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See Release Notes

  • Bug fixes for general core bugs in 4.2.x will end 22 April 2024 (12 months).
  • Bug fixes for security issues in 4.2.x will end 7 October 2024 (18 months).
  • PHP version: minimum PHP 8.0.0 Note: minimum PHP version has increased since Moodle 4.1. PHP 8.1.x is supported too.
<?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/>.

namespace mod_quiz;

use question_engine;
use mod_quiz\quiz_settings;

defined('MOODLE_INTERNAL') || die();

global $CFG;
require_once($CFG->dirroot . '/mod/quiz/locallib.php');
> require_once($CFG->dirroot . '/mod/quiz/tests/quiz_question_helper_test_trait.php');
/** * Quiz attempt walk through using data from csv file. * * @package mod_quiz * @category test * @copyright 2013 The Open University * @author Jamie Pratt <me@jamiep.org> * @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later */ class attempt_walkthrough_from_csv_test extends \advanced_testcase {
> use \quiz_question_helper_test_trait; /** >
* @var string[] names of the files which contain the test data. */ protected $files = ['questions', 'steps', 'results']; /** * @var stdClass the quiz record we create. */ protected $quiz; /** * @var array with slot no => question name => questionid. Question ids of questions created in the same category as random q. */ protected $randqids; /** * The only test in this class. This is run multiple times depending on how many sets of files there are in fixtures/ * directory. * * @param array $quizsettings of settings read from csv file quizzes.csv * @param array $csvdata of data read from csv file "questionsXX.csv", "stepsXX.csv" and "resultsXX.csv". * @dataProvider get_data_for_walkthrough */ public function test_walkthrough_from_csv($quizsettings, $csvdata) { // CSV data files for these tests were generated using : // https://github.com/jamiepratt/moodle-quiz-tools/tree/master/responsegenerator $this->create_quiz_simulate_attempts_and_check_results($quizsettings, $csvdata); } public function create_quiz($quizsettings, $qs) { global $SITE, $DB; $this->setAdminUser(); /** @var core_question_generator $questiongenerator */ $questiongenerator = $this->getDataGenerator()->get_plugin_generator('core_question'); $slots = []; $qidsbycat = []; $sumofgrades = 0; foreach ($qs as $qsrow) { $q = $this->explode_dot_separated_keys_to_make_subindexs($qsrow); $catname = ['name' => $q['cat']]; if (!$cat = $DB->get_record('question_categories', ['name' => $q['cat']])) { $cat = $questiongenerator->create_question_category($catname); } $q['catid'] = $cat->id; foreach (['which' => null, 'overrides' => []] as $key => $default) { if (empty($q[$key])) { $q[$key] = $default; } } if ($q['type'] !== 'random') { // Don't actually create random questions here. $overrides = ['category' => $cat->id, 'defaultmark' => $q['mark']] + $q['overrides']; if ($q['type'] === 'truefalse') { // True/false question can never have hints, but sometimes we need to put them // in the CSV file, to keep it rectangular. unset($overrides['hint']); } $question = $questiongenerator->create_question($q['type'], $q['which'], $overrides); $q['id'] = $question->id; if (!isset($qidsbycat[$q['cat']])) { $qidsbycat[$q['cat']] = []; } if (!empty($q['which'])) { $name = $q['type'].'_'.$q['which']; } else { $name = $q['type']; } $qidsbycat[$q['catid']][$name] = $q['id']; } if (!empty($q['slot'])) { $slots[$q['slot']] = $q; $sumofgrades += $q['mark']; } } ksort($slots); // Make a quiz. $quizgenerator = $this->getDataGenerator()->get_plugin_generator('mod_quiz'); // Settings from param override defaults. $aggregratedsettings = $quizsettings + ['course' => $SITE->id, 'questionsperpage' => 0, 'grade' => 100.0, 'sumgrades' => $sumofgrades]; $this->quiz = $quizgenerator->create_instance($aggregratedsettings); $this->randqids = []; foreach ($slots as $slotno => $slotquestion) { if ($slotquestion['type'] !== 'random') { quiz_add_quiz_question($slotquestion['id'], $this->quiz, 0, $slotquestion['mark']); } else {
