MDL-64656 core_tag: New WebService core_tag_get_tag_cloud
[moodle.git] / mod / forum / tests / externallib_test.php
1 <?php
2 // This file is part of Moodle - http://moodle.org/
3 //
4 // Moodle is free software: you can redistribute it and/or modify
5 // it under the terms of the GNU General Public License as published by
6 // the Free Software Foundation, either version 3 of the License, or
7 // (at your option) any later version.
8 //
9 // Moodle is distributed in the hope that it will be useful,
10 // but WITHOUT ANY WARRANTY; without even the implied warranty of
11 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
12 // GNU General Public License for more details.
13 //
14 // You should have received a copy of the GNU General Public License
15 // along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
17 /**
18  * The module forums external functions unit tests
19  *
20  * @package    mod_forum
21  * @category   external
22  * @copyright  2012 Mark Nelson <markn@moodle.com>
23  * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
24  */
26 defined('MOODLE_INTERNAL') || die();
28 global $CFG;
30 require_once($CFG->dirroot . '/webservice/tests/helpers.php');
31 require_once($CFG->dirroot . '/mod/forum/lib.php');
33 class mod_forum_external_testcase extends externallib_advanced_testcase {
35     /**
36      * Tests set up
37      */
38     protected function setUp() {
39         global $CFG;
41         // We must clear the subscription caches. This has to be done both before each test, and after in case of other
42         // tests using these functions.
43         \mod_forum\subscriptions::reset_forum_cache();
45         require_once($CFG->dirroot . '/mod/forum/externallib.php');
46     }
48     public function tearDown() {
49         // We must clear the subscription caches. This has to be done both before each test, and after in case of other
50         // tests using these functions.
51         \mod_forum\subscriptions::reset_forum_cache();
52     }
54     /**
55      * Test get forums
56      */
57     public function test_mod_forum_get_forums_by_courses() {
58         global $USER, $CFG, $DB;
60         $this->resetAfterTest(true);
62         // Create a user.
63         $user = self::getDataGenerator()->create_user(array('trackforums' => 1));
65         // Set to the user.
66         self::setUser($user);
68         // Create courses to add the modules.
69         $course1 = self::getDataGenerator()->create_course();
70         $course2 = self::getDataGenerator()->create_course();
72         // First forum.
73         $record = new stdClass();
74         $record->introformat = FORMAT_HTML;
75         $record->course = $course1->id;
76         $record->trackingtype = FORUM_TRACKING_FORCED;
77         $forum1 = self::getDataGenerator()->create_module('forum', $record);
79         // Second forum.
80         $record = new stdClass();
81         $record->introformat = FORMAT_HTML;
82         $record->course = $course2->id;
83         $record->trackingtype = FORUM_TRACKING_OFF;
84         $forum2 = self::getDataGenerator()->create_module('forum', $record);
85         $forum2->introfiles = [];
87         // Add discussions to the forums.
88         $record = new stdClass();
89         $record->course = $course1->id;
90         $record->userid = $user->id;
91         $record->forum = $forum1->id;
92         $discussion1 = self::getDataGenerator()->get_plugin_generator('mod_forum')->create_discussion($record);
93         // Expect one discussion.
94         $forum1->numdiscussions = 1;
95         $forum1->cancreatediscussions = true;
96         $forum1->istracked = true;
97         $forum1->unreadpostscount = 0;
98         $forum1->introfiles = [];
100         $record = new stdClass();
101         $record->course = $course2->id;
102         $record->userid = $user->id;
103         $record->forum = $forum2->id;
104         $discussion2 = self::getDataGenerator()->get_plugin_generator('mod_forum')->create_discussion($record);
105         $discussion3 = self::getDataGenerator()->get_plugin_generator('mod_forum')->create_discussion($record);
106         // Expect two discussions.
107         $forum2->numdiscussions = 2;
108         // Default limited role, no create discussion capability enabled.
109         $forum2->cancreatediscussions = false;
110         $forum2->istracked = false;
112         // Check the forum was correctly created.
113         $this->assertEquals(2, $DB->count_records_select('forum', 'id = :forum1 OR id = :forum2',
114                 array('forum1' => $forum1->id, 'forum2' => $forum2->id)));
116         // Enrol the user in two courses.
117         // DataGenerator->enrol_user automatically sets a role for the user with the permission mod/form:viewdiscussion.
118         $this->getDataGenerator()->enrol_user($user->id, $course1->id, null, 'manual');
119         // Execute real Moodle enrolment as we'll call unenrol() method on the instance later.
120         $enrol = enrol_get_plugin('manual');
121         $enrolinstances = enrol_get_instances($course2->id, true);
122         foreach ($enrolinstances as $courseenrolinstance) {
123             if ($courseenrolinstance->enrol == "manual") {
124                 $instance2 = $courseenrolinstance;
125                 break;
126             }
127         }
128         $enrol->enrol_user($instance2, $user->id);
130         // Assign capabilities to view forums for forum 2.
131         $cm2 = get_coursemodule_from_id('forum', $forum2->cmid, 0, false, MUST_EXIST);
132         $context2 = context_module::instance($cm2->id);
133         $newrole = create_role('Role 2', 'role2', 'Role 2 description');
134         $roleid2 = $this->assignUserCapability('mod/forum:viewdiscussion', $context2->id, $newrole);
136         // Create what we expect to be returned when querying the two courses.
137         unset($forum1->displaywordcount);
138         unset($forum2->displaywordcount);
140         $expectedforums = array();
141         $expectedforums[$forum1->id] = (array) $forum1;
142         $expectedforums[$forum2->id] = (array) $forum2;
144         // Call the external function passing course ids.
145         $forums = mod_forum_external::get_forums_by_courses(array($course1->id, $course2->id));
146         $forums = external_api::clean_returnvalue(mod_forum_external::get_forums_by_courses_returns(), $forums);
147         $this->assertCount(2, $forums);
148         foreach ($forums as $forum) {
149             $this->assertEquals($expectedforums[$forum['id']], $forum);
150         }
152         // Call the external function without passing course id.
153         $forums = mod_forum_external::get_forums_by_courses();
154         $forums = external_api::clean_returnvalue(mod_forum_external::get_forums_by_courses_returns(), $forums);
155         $this->assertCount(2, $forums);
156         foreach ($forums as $forum) {
157             $this->assertEquals($expectedforums[$forum['id']], $forum);
158         }
160         // Unenrol user from second course and alter expected forums.
161         $enrol->unenrol_user($instance2, $user->id);
162         unset($expectedforums[$forum2->id]);
164         // Call the external function without passing course id.
165         $forums = mod_forum_external::get_forums_by_courses();
166         $forums = external_api::clean_returnvalue(mod_forum_external::get_forums_by_courses_returns(), $forums);
167         $this->assertCount(1, $forums);
168         $this->assertEquals($expectedforums[$forum1->id], $forums[0]);
169         $this->assertTrue($forums[0]['cancreatediscussions']);
171         // Change the type of the forum, the user shouldn't be able to add discussions.
172         $DB->set_field('forum', 'type', 'news', array('id' => $forum1->id));
173         $forums = mod_forum_external::get_forums_by_courses();
174         $forums = external_api::clean_returnvalue(mod_forum_external::get_forums_by_courses_returns(), $forums);
175         $this->assertFalse($forums[0]['cancreatediscussions']);
177         // Call for the second course we unenrolled the user from.
178         $forums = mod_forum_external::get_forums_by_courses(array($course2->id));
179         $forums = external_api::clean_returnvalue(mod_forum_external::get_forums_by_courses_returns(), $forums);
180         $this->assertCount(0, $forums);
181     }
183     /**
184      * Test get forum posts
185      */
186     public function test_mod_forum_get_forum_discussion_posts() {
187         global $CFG, $PAGE;
189         $this->resetAfterTest(true);
191         // Set the CFG variable to allow track forums.
192         $CFG->forum_trackreadposts = true;
194         // Create a user who can track forums.
195         $record = new stdClass();
196         $record->trackforums = true;
197         $user1 = self::getDataGenerator()->create_user($record);
198         // Create a bunch of other users to post.
199         $user2 = self::getDataGenerator()->create_user();
200         $user3 = self::getDataGenerator()->create_user();
202         // Set the first created user to the test user.
203         self::setUser($user1);
205         // Create course to add the module.
206         $course1 = self::getDataGenerator()->create_course();
208         // Forum with tracking off.
209         $record = new stdClass();
210         $record->course = $course1->id;
211         $record->trackingtype = FORUM_TRACKING_OFF;
212         $forum1 = self::getDataGenerator()->create_module('forum', $record);
213         $forum1context = context_module::instance($forum1->cmid);
215         // Forum with tracking enabled.
216         $record = new stdClass();
217         $record->course = $course1->id;
218         $forum2 = self::getDataGenerator()->create_module('forum', $record);
219         $forum2cm = get_coursemodule_from_id('forum', $forum2->cmid);
220         $forum2context = context_module::instance($forum2->cmid);
222         // Add discussions to the forums.
223         $record = new stdClass();
224         $record->course = $course1->id;
225         $record->userid = $user1->id;
226         $record->forum = $forum1->id;
227         $discussion1 = self::getDataGenerator()->get_plugin_generator('mod_forum')->create_discussion($record);
229         $record = new stdClass();
230         $record->course = $course1->id;
231         $record->userid = $user2->id;
232         $record->forum = $forum1->id;
233         $discussion2 = self::getDataGenerator()->get_plugin_generator('mod_forum')->create_discussion($record);
235         $record = new stdClass();
236         $record->course = $course1->id;
237         $record->userid = $user2->id;
238         $record->forum = $forum2->id;
239         $discussion3 = self::getDataGenerator()->get_plugin_generator('mod_forum')->create_discussion($record);
241         // Add 2 replies to the discussion 1 from different users.
