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sudokutest.py
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sudokutest.py
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import unittest
import sudoku
class TestParseArguments(unittest.TestCase):
def test_it_parses_arguments(self):
level_name, board_number = sudoku.parse_arguments(
['sudoku.py', 'l33t', '5']
)
self.assertEqual(level_name, 'l33t')
self.assertEqual(board_number, 5)
def test_it_works_when_missing_board_number(self):
level_name, board_number = sudoku.parse_arguments(
['sudoku.py', 'l33t']
)
self.assertEqual(level_name, 'l33t')
self.assertEqual(board_number, -1)
def test_it_doesnt_work_when_missing_level_name(self):
self.assertRaises(
sudoku.SudokuError,
sudoku.parse_arguments, ['sudoku.py']
)
def test_it_doesnt_work_for_invalid_level_names(self):
for invalid_name in ['l00t', 'n33b', '']:
self.assertRaises(
sudoku.SudokuError,
sudoku.parse_arguments, ['sudoku.py', invalid_name]
)
def test_it_doesnt_work_for_invalid_board_numbers(self):
for invalid_board_number in ['-1', 'x']:
self.assertRaises(
sudoku.SudokuError,
sudoku.parse_arguments,
['sudoku.py', 'n00b', invalid_board_number]
)
class TestSudokuGameInit(unittest.TestCase):
def test_it_creates_board_from_file(self):
boards_file = ("123456789\n" * 9).strip().split('\n')
game = sudoku.SudokuGame(boards_file)
self.assertEqual(game.boards, [[range(1, 10)] * 9])
def test_it_creates_multiple_boards_from_file(self):
boards_file = ("012345678\n" * 18).strip().split('\n')
game = sudoku.SudokuGame(boards_file)
self.assertEqual(game.boards, [[range(0, 9)] * 9] * 2)
def test_it_doesnt_work_with_wrong_number_of_chars_per_line(self):
boards_file = ("1234567890\n" * 18).strip().split('\n')
self.assertRaises(sudoku.SudokuError, sudoku.SudokuGame, boards_file)
def test_it_doesnt_work_with_wrong_number_of_lines_per_file(self):
boards_file = ("123456789\n" * 19).strip().split('\n')
self.assertRaises(sudoku.SudokuError, sudoku.SudokuGame, boards_file)
def test_it_doesnt_work_with_invalid_chars(self):
boards_file = ("12345678x\n" * 9).strip().split('\n')
self.assertRaises(sudoku.SudokuError, sudoku.SudokuGame, boards_file)
class TestSudokuGameStart(unittest.TestCase):
boards_file = ("012345678\n" * 9 + "123456789\n" * 9).strip().split('\n')
def test_it_starts_game_with_specific_board_number(self):
game = sudoku.SudokuGame(self.boards_file)
game.start(0)
self.assertEqual(game.puzzle, [range(0, 9)] * 9)
game.start(1)
self.assertEqual(game.puzzle, [range(1, 10)] * 9)
def test_it_starts_game_with_random_board_number(self):
game = sudoku.SudokuGame(self.boards_file)
game.start(-1)
self.assertEqual(len(game.puzzle), 9)
def test_it_doesnt_start_game_with_wrong_board_number(self):
for wrong_board_number in [-2, 3, 9]:
game = sudoku.SudokuGame(self.boards_file)
self.assertRaises(
sudoku.SudokuError, game.start, wrong_board_number
)
class TestSudokuGameCheckers(unittest.TestCase):
boards_file = (
"012345678\n123456789\n" * 4 + "012345678\n" +
"\n".join(
[(a + b) * 4 + a for a, b in zip("012345678", "123456789")]
) + "\n" +
("123" * 2 + "012\n" + "456" * 2 + "345\n" + "789" * 2 + "678\n") * 3
).strip().split('\n')
def test_check_block_accepts_correct_sequences(self):
game = sudoku.SudokuGame(self.boards_file)
game.start(-1)
for p in [xrange(1, 10), reversed(xrange(1, 10))]:
self.assertTrue(game.check_block(p))
def test_check_block_doesnt_accept_incorrect_sequences(self):
game = sudoku.SudokuGame(self.boards_file)
game.start(-1)
for p in [xrange(0, 9), reversed(xrange(0, 9))]:
self.assertFalse(game.check_block(p))
def test_check_row_only_accepts_correct_rows(self):
game = sudoku.SudokuGame(self.boards_file)
game.start(0)
for row in xrange(9):
self.assertEqual(game.check_row(row), row % 2 != 0)
def test_check_column_only_accepts_correct_columns(self):
game = sudoku.SudokuGame(self.boards_file)
game.start(1)
for column in xrange(9):
self.assertEqual(game.check_column(column), column % 2 != 0)
def test_check_square_only_accepts_correct_squares(self):
game = sudoku.SudokuGame(self.boards_file)
game.start(2)
for row in xrange(3):
for column in xrange(3):
self.assertEqual(
game.check_square(row, column), column != 2
)
class TestSudokuGameSetAnswerToPuzzle(unittest.TestCase):
def test_it_resets_the_game(self):
boards_file = ("012345678\n" * 9).strip().split('\n')
game = sudoku.SudokuGame(boards_file)
game.game_over = True
game.answer = [range(1, 10)] * 9
game.set_answer_to_puzzle()
self.assertFalse(game.game_over)
self.assertEqual(game.puzzle, game.answer)
if __name__ == '__main__':
unittest.main()