fix(face): Ensure Face3Ds with 3 vertices still get checked for colinear

Author: chriswmackey

ladybug_geometry/geometry3d/face.py

@@ -778,6 +778,10 @@ def remove_colinear_vertices(self, tolerance):
                 at which point the vertex is considered colinear.
         """
         if len(self.vertices) == 3:
+            valid_pts = [pt for i, pt in enumerate(self.vertices)
+                         if not pt.is_equivalent(self.vertices[i - 1], tolerance)]
+            assert len(valid_pts) == 3, 'There must be at least 3 vertices for ' \
+                'a Face3D. Got {}'.format(len(valid_pts))
             return self
         if not self.has_holes:  # we only need to evaluate one list of vertices
             new_vertices = self._remove_colinear(