def test_nine_extensions(self):
big = SudokuPuzzle([
['E', 'C', '', '', 'G', '', '', '', ''],
['F', '', '', 'A', 'I', 'E', '', '', ''],
['', 'I', 'H', '', '', '', '', 'F', ''],
['H', '', '', '', 'F', '', '', '', 'C'],
['D', '', '', 'H', '', 'C', '', '', 'A'],
['G', '', '', '', 'B', '', '', '', 'F'],
['', 'F', '', '', '', '', 'B', 'H', ''],
['', '', '', 'D', 'A', 'I', '', '', 'E'],
['', '', '', '', 'H', '', '', 'G', 'I']])
self.assertEqual(big._possible_letters(4, 4),
['E'])
self.assertEqual(big._possible_letters(3, 3),
['E', 'G', 'I'])
def test_nine_extensions(self):
big = SudokuPuzzle([['E', 'C', '', '', 'G', '', '', '', ''],
['F', '', '', 'A', 'I', 'E', '', '', ''],
['', 'I', 'H', '', '', '', '', 'F', ''],
['H', '', '', '', 'F', '', '', '', 'C'],
['D', '', '', 'H', '', 'C', '', '', 'A'],
['G', '', '', '', 'B', '', '', '', 'F'],
['', 'F', '', '', '', '', 'B', 'H', ''],
['', '', '', 'D', 'A', 'I', '', '', 'E'],
['', '', '', '', 'H', '', '', 'G', 'I']])
self.assertEqual(big._possible_letters(4, 4), ['E'])
self.assertEqual(big._possible_letters(3, 3), ['E', 'G', 'I'])
def test_sample3(self):
s = SudokuPuzzle([['A', 'B', '', 'D'],
['C', 'D', '', 'B'],
['B', '', '', ''],
['D', '', 'A', '']])
self.assertEqual(s._possible_letters(2, 3), ['C'])
def test_sample3(self):
s = SudokuPuzzle([['A', 'B', '', 'D'], ['C', 'D', '', 'B'],
['B', '', '', ''], ['D', '', 'A', '']])
self.assertEqual(s._possible_letters(2, 3), ['C'])