You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
125 lines
6.1 KiB
125 lines
6.1 KiB
2 years ago
|
<?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/>.
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Tests for the {@link core_question\engine\variants\least_used_strategy} class.
|
||
|
|
*
|
||
|
|
* @package core_question
|
||
|
|
* @copyright 2015 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');
|
||
|
|
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Tests for the {@link core_question\engine\variants\least_used_strategy} class.
|
||
|
|
*
|
||
|
|
* @copyright 2015 The Open University
|
||
|
|
* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
|
||
|
|
*/
|
||
|
|
class least_used_variant_strategy_testcase extends advanced_testcase {
|
||
|
|
|
||
|
|
public function test_question_with_one_variant_always_picks_that() {
|
||
|
|
$question = test_question_maker::make_question('shortanswer');
|
||
|
|
$quba = question_engine::make_questions_usage_by_activity('test', context_system::instance());
|
||
|
|
$quba->set_preferred_behaviour('deferredfeedback');
|
||
|
|
$slot = $quba->add_question($question);
|
||
|
|
$quba->start_all_questions(new core_question\engine\variants\least_used_strategy(
|
||
|
|
$quba, new qubaid_list(array())));
|
||
|
|
$this->assertEquals(1, $quba->get_variant($slot));
|
||
|
|
}
|
||
|
|
|
||
|
|
public function test_synchronised_question_should_use_the_same_dataset() {
|
||
|
|
// Actually, we cheat here. We use the same question twice, not two different synchronised questions.
|
||
|
|
$question = test_question_maker::make_question('calculated');
|
||
|
|
$quba = question_engine::make_questions_usage_by_activity('test', context_system::instance());
|
||
|
|
$quba->set_preferred_behaviour('deferredfeedback');
|
||
|
|
$slot1 = $quba->add_question($question);
|
||
|
|
$slot2 = $quba->add_question($question);
|
||
|
|
$quba->start_all_questions(new core_question\engine\variants\least_used_strategy(
|
||
|
|
$quba, new qubaid_list(array())));
|
||
|
|
$this->assertEquals($quba->get_variant($slot1), $quba->get_variant($slot2));
|
||
|
|
}
|
||
|
|
|
||
|
|
public function test_second_attempt_uses_other_dataset() {
|
||
|
|
global $DB;
|
||
|
|
$this->resetAfterTest();
|
||
|
|
$generator = $this->getDataGenerator()->get_plugin_generator('core_question');
|
||
|
|
|
||
|
|
$cat = $generator->create_question_category();
|
||
|
|
$questiondata = $generator->create_question('calculated', null, array('category' => $cat->id));
|
||
|
|
|
||
|
|
// Create two dataset items.
|
||
|
|
$adefinitionid = $DB->get_field_sql("
|
||
|
|
SELECT qdd.id
|
||
|
|
FROM {question_dataset_definitions} qdd
|
||
|
|
JOIN {question_datasets} qd ON qd.datasetdefinition = qdd.id
|
||
|
|
WHERE qd.question = ?
|
||
|
|
AND qdd.name = ?", array($questiondata->id, 'a'));
|
||
|
|
$bdefinitionid = $DB->get_field_sql("
|
||
|
|
SELECT qdd.id
|
||
|
|
FROM {question_dataset_definitions} qdd
|
||
|
|
JOIN {question_datasets} qd ON qd.datasetdefinition = qdd.id
|
||
|
|
WHERE qd.question = ?
|
||
|
|
AND qdd.name = ?", array($questiondata->id, 'b'));
|
||
|
|
$DB->set_field('question_dataset_definitions', 'itemcount', 2, array('id' => $adefinitionid));
|
||
|
|
$DB->set_field('question_dataset_definitions', 'itemcount', 2, array('id' => $bdefinitionid));
|
||
|
|
$DB->insert_record('question_dataset_items', array('definition' => $adefinitionid,
|
||
|
|
'itemnumber' => 1, 'value' => 3));
|
||
|
|
$DB->insert_record('question_dataset_items', array('definition' => $bdefinitionid,
|
||
|
|
'itemnumber' => 1, 'value' => 7));
|
||
|
|
$DB->insert_record('question_dataset_items', array('definition' => $adefinitionid,
|
||
|
|
'itemnumber' => 2, 'value' => 6));
|
||
|
|
$DB->insert_record('question_dataset_items', array('definition' => $bdefinitionid,
|
||
|
|
'itemnumber' => 2, 'value' => 4));
|
||
|
|
|
||
|
|
$question = question_bank::load_question($questiondata->id);
|
||
|
|
|
||
|
|
$quba1 = question_engine::make_questions_usage_by_activity('test', context_system::instance());
|
||
|
|
$quba1->set_preferred_behaviour('deferredfeedback');
|
||
|
|
$slot1 = $quba1->add_question($question);
|
||
|
|
$quba1->start_all_questions(new core_question\engine\variants\least_used_strategy(
|
||
|
|
$quba1, new qubaid_list(array())));
|
||
|
|
question_engine::save_questions_usage_by_activity($quba1);
|
||
|
|
$variant1 = $quba1->get_variant($slot1);
|
||
|
|
|
||
|
|
// Second attempt should use the other variant.
|
||
|
|
$quba2 = question_engine::make_questions_usage_by_activity('test', context_system::instance());
|
||
|
|
$quba2->set_preferred_behaviour('deferredfeedback');
|
||
|
|
$slot2 = $quba2->add_question($question);
|
||
|
|
$quba2->start_all_questions(new core_question\engine\variants\least_used_strategy(
|
||
|
|
$quba1, new qubaid_list(array($quba1->get_id()))));
|
||
|
|
question_engine::save_questions_usage_by_activity($quba2);
|
||
|
|
$variant2 = $quba2->get_variant($slot2);
|
||
|
|
|
||
|
|
$this->assertNotEquals($variant1, $variant2);
|
||
|
|
|
||
|
|
// Third attempt uses either variant at random.
|
||
|
|
$quba3 = question_engine::make_questions_usage_by_activity('test', context_system::instance());
|
||
|
|
$quba3->set_preferred_behaviour('deferredfeedback');
|
||
|
|
$slot3 = $quba3->add_question($question);
|
||
|
|
$quba3->start_all_questions(new core_question\engine\variants\least_used_strategy(
|
||
|
|
$quba1, new qubaid_list(array($quba1->get_id(), $quba2->get_id()))));
|
||
|
|
$variant3 = $quba3->get_variant($slot3);
|
||
|
|
|
||
|
|
$this->assertTrue($variant3 == $variant1 || $variant3 == $variant2);
|
||
|
|
}
|
||
|
|
}
|