def test_2dtriangle(self):
s = Simplex([[0, 1], [1, 1], [1, 0]])
self.assertArrayAlmostEqual(s.bary_coords([0.5, 0.5]),
[0.5, 0, 0.5])
self.assertArrayAlmostEqual(s.bary_coords([0.5, 1]), [0.5, 0.5, 0])
self.assertArrayAlmostEqual(s.bary_coords([0.5, 0.75]), [0.5, 0.25, 0.25])
self.assertArrayAlmostEqual(s.bary_coords([0.75, 0.75]), [0.25, 0.5, 0.25])
s = Simplex([[1, 1], [1, 0]])
self.assertRaises(ValueError, s.bary_coords, [0.5, 0.5])
