more tests

src/compas/datastructures/volmesh/volmesh.py

@@ -1023,6 +1023,11 @@ def delete_cell(self, cell):
         -------
         None
 
+        Raises
+        ------
+        KeyError
+            If the cell does not exist.
+
         See Also
         --------
         :meth:`delete_vertex`, :meth:`delete_halfface`

tests/compas/datastructures/test_volmesh.py

@@ -245,8 +245,66 @@ def test_cells_where_predicate():
 # Methods
 # ==============================================================================
 
-def test_delete_cell():
-    hf = VolMesh.from_meshgrid(10, 10, 10, 5, 5, 5)
-    assert hf.number_of_cells() == 125
-    hf.delete_cell(1)
-    assert hf.number_of_cells() == 124
+
+def test_delete_cell_of_volmesh_with_1_1_1():
+    volmesh = VolMesh.from_meshgrid(1, 1, 1, 1, 1, 1)
+    nov = volmesh.number_of_vertices()
+    noe = volmesh.number_of_edges()
+    nof = volmesh.number_of_faces()
+    noc = volmesh.number_of_cells()
+
+    volmesh.delete_cell(0)
+
+    assert volmesh.number_of_vertices() == nov
+    assert volmesh.number_of_cells() == noc - 1
+    assert volmesh.number_of_edges() == noe - 12
+    assert volmesh.number_of_faces() == nof - 6
+
+
+@pytest.mark.parametrize(
+    "c",
+    [0, 1],
+)
+def test_delete_cell_of_volmesh_with_2_1_1(c):
+    volmesh = VolMesh.from_meshgrid(1, 1, 1, 2, 1, 1)
+    nov = volmesh.number_of_vertices()
+    noe = volmesh.number_of_edges()
+    nof = volmesh.number_of_faces()
+    noc = volmesh.number_of_cells()
+
+    volmesh.delete_cell(c)
+
+    assert volmesh.number_of_vertices() == nov
+    assert volmesh.number_of_cells() == noc - 1
+    assert volmesh.number_of_edges() == noe - 8
+    assert volmesh.number_of_faces() == nof - 5
+
+
+@pytest.mark.parametrize(
+    "c",
+    [0, 1, 2],
+)
+def test_delete_cell_of_volmesh_with_3_1_1(c):
+    volmesh = VolMesh.from_meshgrid(1, 1, 1, 3, 1, 1)
+    nov = volmesh.number_of_vertices()
+    noe = volmesh.number_of_edges()
+    nof = volmesh.number_of_faces()
+    noc = volmesh.number_of_cells()
+
+    volmesh.delete_cell(c)
+
+    if c == 0:
+        assert volmesh.number_of_vertices() == nov
+        assert volmesh.number_of_cells() == noc - 1
+        assert volmesh.number_of_edges() == noe - 8
+        assert volmesh.number_of_faces() == nof - 5
+    elif c == 1:
+        assert volmesh.number_of_vertices() == nov
+        assert volmesh.number_of_cells() == noc - 1
+        assert volmesh.number_of_edges() == noe - 4
+        assert volmesh.number_of_faces() == nof - 4
+    elif c == 2:
+        assert volmesh.number_of_vertices() == nov
+        assert volmesh.number_of_cells() == noc - 1
+        assert volmesh.number_of_edges() == noe - 8
+        assert volmesh.number_of_faces() == nof - 5