availability/tests/info_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/>.
  16
  17 /**
  18  * Unit tests for info and subclasses.
  19  *
  20  * @package core_availability
  21  * @copyright 2014 The Open University
  22  * @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
  23  */
  24
  25 defined('MOODLE_INTERNAL') || die();
  26
  27 use core_availability\info;
  28 use core_availability\info_module;
  29 use core_availability\info_section;
  30
  31 /**
  32  * Unit tests for info and subclasses.
  33  *
  34  * @package core_availability
  35  * @copyright 2014 The Open University
  36  * @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
  37  */
  38 class info_testcase extends advanced_testcase {
  39     public function setUp() {
  40         // Load the mock condition so that it can be used.
  41         require_once(__DIR__ . '/fixtures/mock_condition.php');
  42     }
  43
  44     /**
  45      * Tests the info_module class (is_available, get_full_information).
  46      */
  47     public function test_info_module() {
  48         global $DB, $CFG;
  49
  50         // Create a course and pages.
  51         $CFG->enableavailability = 0;
  52         $this->setAdminUser();
  53         $this->resetAfterTest();
  54         $generator = $this->getDataGenerator();
  55         $course = $generator->create_course();
  56         $rec = array('course' => $course);
  57         $page1 = $generator->get_plugin_generator('mod_page')->create_instance($rec);
  58         $page2 = $generator->get_plugin_generator('mod_page')->create_instance($rec);
  59         $page3 = $generator->get_plugin_generator('mod_page')->create_instance($rec);
  60         $page4 = $generator->get_plugin_generator('mod_page')->create_instance($rec);
  61
  62         // Set up the availability option for the pages to mock options.
  63         $DB->set_field('course_modules', 'availability', '{"op":"|","show":true,"c":[' .
  64                 '{"type":"mock","a":false,"m":"grandmaster flash"}]}', array('id' => $page1->cmid));
  65         $DB->set_field('course_modules', 'availability', '{"op":"|","show":true,"c":[' .
  66                 '{"type":"mock","a":true,"m":"the furious five"}]}', array('id' => $page2->cmid));
  67
  68         // Third page is invalid. (Fourth has no availability settings.)
  69         $DB->set_field('course_modules', 'availability', '{{{', array('id' => $page3->cmid));
  70
  71         $modinfo = get_fast_modinfo($course);
  72         $cm1 = $modinfo->get_cm($page1->cmid);
  73         $cm2 = $modinfo->get_cm($page2->cmid);
  74         $cm3 = $modinfo->get_cm($page3->cmid);
  75         $cm4 = $modinfo->get_cm($page4->cmid);
  76
  77         // Do availability and full information checks.
  78         $info = new info_module($cm1);
  79         $information = '';
  80         $this->assertFalse($info->is_available($information));
  81         $this->assertEquals('SA: grandmaster flash', $information);
  82         $this->assertEquals('SA: [FULL]grandmaster flash', $info->get_full_information());
  83         $info = new info_module($cm2);
  84         $this->assertTrue($info->is_available($information));
  85         $this->assertEquals('', $information);
  86         $this->assertEquals('SA: [FULL]the furious five', $info->get_full_information());
  87
  88         // Check invalid one.
  89         $info = new info_module($cm3);
  90         $this->assertFalse($info->is_available($information));
  91         $debugging = $this->getDebuggingMessages();
  92         $this->resetDebugging();
  93         $this->assertEquals(1, count($debugging));
  94         $this->assertContains('Invalid availability', $debugging[0]->message);
  95
  96         // Check empty one.
  97         $info = new info_module($cm4);
  98         $this->assertTrue($info->is_available($information));
  99         $this->assertEquals('', $information);
 100         $this->assertEquals('', $info->get_full_information());
 101     }
 102
 103     /**
 104      * Tests the info_section class (is_available, get_full_information).
 105      */
 106     public function test_info_section() {
 107         global $DB;
 108
 109         // Create a course.
 110         $this->setAdminUser();
 111         $this->resetAfterTest();
 112         $generator = $this->getDataGenerator();
 113         $course = $generator->create_course(
 114                 array('numsections' => 4), array('createsections' => true));
 115
 116         // Set up the availability option for the sections to mock options.
