'Tests one combination of chunk size and number of chunks.
@param chunkSize: The size of one chunk to be sent to the
C{NetstringReceiver}.
@type chunkSize: C{int}
@param numberOfChunks: The number of C{chunkSize}-sized chunks to
be sent to the C{NetstringReceiver}.
@type numberOfChunks: C{int}'

def testCombination(self, chunkSize, numberOfChunks):

    (chunk, dataSize) = self.configureCombination(chunkSize, numberOfChunks)
    elapsed = self.receiveData(chunk, numberOfChunks, dataSize)
    key = (chunkSize, numberOfChunks, dataSize)
    self.performanceData[key] = elapsed
