from diceplayer.config.dice_config import DiceConfig

import pytest


class TestDiceConfig:
    def test_class_instantiation(self):
        dice_dto = DiceConfig(
            ljname="test",
            outname="test",
            dens=1.0,
            nmol=[1],
            nstep=[1, 1],
        )

        assert isinstance(dice_dto, DiceConfig)

    def test_validate_jname(self):
        with pytest.raises(ValueError) as ex:
            DiceConfig(
                ljname=None,
                outname="test",
                dens=1.0,
                nmol=[1],
                nstep=[1, 1],
            )

            assert ex.value == "Error: 'ljname' keyword not specified in config file"

    def test_validate_outname(self):
        with pytest.raises(ValueError) as ex:
            DiceConfig(
                ljname="test",
                outname=None,
                dens=1.0,
                nmol=[1],
                nstep=[1, 1],
            )

            assert ex.value == "Error: 'outname' keyword not specified in config file"

    def test_validate_dens(self):
        with pytest.raises(ValueError) as ex:
            DiceConfig(
                ljname="test",
                outname="test",
                dens=None,
                nmol=[1],
                nstep=[1, 1],
            )

            assert ex.value == "Error: 'dens' keyword not specified in config file"

    def test_validate_nmol(self):
        with pytest.raises(ValueError) as ex:
            DiceConfig(
                ljname="test",
                outname="test",
                dens=1.0,
                nmol=0,
                nstep=[1, 1],
            )

            assert ex.value == "Error: 'nmol' keyword not specified in config file"

    def test_validate_nstep(self):
        with pytest.raises(ValueError) as ex:
            DiceConfig(
                ljname="test",
                outname="test",
                dens=1.0,
                nmol=[1],
                nstep=0,
            )

            assert ex.value == "Error: 'nstep' keyword not specified in config file"

    def test_from_dict(self):
        dice_dto = DiceConfig.model_validate(
            {
                "ljname": "test",
                "outname": "test",
                "dens": 1.0,
                "nmol": [1],
                "nstep": [1, 1],
            }
        )

        assert isinstance(dice_dto, DiceConfig)