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# -*- coding: utf-8 -*-
"""These test the utils.py functions."""
from hypothesis import given
from hypothesis.strategies import binary, floats, integers, lists, text
from natsort.utils import natsort_key
def str_func(x):
if isinstance(x, str):
return x
else:
raise TypeError("Not a str!")
def fail(_):
raise AssertionError("This should never be reached!")
@given(floats(allow_nan=False) | integers())
def test_natsort_key_with_numeric_input_takes_number_path(x):
assert natsort_key(x, None, str_func, fail, lambda y: y) is x
@given(binary().filter(bool))
def test_natsort_key_with_bytes_input_takes_bytes_path(x):
assert natsort_key(x, None, str_func, lambda y: y, fail) is x
@given(text())
def test_natsort_key_with_text_input_takes_string_path(x):
assert natsort_key(x, None, str_func, fail, fail) is x
@given(lists(elements=text(), min_size=1, max_size=10))
def test_natsort_key_with_nested_input_takes_nested_path(x):
assert natsort_key(x, None, str_func, fail, fail) == tuple(x)
@given(text())
def test_natsort_key_with_key_argument_applies_key_before_processing(x):
assert natsort_key(x, len, str_func, fail, lambda y: y) == len(x)
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