def test_merge_overlaping_segments(self):
'It test the segment merging'
coord = CoordSystem(relations=[])
limits = [(0, 2)]
expected = [(0, 2)]
assert coord._merge_overlaping_segments(limits) == expected
limits = [(0, 2), (4, 6)]
expected = [(0, 2), (4, 6)]
assert coord._merge_overlaping_segments(limits) == expected
limits = [(0, 2), (4, 6), (0, 8)]
expected = [(0, 8)]
assert coord._merge_overlaping_segments(limits) == expected
