mirrored from git://git.moodle.org/moodle.git
-
Notifications
You must be signed in to change notification settings - Fork 6.6k
/
util.php
1165 lines (1013 loc) · 39.3 KB
/
util.php
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
<?php
// This file is part of Moodle - http://moodle.org/
//
// Moodle is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// Moodle is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with Moodle. If not, see <http://www.gnu.org/licenses/>.
/**
* Utility class.
*
* @package core
* @category phpunit
* @copyright 2012 Petr Skoda {@link http://skodak.org}
* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
*/
/**
* Collection of utility methods.
*
* @package core
* @category phpunit
* @copyright 2012 Petr Skoda {@link http://skodak.org}
* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
*/
class phpunit_util {
/** @var string current version hash from php files */
protected static $versionhash = null;
/** @var array original content of all database tables*/
protected static $tabledata = null;
/** @var array original structure of all database tables */
protected static $tablestructure = null;
/** @var array original structure of all database tables */
protected static $sequencenames = null;
/** @var array An array of original globals, restored after each test */
protected static $globals = array();
/** @var int last value of db writes counter, used for db resetting */
public static $lastdbwrites = null;
/** @var phpunit_data_generator */
protected static $generator = null;
/** @var resource used for prevention of parallel test execution */
protected static $lockhandle = null;
/**
* Prevent parallel test execution - this can not work in Moodle because we modify database and dataroot.
*
* Note: do not call manually!
*
* @internal
* @static
* @return void
*/
public static function acquire_test_lock() {
global $CFG;
if (!file_exists("$CFG->phpunit_dataroot/phpunit")) {
// dataroot not initialised yet
return;
}
if (!file_exists("$CFG->phpunit_dataroot/phpunit/lock")) {
file_put_contents("$CFG->phpunit_dataroot/phpunit/lock", 'This file prevents concurrent execution of Moodle PHPUnit tests');
phpunit_boostrap_fix_file_permissions("$CFG->phpunit_dataroot/phpunit/lock");
}
if (self::$lockhandle = fopen("$CFG->phpunit_dataroot/phpunit/lock", 'r')) {
$wouldblock = null;
$locked = flock(self::$lockhandle, (LOCK_EX | LOCK_NB), $wouldblock);
if (!$locked) {
if ($wouldblock) {
echo "Waiting for other test execution to complete...\n";
}
$locked = flock(self::$lockhandle, LOCK_EX);
}
if (!$locked) {
fclose(self::$lockhandle);
self::$lockhandle = null;
}
}
register_shutdown_function(array('phpunit_util', 'release_test_lock'));
}
/**
* Note: do not call manually!
* @internal
* @static
* @return void
*/
public static function release_test_lock() {
if (self::$lockhandle) {
flock(self::$lockhandle, LOCK_UN);
fclose(self::$lockhandle);
self::$lockhandle = null;
}
}
/**
* Load global $CFG;
* @internal
* @static
* @return void
*/
public static function initialise_cfg() {
global $DB;
$dbhash = false;
try {
$dbhash = $DB->get_field('config', 'value', array('name'=>'phpunittest'));
} catch (Exception $e) {
// not installed yet
initialise_cfg();
return;
}
if ($dbhash !== phpunit_util::get_version_hash()) {
// do not set CFG - the only way forward is to drop and reinstall
return;
}
// standard CFG init
initialise_cfg();
}
/**
* Get data generator
* @static
* @return phpunit_data_generator
*/
public static function get_data_generator() {
if (is_null(self::$generator)) {
require_once(__DIR__.'/../generatorlib.php');
self::$generator = new phpunit_data_generator();
}
return self::$generator;
}
/**
* Returns contents of all tables right after installation.
* @static
* @return array $table=>$records
*/
protected static function get_tabledata() {
global $CFG;
if (!file_exists("$CFG->dataroot/phpunit/tabledata.ser")) {
// not initialised yet
return array();
}
if (!isset(self::$tabledata)) {
$data = file_get_contents("$CFG->dataroot/phpunit/tabledata.ser");
self::$tabledata = unserialize($data);
}
if (!is_array(self::$tabledata)) {
phpunit_bootstrap_error(1, 'Can not read dataroot/phpunit/tabledata.ser or invalid format, reinitialize test database.');
}
return self::$tabledata;
}
/**
* Returns structure of all tables right after installation.
