public function testCdate() { $this->assertEquals(Yii::$app->formatter->asDatetime('2010-03-01 13:00:00', 'php:c'), TimeHelper::cdate('2010-03-01 13:00:00')); $this->expectException(InvalidParamException::class); TimeHelper::cdate(null); TimeHelper::cdate('ds8das8bdsaj'); }