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bonobo/tests/util/test_collections.py
2019-05-08 12:01:59 +02:00

42 lines
971 B
Python

import pytest
from bonobo.util import ensure_tuple, sortedlist
from bonobo.util.collections import cast, tuple_or_const, tuplize
def test_sortedlist():
l = sortedlist()
l.insort(2)
l.insort(1)
l.insort(3)
l.insort(2)
assert l == [1, 2, 2, 3]
def test_tuple_or_const():
assert tuple_or_const(()) == ()
assert tuple_or_const((1,)) == (1,)
assert tuple_or_const((1, 2)) == (1, 2)
assert tuple_or_const([1, 2]) == (1, 2)
assert tuple_or_const("aaa") == ("aaa",)
def test_ensure_tuple():
assert ensure_tuple("a") == ("a",)
assert ensure_tuple(("a",)) == ("a",)
assert ensure_tuple(()) is ()
@pytest.mark.parametrize("tuplize", [tuplize, cast(tuple)])
def test_tuplize(tuplize):
tuplized_lambda = tuplize(lambda: [1, 2, 3])
assert tuplized_lambda() == (1, 2, 3)
@tuplize
def some_generator():
yield "c"
yield "b"
yield "a"
assert some_generator() == ("c", "b", "a")