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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 algebra question type class.
*
* @package qtype_algebra
* @copyright 2017 Jean-Michel Vedrine
* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
*/
defined('MOODLE_INTERNAL') || die();
global $CFG;
require_once($CFG->dirroot . '/question/type/algebra/questiontype.php');
require_once($CFG->dirroot . '/question/engine/tests/helpers.php');
require_once($CFG->dirroot . '/question/type/edit_question_form.php');
require_once($CFG->dirroot . '/question/type/algebra/parser.php');
require_once($CFG->dirroot . '/question/type/algebra/edit_algebra_form.php');
/**
* Unit tests for the algebra question type class.
*
* @copyright 2007 The Open University
* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
*/
class qtype_algebra_test extends advanced_testcase {
public static $includecoverage = array(
'question/type/questiontypebase.php',
'question/type/algebra/questiontype.php',
);
protected $qtype;
protected function setUp() {
$this->qtype = new qtype_algebra();
}
protected function tearDown() {
$this->qtype = null;
}
protected function get_test_question_data() {
return test_question_maker::get_question_data('algebra', 'simplemath');
}
public function test_name() {
$this->assertEquals($this->qtype->name(), 'algebra');
}
public function test_can_analyse_responses() {
$this->assertTrue($this->qtype->can_analyse_responses());
}
public function test_get_random_guess_score() {
$q = test_question_maker::get_question_data('algebra');
$this->assertEquals(0, $this->qtype->get_random_guess_score($q));
}
public function test_get_possible_responses() {
$q = test_question_maker::get_question_data('algebra', 'derive');
$this->assertEquals(array(
$q->id => array(
13 => new question_possible_response('2*x', 1),
14 => new question_possible_response('x', 0.2),
null => question_possible_response::no_response(),
0 => new question_possible_response(get_string('didnotmatchanyanswer', 'question'), 0),
),
), $this->qtype->get_possible_responses($q));
}
public function test_question_saving_simplemath() {
$this->resetAfterTest(true);
$this->setAdminUser();
$questiondata = test_question_maker::get_question_data('algebra', 'simplemath');
$formdata = test_question_maker::get_question_form_data('algebra', 'simplemath');
$generator = $this->getDataGenerator()->get_plugin_generator('core_question');
$cat = $generator->create_question_category(array());
$formdata->category = "{$cat->id},{$cat->contextid}";
qtype_algebra_edit_form::mock_submit((array)$formdata);
$form = qtype_algebra_test_helper::get_question_editing_form($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'))) {
$this->assertAttributeEquals($value, $property, $actualquestiondata);
}
}
foreach ($questiondata->options as $optionname => $value) {
if ($optionname != 'answers') {
$this->assertAttributeEquals($value, $optionname, $actualquestiondata->options);
}
}
foreach ($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'))) {
$this->assertAttributeEquals($ansvalue, $ansproperty, $actualanswer);
}
}
}
}
public function test_question_saving_trims_answers() {
$this->resetAfterTest(true);
$this->setAdminUser();
$questiondata = test_question_maker::get_question_data('algebra', 'simplemath');
$formdata = test_question_maker::get_question_form_data('algebra', 'simplemath');
$generator = $this->getDataGenerator()->get_plugin_generator('core_question');
$cat = $generator->create_question_category(array());
$formdata->category = "{$cat->id},{$cat->contextid}";
$formdata->answer[0] = ' 7*x ';
qtype_algebra_edit_form::mock_submit((array)$formdata);
$form = qtype_algebra_test_helper::get_question_editing_form($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);
$firstsavedanswer = reset($questiondata->options->answers);
$this->assertEquals('7*x', $firstsavedanswer->answer);
}
public function test_extra_question_fields() {
$extraquestionfields = array('qtype_algebra_options', 'compareby', 'nchecks',
'tolerance', 'allowedfuncs', 'disallow', 'answerprefix');
$this->assertEquals($this->qtype->extra_question_fields(), $extraquestionfields);
}
}
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