242         $record = new stdClass();
243         $record->discussion = $discussion1->id;
244         $record->parent = $discussion1->firstpost;
245         $record->userid = $user2->id;
246         $discussion1reply1 = self::getDataGenerator()->get_plugin_generator('mod_forum')->create_post($record);
247         $filename = 'shouldbeanimage.jpg';
248         // Add a fake inline image to the post.
249         $filerecordinline = array(
250             'contextid' => $forum1context->id,
251             'component' => 'mod_forum',
252             'filearea'  => 'post',
253             'itemid'    => $discussion1reply1->id,
254             'filepath'  => '/',
255             'filename'  => $filename,
256         );
257         $fs = get_file_storage();
258         $timepost = time();
259         $fs->create_file_from_string($filerecordinline, 'image contents (not really)');
261         $record->parent = $discussion1reply1->id;
262         $record->userid = $user3->id;
263         $record->tags = array('Cats', 'Dogs');
264         $discussion1reply2 = self::getDataGenerator()->get_plugin_generator('mod_forum')->create_post($record);
266         // Enrol the user in the  course.
267         $enrol = enrol_get_plugin('manual');
268         // Following line enrol and assign default role id to the user.
269         // So the user automatically gets mod/forum:viewdiscussion on all forums of the course.
270         $this->getDataGenerator()->enrol_user($user1->id, $course1->id);
271         $this->getDataGenerator()->enrol_user($user2->id, $course1->id);
273         // Delete one user, to test that we still receive posts by this user.
274         delete_user($user3);
276         // Create what we expect to be returned when querying the discussion.
277         $expectedposts = array(
278             'posts' => array(),
279             'ratinginfo' => array(
280                 'contextid' => $forum1context->id,
281                 'component' => 'mod_forum',
282                 'ratingarea' => 'post',
283                 'canviewall' => null,
284                 'canviewany' => null,
285                 'scales' => array(),
286                 'ratings' => array(),
287             ),
288             'warnings' => array(),
289         );
291         // User pictures are initially empty, we should get the links once the external function is called.
292         $expectedposts['posts'][] = array(
293             'id' => $discussion1reply2->id,
294             'discussion' => $discussion1reply2->discussion,
295             'parent' => $discussion1reply2->parent,
296             'userid' => (int) $discussion1reply2->userid,
297             'created' => $discussion1reply2->created,
298             'modified' => $discussion1reply2->modified,
299             'mailed' => $discussion1reply2->mailed,
300             'subject' => $discussion1reply2->subject,
301             'message' => file_rewrite_pluginfile_urls($discussion1reply2->message, 'pluginfile.php',
302                     $forum1context->id, 'mod_forum', 'post', $discussion1reply2->id),
303             'messageformat' => 1,   // This value is usually changed by external_format_text() function.
304             'messagetrust' => $discussion1reply2->messagetrust,
305             'attachment' => $discussion1reply2->attachment,
306             'totalscore' => $discussion1reply2->totalscore,
307             'mailnow' => $discussion1reply2->mailnow,
308             'children' => array(),
309             'canreply' => true,
310             'postread' => false,
311             'userfullname' => fullname($user3),
312             'userpictureurl' => '',
313             'deleted' => false,
314             'isprivatereply' => false,
315             'tags' => \core_tag\external\util::get_item_tags('mod_forum', 'forum_posts', $discussion1reply2->id),
316         );
317         // Cast to expected.
318         $this->assertCount(2, $expectedposts['posts'][0]['tags']);
319         $expectedposts['posts'][0]['tags'][0]['isstandard'] = (bool) $expectedposts['posts'][0]['tags'][0]['isstandard'];
320         $expectedposts['posts'][0]['tags'][1]['isstandard'] = (bool) $expectedposts['posts'][0]['tags'][1]['isstandard'];
322         $expectedposts['posts'][] = array(
323             'id' => $discussion1reply1->id,
324             'discussion' => $discussion1reply1->discussion,
325             'parent' => $discussion1reply1->parent,
326             'userid' => (int) $discussion1reply1->userid,
327             'created' => $discussion1reply1->created,
328             'modified' => $discussion1reply1->modified,
329             'mailed' => $discussion1reply1->mailed,
330             'subject' => $discussion1reply1->subject,
331             'message' => file_rewrite_pluginfile_urls($discussion1reply1->message, 'pluginfile.php',
332                     $forum1context->id, 'mod_forum', 'post', $discussion1reply1->id),
333             'messageformat' => 1,   // This value is usually changed by external_format_text() function.
334             'messagetrust' => $discussion1reply1->messagetrust,
335             'attachment' => $discussion1reply1->attachment,
336             'messageinlinefiles' => array(
337                 array(
338                     'filename' => $filename,
339                     'filepath' => '/',
340                     'filesize' => '27',
341                     'fileurl' => moodle_url::make_webservice_pluginfile_url($forum1context->id, 'mod_forum', 'post',
342                                     $discussion1reply1->id, '/', $filename),
343                     'timemodified' => $timepost,
344                     'mimetype' => 'image/jpeg',
345                     'isexternalfile' => false,
346                 )
347             ),
348             'totalscore' => $discussion1reply1->totalscore,
349             'mailnow' => $discussion1reply1->mailnow,
350             'children' => array($discussion1reply2->id),
351             'canreply' => true,
352             'postread' => false,
353             'userfullname' => fullname($user2),
354             'userpictureurl' => '',
355             'deleted' => false,
356             'isprivatereply' => false,
357             'tags' => array(),
358         );
360         // Test a discussion with two additional posts (total 3 posts).
361         $posts = mod_forum_external::get_forum_discussion_posts($discussion1->id, 'modified', 'DESC');
362         $posts = external_api::clean_returnvalue(mod_forum_external::get_forum_discussion_posts_returns(), $posts);
363         $this->assertEquals(3, count($posts['posts']));
365         // Generate here the pictures because we need to wait to the external function to init the theme.
366         $userpicture = new user_picture($user3);
367         $userpicture->size = 1; // Size f1.
368         $expectedposts['posts'][0]['userpictureurl'] = $userpicture->get_url($PAGE)->out(false);
370         $userpicture = new user_picture($user2);
371         $userpicture->size = 1; // Size f1.
372         $expectedposts['posts'][1]['userpictureurl'] = $userpicture->get_url($PAGE)->out(false);
374         // Unset the initial discussion post.
375         array_pop($posts['posts']);
376         $this->assertEquals($expectedposts, $posts);
378         // Check we receive the unread count correctly on tracked forum.
379         forum_tp_count_forum_unread_posts($forum2cm, $course1, true);    // Reset static cache.
380         $result = mod_forum_external::get_forums_by_courses(array($course1->id));
381         $result = external_api::clean_returnvalue(mod_forum_external::get_forums_by_courses_returns(), $result);
382         foreach ($result as $f) {
383             if ($f['id'] == $forum2->id) {
384                 $this->assertEquals(1, $f['unreadpostscount']);
385             }
386         }
388         // Test discussion without additional posts. There should be only one post (the one created by the discussion).
389         $posts = mod_forum_external::get_forum_discussion_posts($discussion2->id, 'modified', 'DESC');
390         $posts = external_api::clean_returnvalue(mod_forum_external::get_forum_discussion_posts_returns(), $posts);
391         $this->assertEquals(1, count($posts['posts']));
393         // Test discussion tracking on not tracked forum.
394         $result = mod_forum_external::view_forum_discussion($discussion1->id);
395         $result = external_api::clean_returnvalue(mod_forum_external::view_forum_discussion_returns(), $result);
396         $this->assertTrue($result['status']);
397         $this->assertEmpty($result['warnings']);
399         // Test posts have not been marked as read.
400         $posts = mod_forum_external::get_forum_discussion_posts($discussion1->id, 'modified', 'DESC');
401         $posts = external_api::clean_returnvalue(mod_forum_external::get_forum_discussion_posts_returns(), $posts);
402         foreach ($posts['posts'] as $post) {
403             $this->assertFalse($post['postread']);
404         }
406         // Test discussion tracking on tracked forum.
407         $result = mod_forum_external::view_forum_discussion($discussion3->id);
408         $result = external_api::clean_returnvalue(mod_forum_external::view_forum_discussion_returns(), $result);
409         $this->assertTrue($result['status']);
410         $this->assertEmpty($result['warnings']);
412         // Test posts have been marked as read.
413         $posts = mod_forum_external::get_forum_discussion_posts($discussion3->id, 'modified', 'DESC');
414         $posts = external_api::clean_returnvalue(mod_forum_external::get_forum_discussion_posts_returns(), $posts);
415         foreach ($posts['posts'] as $post) {
416             $this->assertTrue($post['postread']);
417         }
419         // Check we receive 0 unread posts.
420         forum_tp_count_forum_unread_posts($forum2cm, $course1, true);    // Reset static cache.
421         $result = mod_forum_external::get_forums_by_courses(array($course1->id));
422         $result = external_api::clean_returnvalue(mod_forum_external::get_forums_by_courses_returns(), $result);
423         foreach ($result as $f) {
424             if ($f['id'] == $forum2->id) {
425                 $this->assertEquals(0, $f['unreadpostscount']);
426             }
427         }
428     }
430     /**
431      * Test get forum posts
432      *
433      * Tests is similar to the get_forum_discussion_posts only utilizing the new return structure and entities
434      */
435     public function test_mod_forum_get_discussion_posts() {
436         global $CFG, $PAGE;
438         $this->resetAfterTest(true);
440         // Set the CFG variable to allow track forums.
