def test_input_folder_invalid_non_existant(self):
input = input_folder_exists('files/')
self.assertFalse(input)
def test_input_folder_invalid_blank(self):
input = input_folder_exists(' ')
self.assertFalse(input)
def test_input_folder_invalid_01(self):
input = input_folder_exists('01')
self.assertFalse(input)
def test_input_folder_empty(self):
input = input_folder_exists('tests/empty')
self.assertFalse(input)
def test_input_folder_valid(self):
input = input_folder_exists('tests/images/')
self.assertTrue(input)