private String getHostUrlWithTs(Client client) {
    return getHostUrl(client) + " (" + timestamp() + ")";
  }
Constructs a new MatrixRunner with the given TestConfig and List<Tuple>.

@param testConfig TestConfig
@param listOfTuples a list of tuples (containing 1 or multiples kite config objects).
@param parentSuiteName the parent suite name
KITE-Engine/src/main/java/org/webrtc/kite/MatrixRunner.java