tests

test.py

@@ -0,0 +1,30 @@
+#!/usr/bin/env python
+
+
+from folds import *
+
+v1 = Vertex(0, 0, 0)
+v2 = Vertex(0, 1, 0)
+
+
+assert quadrance(v1, v2) == 1
+
+
+e1 = Edge(v1, v2)
+
+assert e1.quadrance() == 1
+
+
+v3 = Vertex(0, 2, 0)
+v4 = Vertex(1, 0, 0)
+
+assert collinear(v1, v2, v3) == True
+assert collinear(v1, v2, v4) == False
+
+
+v5 = Vertex(1, 2, 0)
+v6 = Vertex(2, 0, 0)
+
+e2 = (v1, v6)
+
+assert foot_of_altitude(v5, e2) == v4