< quiz_add_random_questions($this->quiz, 0, $slotquestion['catid'], 1, 0);
> $this->add_random_questions($this->quiz->id, 0, $slotquestion['catid'], 1);
$this->randqids[$slotno] = $qidsbycat[$slotquestion['catid']]; } } } /** * Create quiz, simulate attempts and check results (if resultsXX.csv exists). * * @param array $quizsettings Quiz overrides for this quiz. * @param array $csvdata Data loaded from csv files for this test. */ protected function create_quiz_simulate_attempts_and_check_results(array $quizsettings, array $csvdata) { $this->resetAfterTest(); $this->create_quiz($quizsettings, $csvdata['questions']); $attemptids = $this->walkthrough_attempts($csvdata['steps']); if (isset($csvdata['results'])) { $this->check_attempts_results($csvdata['results'], $attemptids); } } /** * Get full path of CSV file. * * @param string $setname * @param string $test * @return string full path of file. */ protected function get_full_path_of_csv_file(string $setname, string $test): string { return __DIR__."/fixtures/{$setname}{$test}.csv"; } /** * Load dataset from CSV file "{$setname}{$test}.csv". * * @param string $setname * @param string $test * @return array */ protected function load_csv_data_file(string $setname, string $test = ''): array { $files = [$setname => $this->get_full_path_of_csv_file($setname, $test)]; return $this->dataset_from_files($files)->get_rows([$setname]); } /** * Break down row of csv data into sub arrays, according to column names. * * @param array $row from csv file with field names with parts separate by '.'. * @return array the row with each part of the field name following a '.' being a separate sub array's index. */ protected function explode_dot_separated_keys_to_make_subindexs(array $row): array { $parts = []; foreach ($row as $columnkey => $value) { $newkeys = explode('.', trim($columnkey)); $placetoputvalue =& $parts; foreach ($newkeys as $newkeydepth => $newkey) { if ($newkeydepth + 1 === count($newkeys)) { $placetoputvalue[$newkey] = $value; } else { // Going deeper down. if (!isset($placetoputvalue[$newkey])) { $placetoputvalue[$newkey] = []; } $placetoputvalue =& $placetoputvalue[$newkey]; } } } return $parts; } /** * Data provider method for test_walkthrough_from_csv. Called by PHPUnit. * * @return array One array element for each run of the test. Each element contains an array with the params for * test_walkthrough_from_csv. */ public function get_data_for_walkthrough(): array { $quizzes = $this->load_csv_data_file('quizzes')['quizzes']; $datasets = []; foreach ($quizzes as $quizsettings) { $dataset = []; foreach ($this->files as $file) { if (file_exists($this->get_full_path_of_csv_file($file, $quizsettings['testnumber']))) { $dataset[$file] = $this->load_csv_data_file($file, $quizsettings['testnumber'])[$file]; } } $datasets[] = [$quizsettings, $dataset]; } return $datasets; } /** * @param array $steps the step data from the csv file. * @return array attempt no as in csv file => the id of the quiz_attempt as stored in the db. */ protected function walkthrough_attempts(array $steps): array { global $DB; $attemptids = []; foreach ($steps as $steprow) { $step = $this->explode_dot_separated_keys_to_make_subindexs($steprow); // Find existing user or make a new user to do the quiz. $username = ['firstname' => $step['firstname'], 'lastname' => $step['lastname']]; if (!