Proyectos de Subversion Moodle

<?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 quiz_overview;

use core_question\local\bank\question_version_status;

use mod_quiz\external\submit_question_version;

use mod_quiz\quiz_attempt;

use question_engine;

use mod_quiz\quiz_settings;

use mod_quiz\local\reports\attempts_report;

use quiz_overview_options;

use quiz_overview_report;

use quiz_overview_table;

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

global $CFG;

require_once($CFG->dirroot . '/mod/quiz/locallib.php');

require_once($CFG->dirroot . '/mod/quiz/report/reportlib.php');

require_once($CFG->dirroot . '/mod/quiz/report/overview/report.php');

require_once($CFG->dirroot . '/mod/quiz/report/overview/overview_form.php');

require_once($CFG->dirroot . '/mod/quiz/report/overview/tests/helpers.php');

require_once($CFG->dirroot . '/mod/quiz/tests/quiz_question_helper_test_trait.php');

/**

 * Tests for the quiz overview report.

 *

 * @package    quiz_overview

 * @copyright  2014 The Open University

 * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later

 */

class report_test extends \advanced_testcase {

    use \quiz_question_helper_test_trait;

    /**

     * Data provider for test_report_sql.

     *

     * @return array the data for the test sub-cases.

     */

    public function report_sql_cases(): array {

        return [[null], ['csv']]; // Only need to test on or off, not all download types.

    }

    /**

     * Test how the report queries the database.

     *

     * @param string|null $isdownloading a download type, or null.

     * @dataProvider report_sql_cases

     */

    public function test_report_sql(?string $isdownloading): void {

        global $DB;

        $this->resetAfterTest();

        // Create a course and a quiz.

        $generator = $this->getDataGenerator();

        $course = $generator->create_course();

        $quizgenerator = $generator->get_plugin_generator('mod_quiz');

        $quiz = $quizgenerator->create_instance(['course' => $course->id,

                'grademethod' => QUIZ_GRADEHIGHEST, 'grade' => 100.0, 'sumgrades' => 10.0,

                'attempts' => 10]);

        // Add one question.

        /** @var core_question_generator $questiongenerator */

        $questiongenerator = $this->getDataGenerator()->get_plugin_generator('core_question');

        $cat = $questiongenerator->create_question_category();

        $q = $questiongenerator->create_question('essay', 'plain', ['category' => $cat->id]);

        quiz_add_quiz_question($q->id, $quiz, 0 , 10);

        // Create some students and enrol them in the course.

        $student1 = $generator->create_user();

        $student2 = $generator->create_user();

        $student3 = $generator->create_user();

        $generator->enrol_user($student1->id, $course->id);

        $generator->enrol_user($student2->id, $course->id);

        $generator->enrol_user($student3->id, $course->id);

        // This line is not really necessary for the test asserts below,

        // but what it does is add an extra user row returned by

        // get_enrolled_with_capabilities_join because of a second enrolment.

        // The extra row returned used to make $table->query_db complain

        // about duplicate records. So this is really a test that an extra

        // student enrolment does not cause duplicate records in this query.

        $generator->enrol_user($student2->id, $course->id, null, 'self');

        // Also create a user who should not appear in the reports,

        // because they have a role with neither 'mod/quiz:attempt'

        // nor 'mod/quiz:reviewmyattempts'.

        $tutor = $generator->create_user();

        $generator->enrol_user($tutor->id, $course->id, 'teacher');

        // The test data.

        $timestamp = 1234567890;

        $attempts = [

            [$quiz, $student1, 1, 0.0,  quiz_attempt::FINISHED],

            [$quiz, $student1, 2, 5.0,  quiz_attempt::FINISHED],

            [$quiz, $student1, 3, 8.0,  quiz_attempt::FINISHED],

            [$quiz, $student1, 4, null, quiz_attempt::ABANDONED],

            [$quiz, $student1, 5, null, quiz_attempt::IN_PROGRESS],

            [$quiz, $student2, 1, null, quiz_attempt::ABANDONED],

            [$quiz, $student2, 2, null, quiz_attempt::ABANDONED],

            [$quiz, $student2, 3, 7.0,  quiz_attempt::FINISHED],

            [$quiz, $student2, 4, null, quiz_attempt::ABANDONED],

            [$quiz, $student2, 5, null, quiz_attempt::ABANDONED],

        ];

        // Load it in to quiz attempts table.

        foreach ($attempts as $attemptdata) {

            list($quiz, $student, $attemptnumber, $sumgrades, $state) = $attemptdata;

            $timestart = $timestamp + $attemptnumber * 3600;

            $quizobj = quiz_settings::create($quiz->id, $student->id);

            $quba = question_engine::make_questions_usage_by_activity('mod_quiz', $quizobj->get_context());

            $quba->set_preferred_behaviour($quizobj->get_quiz()->preferredbehaviour);

            // Create the new attempt and initialize the question sessions.

