2 // This file is part of Moodle - http://moodle.org/
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.
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.
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/>.
18 * Data generators for acceptance testing.
22 * @copyright 2012 David Monllaó
23 * @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
26 // NOTE: no MOODLE_INTERNAL test here, this file may be required by behat before including /config.php.
28 require_once(__DIR__ . '/../../behat/behat_base.php');
30 use Behat\Gherkin\Node\TableNode as TableNode;
31 use Behat\Behat\Exception\PendingException as PendingException;
34 * Class to set up quickly a Given environment.
36 * Acceptance tests are block-boxed, so this steps definitions should only
37 * be used to set up the test environment as we are not replicating user steps.
39 * All data generators should be in lib/testing/generator/*, shared between phpunit
40 * and behat and they should be called from here, if possible using the standard
41 * 'create_$elementname($options)' and if it's not possible (data generators arguments will not be
42 * always the same) or the element is not suitable to be a data generator, create a
43 * 'process_$elementname($options)' method and use the data generator from there if possible.
45 * @todo If the available elements list grows too much this class must be split into smaller pieces
48 * @copyright 2012 David Monllaó
49 * @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
51 class behat_data_generators extends behat_base {
53 const cap_allow = 'Allow';
54 const cap_prevent = 'Prevent';
55 const cap_prohibit = 'Prohibit';
58 * @var testing_data_generator
60 protected $datagenerator;
63 * Each element specifies:
64 * - The data generator sufix used.
65 * - The required fields.
66 * - The mapping between other elements references and database field names.
69 protected static $elements = array(
71 'datagenerator' => 'user',
72 'required' => array('username')
74 'categories' => array(
75 'datagenerator' => 'category',
76 'required' => array('idnumber'),
77 'switchids' => array('category' => 'parent')
80 'datagenerator' => 'course',
81 'required' => array('shortname'),
82 'switchids' => array('category' => 'category')
85 'datagenerator' => 'group',
86 'required' => array('idnumber', 'course'),
87 'switchids' => array('course' => 'courseid')
90 'datagenerator' => 'grouping',
91 'required' => array('idnumber', 'course'),
92 'switchids' => array('course' => 'courseid')
94 'course enrolments' => array(
95 'datagenerator' => 'enrol_user',
96 'required' => array('user', 'course', 'role'),
97 'switchids' => array('user' => 'userid', 'course' => 'courseid', 'role' => 'roleid')
100 'permission overrides' => array(
101 'datagenerator' => 'permission_override',
102 'required' => array('capability', 'permission', 'role', 'contextlevel', 'reference'),
103 'switchids' => array('role' => 'roleid')
105 'system role assigns' => array(
106 'datagenerator' => 'system_role_assign',
107 'required' => array('user', 'role'),
108 'switchids' => array('user' => 'userid', 'role' => 'roleid')
110 'role assigns' => array(
111 'datagenerator' => 'role_assign',
112 'required' => array('user', 'role', 'contextlevel', 'reference'),
113 'switchids' => array('user' => 'userid', 'role' => 'roleid')
115 'activities' => array(
116 'datagenerator' => 'activity',
117 'required' => array('activity', 'idnumber', 'course'),
118 'switchids' => array('course' => 'course')
120 'group members' => array(
121 'datagenerator' => 'group_member',
122 'required' => array('user', 'group'),
123 'switchids' => array('user' => 'userid', 'group' => 'groupid')
125 'grouping groups' => array(
126 'datagenerator' => 'grouping_group',
127 'required' => array('grouping', 'group'),
128 'switchids' => array('grouping' => 'groupingid', 'group' => 'groupid')
131 'datagenerator' => 'cohort',
132 'required' => array('idnumber')
137 * Creates the specified element. More info about available elements in http://docs.moodle.org/dev/Acceptance_testing#Fixtures.
139 * @Given /^the following "(?P<element_string>(?:[^"]|\\")*)" exists:$/
142 * @throws PendingException
143 * @param string $elementname The name of the entity to add
144 * @param TableNode $data
146 public function the_following_exists($elementname, TableNode $data) {
148 // Now that we need them require the data generators.
149 require_once(__DIR__ . '/../../testing/generator/lib.php');
151 if (empty(self::$elements[$elementname])) {
152 throw new PendingException($elementname . ' data generator is not implemented');
155 $this->datagenerator = testing_util::get_data_generator();
157 $elementdatagenerator = self::$elements[$elementname]['datagenerator'];
158 $requiredfields = self::$elements[$elementname]['required'];
159 if (!empty(self::$elements[$elementname]['switchids'])) {
160 $switchids = self::$elements[$elementname]['switchids'];
163 foreach ($data->getHash() as $elementdata) {
165 // Check if all the required fields are there.