441         $CFG->forum_trackreadposts = true;
443         $urlfactory = mod_forum\local\container::get_url_factory();
444         $legacyfactory = mod_forum\local\container::get_legacy_data_mapper_factory();
445         $entityfactory = mod_forum\local\container::get_entity_factory();
447         // Create a user who can track forums.
448         $record = new stdClass();
449         $record->trackforums = true;
450         $user1 = self::getDataGenerator()->create_user($record);
451         // Create a bunch of other users to post.
452         $user2 = self::getDataGenerator()->create_user();
453         $user2entity = $entityfactory->get_author_from_stdclass($user2);
454         $exporteduser2 = [
455             'id' => (int) $user2->id,
456             'fullname' => fullname($user2),
457             'groups' => [],
458             'urls' => [
459                 'profile' => $urlfactory->get_author_profile_url($user2entity),
460                 'profileimage' => $urlfactory->get_author_profile_image_url($user2entity),
461             ]
462         ];
463         $user2->fullname = $exporteduser2['fullname'];
465         $user3 = self::getDataGenerator()->create_user(['fullname' => "Mr Pants 1"]);
466         $user3entity = $entityfactory->get_author_from_stdclass($user3);
467         $exporteduser3 = [
468             'id' => (int) $user3->id,
469             'fullname' => fullname($user3),
470             'groups' => [],
471             'urls' => [
472                 'profile' => $urlfactory->get_author_profile_url($user3entity),
473                 'profileimage' => $urlfactory->get_author_profile_image_url($user3entity),
474             ]
475         ];
476         $user3->fullname = $exporteduser3['fullname'];
477         $forumgenerator = self::getDataGenerator()->get_plugin_generator('mod_forum');
479         // Set the first created user to the test user.
480         self::setUser($user1);
482         // Create course to add the module.
483         $course1 = self::getDataGenerator()->create_course();
485         // Forum with tracking off.
486         $record = new stdClass();
487         $record->course = $course1->id;
488         $record->trackingtype = FORUM_TRACKING_OFF;
489         $forum1 = self::getDataGenerator()->create_module('forum', $record);
490         $forum1context = context_module::instance($forum1->cmid);
492         // Forum with tracking enabled.
493         $record = new stdClass();
494         $record->course = $course1->id;
495         $forum2 = self::getDataGenerator()->create_module('forum', $record);
496         $forum2cm = get_coursemodule_from_id('forum', $forum2->cmid);
497         $forum2context = context_module::instance($forum2->cmid);
499         // Add discussions to the forums.
500         $record = new stdClass();
501         $record->course = $course1->id;
502         $record->userid = $user1->id;
503         $record->forum = $forum1->id;
504         $discussion1 = $forumgenerator->create_discussion($record);
506         $record = new stdClass();
507         $record->course = $course1->id;
508         $record->userid = $user2->id;
509         $record->forum = $forum1->id;
510         $discussion2 = $forumgenerator->create_discussion($record);
512         $record = new stdClass();
513         $record->course = $course1->id;
514         $record->userid = $user2->id;
515         $record->forum = $forum2->id;
516         $discussion3 = $forumgenerator->create_discussion($record);
518         // Add 2 replies to the discussion 1 from different users.
519         $record = new stdClass();
520         $record->discussion = $discussion1->id;
521         $record->parent = $discussion1->firstpost;
522         $record->userid = $user2->id;
523         $discussion1reply1 = $forumgenerator->create_post($record);
524         $filename = 'shouldbeanimage.jpg';
525         // Add a fake inline image to the post.
526         $filerecordinline = array(
527             'contextid' => $forum1context->id,
528             'component' => 'mod_forum',
529             'filearea'  => 'post',
530             'itemid'    => $discussion1reply1->id,
531             'filepath'  => '/',
532             'filename'  => $filename,
533         );
534         $fs = get_file_storage();
535         $timepost = time();
536         $fs->create_file_from_string($filerecordinline, 'image contents (not really)');
538         $record->parent = $discussion1reply1->id;
539         $record->userid = $user3->id;
540         $discussion1reply2 = $forumgenerator->create_post($record);
542         // Enrol the user in the  course.
543         $enrol = enrol_get_plugin('manual');
544         // Following line enrol and assign default role id to the user.
545         // So the user automatically gets mod/forum:viewdiscussion on all forums of the course.
546         $this->getDataGenerator()->enrol_user($user1->id, $course1->id);
547         $this->getDataGenerator()->enrol_user($user2->id, $course1->id);
549         // Delete one user, to test that we still receive posts by this user.
550         delete_user($user3);
552         // Create what we expect to be returned when querying the discussion.
553         $expectedposts = array(
554             'posts' => array(),
555             'ratinginfo' => array(
556                 'contextid' => $forum1context->id,
557                 'component' => 'mod_forum',
558                 'ratingarea' => 'post',
559                 'canviewall' => null,
560                 'canviewany' => null,
561                 'scales' => array(),
562                 'ratings' => array(),
563             ),
564             'warnings' => array(),
565         );
567         // User pictures are initially empty, we should get the links once the external function is called.
568         $isolatedurl = $urlfactory->get_discussion_view_url_from_discussion_id($discussion1reply2->discussion);
569         $isolatedurl->params(['parent' => $discussion1reply2->id]);
570         $expectedposts['posts'][] = array(
571             'id' => $discussion1reply2->id,
572             'discussionid' => $discussion1reply2->discussion,
573             'parentid' => $discussion1reply2->parent,
574             'hasparent' => true,
575             'timecreated' => $discussion1reply2->created,
576             'subject' => $discussion1reply2->subject,
577             'message' => file_rewrite_pluginfile_urls($discussion1reply2->message, 'pluginfile.php',
578                     $forum1context->id, 'mod_forum', 'post', $discussion1reply2->id),
579             'messageformat' => 1,   // This value is usually changed by external_format_text() function.
580             'unread' => null,
581             'isdeleted' => false,
582             'isprivatereply' => false,
583             'haswordcount' => false,
584             'wordcount' => null,
585             'author'=> $exporteduser3,
586             'attachments' => [],
587             'tags' => [],
588             'html' => [
589                 'rating' => null,
590                 'taglist' => null,
591                 'authorsubheading' => $forumgenerator->get_author_subheading_html((object)$exporteduser3, $discussion1reply2->created)
592             ],
593             'capabilities' => [
594                 'view' => 1,
595                 'edit' => 0,
596                 'delete' => 0,
597                 'split' => 0,
598                 'reply' => 1,
599                 'export' => 0,
600                 'controlreadstatus' => 0
601             ],
602             'urls' => [
603                 'view' => $urlfactory->get_view_post_url_from_post_id($discussion1reply2->discussion, $discussion1reply2->id),
604                 'viewisolated' => $isolatedurl->out(false),
605                 'viewparent' => $urlfactory->get_view_post_url_from_post_id($discussion1reply2->discussion, $discussion1reply2->parent),
606                 'edit' => null,
607                 'delete' =>null,
608                 'split' => null,
609                 'reply' => (new moodle_url('/mod/forum/post.php#mformforum', [
610                     'reply' => $discussion1reply2->id
611                 ]))->out(false),
612                 'export' => null,
613                 'markasread' => null,
614                 'markasunread' => null,
615                 'discuss' => $urlfactory->get_discussion_view_url_from_discussion_id($discussion1reply2->discussion),
616             ],
617         );
620         $isolatedurl = $urlfactory->get_discussion_view_url_from_discussion_id($discussion1reply1->discussion);
621         $isolatedurl->params(['parent' => $discussion1reply1->id]);
622         $expectedposts['posts'][] = array(
623             'id' => $discussion1reply1->id,
624             'discussionid' => $discussion1reply1->discussion,
625             'parentid' => $discussion1reply1->parent,
626             'hasparent' => true,
627             'timecreated' => $discussion1reply1->created,
628             'subject' => $discussion1reply1->subject,
629             'message' => file_rewrite_pluginfile_urls($discussion1reply1->message, 'pluginfile.php',
630                     $forum1context->id, 'mod_forum', 'post', $discussion1reply1->id),
631             'messageformat' => 1,   // This value is usually changed by external_format_text() function.
632             'unread' => null,
633             'isdeleted' => false,
634             'isprivatereply' => false,
635             'haswordcount' => false,
636             'wordcount' => null,
637             'author'=> $exporteduser2,
638             'attachments' => [],
639             'tags' => [],
640             'html' => [
641                 'rating' => null,
642                 'taglist' => null,
643                 'authorsubheading' => $forumgenerator->get_author_subheading_html((object)$exporteduser2, $discussion1reply1->created)
644             ],
645             'capabilities' => [
646                 'view' => 1,
647                 'edit' => 0,
648                 'delete' => 0,
649                 'split' => 0,
650                 'reply' => 1,
651                 'export' => 0,
652                 'controlreadstatus' => 0
653             ],
654             'urls' => [
655                 'view' => $urlfactory->get_view_post_url_from_post_id($discussion1reply1->discussion, $discussion1reply1->id),
656                 'viewisolated' => $isolatedurl->out(false),
657                 'viewparent' => $urlfactory->get_view_post_url_from_post_id($discussion1reply1->discussion, $discussion1reply1->parent),
658                 'edit' => null,
659                 'delete' =>null,
660                 'split' => null,
661                 'reply' => (new moodle_url('/mod/forum/post.php#mformforum', [
662                     'reply' => $discussion1reply1->id
663                 ]))->out(false),
664                 'export' => null,
665                 'markasread' => null,
666                 'markasunread' => null,
667                 'discuss' => $urlfactory->get_discussion_view_url_from_discussion_id($discussion1reply1->discussion),
668             ],
669         );
671         // Test a discussion with two additional posts (total 3 posts).
