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.

//

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// 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 Accumulative grading strategy logic

 *

 * @package    workshopform_accumulative

 * @category   test

 * @copyright  2009 David Mudrak <david.mudrak@gmail.com>

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

 */

namespace workshopform_accumulative;

use workshop;

use workshop_accumulative_strategy;

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

// Include the code to test

global $CFG;

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

require_once($CFG->dirroot . '/mod/workshop/form/accumulative/lib.php');

/**

 * Unit tests for Accumulative grading strategy lib.php

 */

class lib_test extends \advanced_testcase {

    /** workshop instance emulation */

    protected $workshop;

    /** @var testable_workshop_accumulative_strategy instance of the strategy logic class being tested */

    protected $strategy;

    /**

     * Setup testing environment

     */

    protected function setUp(): void {

        parent::setUp();

        $this->resetAfterTest();

        $this->setAdminUser();

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

        $workshop = $this->getDataGenerator()->create_module('workshop', array('strategy' => 'accumulative', 'course' => $course));

        $cm = get_fast_modinfo($course)->instances['workshop'][$workshop->id];

        $this->workshop = new workshop($workshop, $cm, $course);

        $this->strategy = new testable_workshop_accumulative_strategy($this->workshop);

    }

    protected function tearDown(): void {

        $this->workshop = null;

        $this->strategy = null;

        parent::tearDown();

    }

    public function test_calculate_peer_grade_null_grade(): void {

        // fixture set-up

        $this->strategy->dimensions = array();

        $grades = array();

        // exercise SUT

        $suggested = $this->strategy->calculate_peer_grade($grades);

        // validate

        $this->assertNull($suggested);

    }

    public function test_calculate_peer_grade_one_numerical(): void {

        // fixture set-up

        $this->strategy->dimensions[1003] = (object)array('grade' => '20', 'weight' => '1');

        $grades[] = (object)array('dimensionid' => 1003, 'grade' => '5.00000');

        // exercise SUT

        $suggested = $this->strategy->calculate_peer_grade($grades);

        // validate

        $this->assertEquals(grade_floatval(5/20 * 100), $suggested);

    }

    public function test_calculate_peer_grade_negative_weight(): void {

        // fixture set-up

        $this->strategy->dimensions[1003] = (object)array('grade' => '20', 'weight' => '-1');

        $grades[] = (object)array('dimensionid' => 1003, 'grade' => '20');

        // exercise SUT

        $this->expectException(\coding_exception::class);

        $suggested = $this->strategy->calculate_peer_grade($grades);

    }

    public function test_calculate_peer_grade_one_numerical_weighted(): void {

        // fixture set-up

        $this->strategy->dimensions[1003] = (object)array('grade' => '20', 'weight' => '3');

        $grades[] = (object)array('dimensionid' => '1003', 'grade' => '5');

        // exercise SUT

        $suggested = $this->strategy->calculate_peer_grade($grades);

        // validate

        $this->assertEquals(grade_floatval(5/20 * 100), $suggested);

    }

    public function test_calculate_peer_grade_three_numericals_same_weight(): void {

        // fixture set-up

        $this->strategy->dimensions[1003] = (object)array('grade' => '20', 'weight' => '2');

        $this->strategy->dimensions[1004] = (object)array('grade' => '100', 'weight' => '2');

        $this->strategy->dimensions[1005] = (object)array('grade' => '10', 'weight' => '2');

        $grades[] = (object)array('dimensionid' => 1003, 'grade' => '11.00000');

        $grades[] = (object)array('dimensionid' => 1004, 'grade' => '87.00000');

        $grades[] = (object)array('dimensionid' => 1005, 'grade' => '10.00000');

        // exercise SUT

        $suggested = $this->strategy->calculate_peer_grade($grades);

        // validate

        $this->assertEquals(grade_floatval((11/20 + 87/100 + 10/10)/3 * 100), $suggested);

    }

    public function test_calculate_peer_grade_three_numericals_different_weights(): void {

        // fixture set-up

        $this->strategy->dimensions[1003] = (object)array('grade' => '15', 'weight' => 3);

