2 Copyright 2020 Google LLC
4 Use of this source code is governed by a BSD-style
5 license that can be found in the LICENSE file or at
6 https://developers.google.com/open-source/licenses/bsd
13 #include "reftable-reader.h"
17 #include "test_framework.h"
18 #include "reftable-tests.h"
21 #include <sys/types.h>
24 static void clear_dir(const char *dirname
)
26 struct strbuf path
= STRBUF_INIT
;
27 strbuf_addstr(&path
, dirname
);
28 remove_dir_recursively(&path
, 0);
29 strbuf_release(&path
);
32 static int count_dir_entries(const char *dirname
)
34 DIR *dir
= opendir(dirname
);
40 while ((d
= readdir(dir
))) {
41 if (!strcmp(d
->d_name
, "..") || !strcmp(d
->d_name
, "."))
50 * Work linenumber into the tempdir, so we can see which tests forget to
53 static char *get_tmp_template(int linenumber
)
55 const char *tmp
= getenv("TMPDIR");
56 static char template[1024];
57 snprintf(template, sizeof(template) - 1, "%s/stack_test-%d.XXXXXX",
58 tmp
? tmp
: "/tmp", linenumber
);
62 static char *get_tmp_dir(int linenumber
)
64 char *dir
= get_tmp_template(linenumber
);
69 static void test_read_file(void)
71 char *fn
= get_tmp_template(__LINE__
);
73 char out
[1024] = "line1\n\nline2\nline3";
76 char *want
[] = { "line1", "line2", "line3" };
80 n
= write_in_full(fd
, out
, strlen(out
));
81 EXPECT(n
== strlen(out
));
85 err
= read_lines(fn
, &names
);
88 for (i
= 0; names
[i
]; i
++) {
89 EXPECT(0 == strcmp(want
[i
], names
[i
]));
95 static void test_parse_names(void)
97 char buf
[] = "line\n";
99 parse_names(buf
, strlen(buf
), &names
);
101 EXPECT(NULL
!= names
[0]);
102 EXPECT(0 == strcmp(names
[0], "line"));
103 EXPECT(NULL
== names
[1]);
107 static void test_names_equal(void)
109 char *a
[] = { "a", "b", "c", NULL
};
110 char *b
[] = { "a", "b", "d", NULL
};
111 char *c
[] = { "a", "b", NULL
};
113 EXPECT(names_equal(a
, a
));
114 EXPECT(!names_equal(a
, b
));
115 EXPECT(!names_equal(a
, c
));
118 static int write_test_ref(struct reftable_writer
*wr
, void *arg
)
120 struct reftable_ref_record
*ref
= arg
;
121 reftable_writer_set_limits(wr
, ref
->update_index
, ref
->update_index
);
122 return reftable_writer_add_ref(wr
, ref
);
125 struct write_log_arg
{
126 struct reftable_log_record
*log
;
127 uint64_t update_index
;
130 static int write_test_log(struct reftable_writer
*wr
, void *arg
)
132 struct write_log_arg
*wla
= arg
;
134 reftable_writer_set_limits(wr
, wla
->update_index
, wla
->update_index
);
135 return reftable_writer_add_log(wr
, wla
->log
);
138 static void test_reftable_stack_add_one(void)
140 char *dir
= get_tmp_dir(__LINE__
);
141 struct strbuf scratch
= STRBUF_INIT
;
142 int mask
= umask(002);
143 struct reftable_write_options cfg
= {
144 .default_permissions
= 0660,
146 struct reftable_stack
*st
= NULL
;
148 struct reftable_ref_record ref
= {
151 .value_type
= REFTABLE_REF_SYMREF
,
152 .value
.symref
= "master",
154 struct reftable_ref_record dest
= { NULL
};
155 struct stat stat_result
= { 0 };
156 err
= reftable_new_stack(&st
, dir
, cfg
);
159 err
= reftable_stack_add(st
, &write_test_ref
, &ref
);
162 err
= reftable_stack_read_ref(st
, ref
.refname
, &dest
);
164 EXPECT(0 == strcmp("master", dest
.value
.symref
));
165 EXPECT(st
->readers_len
> 0);
167 printf("testing print functionality:\n");
168 err
= reftable_stack_print_directory(dir
, GIT_SHA1_FORMAT_ID
);
171 err
= reftable_stack_print_directory(dir