* @static
* @return array $table=>$records
*/
public static function get_tablestructure() {
global $CFG;
if (!file_exists("$CFG->dataroot/phpunit/tablestructure.ser")) {
// not initialised yet
return array();
}
if (!isset(self::$tablestructure)) {
$data = file_get_contents("$CFG->dataroot/phpunit/tablestructure.ser");
self::$tablestructure = unserialize($data);
}
if (!is_array(self::$tablestructure)) {
phpunit_bootstrap_error(1, 'Can not read dataroot/phpunit/tablestructure.ser or invalid format, reinitialize test database.');
}
return self::$tablestructure;
}
/**
* Returns the names of sequences for each autoincrementing id field in all standard tables.
* @static
* @return array $table=>$sequencename
*/
public static function get_sequencenames() {
global $DB;
if (isset(self::$sequencenames)) {
return self::$sequencenames;
}
if (!$structure = self::get_tablestructure()) {
return array();
}
self::$sequencenames = array();
foreach ($structure as $table=>$ignored) {
$name = $DB->get_manager()->generator->getSequenceFromDB(new xmldb_table($table));
if ($name !== false) {
self::$sequencenames[$table] = $name;
}
}
return self::$sequencenames;
}
/**
* Returns list of tables that are unmodified and empty.
*
* @static
* @return array of table names, empty if unknown
*/
protected static function guess_unmodified_empty_tables() {
global $DB;
$dbfamily = $DB->get_dbfamily();
if ($dbfamily === 'mysql') {
$empties = array();
$prefix = $DB->get_prefix();
$rs = $DB->get_recordset_sql("SHOW TABLE STATUS LIKE ?", array($prefix.'%'));
foreach ($rs as $info) {
$table = strtolower($info->name);
if (strpos($table, $prefix) !== 0) {
// incorrect table match caused by _
continue;
}
if (!is_null($info->auto_increment)) {
$table = preg_replace('/^'.preg_quote($prefix, '/').'/', '', $table);
if ($info->auto_increment == 1) {
$empties[$table] = $table;
}
}
}
$rs->close();
return $empties;
} else if ($dbfamily === 'mssql') {
$empties = array();
$prefix = $DB->get_prefix();
$sql = "SELECT t.name
FROM sys.identity_columns i
JOIN sys.tables t ON t.object_id = i.object_id
WHERE t.name LIKE ?
AND i.name = 'id'
AND i.last_value IS NULL";
$rs = $DB->get_recordset_sql($sql, array($prefix.'%'));
foreach ($rs as $info) {
$table = strtolower($info->name);
if (strpos($table, $prefix) !== 0) {
// incorrect table match caused by _
continue;
}
$table = preg_replace('/^'.preg_quote($prefix, '/').'/', '', $table);
$empties[$table] = $table;
}
$rs->close();
return $empties;
} else if ($dbfamily === 'oracle') {
$sequences = phpunit_util::get_sequencenames();
$sequences = array_map('strtoupper', $sequences);
$lookup = array_flip($sequences);
$empties = array();
list($seqs, $params) = $DB->get_in_or_equal($sequences);
$sql = "SELECT sequence_name FROM user_sequences WHERE last_number = 1 AND sequence_name $seqs";
$rs = $DB->get_recordset_sql($sql, $params);
foreach ($rs as $seq) {
$table = $lookup[$seq->sequence_name];
$empties[$table] = $table;
}
$rs->close();
return $empties;
} else {
return array();
}
}
/**
* Reset all database sequences to initial values.