166 foreach ($requiredfields as $requiredfield) {
167 if (!isset($elementdata[$requiredfield])) {
168 throw new Exception($elementname . ' requires the field ' . $requiredfield . ' to be specified');
172 // Switch from human-friendly references to ids.
173 if (isset($switchids)) {
174 foreach ($switchids as $element => $field) {
175 $methodname = 'get_' . $element . '_id';
177 // Not all the switch fields are required, default vars will be assigned by data generators.
178 if (isset($elementdata[$element])) {
179 // Temp $id var to avoid problems when $element == $field.
180 $id = $this->{$methodname}($elementdata[$element]);
181 unset($elementdata[$element]);
182 $elementdata[$field] = $id;
187 // Preprocess the entities that requires a special treatment.
188 if (method_exists($this, 'preprocess_' . $elementdatagenerator)) {
189 $elementdata = $this->{'preprocess_' . $elementdatagenerator}($elementdata);
193 $methodname = 'create_' . $elementdatagenerator;
194 if (method_exists($this->datagenerator, $methodname)) {
195 // Using data generators directly.
196 $this->datagenerator->{$methodname}($elementdata);
198 } else if (method_exists($this, 'process_' . $elementdatagenerator)) {
199 // Using an alternative to the direct data generator call.
200 $this->{'process_' . $elementdatagenerator}($elementdata);
202 throw new PendingException($elementname . ' data generator is not implemented');
209 * If password is not set it uses the username.
213 protected function preprocess_user($data) {
214 if (!isset($data['password'])) {
215 $data['password'] = $data['username'];
221 * Adapter to modules generator
222 * @throws Exception Custom exception for test writers
226 protected function process_activity($data) {
228 // The the_following_exists() method checks that the field exists.
229 $activityname = $data['activity'];
230 unset($data['activity']);
234 $this->datagenerator->create_module($activityname, $data);
235 } catch (coding_exception $e) {
236 throw new Exception('\'' . $activityname . '\' activity can not be added using this step,' .
237 ' use the step \'I add a "ACTIVITY_OR_RESOURCE_NAME_STRING" to section "SECTION_NUMBER"\' instead');
242 * Adapter to enrol_user() data generator.
247 protected function process_enrol_user($data) {
250 if (empty($data['roleid'])) {
251 throw new Exception('\'course enrolments\' requires the field \'role\' to be specified');
254 if (!isset($data['userid'])) {
255 throw new Exception('\'course enrolments\' requires the field \'user\' to be specified');
258 if (!isset($data['courseid'])) {
259 throw new Exception('\'course enrolments\' requires the field \'course\' to be specified');
262 if (!isset($data['enrol'])) {
263 $data['enrol'] = 'manual';
266 // If the provided course shortname is the site shortname we consider it a system role assign.
267 if ($data['courseid'] == $SITE->id) {
268 // Frontpage course assign.
269 $context = context_course::instance($data['courseid']);
270 role_assign($data['roleid'], $data['userid'], $context->id);
274 $this->datagenerator->enrol_user($data['userid'], $data['courseid'], $data['roleid'], $data['enrol']);
280 * Allows/denies a capability at the specified context
286 protected function process_permission_override($data) {
288 // Will throw an exception if it does not exist.
289 $context = $this->get_context($data['contextlevel'], $data['reference']);
291 switch ($data['permission']) {
292 case self::cap_allow:
293 $permission = CAP_ALLOW;
295 case self::cap_prevent:
296 $permission = CAP_PREVENT;
298 case self::cap_prohibit:
299 $permission = CAP_PROHIBIT;
302 throw new Exception('The \'' . $data['permission'] . '\' permission does not exist');
306 if (is_null(get_capability_info($data['capability']))) {
307 throw new Exception('The \'' . $data['capability'] . '\' capability does not exist');
310 role_change_permission($data['roleid'], $context, $data['capability'], $permission);
314 * Assigns a role to a user at system context
316 * Used by "system role assigns" can be deleted when
317 * system role assign will be deprecated in favour of
324 protected function process_system_role_assign($data) {
326 if (empty($data['roleid'])) {
327 throw new Exception('\'system role assigns\' requires the field \'role\' to be specified');
330 if (!isset($data['userid'])) {
331 throw new Exception('\'system role assigns\' requires the field \'user\' to be specified');
334 $context = context_system::instance();
336 $this->datagenerator->role_assign($data['roleid'], $data['userid'], $context->id);
340 * Assigns a role to a user at the specified context
346 protected function process_role_assign($data) {
348 if (empty($data['roleid'])) {
349 throw new Exception('\'role assigns\' requires the field \'role\' to be specified');
352 if (!isset($data['userid'])) {
353 throw new Exception('\'role assigns\' requires the field \'user\' to be specified');
356 if (empty($data['contextlevel'])) {
357 throw new Exception('\'role assigns\' requires the field \'contextlevel\' to be specified');
360 if (!isset($data['reference'])) {
361 throw new Exception('\'role assigns\' requires the field \'reference\' to be specified');
364 // Getting the context id.