, GIT_SHA256_FORMAT_ID
);
172 EXPECT(err
== REFTABLE_FORMAT_ERROR
);
174 #ifndef GIT_WINDOWS_NATIVE
175 strbuf_addstr(&scratch
, dir
);
176 strbuf_addstr(&scratch
, "/tables.list");
177 err
= stat(scratch
.buf
, &stat_result
);
179 EXPECT((stat_result
.st_mode
& 0777) == cfg
.default_permissions
);
181 strbuf_reset(&scratch
);
182 strbuf_addstr(&scratch
, dir
);
183 strbuf_addstr(&scratch
, "/");
184 /* do not try at home; not an external API for reftable. */
185 strbuf_addstr(&scratch
, st
->readers
[0]->name
);
186 err
= stat(scratch
.buf
, &stat_result
);
188 EXPECT((stat_result
.st_mode
& 0777) == cfg
.default_permissions
);
193 reftable_ref_record_release(&dest
);
194 reftable_stack_destroy(st
);
195 strbuf_release(&scratch
);
200 static void test_reftable_stack_uptodate(void)
202 struct reftable_write_options cfg
= { 0 };
203 struct reftable_stack
*st1
= NULL
;
204 struct reftable_stack
*st2
= NULL
;
205 char *dir
= get_tmp_dir(__LINE__
);
208 struct reftable_ref_record ref1
= {
211 .value_type
= REFTABLE_REF_SYMREF
,
212 .value
.symref
= "master",
214 struct reftable_ref_record ref2
= {
215 .refname
= "branch2",
217 .value_type
= REFTABLE_REF_SYMREF
,
218 .value
.symref
= "master",
222 /* simulate multi-process access to the same stack
223 by creating two stacks for the same directory.
225 err
= reftable_new_stack(&st1
, dir
, cfg
);
228 err
= reftable_new_stack(&st2
, dir
, cfg
);
231 err
= reftable_stack_add(st1
, &write_test_ref
, &ref1
);
234 err
= reftable_stack_add(st2
, &write_test_ref
, &ref2
);
235 EXPECT(err
== REFTABLE_LOCK_ERROR
);
237 err
= reftable_stack_reload(st2
);
240 err
= reftable_stack_add(st2
, &write_test_ref
, &ref2
);
242 reftable_stack_destroy(st1
);
243 reftable_stack_destroy(st2
);
247 static void test_reftable_stack_transaction_api(void)
249 char *dir
= get_tmp_dir(__LINE__
);
251 struct reftable_write_options cfg
= { 0 };
252 struct reftable_stack
*st
= NULL
;
254 struct reftable_addition
*add
= NULL
;
256 struct reftable_ref_record ref
= {
259 .value_type
= REFTABLE_REF_SYMREF
,
260 .value
.symref
= "master",
262 struct reftable_ref_record dest
= { NULL
};
265 err
= reftable_new_stack(&st
, dir
, cfg
);
268 reftable_addition_destroy(add
);
270 err
= reftable_stack_new_addition(&add
, st
);
273 err
= reftable_addition_add(add
, &write_test_ref
, &ref
);
276 err
= reftable_addition_commit(add
);
279 reftable_addition_destroy(add
);
281 err
= reftable_stack_read_ref(st
, ref
.refname
, &dest
);
283 EXPECT(REFTABLE_REF_SYMREF
== dest
.value_type
);
284 EXPECT(0 == strcmp("master", dest
.value
.symref
));
286 reftable_ref_record_release(&dest
);
287 reftable_stack_destroy(st
);
291 static void test_reftable_stack_transaction_api_performs_auto_compaction(void)
293 char *dir
= get_tmp_dir(__LINE__
);
294 struct reftable_write_options cfg
= {0};
295 struct reftable_addition
*add
= NULL
;
296 struct reftable_stack
*st
= NULL
;
299 err
= reftable_new_stack(&st
, dir
, cfg
);
302 for (i
= 0; i
<= n
; i
++) {
303 struct reftable_ref_record ref
= {
304 .update_index
= reftable_stack_next_update_index(st
),
305 .value_type
= REFTABLE_REF_SYMREF
,
306 .value
.symref
= "master",
310 snprintf(name
, sizeof(name
), "branch%04d", i
);
314 * Disable auto-compaction for all but the last runs. Like this
315 * we can ensure that we indeed honor this setting and have
316 * better control over when exactly auto compaction runs.
