def test_equal_2(self):
     self.assertEqual(chessboard('5 2'), '*.\n.*\n*.\n.*\n*.')
 def test_equal_5(self):
     self.assertEqual(chessboard('17 0'), '')
 def test_equal_1(self):
     self.assertEqual(chessboard('2 2'), '*.\n.*')
 def test_equal_3(self):
     self.assertEqual(
         chessboard('7 7'), '*.*.*.*\n.*.*.*.\n*.*.*.*\n'
         '.*.*.*.\n*.*.*.*\n.*.*.*.\n*.*.*.*')
 def test_equal_4(self):
     self.assertEqual(
         chessboard('8 8'), '*.*.*.*.\n.*.*.*.*\n*.*.*.*.\n.*.*.*.*\n'
         '*.*.*.*.\n.*.*.*.*\n*.*.*.*.\n.*.*.*.*')
 def test_equal_2(self):
     self.assertEqual(chessboard('5 2'), '*.\n.*\n*.\n.*\n*.')
 def test_equal_1(self):
     self.assertEqual(chessboard('2 2'), '*.\n.*')
 def test_equal_5(self):
     self.assertEqual(chessboard('17 0'), '')
 def test_equal_4(self):
     self.assertEqual(chessboard('8 8'),
                      '*.*.*.*.\n.*.*.*.*\n*.*.*.*.\n.*.*.*.*\n'
                      '*.*.*.*.\n.*.*.*.*\n*.*.*.*.\n.*.*.*.*')
 def test_equal_3(self):
     self.assertEqual(chessboard('7 7'),
                      '*.*.*.*\n.*.*.*.\n*.*.*.*\n'
                      '.*.*.*.\n*.*.*.*\n.*.*.*.\n*.*.*.*')