def test_equal_start_and_end(self):
n = 1
count, start, end = create_state(n * 2)
self.assertTrue(dfs(start, end=start))
self.assertEqual(count, n)
def test_with_twenty_frogs(self):
n = 20
count, start, end = create_state(n * 2)
self.assertEqual(count, n)
self.assertTrue(dfs(start, end=end, zero_index=count))
def test_empty_equal_start_and_end(self):
n = 0
count, start, end = create_state(n)
self.assertTrue(dfs(start, end=end))
self.assertEqual(count, n)