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   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  // NOTE: no MOODLE_INTERNAL test here, this file may be required by behat before including /config.php.
  18  
  19  require_once (__DIR__ . '/behat_question_base.php');
  20  
  21  use Behat\Gherkin\Node\TableNode as TableNode;
  22  use Behat\Mink\Exception\ExpectationException as ExpectationException;
  23  use Behat\Mink\Exception\ElementNotFoundException as ElementNotFoundException;
  24  
  25  /**
  26   * Steps definitions related with the question bank management.
  27   *
  28   * @package    core_question
  29   * @category   test
  30   * @copyright  2013 David Monllaó
  31   * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
  32   */
  33  class behat_core_question extends behat_question_base {
  34  
  35      /**
  36       * Convert page names to URLs for steps like 'When I am on the "[page name]" page'.
  37       *
  38       * Recognised page names are:
  39       * | None so far!      |                                                              |
  40       *
  41       * @param string $page name of the page, with the component name removed e.g. 'Admin notification'.
  42       * @return moodle_url the corresponding URL.
  43       * @throws Exception with a meaningful error message if the specified page cannot be found.
  44       */
  45      protected function resolve_page_url(string $page): moodle_url {
  46          switch (strtolower($page)) {
  47              default:
  48                  throw new Exception('Unrecognised core_question page type "' . $page . '."');
  49          }
  50      }
  51  
  52      /**
  53       * Convert page names to URLs for steps like 'When I am on the "[identifier]" "[page type]" page'.
  54       *
  55       * Recognised page names are:
  56       * | pagetype               | name meaning               | description                              |
  57       * | course question bank   | Course name                | The question bank for a course           |
  58       * | course question import | Course name                | The import questions screen for a course |
  59       * | course question export | Course name                | The export questions screen for a course |
  60       * | preview                | Question name              | The screen to preview a question         |
  61       * | edit                   | Question name              | The screen to edit a question            |
  62       *
  63       * @param string $type identifies which type of page this is, e.g. 'Preview'.
  64       * @param string $identifier identifies the particular page, e.g. 'My question'.
  65       * @return moodle_url the corresponding URL.
  66       * @throws Exception with a meaningful error message if the specified page cannot be found.
  67       */
  68      protected function resolve_page_instance_url(string $type, string $identifier): moodle_url {
  69          switch (strtolower($type)) {
  70              case 'course question bank':
  71                  return new moodle_url('/question/edit.php',
  72                          ['courseid' => $this->get_course_id($identifier)]);
  73  
  74              case 'course question categories':
  75                  return new moodle_url('/question/bank/managecategories/category.php',
  76                          ['courseid' => $this->get_course_id($identifier)]);
  77  
  78              case 'course question import':
  79                  return new moodle_url('/question/bank/importquestions/import.php',
  80                          ['courseid' => $this->get_course_id($identifier)]);
  81  
  82              case 'course question export':
  83                  return new moodle_url('/question/bank/exportquestions/export.php',
  84                          ['courseid' => $this->get_course_id($identifier)]);
  85  
  86              case 'preview':
  87                  [$questionid, $otheridtype, $otherid] = $this->find_question_by_name($identifier);
  88                  return new moodle_url('/question/bank/previewquestion/preview.php',
  89                          ['id' => $questionid, $otheridtype => $otherid]);
  90  
  91              case 'edit':
  92                  [$questionid, $otheridtype, $otherid] = $this->find_question_by_name($identifier);
  93                  return new moodle_url('/question/bank/editquestion/question.php',
  94                          ['id' => $questionid, $otheridtype => $otherid]);
  95  
  96              default:
  97                  throw new Exception('Unrecognised core_question page type "' . $type . '."');
  98          }
  99      }
 100  
 101      /**
 102       * Find a question, and where it is, from the question name.
 103       *
 104       * This is a helper used by resolve_page_instance_url.
 105       *
 106       * @param string $questionname
 107       * @return array with three elemnets, int question id, a string 'cmid' or 'courseid',
 108       *     and int either cmid or courseid as applicable.
