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Differences Between: [Versions 310 and 402] [Versions 311 and 402] [Versions 39 and 402]

   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  namespace qtype_multichoice;
  18  
  19  use qtype_multichoice_multi_question;
  20  use question_answer;
  21  use question_attempt_step;
  22  use question_bank;
  23  use question_classified_response;
  24  use question_state;
  25  
  26  defined('MOODLE_INTERNAL') || die();
  27  
  28  global $CFG;
  29  require_once($CFG->dirroot . '/question/engine/tests/helpers.php');
  30  
  31  /**
  32   * Unit tests for the multiple choice, single response question definition class.
  33   *
  34   * @package   qtype_multichoice
  35   * @copyright 2009 The Open University
  36   * @license   http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
  37   * @covers \qtype_multichoice_single_question
  38   */
  39  class question_single_test extends \advanced_testcase {
  40  
  41      public function test_get_expected_data() {
  42          $question = \test_question_maker::make_a_multichoice_single_question();
  43          $this->assertEquals(array('answer' => PARAM_INT), $question->get_expected_data());
  44      }
  45  
  46      public function test_is_complete_response() {
  47          $question = \test_question_maker::make_a_multichoice_single_question();
  48  
  49          $this->assertFalse($question->is_complete_response(array()));
  50          $this->assertTrue($question->is_complete_response(array('answer' => '0')));
  51          $this->assertTrue($question->is_complete_response(array('answer' => '2')));
  52          $this->assertFalse($question->is_complete_response(array('answer' => '-1')));
  53          $this->assertFalse($question->is_complete_response(array('answer' => -1)));
  54      }
  55  
  56      public function test_is_gradable_response() {
  57          $question = \test_question_maker::make_a_multichoice_single_question();
  58  
  59          $this->assertFalse($question->is_gradable_response(array()));
  60          $this->assertTrue($question->is_gradable_response(array('answer' => '0')));
  61          $this->assertTrue($question->is_gradable_response(array('answer' => '2')));
  62          $this->assertFalse($question->is_gradable_response(array('answer' => '-1')));
  63      }
  64  
  65      public function test_is_same_response() {
  66          $question = \test_question_maker::make_a_multichoice_single_question();
  67          $question->start_attempt(new question_attempt_step(), 1);
  68  
  69          $this->assertTrue($question->is_same_response(
  70                  array(),
  71                  array()));
  72  
  73          $this->assertFalse($question->is_same_response(
  74                  array(),
  75                  array('answer' => '0')));
  76  
  77          $this->assertTrue($question->is_same_response(
  78                  array('answer' => '0'),
  79                  array('answer' => '0')));
  80  
  81          $this->assertFalse($question->is_same_response(
  82                  array('answer' => '0'),
  83                  array('answer' => '1')));
  84  
  85          $this->assertTrue($question->is_same_response(
  86                  array('answer' => '2'),
  87                  array('answer' => '2')));
  88  
  89          $this->assertFalse($question->is_same_response(
  90                  array('answer' => '0'),
  91                  array('answer' => '-1')));
  92  
  93          $this->assertFalse($question->is_same_response(
  94                  array('answer' => '-1'),
  95                  array('answer' => '0')));
  96  
  97          $this->assertTrue($question->is_same_response(
  98                  array('answer' => '-1'),
  99                  array('answer' => '-1')));
 100  
 101          $this->assertTrue($question->is_same_response(
 102                  array(),
 103                  array('answer' => '-1')));
 104      }
 105  
 106      public function test_grading() {
 107          $question = \test_question_maker::make_a_multichoice_single_question();
 108          $question->start_attempt(new question_attempt_step(), 1);
 109  
 110          $this->assertEquals(array(1, question_state::$gradedright),
 111                  $question->grade_response($question->prepare_simulated_post_data(array('answer' => 'A'))));
 112          $this->assertEquals(array(-0.3333333, question_state::$gradedwrong),
