def test_better_file_reader_known_exceptions(self, mock_stdout):
test_cases = [
"locked_out_file.txt",
"file_that_does_not_exist.txt"
]
for file_path in test_cases:
with self.subTest(f"{file_path}"):
file_reader.better_file_reader(file_path)
self.assertIn(
"Error opening the file. Please ensure the file exists and has appropriate permissions.",
mock_stdout.getvalue()
)
def test_better_file_reader_known_happy_path(self):
with patch('file_reader.process_file') as cm:
file_reader.better_file_reader("my_awesome_file.txt")
cm.assert_called_once()