            $attempt = quiz_create_attempt($quizobj, $attemptnumber, null, $timestart, false, $student->id);

            $attempt = quiz_start_new_attempt($quizobj, $quba, $attempt, $attemptnumber, $timestamp);

            $attempt = quiz_attempt_save_started($quizobj, $quba, $attempt);

            // Process some responses from the student.

            $attemptobj = quiz_attempt::create($attempt->id);

            switch ($state) {

                case quiz_attempt::ABANDONED:

                    $attemptobj->process_abandon($timestart + 300, false);

                    break;

                case quiz_attempt::IN_PROGRESS:

                    // Do nothing.

                    break;

                case quiz_attempt::FINISHED:

                    // Save answer and finish attempt.

                    $attemptobj->process_submitted_actions($timestart + 300, false, [

                            1 => ['answer' => 'My essay by ' . $student->firstname, 'answerformat' => FORMAT_PLAIN]]);

                    $attemptobj->process_finish($timestart + 600, false);

                    // Manually grade it.

                    $quba = $attemptobj->get_question_usage();

                    $quba->get_question_attempt(1)->manual_grade(

                            'Comment', $sumgrades, FORMAT_HTML, $timestart + 1200);

                    question_engine::save_questions_usage_by_activity($quba);

                    $update = new \stdClass();

                    $update->id = $attemptobj->get_attemptid();

                    $update->timemodified = $timestart + 1200;

                    $update->sumgrades = $quba->get_total_mark();

                    $DB->update_record('quiz_attempts', $update);

                    $attemptobj->get_quizobj()->get_grade_calculator()->recompute_final_grade($student->id);

                    break;

            }

        }

        // Actually getting the SQL to run is quite hard. Do a minimal set up of

        // some objects.

        $context = \context_module::instance($quiz->cmid);

        $cm = get_coursemodule_from_id('quiz', $quiz->cmid);

        $qmsubselect = quiz_report_qm_filter_select($quiz);

        $studentsjoins = get_enrolled_with_capabilities_join($context, '',

                ['mod/quiz:attempt', 'mod/quiz:reviewmyattempts']);

        $empty = new \core\dml\sql_join();

        // Set the options.

        $reportoptions = new quiz_overview_options('overview', $quiz, $cm, null);

        $reportoptions->attempts = attempts_report::ENROLLED_ALL;

        $reportoptions->onlygraded = true;

        $reportoptions->states = [quiz_attempt::IN_PROGRESS, quiz_attempt::OVERDUE, quiz_attempt::FINISHED];

        // Now do a minimal set-up of the table class.

        $q->slot = 1;

        $q->maxmark = 10;

        $table = new quiz_overview_table($quiz, $context, $qmsubselect, $reportoptions,

                $empty, $studentsjoins, [1 => $q], null);

        $table->download = $isdownloading; // Cannot call the is_downloading API, because it gives errors.

        $table->define_columns(['fullname']);

        $table->sortable(true, 'uniqueid');

        $table->define_baseurl(new \moodle_url('/mod/quiz/report.php'));

        $table->setup();

        // Run the query.

        $table->setup_sql_queries($studentsjoins);

        $table->query_db(30, false);

        // Should be 4 rows, matching count($table->rawdata) tested below.

        // The count is only done if not downloading.

        if (!$isdownloading) {

            $this->assertEquals(4, $table->totalrows);

        }

        // Verify what was returned: Student 1's best and in progress attempts.

        // Student 2's finshed attempt, and Student 3 with no attempt.

        // The array key is {student id}#{attempt number}.

        $this->assertEquals(4, count($table->rawdata));

        $this->assertArrayHasKey($student1->id . '#3', $table->rawdata);

        $this->assertEquals(1, $table->rawdata[$student1->id . '#3']->gradedattempt);

        $this->assertArrayHasKey($student1->id . '#3', $table->rawdata);

        $this->assertEquals(0, $table->rawdata[$student1->id . '#5']->gradedattempt);

        $this->assertArrayHasKey($student2->id . '#3', $table->rawdata);

        $this->assertEquals(1, $table->rawdata[$student2->id . '#3']->gradedattempt);

        $this->assertArrayHasKey($student3->id . '#0', $table->rawdata);

        $this->assertEquals(0, $table->rawdata[$student3->id . '#0']->gradedattempt);

        // Check the calculation of averages.

