def test_file_in(tmp_path):
# tmp_path is a pathlib.Path objected injected by pytest
fpath = tmp_path / 'test-input.txt'
assert not fpath.exists()
fpath.write_text('Test data')
assert fpath.exists()
args = parse_arguments(['-i', str(fpath)])
assert args.file_in.name == str(fpath)
def test_default_values():
args = parse_arguments([])
assert not args.verbose
assert args.file_in is sys.stdin
assert args.file_out is sys.stdout
def test_file_in_fails_nonexisting_file():
with pytest.raises(SystemExit):
args = parse_arguments(['-i', 'nosuchfile.txt'])
def test_verbose():
args = parse_arguments(['-v'])
assert args.verbose
args = parse_arguments(['--verbose'])
assert args.verbose
def test_quiet():
args = parse_arguments(['-q'])
assert not args.verbose
args = parse_arguments(['--quiet'])
assert not args.verbose