i].value_type = REFTABLE_REF_VAL1;
+ refs[i].value.val1 = reftable_malloc(GIT_SHA1_RAWSZ);
+ set_test_hash(refs[i].value.val1, i);
+
+ logs[i].refname = xstrdup(buf);
+ logs[i].update_index = N + i + 1;
+ logs[i].value_type = REFTABLE_LOG_UPDATE;
+
+ logs[i].value.update.new_hash = reftable_malloc(GIT_SHA1_RAWSZ);
+ logs[i].value.update.email = xstrdup("identity@invalid");
+ set_test_hash(logs[i].value.update.new_hash, i);
+ }
+
+ for (i = 0; i < N; i++) {
+ int err = reftable_stack_add(st, &write_test_ref, &refs[i]);
+ EXPECT_ERR(err);
+ }
+
+ for (i = 0; i < N; i++) {
+ struct write_log_arg arg = {
+ .log = &logs[i],
+ .update_index = reftable_stack_next_update_index(st),
+ };
+ int err = reftable_stack_add(st, &write_test_log, &arg);
+ EXPECT_ERR(err);
+ }
+
+ err = reftable_stack_compact_all(st, NULL);
+ EXPECT_ERR(err);
+
+ for (i = 0; i < N; i++) {
+ struct reftable_ref_record dest = { NULL };
+
+ int err = reftable_stack_read_ref(st, refs[i].refname, &dest);
+ EXPECT_ERR(err);
+ EXPECT(reftable_ref_record_equal(&dest, refs + i,
+ GIT_SHA1_RAWSZ));
+ reftable_ref_record_release(&dest);
+ }
+
+ for (i = 0; i < N; i++) {
+ struct reftable_log_record dest = { NULL };
+ int err = reftable_stack_read_log(st, refs[i].refname, &dest);
+ EXPECT_ERR(err);
+ EXPECT(reftable_log_record_equal(&dest, logs + i,
+ GIT_SHA1_RAWSZ));
+ reftable_log_record_release(&dest);
+ }
+
+ /* cleanup */
+ reftable_stack_destroy(st);
+ for (i = 0; i < N; i++) {
+ reftable_ref_record_release(&refs[i]);
+ reftable_log_record_release(&logs[i]);
+ }
+ clear_dir(dir);
+}
+
+static void test_reftable_stack_log_normalize(void)
+{
+ int err = 0;
+ struct reftable_write_options cfg = {
+ 0,
+ };
+ struct reftable_stack *st = NULL;
+ char *dir = get_tmp_dir(__LINE__);
+
+ uint8_t h1[GIT_SHA1_RAWSZ] = { 0x01 }, h2[GIT_SHA1_RAWSZ] = { 0x02 };
+
+ struct reftable_log_record input = { .refname = "branch",
+ .update_index = 1,
+ .value_type = REFTABLE_LOG_UPDATE,
+ .value = { .update = {
+ .new_hash = h1,
+ .old_hash = h2,
+ } } };
+ struct reftable_log_record dest = {
+ .update_index = 0,
+ };
+ struct write_log_arg arg = {
+ .log = &input,
+ .update_index = 1,
+ };
+
+ err = reftable_new_stack(&st, dir, cfg);
+ EXPECT_ERR(err);
+
+ input.value.update.message = "one\ntwo";
+ err = reftable_stack_add(st, &write_test_log, &arg);
+ EXPECT(err == REFTABLE_API_ERROR);
+
+ input.value.update.message = "one";
+ err = reftable_stack_add(st, &write_test_log, &arg);
+ EXPECT_ERR(err);
+
+ err = reftable_stack_read_log(st, input.refname, &dest);
+ EXPECT_ERR(err);
+ EXPECT(0 == strcmp(dest.value.update.message, "one\n"));
+
+ input.value.update.message = "two\n";
+ arg.update_index = 2;
+ err = reftable_stack_add(st, &write_test_log, &arg);
+ EXPECT_ERR(err);
+ err = reftable_stack_read_log(st, input.refname, &dest);
+ EXPECT_ERR(err);
+ EXPECT(0 == strcmp(dest.value.update.message, "two\n"));
+
+ /* cleanup */
+ reftable_stack_destroy(st);
+ reftable_log_record_release(&dest);
+ clear_dir(dir);