365 $context = $this->get_context($data['contextlevel'], $data['reference']);
367 $this->datagenerator->role_assign($data['roleid'], $data['userid'], $context->id);
371 * Gets the user id from it's username.
373 * @param string $username
376 protected function get_user_id($username) {
379 if (!$id = $DB->get_field('user', 'id', array('username' => $username))) {
380 throw new Exception('The specified user with username "' . $username . '" does not exist');
386 * Gets the role id from it's shortname.
388 * @param string $roleshortname
391 protected function get_role_id($roleshortname) {
394 if (!$id = $DB->get_field('role', 'id', array('shortname' => $roleshortname))) {
395 throw new Exception('The specified role with shortname"' . $roleshortname . '" does not exist');
402 * Gets the category id from it's idnumber.
404 * @param string $idnumber
407 protected function get_category_id($idnumber) {
410 // If no category was specified use the data generator one.
411 if ($idnumber == false) {
415 if (!$id = $DB->get_field('course_categories', 'id', array('idnumber' => $idnumber))) {
416 throw new Exception('The specified category with idnumber "' . $idnumber . '" does not exist');
423 * Gets the course id from it's shortname.
425 * @param string $shortname
428 protected function get_course_id($shortname) {
431 if (!$id = $DB->get_field('course', 'id', array('shortname' => $shortname))) {
432 throw new Exception('The specified course with shortname"' . $shortname . '" does not exist');
438 * Gets the group id from it's idnumber.
440 * @param string $idnumber
443 protected function get_group_id($idnumber) {
446 if (!$id = $DB->get_field('groups', 'id', array('idnumber' => $idnumber))) {
447 throw new Exception('The specified group with idnumber "' . $idnumber . '" does not exist');
453 * Gets the grouping id from it's idnumber.
455 * @param string $idnumber
458 protected function get_grouping_id($idnumber) {
461 if (!$id = $DB->get_field('groupings', 'id', array('idnumber' => $idnumber))) {
462 throw new Exception('The specified grouping with idnumber "' . $idnumber . '" does not exist');
468 * Gets the internal context id from the context reference.
470 * The context reference changes depending on the context
471 * level, it can be the system, a user, a category, a course or
475 * @param string $levelname The context level string introduced by the test writer
476 * @param string $contextref The context reference introduced by the test writer
479 protected function get_context($levelname, $contextref) {
482 // Getting context levels and names (we will be using the English ones as it is the test site language).
483 $contextlevels = context_helper::get_all_levels();
484 $contextnames = array();
485 foreach ($contextlevels as $level => $classname) {
486 $contextnames[context_helper::get_level_name($level)] = $level;
489 if (empty($contextnames[$levelname])) {
490 throw new Exception('The specified "' . $levelname . '" context level does not exist');
492 $contextlevel = $contextnames[$levelname];
494 // Return it, we don't need to look for other internal ids.
495 if ($contextlevel == CONTEXT_SYSTEM) {
496 return context_system::instance();
499 switch ($contextlevel) {
502 $instanceid = $DB->get_field('user', 'id', array('username' => $contextref));
505 case CONTEXT_COURSECAT:
506 $instanceid = $DB->get_field('course_categories', 'id', array('idnumber' => $contextref));
510 $instanceid = $DB->get_field('course', 'id', array('shortname' => $contextref));
514 $instanceid = $DB->get_field('course_modules', 'id', array('idnumber' => $contextref));
521 $contextclass = $contextlevels[$contextlevel];
522 if (!$context = $contextclass::instance($instanceid, IGNORE_MISSING)) {
523 throw new Exception('The specified "' . $contextref . '" context reference does not exist');