diff --git a/python/tests/test_Table.py b/python/tests/test_Table.py
index cfcdd8813..ac7444808 100644
--- a/python/tests/test_Table.py
+++ b/python/tests/test_Table.py
@@ -18,7 +18,7 @@ def reference_dir(reference_dir_base):
     return os.path.join(reference_dir_base,'Table')
 
 class TestTable:
-    
+
     def test_get_scalar(self,default):
         d = default.get('s')
         assert np.allclose(d,1.0) and d.shape[1:] == (1,)
@@ -29,12 +29,12 @@ class TestTable:
 
     def test_get_tensor(self,default):
         d = default.get('F')
-        assert np.allclose(d,1.0) and d.shape[1:] == (3,3) 
+        assert np.allclose(d,1.0) and d.shape[1:] == (3,3)
 
     def test_get_component(self,default):
         d = default.get('5_F')
         assert np.allclose(d,1.0) and d.shape[1:] == (1,)
-  
+
     def test_write_read_str(self,default,tmpdir):
         default.to_ASCII(str(tmpdir.join('default.txt')))
         new = Table.from_ASCII(str(tmpdir.join('default.txt')))
@@ -69,15 +69,20 @@ class TestTable:
     def test_read_strange(self,reference_dir,fname):
         with open(os.path.join(reference_dir,fname)) as f:
             Table.from_ASCII(f)
-    
+
     def test_set(self,default):
         default.set('F',np.zeros((5,3,3)),'set to zero')
         d=default.get('F')
         assert np.allclose(d,0.0) and d.shape[1:] == (3,3)
 
+    def test_set_component(self,default):
+        default.set('1_F',np.zeros((5)),'set to zero')
+        d=default.get('F')
+        assert np.allclose(d[...,0,0],0.0) and d.shape[1:] == (3,3)
+
     def test_labels(self,default):
         assert default.labels == ['F','v','s']
-        
+
     def test_add(self,default):
         d = np.random.random((5,9))
         default.add('nine',d,'random data')
diff --git a/python/tests/test_grid_filters.py b/python/tests/test_grid_filters.py
index ab60c0446..8a343e26b 100644
--- a/python/tests/test_grid_filters.py
+++ b/python/tests/test_grid_filters.py
@@ -42,12 +42,25 @@ class TestGridFilters:
          assert np.allclose(grid_filters.node_displacement_fluct(size,F),
                             grid_filters.cell_2_node(grid_filters.cell_displacement_fluct(size,F)))
 
-    def test_interpolation_nonperiodic(self):
+    def test_interpolation_to_node(self):
          size = np.random.random(3)
          grid = np.random.randint(8,32,(3))
          F    = np.random.random(tuple(grid)+(3,3))
-         assert np.allclose(grid_filters.node_coord(size,F) [1:-1,1:-1,1:-1],grid_filters.cell_2_node(
-                            grid_filters.cell_coord(size,F))[1:-1,1:-1,1:-1])
+         assert np.allclose(grid_filters.node_coord(size,F) [1:-1,1:-1,1:-1],
+                            grid_filters.cell_2_node(grid_filters.cell_coord(size,F))[1:-1,1:-1,1:-1])
+
+    def test_interpolation_to_cell(self):
+         grid = np.random.randint(1,30,(3))
+
+         node_coord_x = np.linspace(0,np.pi*2,num=grid[0]+1)
+         node_field_x = np.cos(node_coord_x)
+         node_field   = np.broadcast_to(node_field_x.reshape(-1,1,1),grid+1)
+
+         cell_coord_x = node_coord_x[:-1]+node_coord_x[1]*.5
+         cell_field_x = np.interp(cell_coord_x,node_coord_x,node_field_x,period=np.pi*2.)
+         cell_field   = np.broadcast_to(cell_field_x.reshape(-1,1,1),grid)
+
+         assert np.allclose(cell_field,grid_filters.node_2_cell(node_field))
 
     @pytest.mark.parametrize('mode',['cell','node'])
     def test_coord0_origin(self,mode):