def test_single_linkage_individual(self):
points = np.array([[1.0, 5.0], [3.0, 5.0], [5.0, 5.0], [7.0, 0.0], [9.0, 0.0]])
result = single_linkage(points, 0.2)
desired = np.array([0,1,2,3,4])
np.testing.assert_array_equal(result, desired)
def test_single_linkage_three(self):
points = np.array([[1.0, 5.0], [2.0, 5.0], [5.0, 5.0], [8.0, 0.0], [9.0, 0.0]])
result = single_linkage(points, 0.2)
desired = np.array([0,0,1,2,2])
np.testing.assert_array_equal(result, desired)