 113                  $question->grade_response($question->prepare_simulated_post_data(array('answer' => 'B'))));
 114          $this->assertEquals(array(-0.3333333, question_state::$gradedwrong),
 115                  $question->grade_response($question->prepare_simulated_post_data(array('answer' => 'C'))));
 116      }
 117  
 118      public function test_grading_rounding_three_right() {
 119          question_bank::load_question_definition_classes('multichoice');
 120          $mc = new qtype_multichoice_multi_question();
 121          \test_question_maker::initialise_a_question($mc);
 122          $mc->name = 'Odd numbers';
 123          $mc->questiontext = 'Which are the odd numbers?';
 124          $mc->generalfeedback = '1, 3 and 5 are the odd numbers.';
 125          $mc->qtype = question_bank::get_qtype('multichoice');
 126  
 127          $mc->answernumbering = 'abc';
 128          $mc->showstandardinstruction = 0;
 129  
 130          \test_question_maker::set_standard_combined_feedback_fields($mc);
 131  
 132          $mc->answers = array(
 133              11 => new question_answer(11, '1', 0.3333333, '', FORMAT_HTML),
 134              12 => new question_answer(12, '2', -1, '', FORMAT_HTML),
 135              13 => new question_answer(13, '3', 0.3333333, '', FORMAT_HTML),
 136              14 => new question_answer(14, '4', -1, '', FORMAT_HTML),
 137              15 => new question_answer(15, '5', 0.3333333, '', FORMAT_HTML),
 138              16 => new question_answer(16, '6', -1, '', FORMAT_HTML),
 139          );
 140  
 141          $mc->start_attempt(new question_attempt_step(), 1);
 142  
 143          list($grade, $state) = $mc->grade_response($mc->prepare_simulated_post_data(array('1' => '1', '3' => '1', '5' => '1')));
 144          $this->assertEqualsWithDelta(1, $grade, 0.000001);
 145          $this->assertEquals(question_state::$gradedright, $state);
 146      }
 147  
 148      public function test_get_correct_response() {
 149          $question = \test_question_maker::make_a_multichoice_single_question();
 150          $question->start_attempt(new question_attempt_step(), 1);
 151  
 152          $this->assertEquals($question->prepare_simulated_post_data(array('answer' => 'A')), $question->get_correct_response());
 153      }
 154  
 155      public function test_summarise_response() {
 156          $mc = \test_question_maker::make_a_multichoice_single_question();
 157          $mc->start_attempt(new question_attempt_step(), 1);
 158  
 159          $summary = $mc->summarise_response($mc->prepare_simulated_post_data(array('answer' => 'A')),
 160                                              \test_question_maker::get_a_qa($mc));
 161  
 162          $this->assertEquals('A', $summary);
 163  
 164          $this->assertNull($mc->summarise_response([]));
 165          $this->assertNull($mc->summarise_response(['answer' => '-1']));
 166      }
 167  
 168      public function test_un_summarise_response() {
 169          $mc = \test_question_maker::make_a_multichoice_single_question();
 170          $mc->shuffleanswers = false;
 171          $mc->start_attempt(new question_attempt_step(), 1);
 172  
 173          $this->assertEquals(['answer' => '1'], $mc->un_summarise_response('B'));
 174  
 175          $this->assertEquals([], $mc->un_summarise_response(''));
 176      }
 177  
 178      public function test_classify_response() {
 179          $mc = \test_question_maker::make_a_multichoice_single_question();
 180          $mc->start_attempt(new question_attempt_step(), 1);
 181  
 182          $this->assertEquals(array($mc->id => new question_classified_response(14, 'B', -0.3333333)),
 183                              $mc->classify_response($mc->prepare_simulated_post_data(array('answer' => 'B'))));
 184  
 185          $this->assertEquals(array(
 186                  $mc->id => question_classified_response::no_response(),
 187          ), $mc->classify_response(array()));
 188  
 189          $this->assertEquals(array(
 190                  $mc->id => question_classified_response::no_response(),
 191          ), $mc->classify_response(array('answer' => '-1')));
 192      }
 193  
 194      public function test_make_html_inline() {
 195          $mc = \test_question_maker::make_a_multichoice_single_question();
 196          $this->assertEquals('Frog', $mc->make_html_inline('<p>Frog</p>'));