+}
+
+static void test_reftable_stack_tombstone(void)
+{
+ int i = 0;
+ char *dir = get_tmp_dir(__LINE__);
+
+ struct reftable_write_options cfg = { 0 };
+ struct reftable_stack *st = NULL;
+ int err;
+ struct reftable_ref_record refs[2] = { { NULL } };
+ struct reftable_log_record logs[2] = { { NULL } };
+ int N = ARRAY_SIZE(refs);
+ struct reftable_ref_record dest = { NULL };
+ struct reftable_log_record log_dest = { NULL };
+
+
+ err = reftable_new_stack(&st, dir, cfg);
+ EXPECT_ERR(err);
+
+ /* even entries add the refs, odd entries delete them. */
+ for (i = 0; i < N; i++) {
+ const char *buf = "branch";
+ refs[i].refname = xstrdup(buf);
+ refs[i].update_index = i + 1;
+ if (i % 2 == 0) {
+ refs[i].value_type = REFTABLE_REF_VAL1;
+ refs[i].value.val1 = reftable_malloc(GIT_SHA1_RAWSZ);
+ set_test_hash(refs[i].value.val1, i);
+ }
+
+ logs[i].refname = xstrdup(buf);
+ /* update_index is part of the key. */
+ logs[i].update_index = 42;
+ if (i % 2 == 0) {
+ logs[i].value_type = REFTABLE_LOG_UPDATE;
+ logs[i].value.update.new_hash =
+ reftable_malloc(GIT_SHA1_RAWSZ);
+ set_test_hash(logs[i].value.update.new_hash, i);
+ logs[i].value.update.email =
+ xstrdup("identity@invalid");
+ }
+ }
+ for (i = 0; i < N; i++) {
+ int err = reftable_stack_add(st, &write_test_ref, &refs[i]);
+ EXPECT_ERR(err);
+ }
+
+ for (i = 0; i < N; i++) {
+ struct write_log_arg arg = {
+ .log = &logs[i],
+ .update_index = reftable_stack_next_update_index(st),
+ };
+ int err = reftable_stack_add(st, &write_test_log, &arg);
+ EXPECT_ERR(err);
+ }
+
+ err = reftable_stack_read_ref(st, "branch", &dest);
+ EXPECT(err == 1);
+ reftable_ref_record_release(&dest);
+
+ err = reftable_stack_read_log(st, "branch", &log_dest);
+ EXPECT(err == 1);
+ reftable_log_record_release(&log_dest);
+
+ err = reftable_stack_compact_all(st, NULL);
+ EXPECT_ERR(err);
+
+ err = reftable_stack_read_ref(st, "branch", &dest);
+ EXPECT(err == 1);
+
+ err = reftable_stack_read_log(st, "branch", &log_dest);
+ EXPECT(err == 1);
+ reftable_ref_record_release(&dest);
+ reftable_log_record_release(&log_dest);
+
+ /* cleanup */
+ reftable_stack_destroy(st);
+ for (i = 0; i < N; i++) {
+ reftable_ref_record_release(&refs[i]);
+ reftable_log_record_release(&logs[i]);
+ }
+ clear_dir(dir);
+}
+
+static void test_reftable_stack_hash_id(void)
+{
+ char *dir = get_tmp_dir(__LINE__);
+
+ struct reftable_write_options cfg = { 0 };
+ struct reftable_stack *st = NULL;
+ int err;
+
+ struct reftable_ref_record ref = {
+ .refname = "master",
+ .value_type = REFTABLE_REF_SYMREF,
+ .value.symref = "target",
+ .update_index = 1,
+ };
+ struct reftable_write_options cfg32 = { .hash_id = GIT_SHA256_FORMAT_ID };
+ struct reftable_stack *st32 = NULL;
+ struct reftable_write_options cfg_default = { 0 };
+ struct reftable_stack *st_default = NULL;
+ struct reftable_ref_record dest = { NULL };
+
+ err = reftable_new_stack(&st, dir, cfg);
+ EXPECT_ERR(err);
+
+ err = reftable_stack_add(st, &write_test_ref, &ref);
+ EXPECT_ERR(err);
+
