Fix matfaust/pyfaust butterfly unit tests of DFT factorization (it needs the...

Fix matfaust/pyfaust butterfly unit tests of DFT factorization (it needs the perm='bitrev' argument now).

misc/test/src/Matlab/FaustFactoryTest.m

@@ -678,7 +678,11 @@ classdef FaustFactoryTest < matlab.unittest.TestCase
 				end
 				for i=1:3
 					type = types{i};
-					F = butterfly(M, 'type', type);
+                    args = {M, 'type', type};
+                    if ~ isreal(M)
+                        args = [args, {'perm', 'bitrev'}];
+                    end
+					F = butterfly(args{:});
 					this.verifyEqual(norm(full(F)-M)/norm(M), 0, 'AbsTol', 1e-6);
 				end
 			end

misc/test/src/Python/test_FaustPy.py

@@ -1996,7 +1996,7 @@ class TestFaustFactory(unittest.TestCase):
             self.assertAlmostEqual((FH-H).norm()/norm(H), 0)
         D = dft(64).toarray()
         for dir in ['right', 'left', 'bbtree']:
-            FD = butterfly(D, type=dir)
+            FD = butterfly(D, type=dir, perm='bitrev')
             self.assertAlmostEqual((FD-D).norm()/norm(D), 0)
 
     def test_palm4msa_mhtp(self):