mockApplication([ 'components' => [ 'redis' => $params, 'session' => 'dcb9\\redis\\Session', ] ]); $sessionId = 'sessionId'; $session = Yii::$app->session; $session->setTimeout(1); $sessionData = json_encode([ 'sessionId' => $sessionId, 'username' => 'bob', ]); $session->writeSession($sessionId, $sessionData); $this->assertEquals($sessionData, $session->readSession($sessionId)); $this->assertTrue($session->destroySession($sessionId)); $this->assertEquals('', $session->readSession($sessionId)); } }