672         $posts = mod_forum_external::get_discussion_posts($discussion1->id, 'modified', 'DESC');
673         $posts = external_api::clean_returnvalue(mod_forum_external::get_discussion_posts_returns(), $posts);
674         $this->assertEquals(3, count($posts['posts']));
676         // Unset the initial discussion post.
677         array_pop($posts['posts']);
678         $this->assertEquals($expectedposts, $posts);
680         // Check we receive the unread count correctly on tracked forum.
681         forum_tp_count_forum_unread_posts($forum2cm, $course1, true);    // Reset static cache.
682         $result = mod_forum_external::get_forums_by_courses(array($course1->id));
683         $result = external_api::clean_returnvalue(mod_forum_external::get_forums_by_courses_returns(), $result);
684         foreach ($result as $f) {
685             if ($f['id'] == $forum2->id) {
686                 $this->assertEquals(1, $f['unreadpostscount']);
687             }
688         }
690         // Test discussion without additional posts. There should be only one post (the one created by the discussion).
691         $posts = mod_forum_external::get_discussion_posts($discussion2->id, 'modified', 'DESC');
692         $posts = external_api::clean_returnvalue(mod_forum_external::get_discussion_posts_returns(), $posts);
693         $this->assertEquals(1, count($posts['posts']));
695         // Test discussion tracking on not tracked forum.
696         $result = mod_forum_external::view_forum_discussion($discussion1->id);
697         $result = external_api::clean_returnvalue(mod_forum_external::view_forum_discussion_returns(), $result);
698         $this->assertTrue($result['status']);
699         $this->assertEmpty($result['warnings']);
701         // Test posts have not been marked as read.
702         $posts = mod_forum_external::get_discussion_posts($discussion1->id, 'modified', 'DESC');
703         $posts = external_api::clean_returnvalue(mod_forum_external::get_discussion_posts_returns(), $posts);
704         foreach ($posts['posts'] as $post) {
705             $this->assertNull($post['unread']);
706         }
708         // Test discussion tracking on tracked forum.
709         $result = mod_forum_external::view_forum_discussion($discussion3->id);
710         $result = external_api::clean_returnvalue(mod_forum_external::view_forum_discussion_returns(), $result);
711         $this->assertTrue($result['status']);
712         $this->assertEmpty($result['warnings']);
714         // Test posts have been marked as read.
715         $posts = mod_forum_external::get_discussion_posts($discussion3->id, 'modified', 'DESC');
716         $posts = external_api::clean_returnvalue(mod_forum_external::get_discussion_posts_returns(), $posts);
717         foreach ($posts['posts'] as $post) {
718             $this->assertFalse($post['unread']);
719         }
721         // Check we receive 0 unread posts.
722         forum_tp_count_forum_unread_posts($forum2cm, $course1, true);    // Reset static cache.
723         $result = mod_forum_external::get_forums_by_courses(array($course1->id));
724         $result = external_api::clean_returnvalue(mod_forum_external::get_forums_by_courses_returns(), $result);
725         foreach ($result as $f) {
726             if ($f['id'] == $forum2->id) {
727                 $this->assertEquals(0, $f['unreadpostscount']);
728             }
729         }
730     }
732     /**
733      * Test get forum posts
734      */
735     public function test_mod_forum_get_forum_discussion_posts_deleted() {
736         global $CFG, $PAGE;
738         $this->resetAfterTest(true);
739         $generator = self::getDataGenerator()->get_plugin_generator('mod_forum');
741         // Create a course and enrol some users in it.
742         $course1 = self::getDataGenerator()->create_course();
744         // Create users.
745         $user1 = self::getDataGenerator()->create_user();
746         $this->getDataGenerator()->enrol_user($user1->id, $course1->id);
747         $user2 = self::getDataGenerator()->create_user();
748         $this->getDataGenerator()->enrol_user($user2->id, $course1->id);
750         // Set the first created user to the test user.
751         self::setUser($user1);
753         // Create test data.
754         $forum1 = self::getDataGenerator()->create_module('forum', (object) [
755                 'course' => $course1->id,
756             ]);
757         $forum1context = context_module::instance($forum1->cmid);
759         // Add discussions to the forum.
760         $discussion = $generator->create_discussion((object) [
761                 'course' => $course1->id,
762                 'userid' => $user1->id,
763                 'forum' => $forum1->id,
764             ]);
766         $discussion2 = $generator->create_discussion((object) [
767                 'course' => $course1->id,
768                 'userid' => $user2->id,
769                 'forum' => $forum1->id,
770             ]);
772         // Add replies to the discussion.
773         $discussionreply1 = $generator->create_post((object) [
774                 'discussion' => $discussion->id,
775                 'parent' => $discussion->firstpost,
776                 'userid' => $user2->id,
777             ]);
778         $discussionreply2 = $generator->create_post((object) [
779                 'discussion' => $discussion->id,
780                 'parent' => $discussionreply1->id,
781                 'userid' => $user2->id,
782                 'subject' => '',
783                 'message' => '',
784                 'messageformat' => FORMAT_PLAIN,
785                 'deleted' => 1,
786             ]);
787         $discussionreply3 = $generator->create_post((object) [
788                 'discussion' => $discussion->id,
789                 'parent' => $discussion->firstpost,
790                 'userid' => $user2->id,
791             ]);
793         // Test where some posts have been marked as deleted.
794         $posts = mod_forum_external::get_forum_discussion_posts($discussion->id, 'modified', 'DESC');
795         $posts = external_api::clean_returnvalue(mod_forum_external::get_forum_discussion_posts_returns(), $posts);
796         $deletedsubject = get_string('privacy:request:delete:post:subject', 'mod_forum');
797         $deletedmessage = get_string('privacy:request:delete:post:message', 'mod_forum');
799         foreach ($posts['posts'] as $post) {
800             if ($post['id'] == $discussionreply2->id) {
801                 $this->assertTrue($post['deleted']);
802                 $this->assertEquals($deletedsubject, $post['subject']);
803                 $this->assertEquals($deletedmessage, $post['message']);
804             } else {
805                 $this->assertFalse($post['deleted']);
806                 $this->assertNotEquals($deletedsubject, $post['subject']);
807                 $this->assertNotEquals($deletedmessage, $post['message']);
808             }
809         }
810     }
812     /**
813      * Test get forum posts (qanda forum)
814      */
815     public function test_mod_forum_get_forum_discussion_posts_qanda() {
816         global $CFG, $DB;
818         $this->resetAfterTest(true);
820         $record = new stdClass();
821         $user1 = self::getDataGenerator()->create_user($record);
822         $user2 = self::getDataGenerator()->create_user();
824         // Set the first created user to the test user.
825         self::setUser($user1);
827         // Create course to add the module.
828         $course1 = self::getDataGenerator()->create_course();
829         $this->getDataGenerator()->enrol_user($user1->id, $course1->id);
830         $this->getDataGenerator()->enrol_user($user2->id, $course1->id);
832         // Forum with tracking off.
833         $record = new stdClass();
834         $record->course = $course1->id;
835         $record->type = 'qanda';
836         $forum1 = self::getDataGenerator()->create_module('forum', $record);
837         $forum1context = context_module::instance($forum1->cmid);
839         // Add discussions to the forums.
840         $record = new stdClass();
841         $record->course = $course1->id;
842         $record->userid = $user2->id;
843         $record->forum = $forum1->id;
844         $discussion1 = self::getDataGenerator()->get_plugin_generator('mod_forum')->create_discussion($record);
846         // Add 1 reply (not the actual user).
847         $record = new stdClass();
848         $record->discussion = $discussion1->id;
849         $record->parent = $discussion1->firstpost;
850         $record->userid = $user2->id;
851         $discussion1reply1 = self::getDataGenerator()->get_plugin_generator('mod_forum')->create_post($record);
853         // We still see only the original post.
854         $posts = mod_forum_external::get_forum_discussion_posts($discussion1->id, 'modified', 'DESC');
855         $posts = external_api::clean_returnvalue(mod_forum_external::get_forum_discussion_posts_returns(), $posts);
856         $this->assertEquals(1, count($posts['posts']));
858         // Add a new reply, the user is going to be able to see only the original post and their new post.
859         $record = new stdClass();
860         $record->discussion = $discussion1->id;
861         $record->parent = $discussion1->firstpost;
862         $record->userid = $user1->id;
863         $discussion1reply2 = self::getDataGenerator()->get_plugin_generator('mod_forum')->create_post($record);
865         $posts = mod_forum_external::get_forum_discussion_posts($discussion1->id, 'modified', 'DESC');
866         $posts = external_api::clean_returnvalue(mod_forum_external::get_forum_discussion_posts_returns(), $posts);
867         $this->assertEquals(2, count($posts['posts']));
869         // Now, we can fake the time of the user post, so he can se the rest of the discussion posts.
870         $discussion1reply2->created -= $CFG->maxeditingtime * 2;
871         $DB->update_record('forum_posts', $discussion1reply2);
873         $posts = mod_forum_external::get_forum_discussion_posts($discussion1->id, 'modified', 'DESC');
874         $posts = external_api::clean_returnvalue(mod_forum_external::get_forum_discussion_posts_returns(), $posts);
875         $this->assertEquals(3, count($posts['posts']));
876     }
878     /**
879      * Test get forum discussions paginated
880      */
881     public function test_mod_forum_get_forum_discussions_paginated() {
882         global $USER, $CFG, $DB, $PAGE;
884         $this->resetAfterTest(true);
886         // Set the CFG variable to allow track forums.
887         $CFG->forum_trackreadposts = true;
889         // Create a user who can track forums.
890         $record = new stdClass();
891         $record->trackforums = true;
892         $user1 = self::getDataGenerator()->create_user($record);
893         // Create a bunch of other users to post.
