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namespace core_analytics;
/**
* Unit tests for the analysis class.
*
* @package core_analytics
* @copyright 2019 David Monllaó {@link http://www.davidmonllao.com}
* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
*/
class analysis_test extends \advanced_testcase {
/**
* Test fill_firstanalyses_cache.
* @return null
*/
public function test_fill_firstanalyses_cache() {
require_once(__DIR__ . '/fixtures/test_timesplitting_upcoming_seconds.php');
$this->resetAfterTest();
$modelid = 1;
$params = ['startdate' => (new \DateTimeImmutable('-5 seconds'))->getTimestamp()];
$course1 = $this->getDataGenerator()->create_course($params);
$course2 = $this->getDataGenerator()->create_course($params);
$analysable1 = new \core_analytics\course($course1);
$afewsecsago = time() - 5;
$earliest = $afewsecsago - 1;
$this->insert_used($modelid, $course1->id, 'training', $afewsecsago);
// Course2 processed after course1.
$this->insert_used($modelid, $course2->id, 'training', $afewsecsago + 1);
// After the first process involving course1.
$this->insert_used($modelid, $course1->id, 'prediction', $afewsecsago + 5);
$firstanalyses = \core_analytics\analysis::fill_firstanalyses_cache($modelid);
$this->assertCount(2, $firstanalyses);
$this->assertEquals($afewsecsago, $firstanalyses[$modelid . '_' . $course1->id]);
$this->assertEquals($afewsecsago + 1, $firstanalyses[$modelid . '_' . $course2->id]);
// The cached elements get refreshed.
$this->insert_used($modelid, $course1->id, 'prediction', $earliest);
$firstanalyses = \core_analytics\analysis::fill_firstanalyses_cache($modelid, $course1->id);
$this->assertCount(1, $firstanalyses);
$this->assertEquals($earliest, $firstanalyses[$modelid . '_' . $course1->id]);
// Upcoming periodic time-splitting methods can read and process the cached data.
$seconds = new \test_timesplitting_upcoming_seconds();
$seconds->set_modelid($modelid);
$seconds->set_analysable($analysable1);
// The generated ranges should start from the cached firstanalysis value, which is $earliest.
$ranges = $seconds->get_all_ranges();
$this->assertGreaterThanOrEqual(7, count($ranges));
$firstrange = reset($ranges);
$this->assertEquals($earliest, $firstrange['time']);
}
private function insert_used($modelid, $analysableid, $action, $timestamp) {
global $DB;
$obj = new \stdClass();
$obj->modelid = $modelid;
$obj->action = $action;
$obj->analysableid = $analysableid;
$obj->firstanalysis = $timestamp;
$obj->timeanalysed = $timestamp;
$obj->id = $DB->insert_record('analytics_used_analysables', $obj);
}
}