 197          $this->assertEquals('Frog<br />Toad', $mc->make_html_inline("<p>Frog</p>\n<p>Toad</p>"));
 198          $this->assertEquals('<img src="http://example.com/pic.png" alt="Graph" />',
 199                  $mc->make_html_inline(
 200                      '<p><img src="http://example.com/pic.png" alt="Graph" /></p>'));
 201          $this->assertEquals("Frog<br />XXX <img src='http://example.com/pic.png' alt='Graph' />",
 202                  $mc->make_html_inline(" <p> Frog </p> \n\r
 203                      <p> XXX <img src='http://example.com/pic.png' alt='Graph' /> </p> "));
 204          $this->assertEquals('Frog', $mc->make_html_inline('<p>Frog</p><p></p>'));
 205          $this->assertEquals('Frog<br />†', $mc->make_html_inline('<p>Frog</p><p>†</p>'));
 206      }
 207  
 208      public function test_simulated_post_data() {
 209          $mc = \test_question_maker::make_a_multichoice_single_question();
 210          $mc->shuffleanswers = false;
 211          $mc->answers[13]->answer = '<p>A</p>';
 212          $mc->answers[14]->answer = '<p>B</p>';
 213          $mc->answers[15]->answer = '<p>C</p>';
 214          $mc->start_attempt(new question_attempt_step(), 1);
 215  
 216          $originalresponse = array('answer' => 1);
 217  
 218          $simulated = $mc->get_student_response_values_for_simulation($originalresponse);
 219          $this->assertEquals(array('answer' => 'B'), $simulated);
 220  
 221          $reconstucted = $mc->prepare_simulated_post_data($simulated);
 222          $this->assertEquals($originalresponse, $reconstucted);
 223      }
 224  
 225      public function test_validate_can_regrade_with_other_version_bad() {
 226          $mc = \test_question_maker::make_a_multichoice_single_question();
 227  
 228          $newmc = clone($mc);
 229          $newmc->answers = array(
 230              23 => new question_answer(13, 'A', 1, 'A is right', FORMAT_HTML),
 231              24 => new question_answer(14, 'B', -0.3333333, 'B is wrong', FORMAT_HTML),
 232          );
 233  
 234          $this->assertEquals(get_string('regradeissuenumchoiceschanged', 'qtype_multichoice'),
 235                  $newmc->validate_can_regrade_with_other_version($mc));
 236      }
 237  
 238      public function test_validate_can_regrade_with_other_version_ok() {
 239          $mc = \test_question_maker::make_a_multichoice_single_question();
 240  
 241          $newmc = clone($mc);
 242          $newmc->answers = array(
 243              23 => new question_answer(13, 'A', 1, 'A is right', FORMAT_HTML),
 244              24 => new question_answer(14, 'B', -0.3333333, 'B is wrong', FORMAT_HTML),
 245              25 => new question_answer(15, 'C', -0.3333333, 'C is wrong', FORMAT_HTML),
 246          );
 247  
 248          $this->assertNull($newmc->validate_can_regrade_with_other_version($mc));
 249      }
 250  
 251      public function test_update_attempt_state_date_from_old_version_bad() {
 252          $mc = \test_question_maker::make_a_multichoice_single_question();
 253  
 254          $newmc = clone($mc);
 255          $newmc->answers = array(
 256              23 => new question_answer(13, 'A', 1, 'A is right', FORMAT_HTML),
 257              24 => new question_answer(14, 'B', -0.3333333, 'B is wrong', FORMAT_HTML),
 258          );
 259  
 260          $oldstep = new question_attempt_step();
 261          $oldstep->set_qt_var('_order', '14,13,15');
 262          $this->expectExceptionMessage(get_string('regradeissuenumchoiceschanged', 'qtype_multichoice'));
 263          $newmc->update_attempt_state_data_for_new_version($oldstep, $mc);
 264      }
 265  
 266      public function test_update_attempt_state_date_from_old_version_ok() {
 267          $mc = \test_question_maker::make_a_multichoice_single_question();
 268  
 269          $newmc = clone($mc);
 270          $newmc->answers = array(
 271              23 => new question_answer(13, 'A', 1, 'A is right', FORMAT_HTML),
 272              24 => new question_answer(14, 'B', -0.3333333, 'B is wrong', FORMAT_HTML),
 273              25 => new question_answer(15, 'C', -0.3333333, 'C is wrong', FORMAT_HTML),
 274          );
 275  
 276          $oldstep = new question_attempt_step();
 277          $oldstep->set_qt_var('_order', '14,13,15');
 278          $this->assertEquals(['_order' => '24,23,25'],
 279                  $newmc->update_attempt_state_data_for_new_version($oldstep, $mc));
 280      }
 281  }