def test_opening_an_invalid_position_raises_an_exception(self):
board = Board(beginner, [1, 2, 3], [])
with self.assertRaises(InvalidPositionException):
board.open(-1)
with self.assertRaises(InvalidPositionException):
board.open(100000)
def test_opening_a_flagged_position_removes_the_flag_from_the_position(
self):
board = Board(beginner, [1, 2, 3], [])
board = board.toggle_flag(20)
self.assertCountEqual([20], board.flagmap)
board = board.open(20)
self.assertCountEqual([], board.flagmap)
def test_opening_space_with_a_corner_mine(self):
# M 1 x x x x x x
# 1 1 x x x x x x
# x x x x x x x x
board = Board(beginner, [0], [])
self.assertEqual(0, board.adjacent_mine_count(5))
board = board.open(5)
expected_openmap = set((i for i in range(64))).difference([0])
self.assertCountEqual(expected_openmap, board.openmap)
def test_opening_space_with_some_side_mines(self):
# H M M M 1 x x x
# 1 2 3 2 1 x x x
# x x x x x x x x
# The top left corner isn't reachable from the open space, so it shouldn't be opened
board = Board(beginner, [1, 2, 3], [])
self.assertEqual(0, board.adjacent_mine_count(5))
board = board.open(5)
expected_openmap = set((i for i in range(64))).difference([0, 1, 2, 3])
self.assertCountEqual(expected_openmap, board.openmap)
def test_opening_space_with_a_mine_island(self):
# x x x x x x x x
# x x 1 2 2 1 x x
# x x 1 M M 1 x x
# x x 1 2 2 1 x x
# x x x x x x x x
board = Board(beginner, [19, 20], [])
self.assertEqual(0, board.adjacent_mine_count(0))
board = board.open(0)
expected_openmap = set((i for i in range(64))).difference([19, 20])
self.assertCountEqual(expected_openmap, board.openmap)
def test_opening_an_position_adjacent_to_mines_doesnt_autoopen_other_positions(
self):
board = Board(beginner, [1, 2, 3], [])
self.assertGreater(board.adjacent_mine_count(4), 0)
board = board.open(4)
self.assertCountEqual([4], board.openmap)
def test_opening_all_but_the_mines_wins_the_game(self):
board = Board(beginner, [1, 2, 3], (i for i in range(4, 64)))
self.assertIsNone(board.won())
board = board.open(0)
self.assertTrue(board.won())
def test_opening_a_mine_loses_the_game(self):
board = Board(beginner, [1, 2, 3], [])
self.assertIsNone(board.won())
board = board.open(1)
self.assertFalse(board.won())