def test_is_on():
"""Test is_on function used in LRB paper."""
point = Point(1.0)
start_point = Point(0.0)
end_point = Point(3.0)
assert point.is_on(start_point, end_point)
assert point.is_on(end_point, start_point)
point = Point(1.0, 1.0)
start_point = Point(0.0, 0.0)
end_point = Point(3.0, 3.0)
assert point.is_on(start_point, end_point)
assert point.is_on(end_point, start_point)
point = Point(1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0)
start_point = Point(0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0)
end_point = Point(3.0, 3.0, 3.0, 3.0, 3.0, 3.0, 3.0, 3.0, 3.0, 3.0)
assert point.is_on(start_point, end_point)
assert point.is_on(end_point, start_point)
point = Point(1.000000000000001)
start_point = Point(0.000000000000001)
end_point = Point(3.000000000000001)
assert point.is_on(start_point, end_point)
assert point.is_on(end_point, start_point)
