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<?php
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// This file is part of Moodle - http://moodle.org/
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//
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// Moodle is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// Moodle is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with Moodle. If not, see <http://www.gnu.org/licenses/>.
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namespace core_question;
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defined('MOODLE_INTERNAL') || die();
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global $CFG;
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require_once($CFG->dirroot . '/backup/util/includes/backup_includes.php');
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require_once($CFG->dirroot . '/backup/util/includes/restore_includes.php');
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/**
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* Class core_question_backup_testcase
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*
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* @package core_question
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* @category test
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* @copyright 2018 Shamim Rezaie <shamim@moodle.com>
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* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
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*/
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class backup_test extends \advanced_testcase {
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/**
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* Makes a backup of the course.
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*
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* @param \stdClass $course The course object.
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* @return string Unique identifier for this backup.
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*/
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protected function backup_course($course) {
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global $CFG, $USER;
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// Turn off file logging, otherwise it can't delete the file (Windows).
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$CFG->backup_file_logger_level = \backup::LOG_NONE;
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// Do backup with default settings. MODE_IMPORT means it will just
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// create the directory and not zip it.
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$bc = new \backup_controller(\backup::TYPE_1COURSE, $course->id,
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\backup::FORMAT_MOODLE, \backup::INTERACTIVE_NO, \backup::MODE_IMPORT,
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$USER->id);
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$backupid = $bc->get_backupid();
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$bc->execute_plan();
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$bc->destroy();
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return $backupid;
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}
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/**
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* Restores a backup that has been made earlier.
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*
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* @param string $backupid The unique identifier of the backup.
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* @param string $fullname Full name of the new course that is going to be created.
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* @param string $shortname Short name of the new course that is going to be created.
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* @param int $categoryid The course category the backup is going to be restored in.
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* @param string[] $expectedprecheckwarning
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* @return int The new course id.
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*/
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protected function restore_course($backupid, $fullname, $shortname, $categoryid, $expectedprecheckwarning = []) {
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global $CFG, $USER;
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// Turn off file logging, otherwise it can't delete the file (Windows).
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$CFG->backup_file_logger_level = \backup::LOG_NONE;
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// Do restore to new course with default settings.
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$newcourseid = \restore_dbops::create_new_course($fullname, $shortname, $categoryid);
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$rc = new \restore_controller($backupid, $newcourseid,
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\backup::INTERACTIVE_NO, \backup::MODE_GENERAL, $USER->id,
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\backup::TARGET_NEW_COURSE);
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$precheck = $rc->execute_precheck();
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if (!$expectedprecheckwarning) {
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$this->assertTrue($precheck);
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} else {
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$precheckresults = $rc->get_precheck_results();
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$this->assertEqualsCanonicalizing($expectedprecheckwarning, $precheckresults['warnings']);
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$this->assertCount(1, $precheckresults);
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}
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$rc->execute_plan();
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$rc->destroy();
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return $newcourseid;
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}
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/**
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* This function tests backup and restore of question tags and course level question tags.
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*/
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public function test_backup_question_tags() {
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global $DB;
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$this->resetAfterTest();
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$this->setAdminUser();
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// Create a new course category and and a new course in that.
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$category1 = $this->getDataGenerator()->create_category();
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$course = $this->getDataGenerator()->create_course(['category' => $category1->id]);
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$courseshortname = $course->shortname;
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$coursefullname = $course->fullname;
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// Create 2 questions.
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$qgen = $this->getDataGenerator()->get_plugin_generator('core_question');
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$context = \context_coursecat::instance($category1->id);
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$qcat = $qgen->create_question_category(['contextid' => $context->id]);
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$question1 = $qgen->create_question('shortanswer', null, ['category' => $qcat->id, 'idnumber' => 'q1']);
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$question2 = $qgen->create_question('shortanswer', null, ['category' => $qcat->id, 'idnumber' => 'q2']);
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// Tag the questions with 2 question tags and 2 course level question tags.
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$qcontext = \context::instance_by_id($qcat->contextid);
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$coursecontext = \context_course::instance($course->id);
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\core_tag_tag::set_item_tags('core_question', 'question', $question1->id, $qcontext, ['qtag1', 'qtag2']);
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\core_tag_tag::set_item_tags('core_question', 'question', $question2->id, $qcontext, ['qtag3', 'qtag4']);
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\core_tag_tag::set_item_tags('core_question', 'question', $question1->id, $coursecontext, ['ctag1', 'ctag2']);
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\core_tag_tag::set_item_tags('core_question', 'question', $question2->id, $coursecontext, ['ctag3', 'ctag4']);
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// Create a quiz and add one of the questions to that.
