Skip the test if no test database connection available.

Source

						public function skip() {
		$connection = 'lithium_couch_test';
		$config = Connections::get($connection, array('config' => true));
		$isAvailable = (
			$config &&
			Connections::get($connection)->isConnected(array('autoConnect' => true))
		);
		$this->skipIf(!$isAvailable, "No {$connection} connection available.");

		Companies::config();
		$this->_key = Companies::key();
		$this->_database = $config['database'];
		$this->_connection = Connections::get($connection);
	}