'L{ftp.DTP.sendLine} writes the line passed to it plus a line delimiter
to its transport.'

def test_sendLineNewline(self):

    dtpInstance = self.factory.buildProtocol(None)
    dtpInstance.makeConnection(self.transport)
    lineContent = 'line    content'
    dtpInstance.sendLine(lineContent)
    dataSent = self.transport.value()
    self.assertEqual((lineContent + '\r\n'), dataSent)