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$quiz = $this->getDataGenerator()->create_module('quiz', ['course' => $course->id]);
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quiz_add_quiz_question($question1->id, $quiz);
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// Backup the course twice for future use.
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$backupid1 = $this->backup_course($course);
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$backupid2 = $this->backup_course($course);
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// Now delete almost everything.
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delete_course($course, false);
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question_delete_question($question1->id);
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question_delete_question($question2->id);
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// Restore the backup we had made earlier into a new course.
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$courseid2 = $this->restore_course($backupid1, $coursefullname, $courseshortname . '_2', $category1->id);
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// The questions should remain in the question category they were which is
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// a question category belonging to a course category context.
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$sql = 'SELECT q.*,
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qbe.idnumber
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FROM {question} q
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JOIN {question_versions} qv ON qv.questionid = q.id
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JOIN {question_bank_entries} qbe ON qbe.id = qv.questionbankentryid
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WHERE qbe.questioncategoryid = ?
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ORDER BY qbe.idnumber';
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$questions = $DB->get_records_sql($sql, [$qcat->id]);
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$this->assertCount(2, $questions);
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// Retrieve tags for each question and check if they are assigned at the right context.
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$qcount = 1;
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foreach ($questions as $question) {
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$tags = \core_tag_tag::get_item_tags('core_question', 'question', $question->id);
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// Each question is tagged with 4 tags (2 question tags + 2 course tags).
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$this->assertCount(4, $tags);
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foreach ($tags as $tag) {
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if (in_array($tag->name, ['ctag1', 'ctag2', 'ctag3', 'ctag4'])) {
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$expected = \context_course::instance($courseid2)->id;
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} else if (in_array($tag->name, ['qtag1', 'qtag2', 'qtag3', 'qtag4'])) {
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$expected = $qcontext->id;
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}
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$this->assertEquals($expected, $tag->taginstancecontextid);
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}
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// Also check idnumbers have been backed up and restored.
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$this->assertEquals('q' . $qcount, $question->idnumber);
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$qcount++;
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}
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// Now, again, delete everything including the course category.
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delete_course($courseid2, false);
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foreach ($questions as $question) {
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question_delete_question($question->id);
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}
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$category1->delete_full(false);
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// Create a new course category to restore the backup file into it.
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$category2 = $this->getDataGenerator()->create_category();
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$expectedwarnings = [
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get_string('qcategory2coursefallback', 'backup', (object) ['name' => 'top']),
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get_string('qcategory2coursefallback', 'backup', (object) ['name' => $qcat->name])
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];
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// Restore to a new course in the new course category.
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$courseid3 = $this->restore_course($backupid2, $coursefullname, $courseshortname . '_3', $category2->id, $expectedwarnings);
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$coursecontext3 = \context_course::instance($courseid3);
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// The questions should have been moved to a question category that belongs to a course context.
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$questions = $DB->get_records_sql("SELECT q.*
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FROM {question} q
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JOIN {question_versions} qv ON qv.questionid = q.id
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JOIN {question_bank_entries} qbe ON qbe.id = qv.questionbankentryid
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JOIN {question_categories} qc ON qc.id = qbe.questioncategoryid
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WHERE qc.contextid = ?", [$coursecontext3->id]);
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$this->assertCount(2, $questions);
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// Now, retrieve tags for each question and check if they are assigned at the right context.
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foreach ($questions as $question) {
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$tags = \core_tag_tag::get_item_tags('core_question', 'question', $question->id);
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// Each question is tagged with 4 tags (all are course tags now).
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$this->assertCount(4, $tags);
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foreach ($tags as $tag) {
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$this->assertEquals($coursecontext3->id, $tag->taginstancecontextid);
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}
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}
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}
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/**
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* Test that the question author is retained when they are enrolled in to the course.
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*/
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public function test_backup_question_author_retained_when_enrolled() {
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global $DB, $USER, $CFG;
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$this->resetAfterTest();
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$this->setAdminUser();
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// Create a course, a category and a user.
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$course = $this->getDataGenerator()->create_course();
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$category = $this->getDataGenerator()->create_category();
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$user = $this->getDataGenerator()->create_user();
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// Create a question.
