def test_simple2(self):
# arrange
trees = [0, 3, 5, 5, 6, 9]
L = 10
W = 1
# act
res = planting_trees(trees, L, W)
# assert
self.assertEqual(res, 9.28538328578604)
def test_simple(self):
# arrange
trees = [0, 1, 10, 10]
L = 10
W = 1
# act
res = planting_trees(trees, L, W)
# assert
self.assertEqual(res, 2.414213562373095)