 109       */
 110      protected function find_question_by_name(string $questionname): array {
 111          global $DB;
 112          $questionid = $DB->get_field('question', 'id', ['name' => $questionname], MUST_EXIST);
 113          $question = question_bank::load_question_data($questionid);
 114          $context = context_helper::instance_by_id($question->contextid);
 115  
 116          if ($context->contextlevel == CONTEXT_MODULE) {
 117              return [$questionid, 'cmid', $context->instanceid];
 118          } else if ($context->contextlevel == CONTEXT_COURSE) {
 119              return [$questionid, 'courseid', $context->instanceid];
 120          } else {
 121              throw new coding_exception('Unsupported context level ' . $context->contextlevel);
 122          }
 123      }
 124  
 125      /**
 126       * Creates a question in the current course questions bank with the provided data.
 127       * This step can only be used when creating question types composed by a single form.
 128       *
 129       * @Given /^I add a "(?P<question_type_name_string>(?:[^"]|\\")*)" question filling the form with:$/
 130       * @param string $questiontypename The question type name
 131       * @param TableNode $questiondata The data to fill the question type form.
 132       */
 133      public function i_add_a_question_filling_the_form_with($questiontypename, TableNode $questiondata) {
 134          // Click on create question.
 135          $this->execute('behat_forms::press_button', get_string('createnewquestion', 'question'));
 136  
 137          // Add question.
 138          $this->finish_adding_question($questiontypename, $questiondata);
 139      }
 140  
 141      /**
 142       * Checks the state of the specified question.
 143       *
 144       * @Then /^the state of "(?P<question_description_string>(?:[^"]|\\")*)" question is shown as "(?P<state_string>(?:[^"]|\\")*)"$/
 145       * @throws ExpectationException
 146       * @throws ElementNotFoundException
 147       * @param string $questiondescription
 148       * @param string $state
 149       */
 150      public function the_state_of_question_is_shown_as($questiondescription, $state) {
 151  
 152          // Using xpath literal to avoid quotes problems.
 153          $questiondescriptionliteral = behat_context_helper::escape($questiondescription);
 154          $stateliteral = behat_context_helper::escape($state);
 155  
 156          // Split in two checkings to give more feedback in case of exception.
 157          $exception = new ElementNotFoundException($this->getSession(), 'Question "' . $questiondescription . '" ');
 158          $questionxpath = "//div[contains(concat(' ', normalize-space(@class), ' '), ' que ')]" .
 159                  "[contains(div[@class='content']/div[contains(concat(' ', normalize-space(@class), ' '), ' formulation ')]," .
 160                  "{$questiondescriptionliteral})]";
 161          $this->find('xpath', $questionxpath, $exception);
 162  
 163          $exception = new ExpectationException('Question "' . $questiondescription .
 164                  '" state is not "' . $state . '"', $this->getSession());
 165          $xpath = $questionxpath . "/div[@class='info']/div[@class='state' and contains(., {$stateliteral})]";
 166          $this->find('xpath', $xpath, $exception);
 167      }
 168  
 169      /**
 170       * Activates a particular action on a particular question in the question bank UI.
 171       *
 172       * @When I choose :action action for :questionname in the question bank
 173       * @param string $action the label for the action you want to activate.
 174       * @param string $questionname the question name.
 175       */
 176      public function i_action_the_question($action, $questionname) {
 177          $this->execute('behat_action_menu::i_choose_in_the_named_menu_in_container', [
 178              $action,
 179              get_string('edit', 'core'),
 180              $questionname,
 181              'table_row',
 182          ]);
 183      }
 184  
 185      /**
 186       * Checks that action does exist for a question.
 187       *
 188       * @Then the :action action should exist for the :questionname question in the question bank
 189       * @param string $action the label for the action you want to activate.
 190       * @param string $questionname the question name.
