def test_can_roll_back_function():
ctx = Context.make({"n": 4})
organizer = Organizer([add_two, add_three, fail_context])
result_ctx = organizer.run(ctx)
assert ctx.is_failure
assert result_ctx["result"] == 7
def test_can_run_functions():
ctx = Context.make({"n": 4})
organizer = Organizer([add_two, add_three])
result_ctx = organizer.run(ctx)
assert ctx.is_success
assert result_ctx["result"] == 9
def test_can_run_functions_with_failure():
ctx = Context.make({"n": 4})
organizer = Organizer([add_two, fail_context, add_three])
result_ctx = organizer.run(ctx)
assert ctx.is_failure
assert result_ctx["result"] == 6
def ctx() -> Context:
return Context.make()