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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 /lib/gradelib.php.
*
* @package core_grades
* @category phpunit
* @copyright 2012 Andrew Davis
* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
*/
defined('MOODLE_INTERNAL') || die();
global $CFG;
require_once($CFG->libdir . '/gradelib.php');
class core_gradelib_testcase extends advanced_testcase {
public function test_grade_update_mod_grades() {
$this->resetAfterTest(true);
// Create a broken module instance.
$modinstance = new stdClass();
$modinstance->modname = 'doesntexist';
$this->assertFalse(grade_update_mod_grades($modinstance));
// A debug message should have been generated.
$this->assertDebuggingCalled();
// Create a course and instance of mod_assign.
$course = $this->getDataGenerator()->create_course();
$assigndata['course'] = $course->id;
$assigndata['name'] = 'lightwork assignment';
$modinstance = self::getDataGenerator()->create_module('assign', $assigndata);
// Function grade_update_mod_grades() requires 2 additional properties, cmidnumber and modname.
$cm = get_coursemodule_from_instance('assign', $modinstance->id, 0, false, MUST_EXIST);
$modinstance->cmidnumber = $cm->id;
$modinstance->modname = 'assign';
$this->assertTrue(grade_update_mod_grades($modinstance));
}
/**
* Tests the function remove_grade_letters().
*/
public function test_remove_grade_letters() {
global $DB;
$this->resetAfterTest();
$course = $this->getDataGenerator()->create_course();
$context = context_course::instance($course->id);
// Add a grade letter to the course.
$letter = new stdClass();
$letter->letter = 'M';
$letter->lowerboundary = '100';
$letter->contextid = $context->id;
$DB->insert_record('grade_letters', $letter);
// Pre-warm the cache, ensure that that the letter is cached.
$cache = cache::make('core', 'grade_letters');
// Check that the cache is empty beforehand.
$letters = $cache->get($context->id);
$this->assertFalse($letters);
// Call the function.
grade_get_letters($context);
$letters = $cache->get($context->id);
$this->assertEquals(1, count($letters));
$this->assertTrue(in_array($letter->letter, $letters));
remove_grade_letters($context, false);
// Confirm grade letter was deleted.
$this->assertEquals(0, $DB->count_records('grade_letters'));
// Confirm grade letter is also deleted from cache.
$letters = $cache->get($context->id);
$this->assertFalse($letters);
}
/**
* Tests the function grade_course_category_delete().
*/
public function test_grade_course_category_delete() {
global $DB;
$this->resetAfterTest();
$category = core_course_category::create(array('name' => 'Cat1'));
// Add a grade letter to the category.
$letter = new stdClass();
$letter->letter = 'M';
$letter->lowerboundary = '100';
$letter->contextid = context_coursecat::instance($category->id)->id;
$DB->insert_record('grade_letters', $letter);
grade_course_category_delete($category->id, '', false);
// Confirm grade letter was deleted.
$this->assertEquals(0, $DB->count_records('grade_letters'));
}
/**
* Tests the function grade_regrade_final_grades().
*/
public function test_grade_regrade_final_grades() {
global $DB;
$this->resetAfterTest();
// Setup some basics.
$course = $this->getDataGenerator()->create_course();
$user = $this->getDataGenerator()->create_user();
$this->getDataGenerator()->enrol_user($user->id, $course->id, 'student');
// We need two grade items.
$params = ['idnumber' => 'g1', 'courseid' => $course->id];
$g1 = new grade_item($this->getDataGenerator()->create_grade_item($params));
unset($params['idnumber']);
$g2 = new grade_item($this->getDataGenerator()->create_grade_item($params));
$category = new grade_category($this->getDataGenerator()->create_grade_category($params));
$catitem = $category->get_grade_item();
// Now set a calculation.
$catitem->set_calculation('=[[g1]]');
$catitem->update();
// Everything needs updating.
$this->assertEquals(4, $DB->count_records('grade_items', ['courseid' => $course->id, 'needsupdate' => 1]));
grade_regrade_final_grades($course->id);
// See that everything has been updated.
$this->assertEquals(0, $DB->count_records('grade_items', ['courseid' => $course->id, 'needsupdate' => 1]));
$g1->delete();
// Now there is one that needs updating.
$this->assertEquals(1, $DB->count_records('grade_items', ['courseid' => $course->id, 'needsupdate' => 1]));
// This can cause an infinite loop if things go... poorly.
grade_regrade_final_grades($course->id);
// Now because of the failure, two things need updating.
$this->assertEquals(2, $DB->count_records('grade_items', ['courseid' => $course->id, 'needsupdate' => 1]));
}
/**
* Tests for the grade_get_date_for_user_grade function.
*
* @dataProvider grade_get_date_for_user_grade_provider
* @param stdClass $grade
* @param stdClass $user
* @param int $expected
*/
public function test_grade_get_date_for_user_grade(stdClass $grade, stdClass $user, ?int $expected): void {
$this->assertEquals($expected, grade_get_date_for_user_grade($grade, $user));
}
/**
* Data provider for tests of the grade_get_date_for_user_grade function.
*
* @return array
*/
public function grade_get_date_for_user_grade_provider(): array {
$u1 = (object) [
'id' => 42,
];
$u2 = (object) [
'id' => 930,
];
$d1 = 1234567890;
$d2 = 9876543210;
$g1 = (object) [
'usermodified' => $u1->id,
'dategraded' => $d1,
'datesubmitted' => $d2,
];
$g2 = (object) [
'usermodified' => $u1->id,
'dategraded' => $d1,
'datesubmitted' => 0,
];
$g3 = (object) [
'usermodified' => $u1->id,
'dategraded' => null,
'datesubmitted' => $d2,
];
return [
'If the user is the last person to have modified the grade_item then show the date that it was graded' => [
$g1,
$u1,
$d1,
],
'If there is no grade and there is no feedback, then show graded date as null' => [
$g3,
$u1,
null,
],
'If the user is not the last person to have modified the grade_item, ' .
'and there is no submission date, then show the date that it was submitted' => [
$g1,
$u2,
$d2,
],
'If the user is not the last person to have modified the grade_item, ' .
'but there is no submission date, then show the date that it was graded' => [
$g2,
$u2,
$d1,
],
'If the user is the last person to have modified the grade_item, ' .
'and there is no submission date, then still show the date that it was graded' => [
$g2,
$u1,
$d1,
],
];
}
/**
* Test the caching of grade letters.
*/
public function test_get_grade_letters() {
$this->resetAfterTest();
// Setup some basics.
$course = $this->getDataGenerator()->create_course();
$context = context_course::instance($course->id);
$cache = cache::make('core', 'grade_letters');
$letters = $cache->get($context->id);
// Make sure the cache is empty.
$this->assertFalse($letters);
// Now check to see if the letters get cached.
$actual = grade_get_letters($context);
$expected = $cache->get($context->id);
$this->assertEquals($expected, $actual);
}
/**
* Test custom letters.
*/
public function test_get_grade_letters_custom() {
global $DB;
$this->resetAfterTest();
$course = $this->getDataGenerator()->create_course();
$context = context_course::instance($course->id);
$cache = cache::make('core', 'grade_letters');
$letters = $cache->get($context->id);
// Make sure the cache is empty.
$this->assertFalse($letters);
// Add a grade letter to the course.
$letter = new stdClass();
$letter->letter = 'M';
$letter->lowerboundary = '100';
$letter->contextid = $context->id;
$DB->insert_record('grade_letters', $letter);
$actual = grade_get_letters($context);
$expected = $cache->get($context->id);
$this->assertEquals($expected, $actual);
}
}