 191       */
 192      public function action_exists($action, $questionname) {
 193          $this->execute('behat_action_menu::item_should_exist_in_the', [
 194              $action,
 195              get_string('edit', 'core'),
 196              $questionname,
 197              'table_row',
 198          ]);
 199      }
 200  
 201      /**
 202       * Checks that action does not exist for a question.
 203       *
 204       * @Then the :action action should not exist for the :questionname question in the question bank
 205       * @param string $action the label for the action you want to activate.
 206       * @param string $questionname the question name.
 207       */
 208      public function action_not_exists($action, $questionname) {
 209          $this->execute('behat_action_menu::item_should_not_exist_in_the', [
 210              $action,
 211              get_string('edit', 'core'),
 212              $questionname,
 213              'table_row',
 214          ]);
 215      }
 216  
 217      /**
 218       * A particular bulk action is visible in the question bank UI.
 219       *
 220       * @When I should see question bulk action :action
 221       * @param string $action the value of the input for the action.
 222       */
 223      public function i_should_see_question_bulk_action($action) {
 224          // Check if its visible.
 225          $this->execute("behat_general::should_be_visible",
 226              ["#bulkactionsui-container input[name='$action']", "css_element"]);
 227      }
 228  
 229      /**
 230       * A particular bulk action should not be visible in the question bank UI.
 231       *
 232       * @When I should not see question bulk action :action
 233       * @param string $action the value of the input for the action.
 234       */
 235      public function i_should_not_see_question_bulk_action($action) {
 236          // Check if its visible.
 237          $this->execute("behat_general::should_not_be_visible",
 238              ["#bulkactionsui-container input[name='$action']", "css_element"]);
 239      }
 240  
 241      /**
 242       * A click on a particular bulk action in the question bank UI.
 243       *
 244       * @When I click on question bulk action :action
 245       * @param string $action the value of the input for the action.
 246       */
 247      public function i_click_on_question_bulk_action($action) {
 248          // Click the bulk action.
 249          $this->execute("behat_general::i_click_on",
 250              ["#bulkactionsui-container input[name='$action']", "css_element"]);
 251      }
 252  
 253      /**
 254       * Change the question type of the give question to a type that does not exist.
 255       *
 256       * This is useful for testing robustness of the code when a question type
 257       * has been uninstalled, even though there are still questions of that type
 258       * or attempts at them.
 259       *
 260       * In order to set things up, you probably need to start by generating
 261       * questions of a valid type, then using this to change the type once the
 262       * data is created.
 263       *
 264       * @Given question :questionname is changed to simulate being of an uninstalled type
 265       * @param string $questionname the question name.
 266       */
 267      public function change_question_to_nonexistant_type($questionname) {
 268          global $DB;
 269          [$id] = $this->find_question_by_name($questionname);
 270  
 271          // Check our assumption.
 272          $nonexistanttype = 'invalidqtype';
 273          if (question_bank::is_qtype_installed($nonexistanttype)) {
 274              throw new coding_exception('This code assumes that the qtype_' . $nonexistanttype .
 275                      ' is not a valid plugin name, but that plugin now seems to exist!');
 276          }
 277  
 278          $DB->set_field('question', 'qtype', $nonexistanttype, ['id' => $id]);
 279          question_bank::notify_question_edited($id);
 280      }
 281  
 282      /**
 283       * Forcibly delete a question from the database.
 284       *
 285       * This is useful for testing robustness of the code when a question
 286       * record is no longer in the database, even though it is referred to.
 287       * Obviously, this should never happen, but it has been known to in the past
 288       * and so we sometimes need to be able to test the code can handle this situation.
 289       *
 290       * In order to set things up, you probably need to start by generating
 291       * a valid questions, then using this to remove it once the data is created.
 292       *
 293       * @Given question :questionname no longer exists in the database
 294       * @param string $questionname the question name.
 295       */
 296      public function remove_question_from_db($questionname) {
 297          global $DB;
 298          [$id] = $this->find_question_by_name($questionname);
 299          $DB->delete_records('question', ['id' => $id]);
 300          question_bank::notify_question_edited($id);
 301      }
 302  }