*
* @static
* @param array $empties tables that are known to be unmodified and empty
* @return void
*/
public static function reset_all_database_sequences(array $empties = null) {
global $DB;
if (!$data = self::get_tabledata()) {
// not initialised yet
return;
}
if (!$structure = self::get_tablestructure()) {
// not initialised yet
return;
}
$dbfamily = $DB->get_dbfamily();
if ($dbfamily === 'postgres') {
$queries = array();
$prefix = $DB->get_prefix();
foreach ($data as $table=>$records) {
if (isset($structure[$table]['id']) and $structure[$table]['id']->auto_increment) {
if (empty($records)) {
$nextid = 1;
} else {
$lastrecord = end($records);
$nextid = $lastrecord->id + 1;
}
$queries[] = "ALTER SEQUENCE {$prefix}{$table}_id_seq RESTART WITH $nextid";
}
}
if ($queries) {
$DB->change_database_structure(implode(';', $queries));
}
} else if ($dbfamily === 'mysql') {
$sequences = array();
$prefix = $DB->get_prefix();
$rs = $DB->get_recordset_sql("SHOW TABLE STATUS LIKE ?", array($prefix.'%'));
foreach ($rs as $info) {
$table = strtolower($info->name);
if (strpos($table, $prefix) !== 0) {
// incorrect table match caused by _
continue;
}
if (!is_null($info->auto_increment)) {
$table = preg_replace('/^'.preg_quote($prefix, '/').'/', '', $table);
$sequences[$table] = $info->auto_increment;
}
}
$rs->close();
$prefix = $DB->get_prefix();
foreach ($data as $table=>$records) {
if (isset($structure[$table]['id']) and $structure[$table]['id']->auto_increment) {
if (isset($sequences[$table])) {
if (empty($records)) {
$nextid = 1;
} else {
$lastrecord = end($records);
$nextid = $lastrecord->id + 1;
}
if ($sequences[$table] != $nextid) {
$DB->change_database_structure("ALTER TABLE {$prefix}{$table} AUTO_INCREMENT = $nextid");
}
} else {
// some problem exists, fallback to standard code
$DB->get_manager()->reset_sequence($table);
}
}
}
} else if ($dbfamily === 'oracle') {
$sequences = phpunit_util::get_sequencenames();
$sequences = array_map('strtoupper', $sequences);
$lookup = array_flip($sequences);
$current = array();
list($seqs, $params) = $DB->get_in_or_equal($sequences);
$sql = "SELECT sequence_name, last_number FROM user_sequences WHERE sequence_name $seqs";
$rs = $DB->get_recordset_sql($sql, $params);
foreach ($rs as $seq) {
$table = $lookup[$seq->sequence_name];
$current[$table] = $seq->last_number;
}
$rs->close();
foreach ($data as $table=>$records) {
if (isset($structure[$table]['id']) and $structure[$table]['id']->auto_increment) {
$lastrecord = end($records);
if ($lastrecord) {
$nextid = $lastrecord->id + 1;
} else {
$nextid = 1;
}
if (!isset($current[$table])) {
$DB->get_manager()->reset_sequence($table);
} else if ($nextid == $current[$table]) {
continue;
}
// reset as fast as possible - alternatively we could use http://stackoverflow.com/questions/51470/how-do-i-reset-a-sequence-in-oracle
$seqname = $sequences[$table];
$cachesize = $DB->get_manager()->generator->sequence_cache_size;
$DB->change_database_structure("DROP SEQUENCE $seqname");
$DB->change_database_structure("CREATE SEQUENCE $seqname START WITH $nextid INCREMENT BY 1 NOMAXVALUE CACHE $cachesize");
}
}
} else {
// note: does mssql support any kind of faster reset?
if (is_null($empties)) {
$empties = self::guess_unmodified_empty_tables();
}
foreach ($data as $table=>$records) {
if (isset($empties[$table])) {
continue;
}
if (isset($structure[$table]['id']) and $structure[$table]['id']->auto_increment) {
$DB->get_manager()->reset_sequence($table);
}
}
}
}
/**
* Reset all database tables to default values.
