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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 quiz's own question bank view class.
 *
 * @package    mod_quiz
 * @category   test
 * @copyright  2018 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/editlib.php');

/**
 * Unit tests for the quiz's own question bank view class.
 *
 * @copyright  2018 the Open University
 * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
 */
class quiz_question_bank_view_testcase extends advanced_testcase {

public function test_viewing_question_bank_should_not_load_individual_questions() {
        $this->resetAfterTest();
        $this->setAdminUser();
        $generator = $this->getDataGenerator();
        /** @var core_question_generator $questiongenerator */
        $questiongenerator = $generator->get_plugin_generator('core_question');

// Create a course and a quiz.
        $course = $generator->create_course();
        $quiz = $this->getDataGenerator()->create_module('quiz', array('course' => $course->id));
        $context = context_module::instance($quiz->cmid);
        $cm = get_coursemodule_from_instance('quiz', $quiz->id);

// Create a question in the default category.
        $contexts = new question_edit_contexts($context);
        $cat = question_make_default_categories($contexts->all());
        $questiondata = $questiongenerator->create_question('numerical', null,
                ['name' => 'Example question', 'category' => $cat->id]);

// Ensure the question is not in the cache.
        $cache = cache::make('core', 'questiondata');
        $cache->delete($questiondata->id);

// Generate the view.
        $view = new mod_quiz\question\bank\custom_view($contexts, new moodle_url('/'), $course, $cm, $quiz);
        ob_start();
        $view->display('editq', 0, 20, $cat->id . ',' . $cat->contextid, false, false, false);
        $html = ob_get_clean();

// Verify the output includes the expected question.
        $this->assertContains('Example question', $html);

// Verify the question has not been loaded into the cache.
        $this->assertFalse($cache->has($questiondata->id));
    }
}