def test_context_result_immutable():
"""Ensures that helper is immutable."""
with pytest.raises(ImmutableStateError):
ContextResult().abc = 1
def test_context_result_immutable_deepcopy():
"""Ensures that helper returns it self when passed to deepcopy function."""
context_result: ContextResult = ContextResult()
assert context_result is deepcopy(context_result)
Mappable,
Rescueable,
Unitable,
Unwrapable,
)
from returns.result import Failure, Success
@pytest.mark.parametrize('container', [
RequiresContextResult(lambda _: Success(1)),
RequiresContextResult(lambda _: Failure(1)),
RequiresContextResult.from_success(1),
RequiresContextResult.from_failure(1),
RequiresContextResult.from_result(Success(1)),
RequiresContextResult.from_result(Failure(1)),
ContextResult.ask(),
])
@pytest.mark.parametrize('protocol', [
Bindable,
Mappable,
Rescueable,
Unwrapable,
Altable,
Fixable,
Unitable,
])
def test_protocols(container, protocol):
"""Ensures that RequiresContext has all the right protocols."""
assert isinstance(container, protocol)