 117         $DB->set_field('course_sections', 'availability', '{"op":"|","show":true,"c":[' .
 118                 '{"type":"mock","a":false,"m":"public"}]}',
 119                 array('course' => $course->id, 'section' => 1));
 120         $DB->set_field('course_sections', 'availability', '{"op":"|","show":true,"c":[' .
 121                 '{"type":"mock","a":true,"m":"enemy"}]}',
 122                 array('course' => $course->id, 'section' => 2));
 123
 124         // Third section is invalid. (Fourth has no availability setting.)
 125         $DB->set_field('course_sections', 'availability', '{{{',
 126                 array('course' => $course->id, 'section' => 3));
 127
 128         $modinfo = get_fast_modinfo($course);
 129         $sections = $modinfo->get_section_info_all();
 130
 131         // Do availability and full information checks.
 132         $info = new info_section($sections[1]);
 133         $information = '';
 134         $this->assertFalse($info->is_available($information));
 135         $this->assertEquals('SA: public', $information);
 136         $this->assertEquals('SA: [FULL]public', $info->get_full_information());
 137         $info = new info_section($sections[2]);
 138         $this->assertTrue($info->is_available($information));
 139         $this->assertEquals('', $information);
 140         $this->assertEquals('SA: [FULL]enemy', $info->get_full_information());
 141
 142         // Check invalid one.
 143         $info = new info_section($sections[3]);
 144         $this->assertFalse($info->is_available($information));
 145         $debugging = $this->getDebuggingMessages();
 146         $this->resetDebugging();
 147         $this->assertEquals(1, count($debugging));
 148         $this->assertContains('Invalid availability', $debugging[0]->message);
 149
 150         // Check empty one.
 151         $info = new info_section($sections[4]);
 152         $this->assertTrue($info->is_available($information));
 153         $this->assertEquals('', $information);
 154         $this->assertEquals('', $info->get_full_information());
 155     }
 156
 157     /**
 158      * Tests the is_user_visible() static function in info_module.
 159      */
 160     public function test_is_user_visible() {
 161         global $CFG, $DB;
 162         require_once($CFG->dirroot . '/course/lib.php');
 163         $this->resetAfterTest();
 164         $CFG->enableavailability = 0;
 165
 166         // Create a course and some pages:
 167         // 0. Invisible due to visible=0.
 168         // 1. Availability restriction (mock, set to fail).
 169         // 2. Availability restriction on section (mock, set to fail).
 170         // 3. Actually visible.
 171         $generator = $this->getDataGenerator();
 172         $course = $generator->create_course(
 173                 array('numsections' => 1), array('createsections' => true));
 174         $rec = array('course' => $course, );
 175         $pages = array();
 176         $pagegen = $generator->get_plugin_generator('mod_page');
 177         $pages[0] = $pagegen->create_instance($rec, array('visible' => 0));
 178         $pages[1] = $pagegen->create_instance($rec);
 179         $pages[2] = $pagegen->create_instance($rec);
 180         $pages[3] = $pagegen->create_instance($rec);
 181         $modinfo = get_fast_modinfo($course);
 182         $section = $modinfo->get_section_info(1);
 183         $cm = $modinfo->get_cm($pages[2]->cmid);
 184         moveto_module($cm, $section);
 185
 186         // Set the availability restrictions in database. The enableavailability
 187         // setting is off so these do not take effect yet.
 188         $notavailable = '{"op":"|","show":true,"c":[{"type":"mock","a":false}]}';
 189         $DB->set_field('course_sections', 'availability',
 190                 $notavailable, array('id' => $section->id));
 191         $DB->set_field('course_modules', 'availability',
 192                 $notavailable, array('id' => $pages[1]->cmid));
 193         get_fast_modinfo($course, 0, true);
 194
 195         // Set up 4 users - a teacher and student plus somebody who isn't even
 196         // on the course. Also going to use admin user and a spare student to
 197         // avoid cache problems.
