from diceplayer.shared.config.dice_config import DiceConfig

import unittest


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

        self.assertIsInstance(dice_dto, DiceConfig)

    def test_validate_jname(self):
        with self.assertRaises(ValueError) as ex:
            DiceConfig(
                ljname=None,
                outname="test",
                dens=1.0,
                nmol=[1],
                nstep=[1, 1],
            )
            self.assertEqual(
                ex.exception, "Error: 'ljname' keyword not specified in config file"
            )

    def test_validate_outname(self):
        with self.assertRaises(ValueError) as ex:
            DiceConfig(
                ljname="test",
                outname=None,
                dens=1.0,
                nmol=[1],
                nstep=[1, 1],
            )
            self.assertEqual(
                ex.exception, "Error: 'outname' keyword not specified in config file"
            )

    def test_validate_dens(self):
        with self.assertRaises(ValueError) as ex:
            DiceConfig(
                ljname="test",
                outname="test",
                dens=None,
                nmol=[1],
                nstep=[1, 1],
            )
            self.assertEqual(
                ex.exception, "Error: 'dens' keyword not specified in config file"
            )

    def test_validate_nmol(self):
        with self.assertRaises(ValueError) as ex:
            DiceConfig(
                ljname="test",
                outname="test",
                dens=1.0,
                nmol=0,
                nstep=[1, 1],
            )
            self.assertEqual(
                ex.exception,
                "Error: 'nmol' keyword not defined appropriately in config file",
            )

    def test_validate_nstep(self):
        with self.assertRaises(ValueError) as ex:
            DiceConfig(
                ljname="test",
                outname="test",
                dens=1.0,
                nmol=[1],
                nstep=0,
            )
            self.assertEqual(
                ex.exception,
                "Error: 'nstep' keyword not defined appropriately in config file",
            )

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

        self.assertIsInstance(dice_dto, DiceConfig)