318 st
->disable_auto_compact
= i
!= n
;
320 err
= reftable_stack_new_addition(&add
, st
);
323 err
= reftable_addition_add(add
, &write_test_ref
, &ref
);
326 err
= reftable_addition_commit(add
);
329 reftable_addition_destroy(add
);
332 * The stack length should grow continuously for all runs where
333 * auto compaction is disabled. When enabled, we should merge
334 * all tables in the stack.
337 EXPECT(st
->merged
->stack_len
== i
+ 1);
339 EXPECT(st
->merged
->stack_len
== 1);
342 reftable_stack_destroy(st
);
346 static void test_reftable_stack_validate_refname(void)
348 struct reftable_write_options cfg
= { 0 };
349 struct reftable_stack
*st
= NULL
;
351 char *dir
= get_tmp_dir(__LINE__
);
354 struct reftable_ref_record ref
= {
357 .value_type
= REFTABLE_REF_SYMREF
,
358 .value
.symref
= "master",
360 char *additions
[] = { "a", "a/b/c" };
362 err
= reftable_new_stack(&st
, dir
, cfg
);
365 err
= reftable_stack_add(st
, &write_test_ref
, &ref
);
368 for (i
= 0; i
< ARRAY_SIZE(additions
); i
++) {
369 struct reftable_ref_record ref
= {
370 .refname
= additions
[i
],
372 .value_type
= REFTABLE_REF_SYMREF
,
373 .value
.symref
= "master",
376 err
= reftable_stack_add(st
, &write_test_ref
, &ref
);
377 EXPECT(err
== REFTABLE_NAME_CONFLICT
);
380 reftable_stack_destroy(st
);
384 static int write_error(struct reftable_writer
*wr
, void *arg
)
386 return *((int *)arg
);
389 static void test_reftable_stack_update_index_check(void)
391 char *dir
= get_tmp_dir(__LINE__
);
393 struct reftable_write_options cfg
= { 0 };
394 struct reftable_stack
*st
= NULL
;
396 struct reftable_ref_record ref1
= {
399 .value_type
= REFTABLE_REF_SYMREF
,
400 .value
.symref
= "master",
402 struct reftable_ref_record ref2
= {
405 .value_type
= REFTABLE_REF_SYMREF
,
406 .value
.symref
= "master",
409 err
= reftable_new_stack(&st
, dir
, cfg
);
412 err
= reftable_stack_add(st
, &write_test_ref
, &ref1
);
415 err
= reftable_stack_add(st
, &write_test_ref
, &ref2
);
416 EXPECT(err
== REFTABLE_API_ERROR
);
417 reftable_stack_destroy(st
);
421 static void test_reftable_stack_lock_failure(void)
423 char *dir
= get_tmp_dir(__LINE__
);
425 struct reftable_write_options cfg
= { 0 };
426 struct reftable_stack
*st
= NULL
;
429 err
= reftable_new_stack(&st
, dir
, cfg
);
431 for (i
= -1; i
!= REFTABLE_EMPTY_TABLE_ERROR
; i
--) {
432 err
= reftable_stack_add(st
, &write_error
, &i
);
436 reftable_stack_destroy(st
);
440 static void test_reftable_stack_add(void)
444 struct reftable_write_options cfg
= {
445 .exact_log_message
= 1,
447 struct reftable_stack
*st
= NULL
;
448 char *dir
= get_tmp_dir(__LINE__
);
450 struct reftable_ref_record refs
[2] = { { NULL
} };
451 struct reftable_log_record logs
[2] = { { NULL
} };
452 int N
= ARRAY_SIZE(refs
);
455 err
= reftable_new_stack(&st
, dir
, cfg
);
457 st
->disable_auto_compact
= 1;
459 for (i
= 0; i
< N
; i
++) {
461 snprintf(buf
, sizeof(buf