 198         $roleids = $DB->get_records_menu('role', null, '', 'shortname, id');
 199         $teacher = $generator->create_user();
 200         $student = $generator->create_user();
 201         $student2 = $generator->create_user();
 202         $other = $generator->create_user();
 203         $admin = $DB->get_record('user', array('username' => 'admin'));
 204         $generator->enrol_user($teacher->id, $course->id, $roleids['teacher']);
 205         $generator->enrol_user($student->id, $course->id, $roleids['student']);
 206         $generator->enrol_user($student2->id, $course->id, $roleids['student']);
 207
 208         // Basic case when availability disabled, for visible item.
 209         $this->assertTrue(info_module::is_user_visible($pages[3]->cmid, $student->id, false));
 210
 211         // Specifying as an object should not make any queries.
 212         $cm = $DB->get_record('course_modules', array('id' => $pages[3]->cmid));
 213         $beforequeries = $DB->perf_get_queries();
 214         $this->assertTrue(info_module::is_user_visible($cm, $student->id, false));
 215         $this->assertEquals($beforequeries, $DB->perf_get_queries());
 216
 217         // Specifying as cm_info for correct user should not make any more queries
 218         // if we have already obtained dynamic data.
 219         $modinfo = get_fast_modinfo($course, $student->id);
 220         $cminfo = $modinfo->get_cm($cm->id);
 221         // This will obtain dynamic data.
 222         $name = $cminfo->name;
 223         $beforequeries = $DB->perf_get_queries();
 224         $this->assertTrue(info_module::is_user_visible($cminfo, $student->id, false));
 225         $this->assertEquals($beforequeries, $DB->perf_get_queries());
 226
 227         // Function does not care if you are in the course (unless $checkcourse).
 228         $this->assertTrue(info_module::is_user_visible($cm, $other->id, false));
 229
 230         // With $checkcourse, check for enrolled, not enrolled, and admin user.
 231         $this->assertTrue(info_module::is_user_visible($cm, $student->id, true));
 232         $this->assertFalse(info_module::is_user_visible($cm, $other->id, true));
 233         $this->assertTrue(info_module::is_user_visible($cm, $admin->id, true));
 234
 235         // With availability off, the student can access all except the
 236         // visible=0 one.
 237         $this->assertFalse(info_module::is_user_visible($pages[0]->cmid, $student->id, false));
 238         $this->assertTrue(info_module::is_user_visible($pages[1]->cmid, $student->id, false));
 239         $this->assertTrue(info_module::is_user_visible($pages[2]->cmid, $student->id, false));
 240
 241         // Teacher and admin can even access the visible=0 one.
 242         $this->assertTrue(info_module::is_user_visible($pages[0]->cmid, $teacher->id, false));
 243         $this->assertTrue(info_module::is_user_visible($pages[0]->cmid, $admin->id, false));
 244
 245         // Now enable availability (and clear cache).
 246         $CFG->enableavailability = true;
 247         get_fast_modinfo($course, 0, true);
 248
 249         // Student cannot access the activity restricted by its own or by the
 250         // section's availability.
 251         $this->assertFalse(info_module::is_user_visible($pages[1]->cmid, $student->id, false));
 252         $this->assertFalse(info_module::is_user_visible($pages[2]->cmid, $student->id, false));
 253     }
 254
 255     /**
 256      * Tests the convert_legacy_fields function used in restore.
 257      */
 258     public function test_convert_legacy_fields() {
 259         // Check with no availability conditions first.
 260         $rec = (object)array('availablefrom' => 0, 'availableuntil' => 0,
 261                 'groupingid' => 7, 'showavailability' => 1);
 262         $this->assertNull(info::convert_legacy_fields($rec, false));
 263
 264         // Check same list for a section.
 265         $this->assertEquals(
 266                 '{"op":"&","showc":[false],"c":[{"type":"grouping","id":7}]}',
 267                 info::convert_legacy_fields($rec, true));
 268
 269         // Check groupmembersonly with grouping.
 270         $rec->groupmembersonly = 1;
 271         $this->assertEquals(
 272                 '{"op":"&","showc":[false],"c":[{"type":"grouping","id":7}]}',
 273                 info::convert_legacy_fields($rec, false));
 274
 275         // Check groupmembersonly without grouping.