+ /* can't read it with the wrong hash ID. */
+ err = reftable_new_stack(&st32, dir, cfg32);
+ EXPECT(err == REFTABLE_FORMAT_ERROR);
+
+ /* check that we can read it back with default config too. */
+ err = reftable_new_stack(&st_default, dir, cfg_default);
+ EXPECT_ERR(err);
+
+ err = reftable_stack_read_ref(st_default, "master", &dest);
+ EXPECT_ERR(err);
+
+ EXPECT(reftable_ref_record_equal(&ref, &dest, GIT_SHA1_RAWSZ));
+ reftable_ref_record_release(&dest);
+ reftable_stack_destroy(st);
+ reftable_stack_destroy(st_default);
+ clear_dir(dir);
+}
+
+static void test_log2(void)
+{
+ EXPECT(1 == fastlog2(3));
+ EXPECT(2 == fastlog2(4));
+ EXPECT(2 == fastlog2(5));
+}
+
+static void test_sizes_to_segments(void)
+{
+ uint64_t sizes[] = { 2, 3, 4, 5, 7, 9 };
+ /* .................0 1 2 3 4 5 */
+
+ int seglen = 0;
+ struct segment *segs =
+ sizes_to_segments(&seglen, sizes, ARRAY_SIZE(sizes));
+ EXPECT(segs[2].log == 3);
+ EXPECT(segs[2].start == 5);
+ EXPECT(segs[2].end == 6);
+
+ EXPECT(segs[1].log == 2);
+ EXPECT(segs[1].start == 2);
+ EXPECT(segs[1].end == 5);
+ reftable_free(segs);
+}
+
+static void test_sizes_to_segments_empty(void)
+{
+ int seglen = 0;
+ struct segment *segs = sizes_to_segments(&seglen, NULL, 0);
+ EXPECT(seglen == 0);
+ reftable_free(segs);
+}
+
+static void test_sizes_to_segments_all_equal(void)
+{
+ uint64_t sizes[] = { 5, 5 };
+
+ int seglen = 0;
+ struct segment *segs =
+ sizes_to_segments(&seglen, sizes, ARRAY_SIZE(sizes));
+ EXPECT(seglen == 1);
+ EXPECT(segs[0].start == 0);
+ EXPECT(segs[0].end == 2);
+ reftable_free(segs);
+}
+
+static void test_suggest_compaction_segment(void)
+{
+ uint64_t sizes[] = { 128, 64, 17, 16, 9, 9, 9, 16, 16 };
+ /* .................0 1 2 3 4 5 6 */
+ struct segment min =
+ suggest_compaction_segment(sizes, ARRAY_SIZE(sizes));
+ EXPECT(min.start == 2);
+ EXPECT(min.end == 7);
+}
+
+static void test_suggest_compaction_segment_nothing(void)
+{
+ uint64_t sizes[] = { 64, 32, 16, 8, 4, 2 };
+ struct segment result =
+ suggest_compaction_segment(sizes, ARRAY_SIZE(sizes));
+ EXPECT(result.start == result.end);
+}
+
+static void test_reflog_expire(void)
+{
+ char *dir = get_tmp_dir(__LINE__);
+
+ struct reftable_write_options cfg = { 0 };
+ struct reftable_stack *st = NULL;
+ struct reftable_log_record logs[20] = { { NULL } };
+ int N = ARRAY_SIZE(logs) - 1;
+ int i = 0;
+ int err;
+ struct reftable_log_expiry_config expiry = {
+ .time = 10,
+ };
+ struct reftable_log_record log = { NULL };
+
+
+ err = reftable_new_stack(&st, dir, cfg);
+ EXPECT_ERR(err);
+
+ for (i = 1; i <= N; i++) {
+ char buf[256];
+ snprintf(buf, sizeof(buf), "branch%02d", i);
+
+ logs[i].refname = xstrdup(buf);
+ logs[i].update_index = i;
+ logs[i].value_type = REFTABLE_LOG_UPDATE;
+ logs[i].value.update.time = i;
+ logs[i].value.update.new_hash = reftable_malloc(GIT_SHA1_RAWSZ);
+ logs[i].value.update.email = xstrdup("identity@invalid");
+ set_test_hash(logs[i].value.update.new_hash, i);
+ }
+
+ for (i = 1; i <= N; i++) {