), "branch%02d", i
);
462 refs
[i
].refname
= xstrdup(buf
);
463 refs
[i
].update_index
= i
+ 1;
464 refs
[i
].value_type
= REFTABLE_REF_VAL1
;
465 refs
[i
].value
.val1
= reftable_malloc(GIT_SHA1_RAWSZ
);
466 set_test_hash(refs
[i
].value
.val1
, i
);
468 logs
[i
].refname
= xstrdup(buf
);
469 logs
[i
].update_index
= N
+ i
+ 1;
470 logs
[i
].value_type
= REFTABLE_LOG_UPDATE
;
472 logs
[i
].value
.update
.new_hash
= reftable_malloc(GIT_SHA1_RAWSZ
);
473 logs
[i
].value
.update
.email
= xstrdup("identity@invalid");
474 set_test_hash(logs
[i
].value
.update
.new_hash
, i
);
477 for (i
= 0; i
< N
; i
++) {
478 int err
= reftable_stack_add(st
, &write_test_ref
, &refs
[i
]);
482 for (i
= 0; i
< N
; i
++) {
483 struct write_log_arg arg
= {
485 .update_index
= reftable_stack_next_update_index(st
),
487 int err
= reftable_stack_add(st
, &write_test_log
, &arg
);
491 err
= reftable_stack_compact_all(st
, NULL
);
494 for (i
= 0; i
< N
; i
++) {
495 struct reftable_ref_record dest
= { NULL
};
497 int err
= reftable_stack_read_ref(st
, refs
[i
].refname
, &dest
);
499 EXPECT(reftable_ref_record_equal(&dest
, refs
+ i
,
501 reftable_ref_record_release(&dest
);
504 for (i
= 0; i
< N
; i
++) {
505 struct reftable_log_record dest
= { NULL
};
506 int err
= reftable_stack_read_log(st
, refs
[i
].refname
, &dest
);
508 EXPECT(reftable_log_record_equal(&dest
, logs
+ i
,
510 reftable_log_record_release(&dest
);
514 reftable_stack_destroy(st
);
515 for (i
= 0; i
< N
; i
++) {
516 reftable_ref_record_release(&refs
[i
]);
517 reftable_log_record_release(&logs
[i
]);
522 static void test_reftable_stack_log_normalize(void)
525 struct reftable_write_options cfg
= {
528 struct reftable_stack
*st
= NULL
;
529 char *dir
= get_tmp_dir(__LINE__
);
531 uint8_t h1
[GIT_SHA1_RAWSZ
] = { 0x01 }, h2
[GIT_SHA1_RAWSZ
] = { 0x02 };
533 struct reftable_log_record input
= { .refname
= "branch",
535 .value_type
= REFTABLE_LOG_UPDATE
,
536 .value
= { .update
= {
540 struct reftable_log_record dest
= {
543 struct write_log_arg arg
= {
548 err
= reftable_new_stack(&st
, dir
, cfg
);
551 input
.value
.update
.message
= "one\ntwo";
552 err
= reftable_stack_add(st
, &write_test_log
, &arg
);
553 EXPECT(err
== REFTABLE_API_ERROR
);
555 input
.value
.update
.message
= "one";
556 err
= reftable_stack_add(st
, &write_test_log
, &arg
);
559 err
= reftable_stack_read_log(st
, input
.refname
, &dest
);
561 EXPECT(0 == strcmp(dest
.value
.update
.message
, "one\n"));
563 input
.value
.update
.message
= "two\n";
564 arg
.update_index
= 2;
565 err
= reftable_stack_add(st
, &write_test_log
, &arg
);
567 err
= reftable_stack_read_log(st
, input
.refname
, &dest
);
569 EXPECT(0 == strcmp(dest
.value
.update
.message
, "two\n"));
572 reftable_stack_destroy(st
);
573 reftable_log_record_release(&dest
);
577 static void test_reftable_stack_tombstone(void)
580 char *dir
= get_tmp_dir(__LINE__
);