* @static
* @return bool true if reset done, false if skipped
*/
public static function reset_database() {
global $DB;
if (!is_null(self::$lastdbwrites) and self::$lastdbwrites == $DB->perf_get_writes()) {
return false;
}
$tables = $DB->get_tables(false);
if (!$tables or empty($tables['config'])) {
// not installed yet
return false;
}
if (!$data = self::get_tabledata()) {
// not initialised yet
return false;
}
if (!$structure = self::get_tablestructure()) {
// not initialised yet
return false;
}
$empties = self::guess_unmodified_empty_tables();
foreach ($data as $table=>$records) {
if (empty($records)) {
if (isset($empties[$table])) {
// table was not modified and is empty
} else {
$DB->delete_records($table, array());
}
continue;
}
if (isset($structure[$table]['id']) and $structure[$table]['id']->auto_increment) {
$currentrecords = $DB->get_records($table, array(), 'id ASC');
$changed = false;
foreach ($records as $id=>$record) {
if (!isset($currentrecords[$id])) {
$changed = true;
break;
}
if ((array)$record != (array)$currentrecords[$id]) {
$changed = true;
break;
}
unset($currentrecords[$id]);
}
if (!$changed) {
if ($currentrecords) {
$lastrecord = end($records);
$DB->delete_records_select($table, "id > ?", array($lastrecord->id));
continue;
} else {
continue;
}
}
}
$DB->delete_records($table, array());
foreach ($records as $record) {
$DB->import_record($table, $record, false, true);
}
}
// reset all next record ids - aka sequences
self::reset_all_database_sequences($empties);
// remove extra tables
foreach ($tables as $table) {
if (!isset($data[$table])) {
$DB->get_manager()->drop_table(new xmldb_table($table));
}
}
self::$lastdbwrites = $DB->perf_get_writes();
return true;
}
/**
* Purge dataroot directory
* @static
* @return void
*/
public static function reset_dataroot() {
global $CFG;
$handle = opendir($CFG->dataroot);
$skip = array('.', '..', 'phpunittestdir.txt', 'phpunit', '.htaccess');
while (false !== ($item = readdir($handle))) {
if (in_array($item, $skip)) {
continue;
}
if (is_dir("$CFG->dataroot/$item")) {
remove_dir("$CFG->dataroot/$item", false);
} else {
unlink("$CFG->dataroot/$item");
}
}
closedir($handle);
make_temp_directory('');
make_cache_directory('');
make_cache_directory('htmlpurifier');
}
/**
* Reset contents of all database tables to initial values, reset caches, etc.
*
* Note: this is relatively slow (cca 2 seconds for pg and 7 for mysql) - please use with care!
*
* @static
* @param bool $logchanges log changes in global state and database in error log
* @return void
*/
public static function reset_all_data($logchanges = false) {
global $DB, $CFG, $USER, $SITE, $COURSE, $PAGE, $OUTPUT, $SESSION, $GROUPLIB_CACHE;
// Release memory and indirectly call destroy() methods to release resource handles, etc.
