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import pytest
from returns.primitives.exceptions import UnwrapFailedError
from returns.result import Failure, Success
def test_unwrap_success():
"""Ensures that unwrap works for Success container."""
assert Success(5).unwrap() == 5
def test_unwrap_failure():
"""Ensures that unwrap works for Failure container."""
with pytest.raises(UnwrapFailedError):
assert Failure(5).unwrap()
def test_unwrap_failure_with_exception():
"""Ensures that unwrap raises from the original exception."""
expected_exception = ValueError('error')
with pytest.raises(UnwrapFailedError) as excinfo:
Failure(expected_exception).unwrap()
assert 'ValueError: error' in str(
excinfo.getrepr(), # noqa: WPS441
)
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