582 struct reftable_write_options cfg
= { 0 };
583 struct reftable_stack
*st
= NULL
;
585 struct reftable_ref_record refs
[2] = { { NULL
} };
586 struct reftable_log_record logs
[2] = { { NULL
} };
587 int N
= ARRAY_SIZE(refs
);
588 struct reftable_ref_record dest
= { NULL
};
589 struct reftable_log_record log_dest
= { NULL
};
592 err
= reftable_new_stack(&st
, dir
, cfg
);
595 /* even entries add the refs, odd entries delete them. */
596 for (i
= 0; i
< N
; i
++) {
597 const char *buf
= "branch";
598 refs
[i
].refname
= xstrdup(buf
);
599 refs
[i
].update_index
= i
+ 1;
601 refs
[i
].value_type
= REFTABLE_REF_VAL1
;
602 refs
[i
].value
.val1
= reftable_malloc(GIT_SHA1_RAWSZ
);
603 set_test_hash(refs
[i
].value
.val1
, i
);
606 logs
[i
].refname
= xstrdup(buf
);
607 /* update_index is part of the key. */
608 logs
[i
].update_index
= 42;
610 logs
[i
].value_type
= REFTABLE_LOG_UPDATE
;
611 logs
[i
].value
.update
.new_hash
=
612 reftable_malloc(GIT_SHA1_RAWSZ
);
613 set_test_hash(logs
[i
].value
.update
.new_hash
, i
);
614 logs
[i
].value
.update
.email
=
615 xstrdup("identity@invalid");
618 for (i
= 0; i
< N
; i
++) {
619 int err
= reftable_stack_add(st
, &write_test_ref
, &refs
[i
]);
623 for (i
= 0; i
< N
; i
++) {
624 struct write_log_arg arg
= {
626 .update_index
= reftable_stack_next_update_index(st
),
628 int err
= reftable_stack_add(st
, &write_test_log
, &arg
);
632 err
= reftable_stack_read_ref(st
, "branch", &dest
);
634 reftable_ref_record_release(&dest
);
636 err
= reftable_stack_read_log(st
, "branch", &log_dest
);
638 reftable_log_record_release(&log_dest
);
640 err
= reftable_stack_compact_all(st
, NULL
);
643 err
= reftable_stack_read_ref(st
, "branch", &dest
);
646 err
= reftable_stack_read_log(st
, "branch", &log_dest
);
648 reftable_ref_record_release(&dest
);
649 reftable_log_record_release(&log_dest
);
652 reftable_stack_destroy(st
);
653 for (i
= 0; i
< N
; i
++) {
654 reftable_ref_record_release(&refs
[i
]);
655 reftable_log_record_release(&logs
[i
]);
660 static void test_reftable_stack_hash_id(void)
662 char *dir
= get_tmp_dir(__LINE__
);
664 struct reftable_write_options cfg
= { 0 };
665 struct reftable_stack
*st
= NULL
;
668 struct reftable_ref_record ref
= {
670 .value_type
= REFTABLE_REF_SYMREF
,
671 .value
.symref
= "target",
674 struct reftable_write_options cfg32
= { .hash_id
= GIT_SHA256_FORMAT_ID
};
675 struct reftable_stack
*st32
= NULL
;
676 struct reftable_write_options cfg_default
= { 0 };
677 struct reftable_stack
*st_default
= NULL
;
678 struct reftable_ref_record dest
= { NULL
};
680 err
= reftable_new_stack(&st
, dir
, cfg
);
683 err
= reftable_stack_add(st
, &write_test_ref
, &ref
);
686 /* can't read it with the wrong hash ID. */
687 err
= reftable_new_stack(&st32
, dir
, cfg32
);
688 EXPECT(err
== REFTABLE_FORMAT_ERROR
);
690 /* check that we can read it back with default config too. */
691 err
= reftable_new_stack(&st_default