 276         $rec->groupingid = 0;
 277         $this->assertEquals(
 278                 '{"op":"&","showc":[false],"c":[{"type":"group"}]}',
 279                 info::convert_legacy_fields($rec, false));
 280
 281         // Check start date.
 282         $rec->groupmembersonly = 0;
 283         $rec->availablefrom = 123;
 284         $this->assertEquals(
 285                 '{"op":"&","showc":[true],"c":[{"type":"date","d":">=","t":123}]}',
 286                 info::convert_legacy_fields($rec, false));
 287
 288         // Start date with show = false.
 289         $rec->showavailability = 0;
 290         $this->assertEquals(
 291                 '{"op":"&","showc":[false],"c":[{"type":"date","d":">=","t":123}]}',
 292                 info::convert_legacy_fields($rec, false));
 293
 294         // End date.
 295         $rec->showavailability = 1;
 296         $rec->availablefrom = 0;
 297         $rec->availableuntil = 456;
 298         $this->assertEquals(
 299                 '{"op":"&","showc":[false],"c":[{"type":"date","d":"<","t":456}]}',
 300                 info::convert_legacy_fields($rec, false));
 301
 302         // All together now.
 303         $rec->groupingid = 7;
 304         $rec->groupmembersonly = 1;
 305         $rec->availablefrom = 123;
 306         $this->assertEquals(
 307                 '{"op":"&","showc":[false,true,false],"c":[' .
 308                 '{"type":"grouping","id":7},' .
 309                 '{"type":"date","d":">=","t":123},' .
 310                 '{"type":"date","d":"<","t":456}' .
 311                 ']}',
 312                 info::convert_legacy_fields($rec, false));
 313         $this->assertEquals(
 314                 '{"op":"&","showc":[false,true,false],"c":[' .
 315                 '{"type":"grouping","id":7},' .
 316                 '{"type":"date","d":">=","t":123},' .
 317                 '{"type":"date","d":"<","t":456}' .
 318                 ']}',
 319                 info::convert_legacy_fields($rec, false, true));
 320     }
 321
 322     /**
 323      * Tests the add_legacy_availability_condition function used in restore.
 324      */
 325     public function test_add_legacy_availability_condition() {
 326         // Completion condition tests.
 327         $rec = (object)array('sourcecmid' => 7, 'requiredcompletion' => 1);
 328         // No previous availability, show = true.
 329         $this->assertEquals(
 330                 '{"op":"&","showc":[true],"c":[{"type":"completion","cm":7,"e":1}]}',
 331                 info::add_legacy_availability_condition(null, $rec, true));
 332         // No previous availability, show = false.
 333         $this->assertEquals(
 334                 '{"op":"&","showc":[false],"c":[{"type":"completion","cm":7,"e":1}]}',
 335                 info::add_legacy_availability_condition(null, $rec, false));
 336
 337         // Existing availability.
 338         $before = '{"op":"&","showc":[true],"c":[{"type":"date","d":">=","t":70}]}';
 339         $this->assertEquals(
 340                 '{"op":"&","showc":[true,true],"c":['.
 341                 '{"type":"date","d":">=","t":70},' .
 342                 '{"type":"completion","cm":7,"e":1}' .
 343                 ']}',
 344                 info::add_legacy_availability_condition($before, $rec, true));
 345
 346         // Grade condition tests.
 347         $rec = (object)array('gradeitemid' => 3, 'grademin' => 7, 'grademax' => null);
 348         $this->assertEquals(
 349                 '{"op":"&","showc":[true],"c":[{"type":"grade","id":3,"min":7.00000}]}',
 350                 info::add_legacy_availability_condition(null, $rec, true));
 351         $rec->grademax = 8;
 352         $this->assertEquals(
 353                 '{"op":"&","showc":[true],"c":[{"type":"grade","id":3,"min":7.00000,"max":8.00000}]}',
 354                 info::add_legacy_availability_condition(null, $rec, true));
 355         unset($rec->grademax);
 356         unset($rec->grademin);
 357         $this->assertEquals(
 358                 '{"op":"&","showc":[true],"c":[{"type":"grade","id":3}]}',
 359                 info::add_legacy_availability_condition(null, $rec, true));
 360
 361         // Note: There is no need to test the grade condition with show
 362         // true/false and existing availability, because this uses the same
 363         // function.
