File: /home/mbp/domains/mbp.ac.th/public_html/biology/lib/tests/questionlib_test.php
<?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 (some of) ../questionlib.php.
*
* @package core_question
* @category phpunit
* @copyright 2006 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->libdir . '/questionlib.php');
require_once($CFG->dirroot . '/mod/quiz/locallib.php');
// Get the necessary files to perform backup and restore.
require_once($CFG->dirroot . '/backup/util/includes/backup_includes.php');
require_once($CFG->dirroot . '/backup/util/includes/restore_includes.php');
/**
* Unit tests for (some of) ../questionlib.php.
*
* @copyright 2006 The Open University
* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
*/
class core_questionlib_testcase extends advanced_testcase {
/**
* Test set up.
*
* This is executed before running any test in this file.
*/
public function setUp() {
$this->resetAfterTest();
}
/**
* Return true and false to test functions with feedback on and off.
*
* @return array Test data
*/
public function provider_feedback() {
return array(
'Feedback test' => array(true),
'No feedback test' => array(false)
);
}
/**
* Setup a course, a quiz, a question category and a question for testing.
*
* @param string $type The type of question category to create.
* @return array The created data objects
*/
public function setup_quiz_and_questions($type = 'module') {
// Create course category.
$category = $this->getDataGenerator()->create_category();
// Create course.
$course = $this->getDataGenerator()->create_course(array('numsections' => 5));
$options = array(
'course' => $course->id,
'duedate' => time(),
);
// Generate an assignment with due date (will generate a course event).
$quiz = $this->getDataGenerator()->create_module('quiz', $options);
$qgen = $this->getDataGenerator()->get_plugin_generator('core_question');
if ('course' == $type) {
$context = context_course::instance($course->id);
} else if ('category' == $type) {
$context = context_coursecat::instance($category->id);
} else {
$context = context_module::instance($quiz->cmid);
}
$qcat = $qgen->create_question_category(array('contextid' => $context->id));
$questions = array(
$qgen->create_question('shortanswer', null, array('category' => $qcat->id)),
$qgen->create_question('shortanswer', null, array('category' => $qcat->id)),
);
quiz_add_quiz_question($questions[0]->id, $quiz);
return array($category, $course, $quiz, $qcat, $questions);
}
public function test_question_reorder_qtypes() {
$this->assertEquals(
array(0 => 't2', 1 => 't1', 2 => 't3'),
question_reorder_qtypes(array('t1' => '', 't2' => '', 't3' => ''), 't1', +1));
$this->assertEquals(
array(0 => 't1', 1 => 't2', 2 => 't3'),
question_reorder_qtypes(array('t1' => '', 't2' => '', 't3' => ''), 't1', -1));
$this->assertEquals(
array(0 => 't2', 1 => 't1', 2 => 't3'),
question_reorder_qtypes(array('t1' => '', 't2' => '', 't3' => ''), 't2', -1));
$this->assertEquals(
array(0 => 't1', 1 => 't2', 2 => 't3'),
question_reorder_qtypes(array('t1' => '', 't2' => '', 't3' => ''), 't3', +1));
$this->assertEquals(
array(0 => 't1', 1 => 't2', 2 => 't3'),
question_reorder_qtypes(array('t1' => '', 't2' => '', 't3' => ''), 'missing', +1));
}
public function test_match_grade_options() {
$gradeoptions = question_bank::fraction_options_full();
$this->assertEquals(0.3333333, match_grade_options($gradeoptions, 0.3333333, 'error'));
$this->assertEquals(0.3333333, match_grade_options($gradeoptions, 0.333333, 'error'));
$this->assertEquals(0.3333333, match_grade_options($gradeoptions, 0.33333, 'error'));
$this->assertFalse(match_grade_options($gradeoptions, 0.3333, 'error'));
$this->assertEquals(0.3333333, match_grade_options($gradeoptions, 0.3333333, 'nearest'));
$this->assertEquals(0.3333333, match_grade_options($gradeoptions, 0.333333, 'nearest'));
$this->assertEquals(0.3333333, match_grade_options($gradeoptions, 0.33333, 'nearest'));
$this->assertEquals(0.3333333, match_grade_options($gradeoptions, 0.33, 'nearest'));
$this->assertEquals(-0.1428571, match_grade_options($gradeoptions, -0.15, 'nearest'));
}
/**
* This function tests that the functions responsible for moving questions to
* different contexts also updates the tag instances associated with the questions.