        $averagerow = $table->compute_average_row('overallaverage', $studentsjoins);

        $this->assertStringContainsString('75.00', $averagerow['sumgrades']);

        $this->assertStringContainsString('75.00', $averagerow['qsgrade1']);

        if (!$isdownloading) {

            $this->assertStringContainsString('(2)', $averagerow['sumgrades']);

            $this->assertStringContainsString('(2)', $averagerow['qsgrade1']);

        }

        // Ensure that filtering by initial does not break it.

        // This involves setting a private properly of the base class, which is

        // only really possible using reflection :-(.

        $reflectionobject = new \ReflectionObject($table);

        while ($parent = $reflectionobject->getParentClass()) {

            $reflectionobject = $parent;

        }

        $prefsproperty = $reflectionobject->getProperty('prefs');

        $prefs = $prefsproperty->getValue($table);

        $prefs['i_first'] = 'A';

        $prefsproperty->setValue($table, $prefs);

        list($fields, $from, $where, $params) = $table->base_sql($studentsjoins);

        $table->set_count_sql("SELECT COUNT(1) FROM (SELECT $fields FROM $from WHERE $where) temp WHERE 1 = 1", $params);

        $table->set_sql($fields, $from, $where, $params);

        $table->query_db(30, false);

        // Just verify that this does not cause a fatal error.

    }

    /**

     * Bands provider.

     * @return array

     */

    public function get_bands_count_and_width_provider(): array {

        return [

            [10, [20, .5]],

            [20, [20, 1]],

            [30, [15, 2]],

            // TODO MDL-55068 Handle bands better when grade is 50.

            // [50, [10, 5]],

            [100, [20, 5]],

            [200, [20, 10]],

        ];

    }

    /**

     * Test bands.

     *

     * @dataProvider get_bands_count_and_width_provider

     * @param int $grade grade

     * @param array $expected

     */

    public function test_get_bands_count_and_width(int $grade, array $expected): void {

        $this->resetAfterTest();

        $quizgenerator = $this->getDataGenerator()->get_plugin_generator('mod_quiz');

        $quiz = $quizgenerator->create_instance(['course' => SITEID, 'grade' => $grade]);

        $this->assertEquals($expected, quiz_overview_report::get_bands_count_and_width($quiz));

    }

    /**

     * Test delete_selected_attempts function.

     */

    public function test_delete_selected_attempts(): void {

        $this->resetAfterTest();

        $timestamp = 1234567890;

        $timestart = $timestamp + 3600;

        // Create a course and a quiz.

        $generator = $this->getDataGenerator();

        $course = $generator->create_course();

        $quizgenerator = $generator->get_plugin_generator('mod_quiz');

        $quiz = $quizgenerator->create_instance([

                'course' => $course->id,

                'grademethod' => QUIZ_GRADEHIGHEST,

                'grade' => 100.0,

                'sumgrades' => 10.0,

                'attempts' => 10

        ]);

        // Add one question.

        /** @var core_question_generator $questiongenerator */

        $questiongenerator = $this->getDataGenerator()->get_plugin_generator('core_question');

        $cat = $questiongenerator->create_question_category();

        $q = $questiongenerator->create_question('essay', 'plain', ['category' => $cat->id]);

        quiz_add_quiz_question($q->id, $quiz, 0 , 10);

        // Create student and enrol them in the course.

        // Note: we create two enrolments, to test the problem reported in MDL-67942.

        $student = $generator->create_user();

        $generator->enrol_user($student->id, $course->id);

        $generator->enrol_user($student->id, $course->id, null, 'self');

        $context = \context_module::instance($quiz->cmid);

        $cm = get_coursemodule_from_id('quiz', $quiz->cmid);

        $allowedjoins = get_enrolled_with_capabilities_join($context, '', ['mod/quiz:attempt', 'mod/quiz:reviewmyattempts']);

        $quizattemptsreport = new \testable_quiz_attempts_report();

        // Create the new attempt and initialize the question sessions.

