[Summary view] [Print] [Text view]

   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 (some of) question/type/calculated/questiontype.php.
  19   *
  20   * @package    qtype_calculated
  21   * @copyright  2012 The Open University
  22   * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
  23   */
  24  
  25  
  26  defined('MOODLE_INTERNAL') || die();
  27  
  28  global $CFG;
  29  require_once($CFG->dirroot . '/question/type/calculated/questiontype.php');
  30  require_once($CFG->dirroot . '/question/type/calculated/tests/helper.php');
  31  
  32  
  33  /**
  34   * Unit tests for question/type/calculated/questiontype.php.
  35   *
  36   * @copyright  2012 The Open University
  37   * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
  38   */
  39  class qtype_calculated_test extends advanced_testcase {
  40      public static $includecoverage = array(
  41          'question/type/questiontypebase.php',
  42          'question/type/calculated/questiontype.php'
  43      );
  44  
  45      protected $tolerance = 0.00000001;
  46      protected $qtype;
  47  
  48      protected function setUp() {
  49          $this->qtype = new qtype_calculated();
  50      }
  51  
  52      protected function tearDown() {
  53          $this->qtype = null;
  54      }
  55  
  56      public function test_name() {
  57          $this->assertEquals($this->qtype->name(), 'calculated');
  58      }
  59  
  60      public function test_can_analyse_responses() {
  61          $this->assertTrue($this->qtype->can_analyse_responses());
  62      }
  63  
  64      public function test_get_random_guess_score() {
  65          $q = test_question_maker::get_question_data('calculated');
  66          $q->options->answers[17]->fraction = 0.1;
  67          $this->assertEquals(0.1, $this->qtype->get_random_guess_score($q));
  68      }
  69  
  70      protected function get_possible_response($ans, $tolerance, $type) {
  71          $a = new stdClass();
  72          $a->answer = $ans;
  73          $a->tolerance = $tolerance;
  74          $a->tolerancetype = get_string($type, 'qtype_numerical');
  75          return get_string('answerwithtolerance', 'qtype_calculated', $a);
  76      }
  77  
  78      public function test_get_possible_responses() {
  79          $q = test_question_maker::get_question_data('calculated');
  80  
  81          $this->assertEquals(array(
  82              $q->id => array(
  83                  13 => new question_possible_response(
  84                          $this->get_possible_response('{a} + {b}', 0.001, 'nominal'), 1.0),
  85                  14 => new question_possible_response(
  86                          $this->get_possible_response('{a} - {b}', 0.001, 'nominal'), 0.0),
  87                  17 => new question_possible_response('*', 0.0),
  88                  null => question_possible_response::no_response()
  89              ),
  90          ), $this->qtype->get_possible_responses($q));
  91      }
  92  
  93      public function test_get_possible_responses_no_star() {
  94          $q = test_question_maker::get_question_data('calculated');
  95          unset($q->options->answers[17]);
  96  
  97          $this->assertEquals(array(
  98              $q->id => array(
  99                  13 => new question_possible_response(
 100                          $this->get_possible_response('{a} + {b}', 0.001, 'nominal'), 1),
 101                  14 => new question_possible_response(
 102                          $this->get_possible_response('{a} - {b}', 0.001, 'nominal'), 0),
 103                  0  => new question_possible_response(
 104                          get_string('didnotmatchanyanswer', 'question'), 0),
 105                  null => question_possible_response::no_response()
 106              ),
 107          ), $this->qtype->get_possible_responses($q));
 108      }
 109  }