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$questiongenerator = $this->getDataGenerator()->get_plugin_generator('core_question');
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$questioncategory = $questiongenerator->create_question_category();
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$overrides = ['name' => 'Test question', 'category' => $questioncategory->id,
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'createdby' => $user->id, 'modifiedby' => $user->id];
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$question = $questiongenerator->create_question('truefalse', null, $overrides);
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// Create a quiz and a questions.
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$quiz = $this->getDataGenerator()->create_module('quiz', array('course' => $course->id));
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quiz_add_quiz_question($question->id, $quiz);
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// Enrol user with a teacher role.
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$teacherrole = $DB->get_record('role', ['shortname' => 'editingteacher']);
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$this->getDataGenerator()->enrol_user($user->id, $course->id, $teacherrole->id, 'manual');
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// Backup the course.
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$bc = new \backup_controller(\backup::TYPE_1COURSE, $course->id, \backup::FORMAT_MOODLE,
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\backup::INTERACTIVE_NO, \backup::MODE_GENERAL, $USER->id);
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$backupid = $bc->get_backupid();
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$bc->execute_plan();
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$results = $bc->get_results();
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$file = $results['backup_destination'];
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$fp = get_file_packer('application/vnd.moodle.backup');
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$filepath = $CFG->dataroot . '/temp/backup/' . $backupid;
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$file->extract_to_pathname($fp, $filepath);
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$bc->destroy();
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// Delete the original course and related question.
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delete_course($course, false);
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question_delete_question($question->id);
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// Restore the course.
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$restoredcourseid = \restore_dbops::create_new_course($course->fullname, $course->shortname . '_1', $category->id);
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$rc = new \restore_controller($backupid, $restoredcourseid, \backup::INTERACTIVE_NO,
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\backup::MODE_GENERAL, $USER->id, \backup::TARGET_NEW_COURSE);
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$rc->execute_precheck();
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$rc->execute_plan();
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$rc->destroy();
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// Test the question author.
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$questions = $DB->get_records('question', ['name' => 'Test question']);
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$this->assertCount(1, $questions);
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$question3 = array_shift($questions);
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$this->assertEquals($user->id, $question3->createdby);
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$this->assertEquals($user->id, $question3->modifiedby);
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}
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/**
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* Test that the question author is retained when they are not enrolled in to the course,
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* but we are restoring the backup at the same site.
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*/
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public function test_backup_question_author_retained_when_not_enrolled() {
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global $DB, $USER, $CFG;
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$this->resetAfterTest();
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$this->setAdminUser();
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// Create a course, a category and a user.
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$course = $this->getDataGenerator()->create_course();
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$category = $this->getDataGenerator()->create_category();
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$user = $this->getDataGenerator()->create_user();
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// Create a question.
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$questiongenerator = $this->getDataGenerator()->get_plugin_generator('core_question');
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$questioncategory = $questiongenerator->create_question_category();
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$overrides = ['name' => 'Test question', 'category' => $questioncategory->id,
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'createdby' => $user->id, 'modifiedby' => $user->id];
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$question = $questiongenerator->create_question('truefalse', null, $overrides);
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// Create a quiz and a questions.
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$quiz = $this->getDataGenerator()->create_module('quiz', array('course' => $course->id));
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quiz_add_quiz_question($question->id, $quiz);
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// Backup the course.
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$bc = new \backup_controller(\backup::TYPE_1COURSE, $course->id, \backup::FORMAT_MOODLE,
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\backup::INTERACTIVE_NO, \backup::MODE_GENERAL, $USER->id);
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$backupid = $bc->get_backupid();
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$bc->execute_plan();
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$results = $bc->get_results();
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$file = $results['backup_destination'];
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$fp = get_file_packer('application/vnd.moodle.backup');
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$filepath = $CFG->dataroot . '/temp/backup/' . $backupid;
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$file->extract_to_pathname($fp, $filepath);
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$bc->destroy();
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// Delete the original course and related question.
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delete_course($course, false);
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question_delete_question($question->id);
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318 |
// Restore the course.
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$restoredcourseid = \restore_dbops::create_new_course($course->fullname, $course->shortname . '_1', $category->id);
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320 |
$rc = new \restore_controller($backupid, $restoredcourseid, \backup::INTERACTIVE_NO,
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\backup::MODE_GENERAL, $USER->id, \backup::TARGET_NEW_COURSE);
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$rc->execute_precheck();
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323 |
$rc->execute_plan();
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324 |
$rc->destroy();
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325 |
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326 |
// Test the question author.