894         $user2 = self::getDataGenerator()->create_user();
895         $user3 = self::getDataGenerator()->create_user();
896         $user4 = self::getDataGenerator()->create_user();
898         // Set the first created user to the test user.
899         self::setUser($user1);
901         // Create courses to add the modules.
902         $course1 = self::getDataGenerator()->create_course();
904         // First forum with tracking off.
905         $record = new stdClass();
906         $record->course = $course1->id;
907         $record->trackingtype = FORUM_TRACKING_OFF;
908         $forum1 = self::getDataGenerator()->create_module('forum', $record);
910         // Add discussions to the forums.
911         $record = new stdClass();
912         $record->course = $course1->id;
913         $record->userid = $user1->id;
914         $record->forum = $forum1->id;
915         $discussion1 = self::getDataGenerator()->get_plugin_generator('mod_forum')->create_discussion($record);
917         // Add three replies to the discussion 1 from different users.
918         $record = new stdClass();
919         $record->discussion = $discussion1->id;
920         $record->parent = $discussion1->firstpost;
921         $record->userid = $user2->id;
922         $discussion1reply1 = self::getDataGenerator()->get_plugin_generator('mod_forum')->create_post($record);
924         $record->parent = $discussion1reply1->id;
925         $record->userid = $user3->id;
926         $discussion1reply2 = self::getDataGenerator()->get_plugin_generator('mod_forum')->create_post($record);
928         $record->userid = $user4->id;
929         $discussion1reply3 = self::getDataGenerator()->get_plugin_generator('mod_forum')->create_post($record);
931         // Enrol the user in the first course.
932         $enrol = enrol_get_plugin('manual');
934         // We don't use the dataGenerator as we need to get the $instance2 to unenrol later.
935         $enrolinstances = enrol_get_instances($course1->id, true);
936         foreach ($enrolinstances as $courseenrolinstance) {
937             if ($courseenrolinstance->enrol == "manual") {
938                 $instance1 = $courseenrolinstance;
939                 break;
940             }
941         }
942         $enrol->enrol_user($instance1, $user1->id);
944         // Delete one user.
945         delete_user($user4);
947         // Assign capabilities to view discussions for forum 1.
948         $cm = get_coursemodule_from_id('forum', $forum1->cmid, 0, false, MUST_EXIST);
949         $context = context_module::instance($cm->id);
950         $newrole = create_role('Role 2', 'role2', 'Role 2 description');
951         $this->assignUserCapability('mod/forum:viewdiscussion', $context->id, $newrole);
953         // Create what we expect to be returned when querying the forums.
955         $post1 = $DB->get_record('forum_posts', array('id' => $discussion1->firstpost), '*', MUST_EXIST);
957         // User pictures are initially empty, we should get the links once the external function is called.
958         $expecteddiscussions = array(
959                 'id' => $discussion1->firstpost,
960                 'name' => $discussion1->name,
961                 'groupid' => $discussion1->groupid,
962                 'timemodified' => $discussion1reply3->created,
963                 'usermodified' => $discussion1reply3->userid,
964                 'timestart' => $discussion1->timestart,
965                 'timeend' => $discussion1->timeend,
966                 'discussion' => $discussion1->id,
967                 'parent' => 0,
968                 'userid' => $discussion1->userid,
969                 'created' => $post1->created,
970                 'modified' => $post1->modified,
971                 'mailed' => $post1->mailed,
972                 'subject' => $post1->subject,
973                 'message' => $post1->message,
974                 'messageformat' => $post1->messageformat,
975                 'messagetrust' => $post1->messagetrust,
976                 'attachment' => $post1->attachment,
977                 'totalscore' => $post1->totalscore,
978                 'mailnow' => $post1->mailnow,
979                 'userfullname' => fullname($user1),
980                 'usermodifiedfullname' => fullname($user4),
981                 'userpictureurl' => '',
982                 'usermodifiedpictureurl' => '',
983                 'numreplies' => 3,
984                 'numunread' => 0,
985                 'pinned' => FORUM_DISCUSSION_UNPINNED,
986                 'locked' => false,
987                 'canreply' => false,
988             );
990         // Call the external function passing forum id.
991         $discussions = mod_forum_external::get_forum_discussions_paginated($forum1->id);
992         $discussions = external_api::clean_returnvalue(mod_forum_external::get_forum_discussions_paginated_returns(), $discussions);
993         $expectedreturn = array(
994             'discussions' => array($expecteddiscussions),
995             'warnings' => array()
996         );
998         // Wait the theme to be loaded (the external_api call does that) to generate the user profiles.
999         $userpicture = new user_picture($user1);
1000         $userpicture->size = 1; // Size f1.
1001         $expectedreturn['discussions'][0]['userpictureurl'] = $userpicture->get_url($PAGE)->out(false);
1003         $userpicture = new user_picture($user4);
1004         $userpicture->size = 1; // Size f1.
1005         $expectedreturn['discussions'][0]['usermodifiedpictureurl'] = $userpicture->get_url($PAGE)->out(false);
1007         $this->assertEquals($expectedreturn, $discussions);
1009         // Call without required view discussion capability.
1010         $this->unassignUserCapability('mod/forum:viewdiscussion', $context->id, $newrole);
1011         try {
1012             mod_forum_external::get_forum_discussions_paginated($forum1->id);
1013             $this->fail('Exception expected due to missing capability.');
1014         } catch (moodle_exception $e) {
1015             $this->assertEquals('noviewdiscussionspermission', $e->errorcode);
1016         }
1018         // Unenrol user from second course.
1019         $enrol->unenrol_user($instance1, $user1->id);
1021         // Call for the second course we unenrolled the user from, make sure exception thrown.
1022         try {
1023             mod_forum_external::get_forum_discussions_paginated($forum1->id);
1024             $this->fail('Exception expected due to being unenrolled from the course.');
1025         } catch (moodle_exception $e) {
1026             $this->assertEquals('requireloginerror', $e->errorcode);
1027         }
1028     }
1030     /**
1031      * Test get forum discussions paginated (qanda forums)
1032      */
1033     public function test_mod_forum_get_forum_discussions_paginated_qanda() {
1035         $this->resetAfterTest(true);
1037         // Create courses to add the modules.
1038         $course = self::getDataGenerator()->create_course();
1040         $user1 = self::getDataGenerator()->create_user();
1041         $user2 = self::getDataGenerator()->create_user();
1043         // First forum with tracking off.
1044         $record = new stdClass();
1045         $record->course = $course->id;
1046         $record->type = 'qanda';
1047         $forum = self::getDataGenerator()->create_module('forum', $record);
1049         // Add discussions to the forums.
1050         $discussionrecord = new stdClass();
1051         $discussionrecord->course = $course->id;
1052         $discussionrecord->userid = $user2->id;
1053         $discussionrecord->forum = $forum->id;
1054         $discussion = self::getDataGenerator()->get_plugin_generator('mod_forum')->create_discussion($discussionrecord);
1056         self::setAdminUser();
1057         $discussions = mod_forum_external::get_forum_discussions_paginated($forum->id);
1058         $discussions = external_api::clean_returnvalue(mod_forum_external::get_forum_discussions_paginated_returns(), $discussions);
1060         $this->assertCount(1, $discussions['discussions']);
1061         $this->assertCount(0, $discussions['warnings']);
1063         self::setUser($user1);
1064         $this->getDataGenerator()->enrol_user($user1->id, $course->id);
1066         $discussions = mod_forum_external::get_forum_discussions_paginated($forum->id);
1067         $discussions = external_api::clean_returnvalue(mod_forum_external::get_forum_discussions_paginated_returns(), $discussions);
1069         $this->assertCount(1, $discussions['discussions']);
1070         $this->assertCount(0, $discussions['warnings']);
1072     }
1074     /**
1075      * Test add_discussion_post
1076      */
1077     public function test_add_discussion_post() {
1078         global $CFG;
1080         $this->resetAfterTest(true);
1082         $user = self::getDataGenerator()->create_user();
1083         $otheruser = self::getDataGenerator()->create_user();
1085         self::setAdminUser();
1087         // Create course to add the module.
1088         $course = self::getDataGenerator()->create_course(array('groupmode' => VISIBLEGROUPS, 'groupmodeforce' => 0));
1090         // Forum with tracking off.
1091         $record = new stdClass();
1092         $record->course = $course->id;
1093         $forum = self::getDataGenerator()->create_module('forum', $record);
1094         $cm = get_coursemodule_from_id('forum', $forum->cmid, 0, false, MUST_EXIST);
1095         $forumcontext = context_module::instance($forum->cmid);
1097         // Add discussions to the forums.
1098         $record = new stdClass();
1099         $record->course = $course->id;
1100         $record->userid = $user->id;
1101         $record->forum = $forum->id;
1102         $discussion = self::getDataGenerator()->get_plugin_generator('mod_forum')->create_discussion($record);
1104         // Try to post (user not enrolled).
1105         self::setUser($user);
1106         try {
1107             mod_forum_external::add_discussion_post($discussion->firstpost, 'some subject', 'some text here...');
1108             $this->fail('Exception expected due to being unenrolled from the course.');
1109         } catch (moodle_exception $e) {
1110             $this->assertEquals('requireloginerror', $e->errorcode);
1111         }
1113         $this->getDataGenerator()->enrol_user($user->id, $course->id);
1114         $this->getDataGenerator()->enrol_user($otheruser->id, $course->id);
1116         $createdpost = mod_forum_external::add_discussion_post($discussion->firstpost, 'some subject', 'some text here...');
1117         $createdpost = external_api::clean_returnvalue(mod_forum_external::add_discussion_post_returns(), $createdpost);
1119         $posts = mod_forum_external::get_forum_discussion_posts($discussion->id);
1120         $posts = external_api::clean_returnvalue(mod_forum_external::get_forum_discussion_posts_returns(), $posts);
1121         // We receive the discussion and the post.