        $quizobj = quiz_settings::create($quiz->id, $student->id);

        $quba = question_engine::make_questions_usage_by_activity('mod_quiz', $quizobj->get_context());

        $quba->set_preferred_behaviour($quizobj->get_quiz()->preferredbehaviour);

        $attempt = quiz_create_attempt($quizobj, 1, null, $timestart, false, $student->id);

        $attempt = quiz_start_new_attempt($quizobj, $quba, $attempt, 1, $timestamp);

        $attempt = quiz_attempt_save_started($quizobj, $quba, $attempt);

        // Delete the student's attempt.

        $quizattemptsreport->delete_selected_attempts($quiz, $cm, [$attempt->id], $allowedjoins);

    }

    /**

     * Test question regrade for selected versions.

     *

     * @covers ::regrade_question

     */

    public function test_regrade_question(): void {

        global $DB;

        $this->resetAfterTest();

        $this->setAdminUser();

        $course = $this->getDataGenerator()->create_course();

        $quiz = $this->create_test_quiz($course);

        $cm = get_fast_modinfo($course->id)->get_cm($quiz->cmid);

        $context = \context_module::instance($quiz->cmid);

        /** @var core_question_generator $questiongenerator */

        $questiongenerator = $this->getDataGenerator()->get_plugin_generator('core_question');

        // Create a couple of questions.

        $cat = $questiongenerator->create_question_category(['contextid' => $context->id]);

        $q = $questiongenerator->create_question('shortanswer', null,

                ['category' => $cat->id, 'name' => 'Toad scores 0.8']);

        // Create a version, the last one draft.

        // Sadly, update_question is a bit dodgy, so it can't handle updating the answer score.

        $q2 = $questiongenerator->update_question($q, null,

                ['name' => 'Toad now scores 1.0']);

        $toadanswer = $DB->get_record_select('question_answers',

                'question = ? AND ' . $DB->sql_compare_text('answer') . ' = ?',

                [$q2->id, 'toad'], '*', MUST_EXIST);

        $DB->set_field('question_answers', 'fraction', 1, ['id' => $toadanswer->id]);

        // Add the question to the quiz.

        quiz_add_quiz_question($q2->id, $quiz, 0, 10);

        // Attempt the quiz, submitting response 'toad'.

        $quizobj = quiz_settings::create($quiz->id);

        $attempt = quiz_prepare_and_start_new_attempt($quizobj, 1, null);

        $attemptobj = quiz_attempt::create($attempt->id);

        $attemptobj->process_submitted_actions(time(), false, [1 => ['answer' => 'toad']]);

        $attemptobj->process_finish(time(), false);

        // We should be using 'always latest' version, which is currently v2, so should be right.

        $this->assertEquals(10, $attemptobj->get_question_usage()->get_total_mark());

        // Now change the quiz to use fixed version 1.

        $slot = $quizobj->get_question($q2->id);

        submit_question_version::execute($slot->slotid, 1);

        // Regrade.

        $report = new quiz_overview_report();

        $report->init('overview', 'quiz_overview_settings_form', $quiz, $cm, $course);

        $report->regrade_attempt($attempt);

        // The mark should now be 8.

        $attemptobj = quiz_attempt::create($attempt->id);

        $this->assertEquals(8, $attemptobj->get_question_usage()->get_total_mark());

        // Now add two more versions, the second of which is draft.

        $q3 = $questiongenerator->update_question($q, null,

                ['name' => 'Toad now scores 0.5']);

        $toadanswer = $DB->get_record_select('question_answers',

                'question = ? AND ' . $DB->sql_compare_text('answer') . ' = ?',

                [$q3->id, 'toad'], '*', MUST_EXIST);

        $DB->set_field('question_answers', 'fraction', 0.5, ['id' => $toadanswer->id]);

        $q4 = $questiongenerator->update_question($q, null,

                ['name' => 'Toad now scores 0.3',

                    'status' => question_version_status::QUESTION_STATUS_DRAFT]);

        $toadanswer = $DB->get_record_select('question_answers',

                'question = ? AND ' . $DB->sql_compare_text('answer') . ' = ?',

                [$q4->id, 'toad'], '*', MUST_EXIST);

        $DB->set_field('question_answers', 'fraction', 0.3, ['id' => $toadanswer->id]);

        // Now change the quiz back to always latest and regrade again.

        submit_question_version::execute($slot->slotid, 0);

        $report->regrade_attempt($attempt);

        // Score should now be 5, because v3 is the latest non-draft version.

        $attemptobj = quiz_attempt::create($attempt->id);

        $this->assertEquals(5, $attemptobj->get_question_usage()->get_total_mark());

    }

}