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327 |
$questions = $DB->get_records('question', ['name' => 'Test question']);
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328 |
$this->assertCount(1, $questions);
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329 |
$question = array_shift($questions);
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330 |
$this->assertEquals($user->id, $question->createdby);
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331 |
$this->assertEquals($user->id, $question->modifiedby);
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332 |
}
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333 |
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|
334 |
/**
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335 |
* Test that the current user is set as a question author when we are restoring the backup
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|
336 |
* at the another site and the question author is not enrolled in to the course.
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|
337 |
*/
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338 |
public function test_backup_question_author_reset() {
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|
339 |
global $DB, $USER, $CFG;
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340 |
$this->resetAfterTest();
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341 |
$this->setAdminUser();
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|
342 |
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|
343 |
// Create a course, a category and a user.
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344 |
$course = $this->getDataGenerator()->create_course();
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345 |
$category = $this->getDataGenerator()->create_category();
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|
346 |
$user = $this->getDataGenerator()->create_user();
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|
347 |
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|
348 |
// Create a question.
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|
349 |
$questiongenerator = $this->getDataGenerator()->get_plugin_generator('core_question');
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|
350 |
$questioncategory = $questiongenerator->create_question_category();
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|
351 |
$overrides = ['name' => 'Test question', 'category' => $questioncategory->id,
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|
352 |
'createdby' => $user->id, 'modifiedby' => $user->id];
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|
353 |
$question = $questiongenerator->create_question('truefalse', null, $overrides);
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|
354 |
|
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|
355 |
// Create a quiz and a questions.
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|
356 |
$quiz = $this->getDataGenerator()->create_module('quiz', array('course' => $course->id));
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|
357 |
quiz_add_quiz_question($question->id, $quiz);
|
|
|
358 |
|
|
|
359 |
// Backup the course.
|
|
|
360 |
$bc = new \backup_controller(\backup::TYPE_1COURSE, $course->id, \backup::FORMAT_MOODLE,
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|
|
361 |
\backup::INTERACTIVE_NO, \backup::MODE_SAMESITE, $USER->id);
|
|
|
362 |
$backupid = $bc->get_backupid();
|
|
|
363 |
$bc->execute_plan();
|
|
|
364 |
$results = $bc->get_results();
|
|
|
365 |
$file = $results['backup_destination'];
|
|
|
366 |
$fp = get_file_packer('application/vnd.moodle.backup');
|
|
|
367 |
$filepath = $CFG->dataroot . '/temp/backup/' . $backupid;
|
|
|
368 |
$file->extract_to_pathname($fp, $filepath);
|
|
|
369 |
$bc->destroy();
|
|
|
370 |
|
|
|
371 |
// Delete the original course and related question.
|
|
|
372 |
delete_course($course, false);
|
|
|
373 |
question_delete_question($question->id);
|
|
|
374 |
|
|
|
375 |
// Emulate restoring to a different site.
|
|
|
376 |
set_config('siteidentifier', random_string(32) . 'not the same site');
|
|
|
377 |
|
|
|
378 |
// Restore the course.
|
|
|
379 |
$restoredcourseid = \restore_dbops::create_new_course($course->fullname, $course->shortname . '_1', $category->id);
|
|
|
380 |
$rc = new \restore_controller($backupid, $restoredcourseid, \backup::INTERACTIVE_NO,
|
|
|
381 |
\backup::MODE_SAMESITE, $USER->id, \backup::TARGET_NEW_COURSE);
|
|
|
382 |
$rc->execute_precheck();
|
|
|
383 |
$rc->execute_plan();
|
|
|
384 |
$rc->destroy();
|
|
|
385 |
|
|
|
386 |
// Test the question author.
|
|
|
387 |
$questions = $DB->get_records('question', ['name' => 'Test question']);
|
|
|
388 |
$this->assertCount(1, $questions);
|
|
|
389 |
$question = array_shift($questions);
|
|
|
390 |
$this->assertEquals($USER->id, $question->createdby);
|
|
|
391 |
$this->assertEquals($USER->id, $question->modifiedby);
|
|
|
392 |
}
|
|
|
393 |
}
|