+ struct write_log_arg arg = {
+ .log = &logs[i],
+ .update_index = reftable_stack_next_update_index(st),
+ };
+ int err = reftable_stack_add(st, &write_test_log, &arg);
+ EXPECT_ERR(err);
+ }
+
+ err = reftable_stack_compact_all(st, NULL);
+ EXPECT_ERR(err);
+
+ err = reftable_stack_compact_all(st, &expiry);
+ EXPECT_ERR(err);
+
+ err = reftable_stack_read_log(st, logs[9].refname, &log);
+ EXPECT(err == 1);
+
+ err = reftable_stack_read_log(st, logs[11].refname, &log);
+ EXPECT_ERR(err);
+
+ expiry.min_update_index = 15;
+ err = reftable_stack_compact_all(st, &expiry);
+ EXPECT_ERR(err);
+
+ err = reftable_stack_read_log(st, logs[14].refname, &log);
+ EXPECT(err == 1);
+
+ err = reftable_stack_read_log(st, logs[16].refname, &log);
+ EXPECT_ERR(err);
+
+ /* cleanup */
+ reftable_stack_destroy(st);
+ for (i = 0; i <= N; i++) {
+ reftable_log_record_release(&logs[i]);
+ }
+ clear_dir(dir);
+ reftable_log_record_release(&log);
+}
+
+static int write_nothing(struct reftable_writer *wr, void *arg)
+{
+ reftable_writer_set_limits(wr, 1, 1);
+ return 0;
+}
+
+static void test_empty_add(void)
+{
+ struct reftable_write_options cfg = { 0 };
+ struct reftable_stack *st = NULL;
+ int err;
+ char *dir = get_tmp_dir(__LINE__);
+
+ struct reftable_stack *st2 = NULL;
+
+
+ err = reftable_new_stack(&st, dir, cfg);
+ EXPECT_ERR(err);
+
+ err = reftable_stack_add(st, &write_nothing, NULL);
+ EXPECT_ERR(err);
+
+ err = reftable_new_stack(&st2, dir, cfg);
+ EXPECT_ERR(err);
+ clear_dir(dir);
+ reftable_stack_destroy(st);
+ reftable_stack_destroy(st2);
+}
+
+static void test_reftable_stack_auto_compaction(void)
+{
+ struct reftable_write_options cfg = { 0 };
+ struct reftable_stack *st = NULL;
+ char *dir = get_tmp_dir(__LINE__);
+
+ int err, i;
+ int N = 100;
+
+ err = reftable_new_stack(&st, dir, cfg);
+ EXPECT_ERR(err);
+
+ st->disable_auto_compact = 1; /* call manually below for coverage. */
+ for (i = 0; i < N; i++) {
+ char name[100];
+ struct reftable_ref_record ref = {
+ .refname = name,
+ .update_index = reftable_stack_next_update_index(st),
+ .value_type = REFTABLE_REF_SYMREF,
+ .value.symref = "master",
+ };
+ snprintf(name, sizeof(name), "branch%04d", i);
+
+ err = reftable_stack_add(st, &write_test_ref, &ref);
+ EXPECT_ERR(err);
+
+ err = reftable_stack_auto_compact(st);
+ EXPECT_ERR(err);
+ EXPECT(i < 3 || st->merged->stack_len < 2 * fastlog2(i));
+ }
+
+ EXPECT(reftable_stack_compaction_stats(st)->entries_written <
+ (uint64_t)(N * fastlog2(N)));
+
+ reftable_stack_destroy(st);
+ clear_dir(dir);
+}
+
+static void test_reftable_stack_compaction_concurrent(void)
+{
+ struct reftable_write_options cfg = { 0 };
+ struct reftable_stack *st1 = NULL, *st2 = NULL;
+ char *dir = get_tmp_dir(__LINE__);
+
+ int err, i;
+ int N = 3;
+
+ err = reftable_new_stack(&st1, dir, cfg);
+ EXPECT_ERR(err);
+
+ for (i = 0; i < N; i++) {
+ char name[100];
+ struct reftable_ref_record ref = {
+ .refname = name,
+ .update_index = reftable_stack_next_update_index(st1),
+ .value_type = REFTABLE_REF_SYMREF,
