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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  /**
  18   * This file contains tests for the question_attempt class.
  19   *
  20   * Action methods like start, process_action and finish are assumed to be
  21   * tested by walkthrough tests in the various behaviours.
  22   *
  23   * @package    moodlecore
  24   * @subpackage questionengine
  25   * @copyright  2009 The Open University
  26   * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
  27   */
  28  
  29  
  30  defined('MOODLE_INTERNAL') || die();
  31  
  32  global $CFG;
  33  require_once(dirname(__FILE__) . '/../lib.php');
  34  require_once(dirname(__FILE__) . '/helpers.php');
  35  
  36  
  37  /**
  38   * These tests use a standard fixture of a {@link question_attempt} with three steps.
  39   *
  40   * @copyright  2009 The Open University
  41   * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
  42   */
  43  class question_attempt_with_steps_test extends advanced_testcase {
  44      private $question;
  45      private $qa;
  46  
  47      protected function setUp() {
  48          $this->question = test_question_maker::make_question('description');
  49          $this->qa = new testable_question_attempt($this->question, 0, null, 2);
  50          for ($i = 0; $i < 3; $i++) {
  51              $step = new question_attempt_step(array('i' => $i));
  52              $this->qa->add_step($step);
  53          }
  54      }
  55  
  56      protected function tearDown() {
  57          $this->qa = null;
  58      }
  59  
  60      public function test_get_step_before_start() {
  61          $this->setExpectedException('moodle_exception');
  62          $step = $this->qa->get_step(-1);
  63      }
  64  
  65      public function test_get_step_at_start() {
  66          $step = $this->qa->get_step(0);
  67          $this->assertEquals(0, $step->get_qt_var('i'));
  68      }
  69  
  70      public function test_get_step_at_end() {
  71          $step = $this->qa->get_step(2);
  72          $this->assertEquals(2, $step->get_qt_var('i'));
  73      }
  74  
  75      public function test_get_step_past_end() {
  76          $this->setExpectedException('moodle_exception');
  77          $step = $this->qa->get_step(3);
  78      }
  79  
  80      public function test_get_num_steps() {
  81          $this->assertEquals(3, $this->qa->get_num_steps());
  82      }
  83  
  84      public function test_get_last_step() {
  85          $step = $this->qa->get_last_step();
  86          $this->assertEquals(2, $step->get_qt_var('i'));
  87      }
  88  
  89      public function test_get_last_qt_var_there1() {
  90          $this->assertEquals(2, $this->qa->get_last_qt_var('i'));
  91      }
  92  
  93      public function test_get_last_qt_var_there2() {
  94          $this->qa->get_step(0)->set_qt_var('_x', 'a value');
  95          $this->assertEquals('a value', $this->qa->get_last_qt_var('_x'));
  96      }
  97  
  98      public function test_get_last_qt_var_missing() {
  99          $this->assertNull($this->qa->get_last_qt_var('notthere'));
 100      }
 101  
 102      public function test_get_last_qt_var_missing_default() {
 103          $this->assertEquals('default', $this->qa->get_last_qt_var('notthere', 'default'));
 104      }
 105  
 106      public function test_get_last_behaviour_var_missing() {
 107          $this->assertNull($this->qa->get_last_qt_var('notthere'));
 108      }
 109  
 110      public function test_get_last_behaviour_var_there() {
 111          $this->qa->get_step(1)->set_behaviour_var('_x', 'a value');
 112          $this->assertEquals('a value', '' . $this->qa->get_last_behaviour_var('_x'));
 113      }
 114  
 115      public function test_get_state_gets_state_of_last() {
 116          $this->qa->get_step(2)->set_state(question_state::$gradedright);
 117          $this->qa->get_step(1)->set_state(question_state::$gradedwrong);
 118          $this->assertEquals(question_state::$gradedright, $this->qa->get_state());
 119      }
 120  
 121      public function test_get_mark_gets_mark_of_last() {
 122          $this->assertEquals(2, $this->qa->get_max_mark());
 123          $this->qa->get_step(2)->set_fraction(0.5);
 124          $this->qa->get_step(1)->set_fraction(0.1);
 125          $this->assertEquals(1, $this->qa->get_mark());
 126      }
 127  
 128      public function test_get_fraction_gets_fraction_of_last() {
 129          $this->qa->get_step(2)->set_fraction(0.5);
 130          $this->qa->get_step(1)->set_fraction(0.1);
 131          $this->assertEquals(0.5, $this->qa->get_fraction());
 132      }
 133  
 134      public function test_get_fraction_returns_null_if_none() {
 135          $this->assertNull($this->qa->get_fraction());
 136      }
 137  
 138      public function test_format_mark() {
 139          $this->qa->get_step(2)->set_fraction(0.5);
 140          $this->assertEquals('1.00', $this->qa->format_mark(2));
 141      }
 142  
 143      public function test_format_max_mark() {
 144          $this->assertEquals('2.0000000', $this->qa->format_max_mark(7));
 145      }
 146  
 147      public function test_get_min_fraction() {
 148          $this->qa->set_min_fraction(-1);
 149          $this->assertEquals(-1, $this->qa->get_min_fraction());
 150      }
 151  
 152      public function test_cannot_get_min_fraction_before_start() {
 153          $qa = new question_attempt($this->question, 0);
 154          $this->setExpectedException('moodle_exception');
 155          $qa->get_min_fraction();
 156      }
 157  
 158      public function test_get_max_fraction() {
 159          $this->qa->set_max_fraction(2);
 160          $this->assertEquals(2, $this->qa->get_max_fraction());
 161      }
 162  
 163      public function test_cannot_get_max_fraction_before_start() {
 164          $qa = new question_attempt($this->question, 0);
 165          $this->setExpectedException('moodle_exception');
 166          $qa->get_max_fraction();
 167      }
 168  }