1122         $this->assertEquals(2, count($posts['posts']));
1124         $tested = false;
1125         foreach ($posts['posts'] as $thispost) {
1126             if ($createdpost['postid'] == $thispost['id']) {
1127                 $this->assertEquals('some subject', $thispost['subject']);
1128                 $this->assertEquals('some text here...', $thispost['message']);
1129                 $tested = true;
1130             }
1131         }
1132         $this->assertTrue($tested);
1134         // Test inline and regular attachment in post
1135         // Create a file in a draft area for inline attachments.
1136         $draftidinlineattach = file_get_unused_draft_itemid();
1137         $draftidattach = file_get_unused_draft_itemid();
1138         self::setUser($user);
1139         $usercontext = context_user::instance($user->id);
1140         $filepath = '/';
1141         $filearea = 'draft';
1142         $component = 'user';
1143         $filenameimg = 'shouldbeanimage.txt';
1144         $filerecordinline = array(
1145             'contextid' => $usercontext->id,
1146             'component' => $component,
1147             'filearea'  => $filearea,
1148             'itemid'    => $draftidinlineattach,
1149             'filepath'  => $filepath,
1150             'filename'  => $filenameimg,
1151         );
1152         $fs = get_file_storage();
1154         // Create a file in a draft area for regular attachments.
1155         $filerecordattach = $filerecordinline;
1156         $attachfilename = 'attachment.txt';
1157         $filerecordattach['filename'] = $attachfilename;
1158         $filerecordattach['itemid'] = $draftidattach;
1159         $fs->create_file_from_string($filerecordinline, 'image contents (not really)');
1160         $fs->create_file_from_string($filerecordattach, 'simple text attachment');
1162         $options = array(array('name' => 'inlineattachmentsid', 'value' => $draftidinlineattach),
1163                          array('name' => 'attachmentsid', 'value' => $draftidattach));
1164         $dummytext = 'Here is an inline image: <img src="' . $CFG->wwwroot
1165                      . "/draftfile.php/{$usercontext->id}/user/draft/{$draftidinlineattach}/{$filenameimg}"
1166                      . '" alt="inlineimage">.';
1167         $createdpost = mod_forum_external::add_discussion_post($discussion->firstpost, 'new post inline attachment',
1168                                                                $dummytext, $options);
1169         $createdpost = external_api::clean_returnvalue(mod_forum_external::add_discussion_post_returns(), $createdpost);
1171         $posts = mod_forum_external::get_forum_discussion_posts($discussion->id);
1172         $posts = external_api::clean_returnvalue(mod_forum_external::get_forum_discussion_posts_returns(), $posts);
1173         // We receive the discussion and the post.
1174         // Can't guarantee order of posts during tests.
1175         $postfound = false;
1176         foreach ($posts['posts'] as $thispost) {
1177             if ($createdpost['postid'] == $thispost['id']) {
1178                 $this->assertEquals($createdpost['postid'], $thispost['id']);
1179                 $this->assertEquals($thispost['attachment'], 1, "There should be a non-inline attachment");
1180                 $this->assertCount(1, $thispost['attachments'], "There should be 1 attachment");
1181                 $this->assertEquals($thispost['attachments'][0]['filename'], $attachfilename, "There should be 1 attachment");
1182                 $this->assertContains('pluginfile.php', $thispost['message']);
1183                 $postfound = true;
1184                 break;
1185             }
1186         }
1188         $this->assertTrue($postfound);
1190         // Check not posting in groups the user is not member of.
1191         $group = $this->getDataGenerator()->create_group(array('courseid' => $course->id));
1192         groups_add_member($group->id, $otheruser->id);
1194         $forum = self::getDataGenerator()->create_module('forum', $record, array('groupmode' => SEPARATEGROUPS));
1195         $record->forum = $forum->id;
1196         $record->userid = $otheruser->id;
1197         $record->groupid = $group->id;
1198         $discussion = self::getDataGenerator()->get_plugin_generator('mod_forum')->create_discussion($record);
1200         try {
1201             mod_forum_external::add_discussion_post($discussion->firstpost, 'some subject', 'some text here...');
1202             $this->fail('Exception expected due to invalid permissions for posting.');
1203         } catch (moodle_exception $e) {
1204             $this->assertEquals('nopostforum', $e->errorcode);
1205         }
1207     }
1209     /*
1210      * Test add_discussion. A basic test since all the API functions are already covered by unit tests.
1211      */
1212     public function test_add_discussion() {
1213         global $CFG, $USER;
1214         $this->resetAfterTest(true);
1216         // Create courses to add the modules.
1217         $course = self::getDataGenerator()->create_course();
1219         $user1 = self::getDataGenerator()->create_user();
1220         $user2 = self::getDataGenerator()->create_user();
1222         // First forum with tracking off.
1223         $record = new stdClass();
1224         $record->course = $course->id;
1225         $record->type = 'news';
1226         $forum = self::getDataGenerator()->create_module('forum', $record);
1228         self::setUser($user1);
1229         $this->getDataGenerator()->enrol_user($user1->id, $course->id);
1231         try {
1232             mod_forum_external::add_discussion($forum->id, 'the subject', 'some text here...');
1233             $this->fail('Exception expected due to invalid permissions.');
1234         } catch (moodle_exception $e) {
1235             $this->assertEquals('cannotcreatediscussion', $e->errorcode);
1236         }
1238         self::setAdminUser();
1239         $createddiscussion = mod_forum_external::add_discussion($forum->id, 'the subject', 'some text here...');
1240         $createddiscussion = external_api::clean_returnvalue(mod_forum_external::add_discussion_returns(), $createddiscussion);
1242         $discussions = mod_forum_external::get_forum_discussions_paginated($forum->id);
1243         $discussions = external_api::clean_returnvalue(mod_forum_external::get_forum_discussions_paginated_returns(), $discussions);
1245         $this->assertCount(1, $discussions['discussions']);
1246         $this->assertCount(0, $discussions['warnings']);
1248         $this->assertEquals($createddiscussion['discussionid'], $discussions['discussions'][0]['discussion']);
1249         $this->assertEquals(-1, $discussions['discussions'][0]['groupid']);
1250         $this->assertEquals('the subject', $discussions['discussions'][0]['subject']);
1251         $this->assertEquals('some text here...', $discussions['discussions'][0]['message']);
1253         $discussion2pinned = mod_forum_external::add_discussion($forum->id, 'the pinned subject', 'some 2 text here...', -1,
1254                                                                 array('options' => array('name' => 'discussionpinned',
1255                                                                                          'value' => true)));
1256         $discussion3 = mod_forum_external::add_discussion($forum->id, 'the non pinnedsubject', 'some 3 text here...');
1257         $discussions = mod_forum_external::get_forum_discussions_paginated($forum->id);
1258         $discussions = external_api::clean_returnvalue(mod_forum_external::get_forum_discussions_paginated_returns(), $discussions);
1259         $this->assertCount(3, $discussions['discussions']);
1260         $this->assertEquals($discussion2pinned['discussionid'], $discussions['discussions'][0]['discussion']);
1262         // Test inline and regular attachment in new discussion
1263         // Create a file in a draft area for inline attachments.
1265         $fs = get_file_storage();
1267         $draftidinlineattach = file_get_unused_draft_itemid();
1268         $draftidattach = file_get_unused_draft_itemid();
1270         $usercontext = context_user::instance($USER->id);
1271         $filepath = '/';
1272         $filearea = 'draft';
1273         $component = 'user';
1274         $filenameimg = 'shouldbeanimage.txt';
1275         $filerecord = array(
1276             'contextid' => $usercontext->id,
1277             'component' => $component,
1278             'filearea'  => $filearea,
1279             'itemid'    => $draftidinlineattach,
1280             'filepath'  => $filepath,
1281             'filename'  => $filenameimg,
1282         );
1284         // Create a file in a draft area for regular attachments.
1285         $filerecordattach = $filerecord;
1286         $attachfilename = 'attachment.txt';
1287         $filerecordattach['filename'] = $attachfilename;
1288         $filerecordattach['itemid'] = $draftidattach;
1289         $fs->create_file_from_string($filerecord, 'image contents (not really)');
1290         $fs->create_file_from_string($filerecordattach, 'simple text attachment');
1292         $dummytext = 'Here is an inline image: <img src="' . $CFG->wwwroot .
1293                     "/draftfile.php/{$usercontext->id}/user/draft/{$draftidinlineattach}/{$filenameimg}" .
1294                     '" alt="inlineimage">.';
1296         $options = array(array('name' => 'inlineattachmentsid', 'value' => $draftidinlineattach),
1297                          array('name' => 'attachmentsid', 'value' => $draftidattach));
1298         $createddiscussion = mod_forum_external::add_discussion($forum->id, 'the inline attachment subject',
1299                                                                 $dummytext, -1, $options);
1300         $createddiscussion = external_api::clean_returnvalue(mod_forum_external::add_discussion_returns(), $createddiscussion);
1302         $discussions = mod_forum_external::get_forum_discussions_paginated($forum->id);
1303         $discussions = external_api::clean_returnvalue(mod_forum_external::get_forum_discussions_paginated_returns(), $discussions);
1305         $this->assertCount(4, $discussions['discussions']);
1306         $this->assertCount(0, $createddiscussion['warnings']);
1307         // Can't guarantee order of posts during tests.