gc_collect_cycles();
// reset global $DB in case somebody mocked it
$DB = self::get_global_backup('DB');
if ($DB->is_transaction_started()) {
// we can not reset inside transaction
$DB->force_transaction_rollback();
}
$resetdb = self::reset_database();
$warnings = array();
if ($logchanges) {
if ($resetdb) {
$warnings[] = 'Warning: unexpected database modification, resetting DB state';
}
$oldcfg = self::get_global_backup('CFG');
$oldsite = self::get_global_backup('SITE');
foreach($CFG as $k=>$v) {
if (!property_exists($oldcfg, $k)) {
$warnings[] = 'Warning: unexpected new $CFG->'.$k.' value';
} else if ($oldcfg->$k !== $CFG->$k) {
$warnings[] = 'Warning: unexpected change of $CFG->'.$k.' value';
}
unset($oldcfg->$k);
}
if ($oldcfg) {
foreach($oldcfg as $k=>$v) {
$warnings[] = 'Warning: unexpected removal of $CFG->'.$k;
}
}
if ($USER->id != 0) {
$warnings[] = 'Warning: unexpected change of $USER';
}
if ($COURSE->id != $oldsite->id) {
$warnings[] = 'Warning: unexpected change of $COURSE';
}
}
// restore original globals
$_SERVER = self::get_global_backup('_SERVER');
$CFG = self::get_global_backup('CFG');
$SITE = self::get_global_backup('SITE');
$COURSE = $SITE;
// reinitialise following globals
$OUTPUT = new bootstrap_renderer();
$PAGE = new moodle_page();
$FULLME = null;
$ME = null;
$SCRIPT = null;
$SESSION = new stdClass();
$_SESSION['SESSION'] =& $SESSION;
// set fresh new not-logged-in user
$user = new stdClass();
$user->id = 0;
$user->mnethostid = $CFG->mnet_localhost_id;
session_set_user($user);
// reset all static caches
accesslib_clear_all_caches(true);
get_string_manager()->reset_caches();
events_get_handlers('reset');
textlib::reset_caches();
if (class_exists('repository')) {
repository::reset_caches();
}
$GROUPLIB_CACHE = null;
//TODO MDL-25290: add more resets here and probably refactor them to new core function
// purge dataroot directory
self::reset_dataroot();
// restore original config once more in case resetting of caches changed CFG
$CFG = self::get_global_backup('CFG');
// inform data generator
self::get_data_generator()->reset();
// fix PHP settings
error_reporting($CFG->debug);
// verify db writes just in case something goes wrong in reset
if (self::$lastdbwrites != $DB->perf_get_writes()) {
error_log('Unexpected DB writes in phpunit_util::reset_all_data()');
self::$lastdbwrites = $DB->perf_get_writes();
}
if ($warnings) {
$warnings = implode("\n", $warnings);
trigger_error($warnings, E_USER_WARNING);
}
}
/**
* Called during bootstrap only!
* @internal
* @static
* @return void
*/
public static function bootstrap_init() {
global $CFG, $SITE, $DB;
// backup the globals
self::$globals['_SERVER'] = $_SERVER;
self::$globals['CFG'] = clone($CFG);
self::$globals['SITE'] = clone($SITE);
self::$globals['DB'] = $DB;
// refresh data in all tables, clear caches, etc.
phpunit_util::reset_all_data();
}
/**
* Returns original state of global variable.
* @static
* @param string $name
* @return mixed
*/
public static function get_global_backup($name) {
if ($name === 'DB') {
// no cloning of database object,
// we just need the original reference, not original state
return self::$globals['DB'];
}
if (isset(self::$globals[$name])) {
if (is_object(self::$globals[$name])) {
$return = clone(self::$globals[$name]);
return $return;
} else {
return self::$globals[$name];
}
}
return null;
}
/**
* Does this site (db and dataroot) appear to be used for production?
* We try very hard to prevent accidental damage done to production servers!!
*
* @static
* @return bool
*/
public static function is_test_site() {
global $DB, $CFG;
if (!file_exists("$CFG->dataroot/phpunittestdir.txt")) {
// this is already tested in bootstrap script,
// but anyway presence of this file means the dataroot is for testing
return false;
}
$tables = $DB->get_tables(false);
if ($tables) {
if (!$DB->get_manager()->table_exists('config')) {
return false;
}
if (!get_config('core', 'phpunittest')) {
return false;
}
}
return true;
}
/**
* Is this site initialised to run unit tests?
*
* @static
* @return int array errorcode=>message, 0 means ok
*/
public static function testing_ready_problem() {
global $CFG, $DB;
$tables = $DB->get_tables(false);
if (!self::is_test_site()) {
// dataroot was verified in bootstrap, so it must be DB
return array(PHPUNIT_EXITCODE_CONFIGERROR, 'Can not use database for testing, try different prefix');
}
if (empty($tables)) {
return array(PHPUNIT_EXITCODE_INSTALL, '');
}
if (!file_exists("$CFG->dataroot/phpunit/tabledata.ser") or !file_exists("$CFG->dataroot/phpunit/tablestructure.ser")) {
return array(PHPUNIT_EXITCODE_REINSTALL, '');
}
if (!file_exists("$CFG->dataroot/phpunit/versionshash.txt")) {
return array(PHPUNIT_EXITCODE_REINSTALL, '');
}
$hash = phpunit_util::get_version_hash();
$oldhash = file_get_contents("$CFG->dataroot/phpunit/versionshash.txt");
if ($hash !== $oldhash) {
return array(PHPUNIT_EXITCODE_REINSTALL, '');
}
$dbhash = get_config('core', 'phpunittest');
if ($hash !== $dbhash) {
return array(PHPUNIT_EXITCODE_REINSTALL, '');
}
return array(0, '');
}
/**
* Drop all test site data.