, dir
, cfg_default
);
694 err
= reftable_stack_read_ref(st_default
, "master", &dest
);
697 EXPECT(reftable_ref_record_equal(&ref
, &dest
, GIT_SHA1_RAWSZ
));
698 reftable_ref_record_release(&dest
);
699 reftable_stack_destroy(st
);
700 reftable_stack_destroy(st_default
);
704 static void test_log2(void)
706 EXPECT(1 == fastlog2(3));
707 EXPECT(2 == fastlog2(4));
708 EXPECT(2 == fastlog2(5));
711 static void test_sizes_to_segments(void)
713 uint64_t sizes
[] = { 2, 3, 4, 5, 7, 9 };
714 /* .................0 1 2 3 4 5 */
717 struct segment
*segs
=
718 sizes_to_segments(&seglen
, sizes
, ARRAY_SIZE(sizes
));
719 EXPECT(segs
[2].log
== 3);
720 EXPECT(segs
[2].start
== 5);
721 EXPECT(segs
[2].end
== 6);
723 EXPECT(segs
[1].log
== 2);
724 EXPECT(segs
[1].start
== 2);
725 EXPECT(segs
[1].end
== 5);
729 static void test_sizes_to_segments_empty(void)
732 struct segment
*segs
= sizes_to_segments(&seglen
, NULL
, 0);
737 static void test_sizes_to_segments_all_equal(void)
739 uint64_t sizes
[] = { 5, 5 };
742 struct segment
*segs
=
743 sizes_to_segments(&seglen
, sizes
, ARRAY_SIZE(sizes
));
745 EXPECT(segs
[0].start
== 0);
746 EXPECT(segs
[0].end
== 2);
750 static void test_suggest_compaction_segment(void)
752 uint64_t sizes
[] = { 128, 64, 17, 16, 9, 9, 9, 16, 16 };
753 /* .................0 1 2 3 4 5 6 */
755 suggest_compaction_segment(sizes
, ARRAY_SIZE(sizes
));
756 EXPECT(min
.start
== 2);
757 EXPECT(min
.end
== 7);
760 static void test_suggest_compaction_segment_nothing(void)
762 uint64_t sizes
[] = { 64, 32, 16, 8, 4, 2 };
763 struct segment result
=
764 suggest_compaction_segment(sizes
, ARRAY_SIZE(sizes
));
765 EXPECT(result
.start
== result
.end
);
768 static void test_reflog_expire(void)
770 char *dir
= get_tmp_dir(__LINE__
);
772 struct reftable_write_options cfg
= { 0 };
773 struct reftable_stack
*st
= NULL
;
774 struct reftable_log_record logs
[20] = { { NULL
} };
775 int N
= ARRAY_SIZE(logs
) - 1;
778 struct reftable_log_expiry_config expiry
= {
781 struct reftable_log_record log
= { NULL
};
784 err
= reftable_new_stack(&st
, dir
, cfg
);
787 for (i
= 1; i
<= N
; i
++) {
789 snprintf(buf
, sizeof(buf
), "branch%02d", i
);
791 logs
[i
].refname
= xstrdup(buf
);
792 logs
[i
].update_index
= i
;
793 logs
[i
].value_type
= REFTABLE_LOG_UPDATE
;
794 logs
[i
].value
.update
.time
= i
;
795 logs
[i
].value
.update
.new_hash
= reftable_malloc(GIT_SHA1_RAWSZ
);
796 logs
[i
].value
.update
.email
= xstrdup("identity@invalid");
797 set_test_hash(logs
[i
].value
.update
.new_hash
, i
);
800 for (i
= 1; i
<= N
; i
++) {
801 struct write_log_arg arg
= {
803 .update_index
= reftable_stack_next_update_index(st
),
805 int err
= reftable_stack_add(st
, &write_test_log
, &arg
);
809 err
= reftable_stack_compact_all(st
, NULL
);
812 err
= reftable_stack_compact_all(st
, &expiry
);
815 err
= reftable_stack_read_log(st
, logs
[9].refname
, &log
);
