"""All tests for the Sudoku Solver."""

import unittest
from square import Square


class TestSquare(unittest.TestCase):
    """TestCase for Square"""

    def setUp(self):
        content = '.'
        self.board = [
            Square(line, column, content)
            for line in range(9)
            for column in range(9)
        ]

        self.assertEqual(len(self.board), 81)

    def test_grid_is_correctly_computed(self):
        """Square.grid is correctly computed for all values."""

        correct_grids = (
            "000111222"
            "000111222"
            "000111222"
            "333444555"
            "333444555"
            "333444555"
            "666777888"
            "666777888"
            "666777888"
        )

        for i, square in enumerate(self.board):
            self.assertEqual(square.grid_id, int(correct_grids[i]))


if __name__ == '__main__':
    unittest.main()