 364     }
 365
 366     /**
 367      * Tests the add_legacy_availability_field_condition function used in restore.
 368      */
 369     public function test_add_legacy_availability_field_condition() {
 370         // User field, normal operator.
 371         $rec = (object)array('userfield' => 'email', 'shortname' => null,
 372                 'operator' => 'contains', 'value' => '@');
 373         $this->assertEquals(
 374                 '{"op":"&","showc":[true],"c":[' .
 375                 '{"type":"profile","op":"contains","sf":"email","v":"@"}]}',
 376                 info::add_legacy_availability_field_condition(null, $rec, true));
 377
 378         // User field, non-value operator.
 379         $rec = (object)array('userfield' => 'email', 'shortname' => null,
 380                 'operator' => 'isempty', 'value' => '');
 381         $this->assertEquals(
 382                 '{"op":"&","showc":[true],"c":[' .
 383                 '{"type":"profile","op":"isempty","sf":"email"}]}',
 384                 info::add_legacy_availability_field_condition(null, $rec, true));
 385
 386         // Custom field.
 387         $rec = (object)array('userfield' => null, 'shortname' => 'frogtype',
 388                 'operator' => 'isempty', 'value' => '');
 389         $this->assertEquals(
 390                 '{"op":"&","showc":[true],"c":[' .
 391                 '{"type":"profile","op":"isempty","cf":"frogtype"}]}',
 392                 info::add_legacy_availability_field_condition(null, $rec, true));
 393     }
 394
 395     /**
 396      * Tests the filter_user_list() and get_user_list_sql() functions.
 397      */
 398     public function test_filter_user_list() {
 399         global $CFG, $DB;
 400         require_once($CFG->dirroot . '/course/lib.php');
 401         $this->resetAfterTest();
 402         $CFG->enableavailability = true;
 403
 404         // Create a course with 2 sections and 2 pages and 3 users.
 405         // Availability is set up initially on the 'page/section 2' items.
 406         $generator = $this->getDataGenerator();
 407         $course = $generator->create_course(
 408                 array('numsections' => 2), array('createsections' => true));
 409         $u1 = $generator->create_user();
 410         $u2 = $generator->create_user();
 411         $u3 = $generator->create_user();
 412         $studentroleid = $DB->get_field('role', 'id', array('shortname' => 'student'), MUST_EXIST);
 413         $allusers = array($u1->id => $u1, $u2->id => $u2, $u3->id => $u3);
 414         $generator->enrol_user($u1->id, $course->id, $studentroleid);
 415         $generator->enrol_user($u2->id, $course->id, $studentroleid);
 416         $generator->enrol_user($u3->id, $course->id, $studentroleid);
 417
 418         // Page 2 allows access to users 2 and 3, while section 2 allows access
 419         // to users 1 and 2.
 420         $pagegen = $generator->get_plugin_generator('mod_page');
 421         $page = $pagegen->create_instance(array('course' => $course));
 422         $page2 = $pagegen->create_instance(array('course' => $course,
 423                 'availability' => '{"op":"|","show":true,"c":[{"type":"mock","filter":[' .
 424                 $u2->id . ',' . $u3->id . ']}]}'));
 425         $modinfo = get_fast_modinfo($course);
 426         $section = $modinfo->get_section_info(1);
 427         $section2 = $modinfo->get_section_info(2);
 428         $DB->set_field('course_sections', 'availability',
 429                 '{"op":"|","show":true,"c":[{"type":"mock","filter":[' . $u1->id . ',' . $u2->id .']}]}',
 430                 array('id' => $section2->id));
 431         moveto_module($modinfo->get_cm($page2->cmid), $section2);
 432
 433         // With no restrictions, returns full list.
 434         $info = new info_module($modinfo->get_cm($page->cmid));
 435         $this->assertEquals(array($u1->id, $u2->id, $u3->id),
 436                 array_keys($info->filter_user_list($allusers)));
 437         $this->assertEquals(array('', array()), $info->get_user_list_sql(true));
 438
 439         // Set an availability restriction in database for section 1.
