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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 short answer question definition 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/engine/tests/helpers.php');
require_once($CFG->dirroot . '/question/type/algebra/tests/helper.php');
/**
* Unit tests for the algebra question definition class.
*
* @copyright 2017 Jean-Michel Vedrine
* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
*/
class qtype_algebra_question_test extends advanced_testcase {
/**
* @return qtype_formulas_question the requested question object.
*/
protected function get_test_algebra_question($which = null) {
return test_question_maker::make_question('algebra', $which);
}
public function test_is_gradable_response() {
$question = $this->get_test_algebra_question('simplemath');
$this->assertFalse($question->is_gradable_response(array()));
$this->assertFalse($question->is_gradable_response(array('answer' => '')));
$this->assertTrue($question->is_gradable_response(array('answer' => '0')));
$this->assertTrue($question->is_gradable_response(array('answer' => '0.0')));
$this->assertTrue($question->is_gradable_response(array('answer' => 'x')));
}
public function test_grading_test0() {
$question = $this->get_test_algebra_question('simplemath');
$this->assertEquals(array(0, question_state::$gradedwrong),
$question->grade_response(array('answer' => 'x')));
$this->assertEquals(array(0, question_state::$gradedwrong),
$question->grade_response(array('answer' => '0')));
$this->assertEquals(array(0, question_state::$gradedwrong),
$question->grade_response(array('answer' => '5*x')));
$this->assertEquals(array(1, question_state::$gradedright),
$question->grade_response(array('answer' => '7*x')));
}
public function test_grading_test1() {
$question = $this->get_test_algebra_question('derive');
$this->assertEquals(array(0.2, question_state::$gradedpartial),
$question->grade_response(array('answer' => 'x')));
$this->assertEquals(array(0, question_state::$gradedwrong),
$question->grade_response(array('answer' => '0')));
$this->assertEquals(array(1, question_state::$gradedright),
$question->grade_response(array('answer' => '2*x')));
$this->assertEquals(array(1, question_state::$gradedright),
$question->grade_response(array('answer' => 'x+x')));
}
public function test_get_correct_response() {
$question = $this->get_test_algebra_question('simplemath');
$this->assertEquals(array('answer' => '7*x'),
$question->get_correct_response());
}
public function test_get_question_summary() {
$question = $this->get_test_algebra_question('derive');
$qsummary = $question->get_question_summary();
$this->assertEquals('What is the derivative of the function \(f(x) = x^2\) ?', $qsummary);
}
public function test_summarise_response() {
$question = $this->get_test_algebra_question('derive');
$summary = $question->summarise_response(array('answer' => '2*x'));
$this->assertEquals('2*x', $summary);
}
public function test_classify_response() {
$question = $this->get_test_algebra_question('derive');
$question->start_attempt(new question_attempt_step(), 1);
$this->assertEquals(array(
new question_classified_response(13, '2*x', 1.0)),
$question->classify_response(array('answer' => '2*x')));
$this->assertEquals(array(
new question_classified_response(0, '5*x', 0)),
$question->classify_response(array('answer' => '5*x')));
$this->assertEquals(array(
question_classified_response::no_response()),
$question->classify_response(array('answer' => '')));
}
}
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