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 core_analytics;

/**

 * Unit tests for the dataset manager.

 *

 * @package   core_analytics

 * @copyright 2017 David Monllaó {@link http://www.davidmonllao.com}

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

 */

final class dataset_manager_test extends \advanced_testcase {

    /** @var array Store dataset top rows. */

    protected array $sharedtoprows = [];

    /**

     * setUp

     *

     * @return null

     */

    public function setUp(): void {

        parent::setUp();

        $this->resetAfterTest(true);

        $this->sharedtoprows = array(

            array('var1', 'var2'),

            array('value1', 'value2'),

            array('header1', 'header2')

        );

    }

    /**

     * test_create_dataset

     *

     * @return null

     */

    public function test_create_dataset(): void {

        $dataset1 = new \core_analytics\dataset_manager(1, 1, 'whatever', \core_analytics\dataset_manager::LABELLED_FILEAREA, false);

        $dataset1data = array_merge($this->sharedtoprows, array(array('yeah', 'yeah', 'yeah')));

        $f1 = $dataset1->store($dataset1data);

        $f1contents = $f1->get_content();

        $this->assertStringContainsString('yeah', $f1contents);

        $this->assertStringContainsString('var1', $f1contents);

        $this->assertStringContainsString('value1', $f1contents);

        $this->assertStringContainsString('header1', $f1contents);

    }

    /**

     * test_merge_datasets

     *

     * @return null

     */

    public function test_merge_datasets(): void {

        $dataset1 = new \core_analytics\dataset_manager(1, 1, 'whatever', \core_analytics\dataset_manager::LABELLED_FILEAREA, false);

        $dataset1data = array_merge($this->sharedtoprows, array(array('yeah', 'yeah', 'yeah')));

        $f1 = $dataset1->store($dataset1data);

        $dataset2 = new \core_analytics\dataset_manager(1, 2, 'whatever', \core_analytics\dataset_manager::LABELLED_FILEAREA, false);

        $dataset2data = array_merge($this->sharedtoprows, array(array('no', 'no', 'no')));

        $f2 = $dataset2->store($dataset2data);

        $files = array($f1, $f2);

        $merged = \core_analytics\dataset_manager::merge_datasets($files, 1, 'whatever',

            \core_analytics\dataset_manager::LABELLED_FILEAREA);

        $mergedfilecontents = $merged->get_content();

        $this->assertStringContainsString('yeah', $mergedfilecontents);

        $this->assertStringContainsString('no', $mergedfilecontents);

        $this->assertStringContainsString('var1', $mergedfilecontents);

        $this->assertStringContainsString('value1', $mergedfilecontents);

        $this->assertStringContainsString('header1', $mergedfilecontents);

    }

    /**

     * test_get_pending_files

     *

     * @return null

     */

    public function test_get_pending_files(): void {

        global $DB;

        $this->resetAfterTest();

        $fakemodelid = 123;

        $timesplittingids = array(

            '\core\analytics\time_splitting\quarters',

            '\core\analytics\time_splitting\quarters_accum',

        );

        // No files.

        $this->assertEmpty(\core_analytics\dataset_manager::get_pending_files($fakemodelid, true, $timesplittingids));

        $this->assertEmpty(\core_analytics\dataset_manager::get_pending_files($fakemodelid, false, $timesplittingids));

        // We will reuse this analysable file to create training and prediction datasets (analysable level files are

        // merged into training and prediction files).

        $analysabledataset = new \core_analytics\dataset_manager($fakemodelid, 1, 'whatever',

            \core_analytics\dataset_manager::LABELLED_FILEAREA, false);

        $analysabledatasetdata = array_merge($this->sharedtoprows, array(array('yeah', 'yeah', 'yeah')));

        $file = $analysabledataset->store($analysabledatasetdata);

        // Evaluation files ignored.

        $evaluationdataset = \core_analytics\dataset_manager::merge_datasets(array($file), $fakemodelid,

            '\core\analytics\time_splitting\quarters', \core_analytics\dataset_manager::LABELLED_FILEAREA, true);

        $this->assertEmpty(\core_analytics\dataset_manager::get_pending_files($fakemodelid, true, $timesplittingids));

        $this->assertEmpty(\core_analytics\dataset_manager::get_pending_files($fakemodelid, false, $timesplittingids));

        // Training and prediction files are not mixed up.

        $trainingfile1 = \core_analytics\dataset_manager::merge_datasets(array($file), $fakemodelid,

            '\core\analytics\time_splitting\quarters', \core_analytics\dataset_manager::LABELLED_FILEAREA, false);

        $this->waitForSecond();

        $trainingfile2 = \core_analytics\dataset_manager::merge_datasets(array($file), $fakemodelid,

            '\core\analytics\time_splitting\quarters', \core_analytics\dataset_manager::LABELLED_FILEAREA, false);

        $bytimesplitting = \core_analytics\dataset_manager::get_pending_files($fakemodelid, true, $timesplittingids);

        $this->assertFalse(isset($bytimesplitting['\core\analytics\time_splitting\quarters_accum']));

        $this->assertCount(2, $bytimesplitting['\core\analytics\time_splitting\quarters']);

        $this->assertEmpty(\core_analytics\dataset_manager::get_pending_files($fakemodelid, false, $timesplittingids));

        $predictionfile = \core_analytics\dataset_manager::merge_datasets(array($file), $fakemodelid,

            '\core\analytics\time_splitting\quarters', \core_analytics\dataset_manager::UNLABELLED_FILEAREA, false);

        $bytimesplitting = \core_analytics\dataset_manager::get_pending_files($fakemodelid, false, $timesplittingids);

        $this->assertFalse(isset($bytimesplitting['\core\analytics\time_splitting\quarters_accum']));

        $this->assertCount(1, $bytimesplitting['\core\analytics\time_splitting\quarters']);

        // Already used for training and prediction are discarded.

        $usedfile = (object)['modelid' => $fakemodelid, 'fileid' => $trainingfile1->get_id(), 'action' => 'trained',

            'time' => time()];

        $DB->insert_record('analytics_used_files', $usedfile);

        $bytimesplitting = \core_analytics\dataset_manager::get_pending_files($fakemodelid, true, $timesplittingids);

        $this->assertCount(1, $bytimesplitting['\core\analytics\time_splitting\quarters']);

        $usedfile->fileid = $predictionfile->get_id();

        $usedfile->action = 'predicted';

        $DB->insert_record('analytics_used_files', $usedfile);

        $this->assertEmpty(\core_analytics\dataset_manager::get_pending_files($fakemodelid, false, $timesplittingids));

    }

}