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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 grade condition.
*
* @package availability_grade
* @copyright 2014 The Open University
* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
*/
defined('MOODLE_INTERNAL') || die();
use availability_grade\condition;
/**
* Unit tests for the grade condition.
*
* @package availability_grade
* @copyright 2014 The Open University
* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
*/
class availability_grade_condition_testcase extends advanced_testcase {
/**
* Tests constructing and using grade condition.
*/
public function test_usage() {
global $USER, $CFG;
require_once($CFG->dirroot . '/mod/assign/locallib.php');
$this->resetAfterTest();
$CFG->enableavailability = true;
// Make a test course and user.
$course = $this->getDataGenerator()->create_course();
$user = $this->getDataGenerator()->create_user();
$this->getDataGenerator()->enrol_user($user->id, $course->id);
// Make assign module.
$assignrow = $this->getDataGenerator()->create_module('assign', array(
'course' => $course->id, 'name' => 'Test!'));
$assign = new assign(context_module::instance($assignrow->cmid), false, false);
$modinfo = get_fast_modinfo($course);
$cm = $modinfo->get_cm($assignrow->cmid);
$info = new \core_availability\info_module($cm);
// Get the actual grade item.
$item = $assign->get_grade_item();
// Construct tree with grade condition (any grade, specified item).
$structure = (object)array('type' => 'grade', 'id' => (int)$item->id);
$cond = new condition($structure);
// Check if available (not available).
$this->assertFalse($cond->is_available(false, $info, true, $user->id));
$information = $cond->get_description(false, false, $info);
$this->assertRegExp('~have a grade.*Test!~', $information);
$this->assertTrue($cond->is_available(true, $info, true, $user->id));
// Add grade and check available.
self::set_grade($assignrow, $user->id, 37.2);
$this->assertTrue($cond->is_available(false, $info, true, $user->id));
$this->assertFalse($cond->is_available(true, $info, true, $user->id));
$information = $cond->get_description(false, true, $info);
$this->assertRegExp('~do not have a grade.*Test!~', $information);
// Construct directly and test remaining conditions; first, min grade (fail).
self::set_grade($assignrow, $user->id, 29.99999);
$structure->min = 30.0;
$cond = new condition($structure);
$this->assertFalse($cond->is_available(false, $info, true, $user->id));
$information = $cond->get_description(false, false, $info);
$this->assertRegExp('~achieve a required score.*Test!~', $information);
$this->assertTrue($cond->is_available(true, $info, true, $user->id));
// Min grade (success).
self::set_grade($assignrow, $user->id, 30);
$this->assertTrue($cond->is_available(false, $info, true, $user->id));
$this->assertFalse($cond->is_available(true, $info, true, $user->id));
$information = $cond->get_description(false, true, $info);
$this->assertRegExp('~do not get certain scores.*Test!~', $information);
// Max grade (fail).
unset($structure->min);
$structure->max = 30.0;
$cond = new condition($structure);
$this->assertFalse($cond->is_available(false, $info, true, $user->id));
$information = $cond->get_description(false, false, $info);
$this->assertRegExp('~get an appropriate score.*Test!~', $information);
$this->assertTrue($cond->is_available(true, $info, true, $user->id));
// Max grade (success).
self::set_grade($assignrow, $user->id, 29.99999);
$this->assertTrue($cond->is_available(false, $info, true, $user->id));
$this->assertFalse($cond->is_available(true, $info, true, $user->id));
$information = $cond->get_description(false, true, $info);
$this->assertRegExp('~do not get certain scores.*Test!~', $information);
// Max and min (fail).
