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from rpython.rlib.rbisect import bisect_left, bisect_right
def test_bisect_left():
cases = [
([], 1, 0),
([1], 0, 0),
([1], 1, 0),
([1], 2, 1),
([1, 1], 0, 0),
([1, 1], 1, 0),
([1, 1], 2, 2),
([1, 1, 1], 0, 0),
([1, 1, 1], 1, 0),
([1, 1, 1], 2, 3),
([1, 1, 1, 1], 0, 0),
([1, 1, 1, 1], 1, 0),
([1, 1, 1, 1], 2, 4),
([1, 2], 0, 0),
([1, 2], 1, 0),
([1, 2], 1.5, 1),
([1, 2], 2, 1),
([1, 2], 3, 2),
([1, 1, 2, 2], 0, 0),
([1, 1, 2, 2], 1, 0),
([1, 1, 2, 2], 1.5, 2),
([1, 1, 2, 2], 2, 2),
([1, 1, 2, 2], 3, 4),
([1, 2, 3], 0, 0),
([1, 2, 3], 1, 0),
([1, 2, 3], 1.5, 1),
([1, 2, 3], 2, 1),
([1, 2, 3], 2.5, 2),
([1, 2, 3], 3, 2),
([1, 2, 3], 4, 3),
([1, 2, 2, 3, 3, 3, 4, 4, 4, 4], 0, 0),
([1, 2, 2, 3, 3, 3, 4, 4, 4, 4], 1, 0),
([1, 2, 2, 3, 3, 3, 4, 4, 4, 4], 1.5, 1),
([1, 2, 2, 3, 3, 3, 4, 4, 4, 4], 2, 1),
([1, 2, 2, 3, 3, 3, 4, 4, 4, 4], 2.5, 3),
([1, 2, 2, 3, 3, 3, 4, 4, 4, 4], 3, 3),
([1, 2, 2, 3, 3, 3, 4, 4, 4, 4], 3.5, 6),
([1, 2, 2, 3, 3, 3, 4, 4, 4, 4], 4, 6),
([1, 2, 2, 3, 3, 3, 4, 4, 4, 4], 5, 10),
]
for lst, elem, exp in cases:
assert bisect_left(lst, elem, len(lst)) == exp
def test_bisect_right():
cases = [
([], 1, 0),
([1], 0, 0),
([1], 1, 1),
([1], 2, 1),
([1, 1], 0, 0),
([1, 1], 1, 2),
([1, 1], 2, 2),
([1, 1, 1], 0, 0),
([1, 1, 1], 1, 3),
([1, 1, 1], 2, 3),
([1, 1, 1, 1], 0, 0),
([1, 1, 1, 1], 1, 4),
([1, 1, 1, 1], 2, 4),
([1, 2], 0, 0),
([1, 2], 1, 1),
([1, 2], 1.5, 1),
([1, 2], 2, 2),
([1, 2], 3, 2),
([1, 1, 2, 2], 0, 0),
([1, 1, 2, 2], 1, 2),
([1, 1, 2, 2], 1.5, 2),
([1, 1, 2, 2], 2, 4),
([1, 1, 2, 2], 3, 4),
([1, 2, 3], 0, 0),
([1, 2, 3], 1, 1),
([1, 2, 3], 1.5, 1),
([1, 2, 3], 2, 2),
([1, 2, 3], 2.5, 2),
([1, 2, 3], 3, 3),
([1, 2, 3], 4, 3),
([1, 2, 2, 3, 3, 3, 4, 4, 4, 4], 0, 0),
([1, 2, 2, 3, 3, 3, 4, 4, 4, 4], 1, 1),
([1, 2, 2, 3, 3, 3, 4, 4, 4, 4], 1.5, 1),
([1, 2, 2, 3, 3, 3, 4, 4, 4, 4], 2, 3),
([1, 2, 2, 3, 3, 3, 4, 4, 4, 4], 2.5, 3),
([1, 2, 2, 3, 3, 3, 4, 4, 4, 4], 3, 6),
([1, 2, 2, 3, 3, 3, 4, 4, 4, 4], 3.5, 6),
([1, 2, 2, 3, 3, 3, 4, 4, 4, 4], 4, 10),
([1, 2, 2, 3, 3, 3, 4, 4, 4, 4], 5, 10),
]
for lst, elem, exp in cases:
assert bisect_right(lst, elem, len(lst)) == exp
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