def test_single(self):
self.assertEqual([1], spiral([[1]]))
def test_odd_rectangle(self):
self.assertEqual([1, 2, 3, 6, 9, 12, 15, 14, 13, 10, 7, 4, 5, 8, 11],
spiral([[1, 2, 3], [4, 5, 6], [7, 8, 9], [10, 11, 12],
[13, 14, 15]]))
def test_empty(self):
self.assertEqual([], spiral([]))
def test_even_rectangle(self):
self.assertEqual([1, 2, 4, 6, 8, 7, 5, 3],
spiral([[1, 2], [3, 4], [5, 6], [7, 8]]))
def test_odd_square(self):
self.assertEqual([1, 2, 3, 6, 9, 8, 7, 4, 5],
spiral([[1, 2, 3], [4, 5, 6], [7, 8, 9]]))
def test_simple_square(self):
self.assertEqual([1, 2, 4, 3], spiral([[1, 2], [3, 4]]))
def test_one_column(self):
self.assertEqual([1, 2, 3], spiral([[1], [2], [3]]))
def test_one_row(self):
self.assertEqual([1, 2, 3], spiral([[1, 2, 3]]))