def test_init_special_chars(self):
sys.argv = [
'transpose.py', f'{pytest.TEST_DATA_FOLDER}/special_chars.txt'
]
expected = '@#$^&\n&^$#@'
with patch('sys.stdout', new=StringIO()) as output:
init()
self.assertEqual(output.getvalue().strip(), expected)
def test_init_spaced_words(self):
sys.argv = [
'transpose.py', f'{pytest.TEST_DATA_FOLDER}/spaced_words.txt'
]
expected = 'jumps over the\neht revo spmuj'
with patch('sys.stdout', new=StringIO()) as output:
init()
self.assertEqual(output.getvalue().strip(), expected)
def test_init_numbers(self):
sys.argv = [
'transpose.py', f'{pytest.TEST_DATA_FOLDER}/numbers_file.txt'
]
expected = '12345\n54321'
with patch('sys.stdout', new=StringIO()) as output:
init()
self.assertEqual(output.getvalue().strip(), expected)
def test_init(self):
sys.argv = [
'transpose.py', f'{pytest.TEST_DATA_FOLDER}/example_file.txt'
]
expected = 'abcde\nedcba'
with patch('sys.stdout', new=StringIO()) as output:
init()
self.assertEqual(output.getvalue().strip(), expected)
def test_init_invalid_args(self):
sys.argv = ['transpose.py']
with self.assertRaises(IndexError):
init()
def test_init_file_not_found(self):
sys.argv = ['transpose.py', f'{pytest.TEST_DATA_FOLDER}/test_data.txt']
with self.assertRaises(FileNotFoundError):
init()