forked from moodle/moodle
/
questiontype_test.php
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/
questiontype_test.php
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<?php
// This file is part of Moodle - http://moodle.org/
//
// Moodle is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// Moodle is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with Moodle. If not, see <http://www.gnu.org/licenses/>.
/**
* Unit tests for the mulitple choice question definition class.
*
* @package qtype_multichoice
* @copyright 2013 The Open University
* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
*/
defined('MOODLE_INTERNAL') || die();
global $CFG;
require_once($CFG->dirroot . '/question/engine/tests/helpers.php');
require_once($CFG->dirroot . '/question/type/multichoice/questiontype.php');
require_once($CFG->dirroot . '/question/type/edit_question_form.php');
require_once($CFG->dirroot . '/question/type/multichoice/edit_multichoice_form.php');
/**
* Unit tests for the multiple choice question definition class.
*
* @copyright 2009 The Open University
* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
*/
class qtype_multichoice_test extends advanced_testcase {
protected $qtype;
protected function setUp(): void {
$this->qtype = new qtype_multichoice();
}
protected function tearDown(): void {
$this->qtype = null;
}
public function test_name() {
$this->assertEquals($this->qtype->name(), 'multichoice');
}
protected function get_test_question_data() {
$q = new stdClass();
$q->id = 1;
$q->options = new stdClass();
$q->options->single = true;
$q->options->answers[1] = (object) array('answer' => 'frog',
'answerformat' => FORMAT_HTML, 'fraction' => 1);
$q->options->answers[2] = (object) array('answer' => 'toad',
'answerformat' => FORMAT_HTML, 'fraction' => 0);
return $q;
}
public function test_can_analyse_responses() {
$this->assertTrue($this->qtype->can_analyse_responses());
}
public function test_get_random_guess_score() {
$q = $this->get_test_question_data();
$this->assertEquals(0.5, $this->qtype->get_random_guess_score($q));
}
public function test_get_random_guess_score_multi() {
$q = $this->get_test_question_data();
$q->options->single = false;
$this->assertNull($this->qtype->get_random_guess_score($q));
}
public function test_get_possible_responses_single() {
$q = $this->get_test_question_data();
$responses = $this->qtype->get_possible_responses($q);
$this->assertEquals(array(
$q->id => array(
1 => new question_possible_response('frog', 1),
2 => new question_possible_response('toad', 0),
null => question_possible_response::no_response(),
)), $this->qtype->get_possible_responses($q));
}
public function test_get_possible_responses_multi() {
$q = $this->get_test_question_data();
$q->options->single = false;
$this->assertEquals(array(
1 => array(1 => new question_possible_response('frog', 1)),
2 => array(2 => new question_possible_response('toad', 0)),
), $this->qtype->get_possible_responses($q));
}
public function get_question_saving_which() {
return array(array('two_of_four'), array('one_of_four'));
}
/**
* @dataProvider get_question_saving_which
*/
public function test_question_saving_two_of_four($which) {
$this->resetAfterTest(true);
$this->setAdminUser();
$questiondata = test_question_maker::get_question_data('multichoice', $which);
$formdata = test_question_maker::get_question_form_data('multichoice', $which);
$generator = $this->getDataGenerator()->get_plugin_generator('core_question');
$cat = $generator->create_question_category(array());
$formdata->category = "{$cat->id},{$cat->contextid}";
qtype_multichoice_edit_form::mock_submit((array)$formdata);
$form = qtype_multichoice_test_helper::get_question_editing_form($cat, $questiondata);
$this->assertTrue($form->is_validated());
$fromform = $form->get_data();
$returnedfromsave = $this->qtype->save_question($questiondata, $fromform);
$actualquestionsdata = question_load_questions(array($returnedfromsave->id));
$actualquestiondata = end($actualquestionsdata);
foreach ($questiondata as $property => $value) {
if (!in_array($property, array('id', 'version', 'timemodified', 'timecreated', 'options', 'hints', 'stamp'))) {
$this->assertEquals($value, $actualquestiondata->$property);
}
}
foreach ($questiondata->options as $optionname => $value) {
if ($optionname != 'answers') {
$this->assertEquals($value, $actualquestiondata->options->$optionname);
}
}
foreach ($questiondata->hints as $hint) {
$actualhint = array_shift($actualquestiondata->hints);
foreach ($hint as $property => $value) {
if (!in_array($property, array('id', 'questionid', 'options'))) {
$this->assertEquals($value, $actualhint->$property);
}
}
}
foreach ($questiondata->options->answers as $answer) {
$actualanswer = array_shift($actualquestiondata->options->answers);
foreach ($answer as $ansproperty => $ansvalue) {
// This question does not use 'answerformat', will ignore it.
if (!in_array($ansproperty, array('id', 'question', 'answerformat'))) {
$this->assertEquals($ansvalue, $actualanswer->$ansproperty);
}
}
}
}
/**
* Test to make sure that loading of question options works, including in an error case.
*/
public function test_get_question_options() {
global $DB;
$this->resetAfterTest(true);
$this->setAdminUser();
// Create a complete, in DB question to use.
$questiondata = test_question_maker::get_question_data('multichoice', 'two_of_four');
$formdata = test_question_maker::get_question_form_data('multichoice', 'two_of_four');
$generator = $this->getDataGenerator()->get_plugin_generator('core_question');
$cat = $generator->create_question_category(array());
$formdata->category = "{$cat->id},{$cat->contextid}";
qtype_multichoice_edit_form::mock_submit((array)$formdata);
$form = qtype_multichoice_test_helper::get_question_editing_form($cat, $questiondata);
$this->assertTrue($form->is_validated());
$fromform = $form->get_data();
$returnedfromsave = $this->qtype->save_question($questiondata, $fromform);
// Now get just the raw DB record.
$question = $DB->get_record('question', ['id' => $returnedfromsave->id], '*', MUST_EXIST);
// Load it.
$this->qtype->get_question_options($question);
$this->assertDebuggingNotCalled();
$this->assertInstanceOf(stdClass::class, $question->options);
$options = $question->options;
$this->assertEquals($question->id, $options->questionid);
$this->assertEquals(0, $options->single);
$this->assertCount(4, $options->answers);
// Now we are going to delete the options record.
$DB->delete_records('qtype_multichoice_options', ['questionid' => $question->id]);
// Now see what happens.
$question = $DB->get_record('question', ['id' => $returnedfromsave->id], '*', MUST_EXIST);
$this->qtype->get_question_options($question);
$this->assertDebuggingCalled('Question ID '.$question->id.' was missing an options record. Using default.');
$this->assertInstanceOf(stdClass::class, $question->options);
$options = $question->options;
$this->assertEquals($question->id, $options->questionid);
$this->assertCount(4, $options->answers);
$this->assertEquals(get_string('correctfeedbackdefault', 'question'), $options->correctfeedback);
$this->assertEquals(FORMAT_HTML, $options->correctfeedbackformat);
// We no longer know how many answers, so it just has to guess with the default value.
$this->assertEquals(get_config('qtype_multichoice', 'answerhowmany'), $options->single);
// And finally we try again with no answer either.
$DB->delete_records('question_answers', ['question' => $question->id]);
$question = $DB->get_record('question', ['id' => $returnedfromsave->id], '*', MUST_EXIST);
$this->qtype->get_question_options($question);
$this->assertDebuggingCalled('Question ID '.$question->id.' was missing an options record. Using default.');
$this->assertInstanceOf(stdClass::class, $question->options);
$options = $question->options;
$this->assertEquals($question->id, $options->questionid);
$this->assertCount(0, $options->answers);
}
}