def test_one_with_zero_values():
with pytest.raises(i.ZeroValuesError):
i.one(())
def test_one_not_iterable():
assert i.one(1) == 1
def test_one_with_multiple_values():
with pytest.raises(i.MultipleValuesError):
i.one((1,2))
def test_one():
assert i.one((1,)) == 1
def test_one_with_zero_values():
with pytest.raises(i.ZeroValuesError):
i.one(())
def test_one_with_multiple_values():
with pytest.raises(i.MultipleValuesError):
i.one((1, 2))
def test_one_not_iterable():
assert i.one(1) == 1
def test_one():
assert i.one((1, )) == 1