+ .value.symref = "master",
+ };
+ snprintf(name, sizeof(name), "branch%04d", i);
+
+ err = reftable_stack_add(st1, &write_test_ref, &ref);
+ EXPECT_ERR(err);
+ }
+
+ err = reftable_new_stack(&st2, dir, cfg);
+ EXPECT_ERR(err);
+
+ err = reftable_stack_compact_all(st1, NULL);
+ EXPECT_ERR(err);
+
+ reftable_stack_destroy(st1);
+ reftable_stack_destroy(st2);
+
+ EXPECT(count_dir_entries(dir) == 2);
+ clear_dir(dir);
+}
+
+static void unclean_stack_close(struct reftable_stack *st)
+{
+ /* break abstraction boundary to simulate unclean shutdown. */
+ int i = 0;
+ for (; i < st->readers_len; i++) {
+ reftable_reader_free(st->readers[i]);
+ }
+ st->readers_len = 0;
+ FREE_AND_NULL(st->readers);
+}
+
+static void test_reftable_stack_compaction_concurrent_clean(void)
+{
+ struct reftable_write_options cfg = { 0 };
+ struct reftable_stack *st1 = NULL, *st2 = NULL, *st3 = NULL;
+ char *dir = get_tmp_dir(__LINE__);
+
+ int err, i;
+ int N = 3;
+
+ err = reftable_new_stack(&st1, dir, cfg);
+ EXPECT_ERR(err);
+
+ for (i = 0; i < N; i++) {
+ char name[100];
+ struct reftable_ref_record ref = {
+ .refname = name,
+ .update_index = reftable_stack_next_update_index(st1),
+ .value_type = REFTABLE_REF_SYMREF,
+ .value.symref = "master",
+ };
+ snprintf(name, sizeof(name), "branch%04d", i);
+
+ err = reftable_stack_add(st1, &write_test_ref, &ref);
+ EXPECT_ERR(err);
+ }
+
+ err = reftable_new_stack(&st2, dir, cfg);
+ EXPECT_ERR(err);
+
+ err = reftable_stack_compact_all(st1, NULL);
+ EXPECT_ERR(err);
+
+ unclean_stack_close(st1);
+ unclean_stack_close(st2);
+
+ err = reftable_new_stack(&st3, dir, cfg);
+ EXPECT_ERR(err);
+
+ err = reftable_stack_clean(st3);
+ EXPECT_ERR(err);
+ EXPECT(count_dir_entries(dir) == 2);
+
+ reftable_stack_destroy(st1);
+ reftable_stack_destroy(st2);
+ reftable_stack_destroy(st3);
+
+ clear_dir(dir);
+}
+
+int stack_test_main(int argc, const char *argv[])
+{
+ RUN_TEST(test_empty_add);
+ RUN_TEST(test_log2);
+ RUN_TEST(test_names_equal);
+ RUN_TEST(test_parse_names);
+ RUN_TEST(test_read_file);
+ RUN_TEST(test_reflog_expire);
+ RUN_TEST(test_reftable_stack_add);
+ RUN_TEST(test_reftable_stack_add_one);
+ RUN_TEST(test_reftable_stack_auto_compaction);
+ RUN_TEST(test_reftable_stack_compaction_concurrent);
+ RUN_TEST(test_reftable_stack_compaction_concurrent_clean);
+ RUN_TEST(test_reftable_stack_hash_id);
+ RUN_TEST(test_reftable_stack_lock_failure);
+ RUN_TEST(test_reftable_stack_log_normalize);
+ RUN_TEST(test_reftable_stack_tombstone);
+ RUN_TEST(test_reftable_stack_transaction_api);
+ RUN_TEST(test_reftable_stack_update_index_check);
+ RUN_TEST(test_reftable_stack_uptodate);
+ RUN_TEST(test_reftable_stack_validate_refname);
+ RUN_TEST(test_sizes_to_segments);
+ RUN_TEST(test_sizes_to_segments_all_equal);
+ RUN_TEST(test_sizes_to_segments_empty);
+ RUN_TEST(test_suggest_compaction_segment);
+ RUN_TEST(test_suggest_compaction_segment_nothing);
+ return 0;
+}
generated by cgit v1.2.3 (git 2.39.1) at 2024-07-20 18:15:26 +0000