import pytest

from pydantic import ValidationError

import cipy
import cipy.common


class Outputs(cipy.common.Outputs):
    a: int = cipy.required()


def test_outputs_can_be_constructed_in_illegal_state() -> None:
    output = Outputs()


def test_outputs_forbids_extras() -> None:
    output = cipy.common.Outputs()
    output.__dict__["A"] = 1

    with pytest.raises(ValidationError):
        output.validated()


def test_outputs_validated_throws_on_unset_attr() -> None:
    output = Outputs()

    with pytest.raises(ValidationError):
        output.validated()


def test_outputs_subclass_can_be_constructed() -> None:
    output = Outputs(a=1).validated()


def test_ref_cannot_be_empty_ctor() -> None:
    with pytest.raises(TypeError):
        cipy.common.Ref()  # type: ignore[call-arg]


def test_ref_cannot_be_empty_str() -> None:
    with pytest.raises(ValueError):
        cipy.common.Ref("")


def test_ref_cannot_be_single_token() -> None:
    with pytest.raises(ValueError):
        cipy.common.Ref("A")


def test_ref_cannot_be_two_tokens() -> None:
    cipy.common.Ref("A.B")


def test_ref_path_is_pattern_validated() -> None:
    with pytest.raises(ValueError):
        cipy.common.Ref("A._B")