1308         $postfound = false;
1309         foreach ($discussions['discussions'] as $thisdiscussion) {
1310             if ($createddiscussion['discussionid'] == $thisdiscussion['discussion']) {
1311                 $this->assertEquals($thisdiscussion['attachment'], 1, "There should be a non-inline attachment");
1312                 $this->assertCount(1, $thisdiscussion['attachments'], "There should be 1 attachment");
1313                 $this->assertEquals($thisdiscussion['attachments'][0]['filename'], $attachfilename, "There should be 1 attachment");
1314                 $this->assertNotContains('draftfile.php', $thisdiscussion['message']);
1315                 $this->assertContains('pluginfile.php', $thisdiscussion['message']);
1316                 $postfound = true;
1317                 break;
1318             }
1319         }
1321         $this->assertTrue($postfound);
1322     }
1324     /**
1325      * Test adding discussions in a course with gorups
1326      */
1327     public function test_add_discussion_in_course_with_groups() {
1328         global $CFG;
1330         $this->resetAfterTest(true);
1332         // Create course to add the module.
1333         $course = self::getDataGenerator()->create_course(array('groupmode' => VISIBLEGROUPS, 'groupmodeforce' => 0));
1334         $user = self::getDataGenerator()->create_user();
1335         $this->getDataGenerator()->enrol_user($user->id, $course->id);
1337         // Forum forcing separate gropus.
1338         $record = new stdClass();
1339         $record->course = $course->id;
1340         $forum = self::getDataGenerator()->create_module('forum', $record, array('groupmode' => SEPARATEGROUPS));
1342         // Try to post (user not enrolled).
1343         self::setUser($user);
1345         // The user is not enroled in any group, try to post in a forum with separate groups.
1346         try {
1347             mod_forum_external::add_discussion($forum->id, 'the subject', 'some text here...');
1348             $this->fail('Exception expected due to invalid group permissions.');
1349         } catch (moodle_exception $e) {
1350             $this->assertEquals('cannotcreatediscussion', $e->errorcode);
1351         }
1353         try {
1354             mod_forum_external::add_discussion($forum->id, 'the subject', 'some text here...', 0);
1355             $this->fail('Exception expected due to invalid group permissions.');
1356         } catch (moodle_exception $e) {
1357             $this->assertEquals('cannotcreatediscussion', $e->errorcode);
1358         }
1360         // Create a group.
1361         $group = $this->getDataGenerator()->create_group(array('courseid' => $course->id));
1363         // Try to post in a group the user is not enrolled.
1364         try {
1365             mod_forum_external::add_discussion($forum->id, 'the subject', 'some text here...', $group->id);
1366             $this->fail('Exception expected due to invalid group permissions.');
1367         } catch (moodle_exception $e) {
1368             $this->assertEquals('cannotcreatediscussion', $e->errorcode);
1369         }
1371         // Add the user to a group.
1372         groups_add_member($group->id, $user->id);
1374         // Try to post in a group the user is not enrolled.
1375         try {
1376             mod_forum_external::add_discussion($forum->id, 'the subject', 'some text here...', $group->id + 1);
1377             $this->fail('Exception expected due to invalid group.');
1378         } catch (moodle_exception $e) {
1379             $this->assertEquals('cannotcreatediscussion', $e->errorcode);
1380         }
1382         // Nost add the discussion using a valid group.
1383         $discussion = mod_forum_external::add_discussion($forum->id, 'the subject', 'some text here...', $group->id);
1384         $discussion = external_api::clean_returnvalue(mod_forum_external::add_discussion_returns(), $discussion);
1386         $discussions = mod_forum_external::get_forum_discussions_paginated($forum->id);
1387         $discussions = external_api::clean_returnvalue(mod_forum_external::get_forum_discussions_paginated_returns(), $discussions);
1389         $this->assertCount(1, $discussions['discussions']);
1390         $this->assertCount(0, $discussions['warnings']);
1391         $this->assertEquals($discussion['discussionid'], $discussions['discussions'][0]['discussion']);
1392         $this->assertEquals($group->id, $discussions['discussions'][0]['groupid']);
1394         // Now add a discussions without indicating a group. The function should guess the correct group.
1395         $discussion = mod_forum_external::add_discussion($forum->id, 'the subject', 'some text here...');
1396         $discussion = external_api::clean_returnvalue(mod_forum_external::add_discussion_returns(), $discussion);
1398         $discussions = mod_forum_external::get_forum_discussions_paginated($forum->id);
1399         $discussions = external_api::clean_returnvalue(mod_forum_external::get_forum_discussions_paginated_returns(), $discussions);
1401         $this->assertCount(2, $discussions['discussions']);
1402         $this->assertCount(0, $discussions['warnings']);
1403         $this->assertEquals($group->id, $discussions['discussions'][0]['groupid']);
1404         $this->assertEquals($group->id, $discussions['discussions'][1]['groupid']);
1406         // Enrol the same user in other group.
1407         $group2 = $this->getDataGenerator()->create_group(array('courseid' => $course->id));
1408         groups_add_member($group2->id, $user->id);
1410         // Now add a discussions without indicating a group. The function should guess the correct group (the first one).
1411         $discussion = mod_forum_external::add_discussion($forum->id, 'the subject', 'some text here...');
1412         $discussion = external_api::clean_returnvalue(mod_forum_external::add_discussion_returns(), $discussion);
1414         $discussions = mod_forum_external::get_forum_discussions_paginated($forum->id);
1415         $discussions = external_api::clean_returnvalue(mod_forum_external::get_forum_discussions_paginated_returns(), $discussions);
1417         $this->assertCount(3, $discussions['discussions']);
1418         $this->assertCount(0, $discussions['warnings']);
1419         $this->assertEquals($group->id, $discussions['discussions'][0]['groupid']);
1420         $this->assertEquals($group->id, $discussions['discussions'][1]['groupid']);
1421         $this->assertEquals($group->id, $discussions['discussions'][2]['groupid']);
1423     }
1425     /*
1426      * Test can_add_discussion. A basic test since all the API functions are already covered by unit tests.
1427      */
1428     public function test_can_add_discussion() {
1429         global $DB;
1430         $this->resetAfterTest(true);
1432         // Create courses to add the modules.
1433         $course = self::getDataGenerator()->create_course();
1435         $user = self::getDataGenerator()->create_user();
1437         // First forum with tracking off.
1438         $record = new stdClass();
1439         $record->course = $course->id;
1440         $record->type = 'news';
1441         $forum = self::getDataGenerator()->create_module('forum', $record);
1443         // User with no permissions to add in a news forum.
1444         self::setUser($user);
1445         $this->getDataGenerator()->enrol_user($user->id, $course->id);
1447         $result = mod_forum_external::can_add_discussion($forum->id);
1448         $result = external_api::clean_returnvalue(mod_forum_external::can_add_discussion_returns(), $result);
1449         $this->assertFalse($result['status']);
1450         $this->assertFalse($result['canpindiscussions']);
1451         $this->assertTrue($result['cancreateattachment']);
1453         // Disable attachments.
1454         $DB->set_field('forum', 'maxattachments', 0, array('id' => $forum->id));
1455         $result = mod_forum_external::can_add_discussion($forum->id);
1456         $result = external_api::clean_returnvalue(mod_forum_external::can_add_discussion_returns(), $result);
1457         $this->assertFalse($result['status']);
1458         $this->assertFalse($result['canpindiscussions']);
1459         $this->assertFalse($result['cancreateattachment']);
1460         $DB->set_field('forum', 'maxattachments', 1, array('id' => $forum->id));    // Enable attachments again.
1462         self::setAdminUser();
1463         $result = mod_forum_external::can_add_discussion($forum->id);
1464         $result = external_api::clean_returnvalue(mod_forum_external::can_add_discussion_returns(), $result);
1465         $this->assertTrue($result['status']);
1466         $this->assertTrue($result['canpindiscussions']);
1467         $this->assertTrue($result['cancreateattachment']);
1469     }
1471     /**
1472      * Test get forum posts discussions including rating information.
1473      */
1474     public function test_mod_forum_get_forum_discussion_rating_information() {
1475         global $DB, $CFG;
1476         require_once($CFG->dirroot . '/rating/lib.php');
1478         $this->resetAfterTest(true);
1480         $user1 = self::getDataGenerator()->create_user();
1481         $user2 = self::getDataGenerator()->create_user();
1482         $user3 = self::getDataGenerator()->create_user();
1483         $teacher = self::getDataGenerator()->create_user();
1485         // Create course to add the module.
1486         $course = self::getDataGenerator()->create_course();
1488         $studentrole = $DB->get_record('role', array('shortname' => 'student'));
1489         $teacherrole = $DB->get_record('role', array('shortname' => 'editingteacher'));
1490         $this->getDataGenerator()->enrol_user($user1->id, $course->id, $studentrole->id, 'manual');
1491         $this->getDataGenerator()->enrol_user($user2->id, $course->id, $studentrole->id, 'manual');
1492         $this->getDataGenerator()->enrol_user($user3->id, $course->id, $studentrole->id, 'manual');
1493         $this->getDataGenerator()->enrol_user($teacher->id, $course->id, $teacherrole->id, 'manual');
1495         // Create the forum.
1496         $record = new stdClass();
1497         $record->course = $course->id;
1498         // Set Aggregate type = Average of ratings.
1499         $record->assessed = RATING_AGGREGATE_AVERAGE;
1500         $record->scale = 100;
1501         $forum = self::getDataGenerator()->create_module('forum', $record);
1502         $context = context_module::instance($forum->cmid);
1504         // Add discussion to the forum.
1505         $record = new stdClass();
1506         $record->course = $course->id;
1507         $record->userid = $user1->id;
1508         $record->forum = $forum->id;
1509         $discussion = self::getDataGenerator()->get_plugin_generator('mod_forum')->create_discussion($record);
1511         // Retrieve the first post.