818 err
= reftable_stack_read_log(st
, logs
[11].refname
, &log
);
821 expiry
.min_update_index
= 15;
822 err
= reftable_stack_compact_all(st
, &expiry
);
825 err
= reftable_stack_read_log(st
, logs
[14].refname
, &log
);
828 err
= reftable_stack_read_log(st
, logs
[16].refname
, &log
);
832 reftable_stack_destroy(st
);
833 for (i
= 0; i
<= N
; i
++) {
834 reftable_log_record_release(&logs
[i
]);
837 reftable_log_record_release(&log
);
840 static int write_nothing(struct reftable_writer
*wr
, void *arg
)
842 reftable_writer_set_limits(wr
, 1, 1);
846 static void test_empty_add(void)
848 struct reftable_write_options cfg
= { 0 };
849 struct reftable_stack
*st
= NULL
;
851 char *dir
= get_tmp_dir(__LINE__
);
853 struct reftable_stack
*st2
= NULL
;
856 err
= reftable_new_stack(&st
, dir
, cfg
);
859 err
= reftable_stack_add(st
, &write_nothing
, NULL
);
862 err
= reftable_new_stack(&st2
, dir
, cfg
);
865 reftable_stack_destroy(st
);
866 reftable_stack_destroy(st2
);
869 static void test_reftable_stack_auto_compaction(void)
871 struct reftable_write_options cfg
= { 0 };
872 struct reftable_stack
*st
= NULL
;
873 char *dir
= get_tmp_dir(__LINE__
);
878 err
= reftable_new_stack(&st
, dir
, cfg
);
881 st
->disable_auto_compact
= 1; /* call manually below for coverage. */
882 for (i
= 0; i
< N
; i
++) {
884 struct reftable_ref_record ref
= {
886 .update_index
= reftable_stack_next_update_index(st
),
887 .value_type
= REFTABLE_REF_SYMREF
,
888 .value
.symref
= "master",
890 snprintf(name
, sizeof(name
), "branch%04d", i
);
892 err
= reftable_stack_add(st
, &write_test_ref
, &ref
);
895 err
= reftable_stack_auto_compact(st
);
897 EXPECT(i
< 3 || st
->merged
->stack_len
< 2 * fastlog2(i
));
900 EXPECT(reftable_stack_compaction_stats(st
)->entries_written
<
901 (uint64_t)(N
* fastlog2(N
)));
903 reftable_stack_destroy(st
);
907 static void test_reftable_stack_add_performs_auto_compaction(void)
909 struct reftable_write_options cfg
= { 0 };
910 struct reftable_stack
*st
= NULL
;
911 struct strbuf refname
= STRBUF_INIT
;
912 char *dir
= get_tmp_dir(__LINE__
);
915 err
= reftable_new_stack(&st
, dir
, cfg
);
918 for (i
= 0; i
<= n
; i
++) {
919 struct reftable_ref_record ref
= {
920 .update_index
= reftable_stack_next_update_index(st
),
921 .value_type
= REFTABLE_REF_SYMREF
,
922 .value
.symref
= "master",
926 * Disable auto-compaction for all but the last runs. Like this
927 * we can ensure that we indeed honor this setting and have
928 * better control over when exactly auto compaction runs.
930 st
->disable_auto_compact
= i
!= n
;
932 strbuf_reset(&refname
);
933 strbuf_addf(&refname
, "branch-%04d", i
);
934 ref
.refname
= refname
.buf
;
936 err
= reftable_stack_add(st
, &write_test_ref
, &ref
);
940 * The stack length should grow continuously for all runs where
941 * auto compaction is disabled. When enabled, we should merge
942 * all tables in the stack.