        $this->strategy->dimensions[1004] = (object)array('grade' => '80', 'weight' => 1);

        $this->strategy->dimensions[1005] = (object)array('grade' => '5', 'weight' => 2);

        $grades[] = (object)array('dimensionid' => 1003, 'grade' => '7.00000');

        $grades[] = (object)array('dimensionid' => 1004, 'grade' => '66.00000');

        $grades[] = (object)array('dimensionid' => 1005, 'grade' => '4.00000');

        // exercise SUT

        $suggested = $this->strategy->calculate_peer_grade($grades);

        // validate

        $this->assertEquals(grade_floatval((7/15*3 + 66/80*1 + 4/5*2)/6 * 100), $suggested);

    }

    public function test_calculate_peer_grade_one_scale_max(): void {

        $this->resetAfterTest(true);

        // fixture set-up

        $scale11 = $this->getDataGenerator()->create_scale(array('scale'=>'E,D,C,B,A', 'id'=>11));

        $this->strategy->dimensions[1008] = (object)array('grade' => (-$scale11->id), 'weight' => 1);

        $grades[] = (object)array('dimensionid' => 1008, 'grade' => '5.00000');

        // exercise SUT

        $suggested = $this->strategy->calculate_peer_grade($grades);

        // validate

        $this->assertEquals(100.00000, $suggested);

    }

    public function test_calculate_peer_grade_one_scale_min_with_scale_caching(): void {

        $this->resetAfterTest(true);

        // fixture set-up

        $scale11 = $this->getDataGenerator()->create_scale(array('scale'=>'E,D,C,B,A', 'id'=>11));

        $this->strategy->dimensions[1008] = (object)array('grade' => (-$scale11->id), 'weight' => 1);

        $grades[] = (object)array('dimensionid' => 1008, 'grade' => '1.00000');

        // exercise SUT

        $suggested = $this->strategy->calculate_peer_grade($grades);

        // validate

        $this->assertEquals(0.00000, $suggested);

    }

    public function test_calculate_peer_grade_two_scales_weighted(): void {

        $this->resetAfterTest(true);

        // fixture set-up

        $scale13 = $this->getDataGenerator()->create_scale(array('scale'=>'Poor,Good,Excellent', 'id'=>13));

        $scale17 = $this->getDataGenerator()->create_scale(array('scale'=>'-,*,**,***,****,*****,******', 'id'=>17));

        $this->strategy->dimensions[1012] = (object)array('grade' => (-$scale13->id), 'weight' => 2);

        $this->strategy->dimensions[1019] = (object)array('grade' => (-$scale17->id), 'weight' => 3);

        $grades[] = (object)array('dimensionid' => 1012, 'grade' => '2.00000'); // "Good"

        $grades[] = (object)array('dimensionid' => 1019, 'grade' => '5.00000'); // "****"

        // exercise SUT

        $suggested = $this->strategy->calculate_peer_grade($grades);

        // validate

        $this->assertEquals(grade_floatval((1/2*2 + 4/6*3)/5 * 100), $suggested);

    }

    public function test_calculate_peer_grade_scale_exception(): void {

        $this->resetAfterTest(true);

        // fixture set-up

        $scale13 = $this->getDataGenerator()->create_scale(array('scale'=>'Poor,Good,Excellent', 'id'=>13));

        $this->strategy->dimensions[1012] = (object)array('grade' => (-$scale13->id), 'weight' => 1);

        $grades[] = (object)array('dimensionid' => 1012, 'grade' => '4.00000'); // exceeds the number of scale items

        // Exercise SUT.

        $this->expectException(\coding_exception::class);

        $suggested = $this->strategy->calculate_peer_grade($grades);

    }

}

/**

 * Test subclass that makes all the protected methods we want to test public

 */

class testable_workshop_accumulative_strategy extends workshop_accumulative_strategy {

    /** allows to set dimensions manually */

    public $dimensions = array();

    /**

     * This is where the calculation of suggested grade for submission is done

     */

    public function calculate_peer_grade(array $grades) {

        return parent::calculate_peer_grade($grades);

    }

}