$user = $DB->get_record('user', $username)) { $user = $this->getDataGenerator()->create_user($username); } if (!isset($attemptids[$step['quizattempt']])) { // Start the attempt. $quizobj = quiz_settings::create($this->quiz->id, $user->id); $quba = question_engine::make_questions_usage_by_activity('mod_quiz', $quizobj->get_context()); $quba->set_preferred_behaviour($quizobj->get_quiz()->preferredbehaviour); $prevattempts = quiz_get_user_attempts($this->quiz->id, $user->id, 'all', true); $attemptnumber = count($prevattempts) + 1; $timenow = time(); $attempt = quiz_create_attempt($quizobj, $attemptnumber, null, $timenow, false, $user->id); // Select variant and / or random sub question. if (!isset($step['variants'])) { $step['variants'] = []; } if (isset($step['randqs'])) { // Replace 'names' with ids. foreach ($step['randqs'] as $slotno => $randqname) { $step['randqs'][$slotno] = $this->randqids[$slotno][$randqname]; } } else { $step['randqs'] = []; } quiz_start_new_attempt($quizobj, $quba, $attempt, $attemptnumber, $timenow, $step['randqs'], $step['variants']); quiz_attempt_save_started($quizobj, $quba, $attempt); $attemptid = $attemptids[$step['quizattempt']] = $attempt->id; } else { $attemptid = $attemptids[$step['quizattempt']]; } // Process some responses from the student. $attemptobj = quiz_attempt::create($attemptid); $attemptobj->process_submitted_actions($timenow, false, $step['responses']); // Finish the attempt. if (!isset($step['finished']) || ($step['finished'] == 1)) { $attemptobj = quiz_attempt::create($attemptid); $attemptobj->process_finish($timenow, false); } } return $attemptids; } /** * @param array $results the results data from the csv file. * @param array $attemptids attempt no as in csv file => the id of the quiz_attempt as stored in the db. */ protected function check_attempts_results(array $results, array $attemptids) { foreach ($results as $resultrow) { $result = $this->explode_dot_separated_keys_to_make_subindexs($resultrow); // Re-load quiz attempt data. $attemptobj = quiz_attempt::create($attemptids[$result['quizattempt']]); $this->check_attempt_results($result, $attemptobj); } } /** * Check that attempt results are as specified in $result. * * @param array $result row of data read from csv file. * @param quiz_attempt $attemptobj the attempt object loaded from db. */ protected function check_attempt_results(array $result, quiz_attempt $attemptobj) { foreach ($result as $fieldname => $value) { if ($value === '!NULL!') { $value = null; } switch ($fieldname) { case 'quizattempt' : break; case 'attemptnumber' : $this->assertEquals($value, $attemptobj->get_attempt_number()); break; case 'slots' : foreach ($value as $slotno => $slottests) { foreach ($slottests as $slotfieldname => $slotvalue) { switch ($slotfieldname) { case 'mark' : $this->assertEquals(round($slotvalue, 2), $attemptobj->get_question_mark($slotno), "Mark for slot $slotno of attempt {$result['quizattempt']}."); break; default : throw new \coding_exception('Unknown slots sub field column in csv file ' .s($slotfieldname)); } } } break; case 'finished' : $this->assertEquals((bool)$value, $attemptobj->is_finished()); break; case 'summarks' : $this->assertEquals((float)$value, $attemptobj->get_sum_marks(), "Sum of marks of attempt {$result['quizattempt']}."); break; case 'quizgrade' : // Check quiz grades. $grades = quiz_get_user_grades($attemptobj->get_quiz(), $attemptobj->get_userid()); $grade = array_shift($grades); $this->assertEquals($value, $grade->rawgrade, "Quiz grade for attempt {$result['quizattempt']}."); break; case 'gradebookgrade' : // Check grade book. $gradebookgrades = grade_get_grades($attemptobj->get_courseid(), 'mod', 'quiz', $attemptobj->get_quizid(), $attemptobj->get_userid()); $gradebookitem = array_shift($gradebookgrades->items); $gradebookgrade = array_shift($gradebookitem->grades); $this->assertEquals($value, $gradebookgrade->grade, "Gradebook grade for attempt {$result['quizattempt']}."); break; default : throw new \coding_exception('Unknown column in csv file '.s($fieldname)); } } } }