def test_clocks_unequal():
"""Test clocks_unequal function used in LRB paper."""
point_1 = Point(1.0, 1.0)
point_2 = Point(0.0, 0.0)
assert point_1.clocks_unequal(point_2)
point_1 = Point(1.0, 1.0, 1.0, 1.0)
point_2 = Point(0.0, 0.0, 0.0, 0.0)
assert point_1.clocks_unequal(point_2)
point_1 = Point(0.0, 1.000000000000001)
point_2 = Point(0.0, 0.000000000000001)
assert point_1.clocks_unequal(point_2)