*
* Note: To be used from CLI scripts only.
*
* @static
* @param bool $displayprogress if true, this method will echo progress information.
* @return void may terminate execution with exit code
*/
public static function drop_site($displayprogress = false) {
global $DB, $CFG;
if (!self::is_test_site()) {
phpunit_bootstrap_error(PHPUNIT_EXITCODE_CONFIGERROR, 'Can not drop non-test site!!');
}
// Purge dataroot
if ($displayprogress) {
echo "Purging dataroot:\n";
}
self::reset_dataroot();
phpunit_bootstrap_initdataroot($CFG->dataroot);
$keep = array('.', '..', 'lock', 'webrunner.xml');
$files = scandir("$CFG->dataroot/phpunit");
foreach ($files as $file) {
if (in_array($file, $keep)) {
continue;
}
$path = "$CFG->dataroot/phpunit/$file";
if (is_dir($path)) {
remove_dir($path, false);
} else {
unlink($path);
}
}
// drop all tables
$tables = $DB->get_tables(false);
if (isset($tables['config'])) {
// config always last to prevent problems with interrupted drops!
unset($tables['config']);
$tables['config'] = 'config';
}
if ($displayprogress) {
echo "Dropping tables:\n";
}
$dotsonline = 0;
foreach ($tables as $tablename) {
$table = new xmldb_table($tablename);
$DB->get_manager()->drop_table($table);
if ($dotsonline == 60) {
if ($displayprogress) {
echo "\n";
}
$dotsonline = 0;
}
if ($displayprogress) {
echo '.';
}
$dotsonline += 1;
}
if ($displayprogress) {
echo "\n";
}
}
/**
* Perform a fresh test site installation
*
* Note: To be used from CLI scripts only.
*
* @static
* @return void may terminate execution with exit code
*/
public static function install_site() {
global $DB, $CFG;
if (!self::is_test_site()) {
phpunit_bootstrap_error(PHPUNIT_EXITCODE_CONFIGERROR, 'Can not install on non-test site!!');
}
if ($DB->get_tables()) {
list($errorcode, $message) = phpunit_util::testing_ready_problem();
if ($errorcode) {
phpunit_bootstrap_error(PHPUNIT_EXITCODE_REINSTALL, 'Database tables already present, Moodle PHPUnit test environment can not be initialised');
} else {
phpunit_bootstrap_error(0, 'Moodle PHPUnit test environment is already initialised');
}
}
$options = array();
$options['adminpass'] = 'admin';
$options['shortname'] = 'phpunit';
$options['fullname'] = 'PHPUnit test site';
install_cli_database($options, false);
// install timezone info
$timezones = get_records_csv($CFG->libdir.'/timezone.txt', 'timezone');
update_timezone_records($timezones);
// add test db flag
$hash = phpunit_util::get_version_hash();
set_config('phpunittest', $hash);
// store data for all tables
$data = array();
$structure = array();
$tables = $DB->get_tables();
foreach ($tables as $table) {
$columns = $DB->get_columns($table);
$structure[$table] = $columns;
if (isset($columns['id']) and $columns['id']->auto_increment) {
$data[$table] = $DB->get_records($table, array(), 'id ASC');
} else {
// there should not be many of these
$data[$table] = $DB->get_records($table, array());
}
}
$data = serialize($data);
file_put_contents("$CFG->dataroot/phpunit/tabledata.ser", $data);
phpunit_boostrap_fix_file_permissions("$CFG->dataroot/phpunit/tabledata.ser");
$structure = serialize($structure);
file_put_contents("$CFG->dataroot/phpunit/tablestructure.ser", $structure);
phpunit_boostrap_fix_file_permissions("$CFG->dataroot/phpunit/tablestructure.ser");
// hash all plugin versions - helps with very fast detection of db structure changes
file_put_contents("$CFG->dataroot/phpunit/versionshash.txt", $hash);
phpunit_boostrap_fix_file_permissions("$CFG->dataroot/phpunit/versionshash.txt", $hash);
}
/**
* Calculate unique version hash for all plugins and core.
