def testOrdInvFHWT(signal):
n = NumUtils.intLog2(len(signal))
orig_signal = copy.deepcopy(signal)
print('n = %d' % n)
print('signal: %s' % str(signal))
OneDHWT.ordFHWT(signal)
print('OneDHWT: %s' % str(signal))
OneDHWT.ordInvFHWT(signal)
print('OneInvDHWT: %s' % str(signal))
rslt = NumUtils.areEqualLists(signal, orig_signal)
print('signal equality: %s' % str(rslt))
return rslt
