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/**
19 * Unit tests for the simple calculated question definition class.
20 *
21 * @package    qtype
22 * @subpackage calculatedsimple
23 * @copyright  2011 The Open University
24 * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
25 */
26
27
28defined('MOODLE_INTERNAL') || die();
29
30global $CFG;
31require_once($CFG->dirroot . '/question/engine/tests/helpers.php');
32
33
34/**
35 * Unit tests for qtype_calculatedsimple_definition.
36 *
37 * @copyright  2011 The Open University
38 * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
39 */
40class qtype_calculatedsimple_question_test extends advanced_testcase {
41    public function test_is_complete_response() {
42        $question = test_question_maker::make_question('calculatedsimple');
43
44        $this->assertFalse($question->is_complete_response(array()));
45        $this->assertTrue($question->is_complete_response(array('answer' => '0')));
46        $this->assertTrue($question->is_complete_response(array('answer' => 0)));
47        $this->assertFalse($question->is_complete_response(array('answer' => 'test')));
48    }
49
50    public function test_is_gradable_response() {
51        $question = test_question_maker::make_question('calculatedsimple');
52
53        $this->assertFalse($question->is_gradable_response(array()));
54        $this->assertTrue($question->is_gradable_response(array('answer' => '0')));
55        $this->assertTrue($question->is_gradable_response(array('answer' => 0)));
56        $this->assertTrue($question->is_gradable_response(array('answer' => 'test')));
57    }
58
59    public function test_grading() {
60        $question = test_question_maker::make_question('calculatedsimple');
61        $question->start_attempt(new question_attempt_step(), 1);
62        $values = $question->vs->get_values();
63
64        $this->assertEquals(array(0, question_state::$gradedwrong),
65                $question->grade_response(array('answer' => $values['a'] - $values['b'])));
66        $this->assertEquals(array(1, question_state::$gradedright),
67                $question->grade_response(array('answer' => $values['a'] + $values['b'])));
68    }
69
70    public function test_get_correct_response() {
71        $question = test_question_maker::make_question('calculatedsimple');
72        $question->start_attempt(new question_attempt_step(), 1);
73        $values = $question->vs->get_values();
74
75        $this->assertEquals(array('answer' => $values['a'] + $values['b']),
76                $question->get_correct_response());
77    }
78
79    public function test_get_question_summary() {
80        $question = test_question_maker::make_question('calculatedsimple');
81        $question->start_attempt(new question_attempt_step(), 1);
82        $values = $question->vs->get_values();
83
84        $qsummary = $question->get_question_summary();
85        $this->assertEquals('What is ' . $values['a'] . ' + ' . $values['b'] . '?', $qsummary);
86    }
87
88    public function test_summarise_response() {
89        $question = test_question_maker::make_question('calculatedsimple');
90        $question->start_attempt(new question_attempt_step(), 1);
91        $values = $question->vs->get_values();
92
93        $this->assertEquals('3.1', $question->summarise_response(array('answer' => '3.1')));
94    }
95
96    public function test_classify_response() {
97        $question = test_question_maker::make_question('calculatedsimple');
98        $question->start_attempt(new question_attempt_step(), 1);
99        $values = $question->vs->get_values();
100
101        $this->assertEquals(array(
102                new question_classified_response(13, $values['a'] + $values['b'], 1.0)),
103                $question->classify_response(array('answer' => $values['a'] + $values['b'])));
104        $this->assertEquals(array(
105                new question_classified_response(14, $values['a'] - $values['b'], 0.0)),
106                $question->classify_response(array('answer' => $values['a'] - $values['b'])));
107        $this->assertEquals(array(
108                new question_classified_response(17, 7 * $values['a'], 0.0)),
109                $question->classify_response(array('answer' => 7 * $values['a'])));
110        $this->assertEquals(array(
111                question_classified_response::no_response()),
112                $question->classify_response(array('answer' => '')));
113    }
114}