def testOrdInvFHWTForNumItersGivenNumFwdIters(signal, num_fwd_iters,
num_inv_iters):
if num_inv_iters > num_fwd_iters:
raise Exception('num_inv_iters > num_fwd_iters')
num_avail_iters = NumUtils.intLog2(len(signal))
if num_inv_iters > num_avail_iters:
raise Exception('num_inv_iters > num_avail_iters')
orig_signal = copy.deepcopy(signal)
sig_copy = copy.deepcopy(signal)
print('num_fwd_iters = %d' % num_fwd_iters)
print('num_inv_iters = %d' % num_inv_iters)
OneDHWT.ordFHWTForNumIters(signal, num_fwd_iters)
OneDHWT.ordFHWTForNumIters(sig_copy, num_fwd_iters - num_inv_iters)
OneDHWT.ordInvFHWTForNumItersGivenNumFwdIters(signal, num_fwd_iters,
num_inv_iters)
rslt = NumUtils.areEqualLists(signal, sig_copy)
print(signal)
print(sig_copy)
print('signal equality: %s' % str(rslt))
return rslt