*/
public function test_altering_tag_instance_context() {
global $CFG, $DB;
// Set to admin user.
$this->setAdminUser();
// Create two course categories - we are going to delete one of these later and will expect
// all the questions belonging to the course in the deleted category to be moved.
$coursecat1 = $this->getDataGenerator()->create_category();
$coursecat2 = $this->getDataGenerator()->create_category();
// Create a couple of categories and questions.
$context1 = context_coursecat::instance($coursecat1->id);
$context2 = context_coursecat::instance($coursecat2->id);
$questiongenerator = $this->getDataGenerator()->get_plugin_generator('core_question');
$questioncat1 = $questiongenerator->create_question_category(array('contextid' =>
$context1->id));
$questioncat2 = $questiongenerator->create_question_category(array('contextid' =>
$context2->id));
$question1 = $questiongenerator->create_question('shortanswer', null, array('category' => $questioncat1->id));
$question2 = $questiongenerator->create_question('shortanswer', null, array('category' => $questioncat1->id));
$question3 = $questiongenerator->create_question('shortanswer', null, array('category' => $questioncat2->id));
$question4 = $questiongenerator->create_question('shortanswer', null, array('category' => $questioncat2->id));
// Now lets tag these questions.
core_tag_tag::set_item_tags('core_question', 'question', $question1->id, $context1, array('tag 1', 'tag 2'));
core_tag_tag::set_item_tags('core_question', 'question', $question2->id, $context1, array('tag 3', 'tag 4'));
core_tag_tag::set_item_tags('core_question', 'question', $question3->id, $context2, array('tag 5', 'tag 6'));
core_tag_tag::set_item_tags('core_question', 'question', $question4->id, $context2, array('tag 7', 'tag 8'));
// Test moving the questions to another category.
question_move_questions_to_category(array($question1->id, $question2->id), $questioncat2->id);
// Test that all tag_instances belong to one context.
$this->assertEquals(8, $DB->count_records('tag_instance', array('component' => 'core_question',
'contextid' => $questioncat2->contextid)));
// Test moving them back.
question_move_questions_to_category(array($question1->id, $question2->id), $questioncat1->id);
// Test that all tag_instances are now reset to how they were initially.
$this->assertEquals(4, $DB->count_records('tag_instance', array('component' => 'core_question',
'contextid' => $questioncat1->contextid)));
$this->assertEquals(4, $DB->count_records('tag_instance', array('component' => 'core_question',
'contextid' => $questioncat2->contextid)));
// Now test moving a whole question category to another context.
question_move_category_to_context($questioncat1->id, $questioncat1->contextid, $questioncat2->contextid);
// Test that all tag_instances belong to one context.
$this->assertEquals(8, $DB->count_records('tag_instance', array('component' => 'core_question',
'contextid' => $questioncat2->contextid)));
// Now test moving them back.
question_move_category_to_context($questioncat1->id, $questioncat2->contextid,
context_coursecat::instance($coursecat1->id)->id);
// Test that all tag_instances are now reset to how they were initially.
$this->assertEquals(4, $DB->count_records('tag_instance', array('component' => 'core_question',
'contextid' => $questioncat1->contextid)));
$this->assertEquals(4, $DB->count_records('tag_instance', array('component' => 'core_question',
'contextid' => $questioncat2->contextid)));
// Now we want to test deleting the course category and moving the questions to another category.
question_delete_course_category($coursecat1, $coursecat2, false);
// Test that all tag_instances belong to one context.
$this->assertEquals(8, $DB->count_records('tag_instance', array('component' => 'core_question',
'contextid' => $questioncat2->contextid)));
// Create a course.
$course = $this->getDataGenerator()->create_course();
// Create some question categories and questions in this course.
$coursecontext = context_course::instance($course->id);
$questioncat = $questiongenerator->create_question_category(array('contextid' =>
$coursecontext->id));
$question1 = $questiongenerator->create_question('shortanswer', null, array('category' => $questioncat->id));
$question2 = $questiongenerator->create_question('shortanswer', null, array('category' => $questioncat->id));
// Add some tags to these questions.
core_tag_tag::set_item_tags('core_question', 'question', $question1->id, $coursecontext, array('tag 1', 'tag 2'));
core_tag_tag::set_item_tags('core_question', 'question', $question2->id, $coursecontext, array('tag 1', 'tag 2'));
// Create a course that we are going to restore the other course to.