$structure->min = 30.0;
$structure->max = 34.12345;
$cond = new condition($structure);
$this->assertFalse($cond->is_available(false, $info, true, $user->id));
$information = $cond->get_description(false, false, $info);
$this->assertRegExp('~get a particular score.*Test!~', $information);
$this->assertTrue($cond->is_available(true, $info, true, $user->id));
// Still fail (other end).
self::set_grade($assignrow, $user->id, 34.12345);
$this->assertFalse($cond->is_available(false, $info, true, $user->id));
// Success (top end).
self::set_grade($assignrow, $user->id, 34.12344);
$this->assertTrue($cond->is_available(false, $info, true, $user->id));
$this->assertFalse($cond->is_available(true, $info, true, $user->id));
$information = $cond->get_description(false, true, $info);
$this->assertRegExp('~do not get certain scores.*Test!~', $information);
// Success (bottom end).
self::set_grade($assignrow, $user->id, 30.0);
$this->assertTrue($cond->is_available(false, $info, true, $user->id));
$this->assertFalse($cond->is_available(true, $info, true, $user->id));
$information = $cond->get_description(false, true, $info);
$this->assertRegExp('~do not get certain scores.*Test!~', $information);
}
/**
* Tests the constructor including error conditions. Also tests the
* string conversion feature (intended for debugging only).
*/
public function test_constructor() {
// No parameters.
$structure = new stdClass();
try {
$cond = new condition($structure);
$this->fail();
} catch (coding_exception $e) {
$this->assertContains('Missing or invalid ->id', $e->getMessage());
}
// Invalid id (not int).
$structure->id = 'bourne';
try {
$cond = new condition($structure);
$this->fail();
} catch (coding_exception $e) {
$this->assertContains('Missing or invalid ->id', $e->getMessage());
}
// Invalid min (not number).
$structure->id = 42;
$structure->min = 'ute';
try {
$cond = new condition($structure);
$this->fail();
} catch (coding_exception $e) {
$this->assertContains('Missing or invalid ->min', $e->getMessage());
}
// Invalid max (not number).
$structure->min = 3.89;
$structure->max = '9000';
try {
$cond = new condition($structure);
$this->fail();
} catch (coding_exception $e) {
$this->assertContains('Missing or invalid ->max', $e->getMessage());
}
// All valid.
$structure->max = 4.0;
$cond = new condition($structure);
$this->assertEquals('{grade:#42 >= 3.89000, < 4.00000}', (string)$cond);
// No max.
unset($structure->max);
$cond = new condition($structure);
$this->assertEquals('{grade:#42 >= 3.89000}', (string)$cond);
// No min.
unset($structure->min);
$structure->max = 32.768;
$cond = new condition($structure);
$this->assertEquals('{grade:#42 < 32.76800}', (string)$cond);
// No nothing (only requires that grade exists).
unset($structure->max);
$cond = new condition($structure);
$this->assertEquals('{grade:#42}', (string)$cond);
}
/**
* Tests the save() function.
*/
public function test_save() {
$structure = (object)array('id' => 19);
$cond = new condition($structure);
$structure->type = 'grade';
$this->assertEquals($structure, $cond->save());
$structure = (object)array('id' => 19, 'min' => 4.12345, 'max' => 90);
$cond = new condition($structure);
$structure->type = 'grade';
$this->assertEquals($structure, $cond->save());
}
/**
* Updates the grade of a user in the given assign module instance.
*
* @param stdClass $assignrow Assignment row from database
* @param int $userid User id
* @param float $grade Grade
*/
protected static function set_grade($assignrow, $userid, $grade) {
$grades = array();
$grades[$userid] = (object)array(
'rawgrade' => $grade, 'userid' => $userid);
$assignrow->cmidnumber = null;
assign_grade_item_update($assignrow, $grades);
}
/**
* Tests the update_dependency_id() function.
*/
public function test_update_dependency_id() {
$cond = new condition((object)array('id' => 123));
$this->assertFalse($cond->update_dependency_id('frogs', 123, 456));
$this->assertFalse($cond->update_dependency_id('grade_items', 12, 34));
$this->assertTrue($cond->update_dependency_id('grade_items', 123, 456));
$after = $cond->save();
$this->assertEquals(456, $after->id);
}
}