fixed test

this tests should ensure that each Orientation has exactly one symmetrically
equivalent representation. It was not fully correct before and works as expected
after 8fefc46f38

python/tests/test_Orientation.py

@@ -224,11 +224,11 @@ class TestOrientation:
 
     @pytest.mark.parametrize('family',crystal_families)
     def test_reduced_corner_cases(self,family):
-        # test whether there is always a sym-eq rotation that falls into the FZ
+        # test whether there is always exactly one sym-eq rotation that falls into the FZ
         N = np.random.randint(10,40)
         size = np.ones(3)*np.pi**(2./3.)
         grid = grid_filters.coordinates0_node([N+1,N+1,N+1],size,-size*.5)
-        evenly_distributed = Orientation.from_cubochoric(x=grid[:-2,:-2,:-2],family=family)
+        evenly_distributed = Orientation.from_cubochoric(x=grid,family=family)
         assert evenly_distributed.shape == evenly_distributed.reduced.shape
 
     @pytest.mark.parametrize('family',crystal_families)