$course2 = $this->getDataGenerator()->create_course();
// Create backup file and save it to the backup location.
$bc = new backup_controller(backup::TYPE_1COURSE, $course->id, backup::FORMAT_MOODLE,
backup::INTERACTIVE_NO, backup::MODE_GENERAL, 2);
$bc->execute_plan();
$results = $bc->get_results();
$file = $results['backup_destination'];
$fp = get_file_packer('application/vnd.moodle.backup');
$filepath = $CFG->dataroot . '/temp/backup/test-restore-course';
$file->extract_to_pathname($fp, $filepath);
$bc->destroy();
// Now restore the course.
$rc = new restore_controller('test-restore-course', $course2->id, backup::INTERACTIVE_NO,
backup::MODE_GENERAL, 2, backup::TARGET_NEW_COURSE);
$rc->execute_precheck();
$rc->execute_plan();
// Get the created question category.
$restoredcategory = $DB->get_record('question_categories', array('contextid' => context_course::instance($course2->id)->id),
'*', MUST_EXIST);
// Check that there are two questions in the restored to course's context.
$this->assertEquals(2, $DB->count_records('question', array('category' => $restoredcategory->id)));
$rc->destroy();
}
/**
* This function tests the question_category_delete_safe function.
*/
public function test_question_category_delete_safe() {
global $DB;
$this->resetAfterTest(true);
$this->setAdminUser();
list($category, $course, $quiz, $qcat, $questions) = $this->setup_quiz_and_questions();
question_category_delete_safe($qcat);
// Verify category deleted.
$criteria = array('id' => $qcat->id);
$this->assertEquals(0, $DB->count_records('question_categories', $criteria));
// Verify questions deleted or moved.
$criteria = array('category' => $qcat->id);
$this->assertEquals(0, $DB->count_records('question', $criteria));
// Verify question not deleted.
$criteria = array('id' => $questions[0]->id);
$this->assertEquals(1, $DB->count_records('question', $criteria));
}
/**
* This function tests the question_delete_activity function.
*
* @param bool $feedback Whether to return feedback
* @dataProvider provider_feedback
*/
public function test_question_delete_activity($feedback) {
global $DB;
$this->resetAfterTest(true);
$this->setAdminUser();
list($category, $course, $quiz, $qcat, $questions) = $this->setup_quiz_and_questions();
$cm = get_coursemodule_from_instance('quiz', $quiz->id);
// Test that the feedback works.
if ($feedback) {
$this->expectOutputRegex('|'.get_string('unusedcategorydeleted', 'question').'|');
}
question_delete_activity($cm, $feedback);
// Verify category deleted.
$criteria = array('id' => $qcat->id);
$this->assertEquals(0, $DB->count_records('question_categories', $criteria));
// Verify questions deleted or moved.
$criteria = array('category' => $qcat->id);
$this->assertEquals(0, $DB->count_records('question', $criteria));
}
/**
* This function tests the question_delete_context function.
*/
public function test_question_delete_context() {
global $DB;
$this->resetAfterTest(true);
$this->setAdminUser();
list($category, $course, $quiz, $qcat, $questions) = $this->setup_quiz_and_questions();
// Get the module context id.
$result = question_delete_context($qcat->contextid);
// Verify category deleted.
$criteria = array('id' => $qcat->id);
$this->assertEquals(0, $DB->count_records('question_categories', $criteria));
// Verify questions deleted or moved.
$criteria = array('category' => $qcat->id);
$this->assertEquals(0, $DB->count_records('question', $criteria));
// Test that the feedback works.
$expected[] = array($qcat->name, get_string('unusedcategorydeleted', 'question'));
$this->assertEquals($expected, $result);
}
/**
* This function tests the question_delete_course function.
*
* @param bool $feedback Whether to return feedback
* @dataProvider provider_feedback
*/
public function test_question_delete_course($feedback) {
global $DB;
$this->resetAfterTest(true);
$this->setAdminUser();
list($category, $course, $quiz, $qcat, $questions) = $this->setup_quiz_and_questions('course');
// Test that the feedback works.
if ($feedback) {
$this->expectOutputRegex('|'.get_string('unusedcategorydeleted', 'question').'|');
}
question_delete_course($course, $feedback);
// Verify category deleted.
