public function test_isEnabled()
{
$updateCommunication = new UpdateCommunication();
$this->assertTrue($updateCommunication->isEnabled());
Config::getInstance()->General['enable_update_communication'] = 0;
$this->assertFalse($updateCommunication->isEnabled());
Config::getInstance()->General['enable_update_communication'] = 1;
$this->assertTrue($updateCommunication->isEnabled());
}