 440         // For the section we set it so it doesn't support filters; for the
 441         // module we have a filter.
 442         $DB->set_field('course_sections', 'availability',
 443                 '{"op":"|","show":true,"c":[{"type":"mock","a":false}]}',
 444                 array('id' => $section->id));
 445         $DB->set_field('course_modules', 'availability',
 446                 '{"op":"|","show":true,"c":[{"type":"mock","filter":[' . $u3->id .']}]}',
 447                 array('id' => $page->cmid));
 448         rebuild_course_cache($course->id, true);
 449         $modinfo = get_fast_modinfo($course);
 450
 451         // Now it should work (for the module).
 452         $info = new info_module($modinfo->get_cm($page->cmid));
 453         $expected = array($u3->id);
 454         $this->assertEquals($expected,
 455                 array_keys($info->filter_user_list($allusers)));
 456         list ($sql, $params) = $info->get_user_list_sql();
 457         $result = $DB->get_fieldset_sql($sql, $params);
 458         sort($result);
 459         $this->assertEquals($expected, $result);
 460         $info = new info_section($modinfo->get_section_info(1));
 461         $this->assertEquals(array($u1->id, $u2->id, $u3->id),
 462                 array_keys($info->filter_user_list($allusers)));
 463         $this->assertEquals(array('', array()), $info->get_user_list_sql(true));
 464
 465         // With availability disabled, module returns full list too.
 466         $CFG->enableavailability = false;
 467         $info = new info_module($modinfo->get_cm($page->cmid));
 468         $this->assertEquals(array($u1->id, $u2->id, $u3->id),
 469                 array_keys($info->filter_user_list($allusers)));
 470         $this->assertEquals(array('', array()), $info->get_user_list_sql(true));
 471
 472         // Check the other section...
 473         $CFG->enableavailability = true;
 474         $info = new info_section($modinfo->get_section_info(2));
 475         $expected = array($u1->id, $u2->id);
 476         $this->assertEquals($expected, array_keys($info->filter_user_list($allusers)));
 477         list ($sql, $params) = $info->get_user_list_sql(true);
 478         $result = $DB->get_fieldset_sql($sql, $params);
 479         sort($result);
 480         $this->assertEquals($expected, $result);
 481
 482         // And the module in that section - which has combined the section and
 483         // module restrictions.
 484         $info = new info_module($modinfo->get_cm($page2->cmid));
 485         $expected = array($u2->id);
 486         $this->assertEquals($expected, array_keys($info->filter_user_list($allusers)));
 487         list ($sql, $params) = $info->get_user_list_sql(true);
 488         $result = $DB->get_fieldset_sql($sql, $params);
 489         sort($result);
 490         $this->assertEquals($expected, $result);
 491
 492         // If the students have viewhiddenactivities, they get past the module
 493         // restriction.
 494         role_change_permission($studentroleid, context_module::instance($page2->cmid),
 495                 'moodle/course:ignoreavailabilityrestrictions', CAP_ALLOW);
 496         $expected = array($u1->id, $u2->id);
 497         $this->assertEquals($expected, array_keys($info->filter_user_list($allusers)));
 498         list ($sql, $params) = $info->get_user_list_sql(true);
 499         $result = $DB->get_fieldset_sql($sql, $params);
 500         sort($result);
 501         $this->assertEquals($expected, $result);
 502
 503         // If they have viewhiddensections, they also get past the section
 504         // restriction.
 505         role_change_permission($studentroleid, context_course::instance($course->id),
 506                 'moodle/course:ignoreavailabilityrestrictions', CAP_ALLOW);
 507         $expected = array($u1->id, $u2->id, $u3->id);
 508         $this->assertEquals($expected, array_keys($info->filter_user_list($allusers)));
 509         list ($sql, $params) = $info->get_user_list_sql(true);
 510         $result = $DB->get_fieldset_sql($sql, $params);
 511         sort($result);
 512         $this->assertEquals($expected, $result);
 513     }
 514 }