1512         $post = $DB->get_record('forum_posts', array('discussion' => $discussion->id));
1514         // Rate the discussion as user2.
1515         $rating1 = new stdClass();
1516         $rating1->contextid = $context->id;
1517         $rating1->component = 'mod_forum';
1518         $rating1->ratingarea = 'post';
1519         $rating1->itemid = $post->id;
1520         $rating1->rating = 50;
1521         $rating1->scaleid = 100;
1522         $rating1->userid = $user2->id;
1523         $rating1->timecreated = time();
1524         $rating1->timemodified = time();
1525         $rating1->id = $DB->insert_record('rating', $rating1);
1527         // Rate the discussion as user3.
1528         $rating2 = new stdClass();
1529         $rating2->contextid = $context->id;
1530         $rating2->component = 'mod_forum';
1531         $rating2->ratingarea = 'post';
1532         $rating2->itemid = $post->id;
1533         $rating2->rating = 100;
1534         $rating2->scaleid = 100;
1535         $rating2->userid = $user3->id;
1536         $rating2->timecreated = time() + 1;
1537         $rating2->timemodified = time() + 1;
1538         $rating2->id = $DB->insert_record('rating', $rating2);
1540         // Retrieve the rating for the post as student.
1541         $this->setUser($user1);
1542         $posts = mod_forum_external::get_forum_discussion_posts($discussion->id);
1543         $posts = external_api::clean_returnvalue(mod_forum_external::get_forum_discussion_posts_returns(), $posts);
1544         $this->assertCount(1, $posts['ratinginfo']['ratings']);
1545         $this->assertTrue($posts['ratinginfo']['ratings'][0]['canviewaggregate']);
1546         $this->assertFalse($posts['ratinginfo']['canviewall']);
1547         $this->assertFalse($posts['ratinginfo']['ratings'][0]['canrate']);
1548         $this->assertEquals(2, $posts['ratinginfo']['ratings'][0]['count']);
1549         $this->assertEquals(($rating1->rating + $rating2->rating) / 2, $posts['ratinginfo']['ratings'][0]['aggregate']);
1551         // Retrieve the rating for the post as teacher.
1552         $this->setUser($teacher);
1553         $posts = mod_forum_external::get_forum_discussion_posts($discussion->id);
1554         $posts = external_api::clean_returnvalue(mod_forum_external::get_forum_discussion_posts_returns(), $posts);
1555         $this->assertCount(1, $posts['ratinginfo']['ratings']);
1556         $this->assertTrue($posts['ratinginfo']['ratings'][0]['canviewaggregate']);
1557         $this->assertTrue($posts['ratinginfo']['canviewall']);
1558         $this->assertTrue($posts['ratinginfo']['ratings'][0]['canrate']);
1559         $this->assertEquals(2, $posts['ratinginfo']['ratings'][0]['count']);
1560         $this->assertEquals(($rating1->rating + $rating2->rating) / 2, $posts['ratinginfo']['ratings'][0]['aggregate']);
1561     }
1563     /**
1564      * Test mod_forum_get_forum_access_information.
1565      */
1566     public function test_mod_forum_get_forum_access_information() {
1567         global $DB;
1569         $this->resetAfterTest(true);
1571         $student = self::getDataGenerator()->create_user();
1572         $course = self::getDataGenerator()->create_course();
1573         // Create the forum.
1574         $record = new stdClass();
1575         $record->course = $course->id;
1576         $forum = self::getDataGenerator()->create_module('forum', $record);
1578         $studentrole = $DB->get_record('role', array('shortname' => 'student'));
1579         $this->getDataGenerator()->enrol_user($student->id, $course->id, $studentrole->id, 'manual');
1581         self::setUser($student);
1582         $result = mod_forum_external::get_forum_access_information($forum->id);
1583         $result = external_api::clean_returnvalue(mod_forum_external::get_forum_access_information_returns(), $result);
1585         // Check default values for capabilities.
1586         $enabledcaps = array('canviewdiscussion', 'canstartdiscussion', 'canreplypost', 'canviewrating', 'cancreateattachment',
1587             'canexportownpost', 'candeleteownpost', 'canallowforcesubscribe');
1589         unset($result['warnings']);
1590         foreach ($result as $capname => $capvalue) {
1591             if (in_array($capname, $enabledcaps)) {
1592                 $this->assertTrue($capvalue);
1593             } else {
1594                 $this->assertFalse($capvalue);
1595             }
1596         }
1597         // Now, unassign some capabilities.
1598         unassign_capability('mod/forum:deleteownpost', $studentrole->id);
1599         unassign_capability('mod/forum:allowforcesubscribe', $studentrole->id);
1600         array_pop($enabledcaps);
1601         array_pop($enabledcaps);
1602         accesslib_clear_all_caches_for_unit_testing();
1604         $result = mod_forum_external::get_forum_access_information($forum->id);
1605         $result = external_api::clean_returnvalue(mod_forum_external::get_forum_access_information_returns(), $result);
1606         unset($result['warnings']);
1607         foreach ($result as $capname => $capvalue) {
1608             if (in_array($capname, $enabledcaps)) {
1609                 $this->assertTrue($capvalue);
1610             } else {
1611                 $this->assertFalse($capvalue);
1612             }
1613         }
1614     }
1616     /**
1617      * Test add_discussion_post
1618      */
1619     public function test_add_discussion_post_private() {
1620         global $DB;
1622         $this->resetAfterTest(true);
1624         self::setAdminUser();
1626         // Create course to add the module.
1627         $course = self::getDataGenerator()->create_course();
1629         // Standard forum.
1630         $record = new stdClass();
1631         $record->course = $course->id;
1632         $forum = self::getDataGenerator()->create_module('forum', $record);
1633         $cm = get_coursemodule_from_id('forum', $forum->cmid, 0, false, MUST_EXIST);
1634         $forumcontext = context_module::instance($forum->cmid);
1635         $generator = self::getDataGenerator()->get_plugin_generator('mod_forum');
1637         // Create an enrol users.
1638         $student1 = self::getDataGenerator()->create_user();
1639         $this->getDataGenerator()->enrol_user($student1->id, $course->id, 'student');
1640         $student2 = self::getDataGenerator()->create_user();
1641         $this->getDataGenerator()->enrol_user($student2->id, $course->id, 'student');
1642         $teacher1 = self::getDataGenerator()->create_user();
1643         $this->getDataGenerator()->enrol_user($teacher1->id, $course->id, 'editingteacher');
1644         $teacher2 = self::getDataGenerator()->create_user();
1645         $this->getDataGenerator()->enrol_user($teacher2->id, $course->id, 'editingteacher');
1647         // Add a new discussion to the forum.
1648         self::setUser($student1);
1649         $record = new stdClass();
1650         $record->course = $course->id;
1651         $record->userid = $student1->id;
1652         $record->forum = $forum->id;
1653         $discussion = $generator->create_discussion($record);
1655         // Have the teacher reply privately.
1656         self::setUser($teacher1);
1657         $post = mod_forum_external::add_discussion_post($discussion->firstpost, 'some subject', 'some text here...', [
1658                 [
1659                     'name' => 'private',
1660                     'value' => true,
1661                 ],
1662             ]);
1663         $post = external_api::clean_returnvalue(mod_forum_external::add_discussion_post_returns(), $post);
1664         $privatereply = $DB->get_record('forum_posts', array('id' => $post['postid']));
1665         $this->assertEquals($student1->id, $privatereply->privatereplyto);
1666         // Bump the time of the private reply to ensure order.
1667         $privatereply->created++;
1668         $privatereply->modified = $privatereply->created;
1669         $DB->update_record('forum_posts', $privatereply);
1671         // The teacher will receive their private reply.
1672         self::setUser($teacher1);
1673         $posts = mod_forum_external::get_forum_discussion_posts($discussion->id);
1674         $posts = external_api::clean_returnvalue(mod_forum_external::get_forum_discussion_posts_returns(), $posts);
1675         $this->assertEquals(2, count($posts['posts']));
1676         $this->assertTrue($posts['posts'][0]['isprivatereply']);
1678         // Another teacher on the course will also receive the private reply.
1679         self::setUser($teacher2);
1680         $posts = mod_forum_external::get_forum_discussion_posts($discussion->id);
1681         $posts = external_api::clean_returnvalue(mod_forum_external::get_forum_discussion_posts_returns(), $posts);
1682         $this->assertEquals(2, count($posts['posts']));
1683         $this->assertTrue($posts['posts'][0]['isprivatereply']);
1685         // The student will receive the private reply.
1686         self::setUser($student1);
1687         $posts = mod_forum_external::get_forum_discussion_posts($discussion->id);
1688         $posts = external_api::clean_returnvalue(mod_forum_external::get_forum_discussion_posts_returns(), $posts);
1689         $this->assertEquals(2, count($posts['posts']));
1690         $this->assertTrue($posts['posts'][0]['isprivatereply']);
1692         // Another student will not receive the private reply.
1693         self::setUser($student2);
1694         $posts = mod_forum_external::get_forum_discussion_posts($discussion->id);
1695         $posts = external_api::clean_returnvalue(mod_forum_external::get_forum_discussion_posts_returns(), $posts);
1696         $this->assertEquals(1, count($posts['posts']));
1697         $this->assertFalse($posts['posts'][0]['isprivatereply']);
1699         // A user cannot reply to a private reply.
1700         self::setUser($teacher2);
1701         $this->expectException('coding_exception');
1702         $post = mod_forum_external::add_discussion_post($privatereply->id, 'some subject', 'some text here...', [
1703                 'options' => [
1704                     'name' => 'private',
1705                     'value' => false,
1706                 ],
1707             ]);
1708     }