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from returns.maybe import Nothing, Some
def test_some_is_true() -> None:
"""Ensures that ``Something(...)`` is ``True`` when treated as a boolean."""
assert bool(Some(123))
assert bool(Some('abc'))
def test_nothing_is_false() -> None:
"""Ensures that ``Nothing`` is ``False`` when treated as a boolean."""
assert not bool(Nothing)
def test_some_none_is_true() -> None:
"""
Ensures that ``Something(None)`` is ``True`` when treated as a boolean.
See <https://github.com/dry-python/returns/issues/2177> for the discussion
of this design choice.
"""
assert bool(Some(None))
assert bool(Some(Nothing))
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