* @static
* @return string sha1 hash
*/
public static function get_version_hash() {
global $CFG;
if (self::$versionhash) {
return self::$versionhash;
}
$versions = array();
// main version first
$version = null;
include($CFG->dirroot.'/version.php');
$versions['core'] = $version;
// modules
$mods = get_plugin_list('mod');
ksort($mods);
foreach ($mods as $mod => $fullmod) {
$module = new stdClass();
$module->version = null;
include($fullmod.'/version.php');
$versions[$mod] = $module->version;
}
// now the rest of plugins
$plugintypes = get_plugin_types();
unset($plugintypes['mod']);
ksort($plugintypes);
foreach ($plugintypes as $type=>$unused) {
$plugs = get_plugin_list($type);
ksort($plugs);
foreach ($plugs as $plug=>$fullplug) {
$plugin = new stdClass();
$plugin->version = null;
@include($fullplug.'/version.php');
$versions[$plug] = $plugin->version;
}
}
self::$versionhash = sha1(serialize($versions));
return self::$versionhash;
}
/**
* Builds dirroot/phpunit.xml and dataroot/phpunit/webrunner.xml files using defaults from /phpunit.xml.dist
* @static
* @return bool true means main config file created, false means only dataroot file created
*/
public static function build_config_file() {
global $CFG;
$template = '
<testsuite name="@component@ test suite">
<directory suffix="_test.php">@dir@</directory>
</testsuite>';
$data = file_get_contents("$CFG->dirroot/phpunit.xml.dist");
$suites = '';
$plugintypes = get_plugin_types();
ksort($plugintypes);
foreach ($plugintypes as $type=>$unused) {
$plugs = get_plugin_list($type);
ksort($plugs);
foreach ($plugs as $plug=>$fullplug) {
if (!file_exists("$fullplug/tests/")) {
continue;
}
$dir = substr($fullplug, strlen($CFG->dirroot)+1);
$dir .= '/tests';
$component = $type.'_'.$plug;
$suite = str_replace('@component@', $component, $template);
$suite = str_replace('@dir@', $dir, $suite);
$suites .= $suite;
}
}
$data = preg_replace('|<!--@plugin_suites_start@-->.*<!--@plugin_suites_end@-->|s', $suites, $data, 1);
$result = false;
if (is_writable($CFG->dirroot)) {
if ($result = file_put_contents("$CFG->dirroot/phpunit.xml", $data)) {
phpunit_boostrap_fix_file_permissions("$CFG->dirroot/phpunit.xml");
}
}
// relink - it seems that xml:base does not work in phpunit xml files, remove this nasty hack if you find a way to set xml base for relative refs
$data = str_replace('lib/phpunit/', $CFG->dirroot.DIRECTORY_SEPARATOR.'lib'.DIRECTORY_SEPARATOR.'phpunit'.DIRECTORY_SEPARATOR, $data);
$data = preg_replace('|<directory suffix="_test.php">([^<]+)</directory>|',
'<directory suffix="_test.php">'.$CFG->dirroot.(DIRECTORY_SEPARATOR === '\\' ? '\\\\' : DIRECTORY_SEPARATOR).'$1</directory>',
$data);
file_put_contents("$CFG->dataroot/phpunit/webrunner.xml", $data);
phpunit_boostrap_fix_file_permissions("$CFG->dataroot/phpunit/webrunner.xml");
return (bool)$result;
}