945 EXPECT(st
->merged
->stack_len
== i
+ 1);
947 EXPECT(st
->merged
->stack_len
== 1);
950 reftable_stack_destroy(st
);
951 strbuf_release(&refname
);
955 static void test_reftable_stack_compaction_concurrent(void)
957 struct reftable_write_options cfg
= { 0 };
958 struct reftable_stack
*st1
= NULL
, *st2
= NULL
;
959 char *dir
= get_tmp_dir(__LINE__
);
964 err
= reftable_new_stack(&st1
, dir
, cfg
);
967 for (i
= 0; i
< N
; i
++) {
969 struct reftable_ref_record ref
= {
971 .update_index
= reftable_stack_next_update_index(st1
),
972 .value_type
= REFTABLE_REF_SYMREF
,
973 .value
.symref
= "master",
975 snprintf(name
, sizeof(name
), "branch%04d", i
);
977 err
= reftable_stack_add(st1
, &write_test_ref
, &ref
);
981 err
= reftable_new_stack(&st2
, dir
, cfg
);
984 err
= reftable_stack_compact_all(st1
, NULL
);
987 reftable_stack_destroy(st1
);
988 reftable_stack_destroy(st2
);
990 EXPECT(count_dir_entries(dir
) == 2);
994 static void unclean_stack_close(struct reftable_stack
*st
)
996 /* break abstraction boundary to simulate unclean shutdown. */
998 for (; i
< st
->readers_len
; i
++) {
999 reftable_reader_free(st
->readers
[i
]);
1001 st
->readers_len
= 0;
1002 FREE_AND_NULL(st
->readers
);
1005 static void test_reftable_stack_compaction_concurrent_clean(void)
1007 struct reftable_write_options cfg
= { 0 };
1008 struct reftable_stack
*st1
= NULL
, *st2
= NULL
, *st3
= NULL
;
1009 char *dir
= get_tmp_dir(__LINE__
);
1014 err
= reftable_new_stack(&st1
, dir
, cfg
);
1017 for (i
= 0; i
< N
; i
++) {
1019 struct reftable_ref_record ref
= {
1021 .update_index
= reftable_stack_next_update_index(st1
),
1022 .value_type
= REFTABLE_REF_SYMREF
,
1023 .value
.symref
= "master",
1025 snprintf(name
, sizeof(name
), "branch%04d", i
);
1027 err
= reftable_stack_add(st1
, &write_test_ref
, &ref
);
1031 err
= reftable_new_stack(&st2
, dir
, cfg
);
1034 err
= reftable_stack_compact_all(st1
, NULL
);
1037 unclean_stack_close(st1
);
1038 unclean_stack_close(st2
);
1040 err
= reftable_new_stack(&st3
, dir
, cfg
);
1043 err
= reftable_stack_clean(st3
);
1045 EXPECT(count_dir_entries(dir
) == 2);
1047 reftable_stack_destroy(st1
);
1048 reftable_stack_destroy(st2
);
1049 reftable_stack_destroy(st3
);
1054 int stack_test_main(int argc
, const char *argv
[])
1056 RUN_TEST(test_empty_add
);
1057 RUN_TEST(test_log2
);
1058 RUN_TEST(test_names_equal
);
1059 RUN_TEST(test_parse_names
);
1060 RUN_TEST(test_read_file
);
1061 RUN_TEST(test_reflog_expire
);
1062 RUN_TEST(test_reftable_stack_add
);
1063 RUN_TEST(test_reftable_stack_add_one
);
1064 RUN_TEST(test_reftable_stack_auto_compaction
);
1065 RUN_TEST(test_reftable_stack_add_performs_auto_compaction
);
1066 RUN_TEST(test_reftable_stack_compaction_concurrent
);
1067 RUN_TEST(test_reftable_stack_compaction_concurrent_clean
);
1068 RUN_TEST(test_reftable_stack_hash_id
);
1069 RUN_TEST(test_reftable_stack_lock_failure
);
1070 RUN_TEST(test_reftable_stack_log_normalize
);
1071 RUN_TEST(test_reftable_stack_tombstone
);
1072 RUN_TEST(test_reftable_stack_transaction_api
);
1073 RUN_TEST(test_reftable_stack_transaction_api_performs_auto_compaction
);
1074 RUN_TEST(test_reftable_stack_update_index_check
);
1075 RUN_TEST(test_reftable_stack_uptodate
);
1076 RUN_TEST(test_reftable_stack_validate_refname
);
1077 RUN_TEST(test_sizes_to_segments
);
1078 RUN_TEST(test_sizes_to_segments_all_equal
);
1079 RUN_TEST(test_sizes_to_segments_empty
);
1080 RUN_TEST(test_suggest_compaction_segment
);
1081 RUN_TEST(test_suggest_compaction_segment_nothing
);