update tests accordingly

Author: tomvanmele

tests/compas/datastructures/test_graph.py

@@ -83,7 +83,7 @@ def test_graph_from_pointcloud():
     graph = Graph.from_pointcloud(cloud=cloud, degree=3)
     assert graph.number_of_nodes() == len(cloud)
     for node in graph.nodes():
-        assert graph.degree(node) >= 3
+        assert graph.degree(node) <= 3
 
 
 # ==============================================================================

tests/compas/geometry/test_polyhedron.py

@@ -12,6 +12,6 @@ def test_polyhedron():
     assert polyhedron.faces == faces
     assert polyhedron.name == name
     assert polyhedron.points == vertices
-    assert polyhedron.lines == [(a, b) for a, b in pairwise(vertices + vertices[:1])]
+    assert polyhedron.lines == [(a, b) for a, b in pairwise(vertices[-1:] + vertices)]
     assert polyhedron.points[0] == vertices[0]
     assert polyhedron.points[-1] != polyhedron.points[0]