$criteria = array('id' => $qcat->id);
$this->assertEquals(0, $DB->count_records('question_categories', $criteria));
// Verify questions deleted or moved.
$criteria = array('category' => $qcat->id);
$this->assertEquals(0, $DB->count_records('question', $criteria));
}
/**
* This function tests the question_delete_course_category function.
*
* @param bool $feedback Whether to return feedback
* @dataProvider provider_feedback
*/
public function test_question_delete_course_category($feedback) {
global $DB;
$this->resetAfterTest(true);
$this->setAdminUser();
list($category, $course, $quiz, $qcat, $questions) = $this->setup_quiz_and_questions('category');
// Test that the feedback works.
if ($feedback) {
$this->expectOutputRegex('|'.get_string('unusedcategorydeleted', 'question').'|');
}
question_delete_course_category($category, 0, $feedback);
// Verify category deleted.
$criteria = array('id' => $qcat->id);
$this->assertEquals(0, $DB->count_records('question_categories', $criteria));
// Verify questions deleted or moved.
$criteria = array('category' => $qcat->id);
$this->assertEquals(0, $DB->count_records('question', $criteria));
}
public function test_question_remove_stale_questions_from_category() {
global $DB;
$this->resetAfterTest(true);
$dg = $this->getDataGenerator();
$course = $dg->create_course();
$quiz = $dg->create_module('quiz', ['course' => $course->id]);
$qgen = $dg->get_plugin_generator('core_question');
$context = context_system::instance();
$qcat1 = $qgen->create_question_category(['contextid' => $context->id]);
$q1a = $qgen->create_question('shortanswer', null, ['category' => $qcat1->id]); // Will be hidden.
$q1b = $qgen->create_question('random', null, ['category' => $qcat1->id]); // Will not be used.
$DB->set_field('question', 'hidden', 1, ['id' => $q1a->id]);
$qcat2 = $qgen->create_question_category(['contextid' => $context->id]);
$q2a = $qgen->create_question('shortanswer', null, ['category' => $qcat2->id]); // Will be hidden.
$q2b = $qgen->create_question('shortanswer', null, ['category' => $qcat2->id]); // Will be hidden but used.
$q2c = $qgen->create_question('random', null, ['category' => $qcat2->id]); // Will not be used.
$q2d = $qgen->create_question('random', null, ['category' => $qcat2->id]); // Will be used.
$DB->set_field('question', 'hidden', 1, ['id' => $q2a->id]);
$DB->set_field('question', 'hidden', 1, ['id' => $q2b->id]);
quiz_add_quiz_question($q2b->id, $quiz);
quiz_add_quiz_question($q2d->id, $quiz);
$this->assertEquals(2, $DB->count_records('question', ['category' => $qcat1->id]));
$this->assertEquals(4, $DB->count_records('question', ['category' => $qcat2->id]));
// Non-existing category, nothing will happen.
question_remove_stale_questions_from_category(0);
$this->assertEquals(2, $DB->count_records('question', ['category' => $qcat1->id]));
$this->assertEquals(4, $DB->count_records('question', ['category' => $qcat2->id]));
// First category, should be empty afterwards.
question_remove_stale_questions_from_category($qcat1->id);
$this->assertEquals(0, $DB->count_records('question', ['category' => $qcat1->id]));
$this->assertEquals(4, $DB->count_records('question', ['category' => $qcat2->id]));
$this->assertFalse($DB->record_exists('question', ['id' => $q1a->id]));
$this->assertFalse($DB->record_exists('question', ['id' => $q1b->id]));
// Second category, used questions should be left untouched.
question_remove_stale_questions_from_category($qcat2->id);
$this->assertEquals(0, $DB->count_records('question', ['category' => $qcat1->id]));
$this->assertEquals(2, $DB->count_records('question', ['category' => $qcat2->id]));
$this->assertFalse($DB->record_exists('question', ['id' => $q2a->id]));
$this->assertTrue($DB->record_exists('question', ['id' => $q2b->id]));
$this->assertFalse($DB->record_exists('question', ['id' => $q2c->id]));
$this->assertTrue($DB->record_exists('question', ['id' => $q2d->id]));
}
}