def test_version(self, capsys):
with pytest.raises(SystemExit) as e:
_parse_arguments(["--version"])
assert e.value.code == 0
del e # explicitly break reference cycle
out, err = capsys.readouterr()
assert err == ""
assert out == "{}\n".format(__version__)
def test_help(self, capsys):
expected_progname = os.path.basename(sys.argv[0])
with pytest.raises(SystemExit) as e:
_parse_arguments(["--help"])
assert e.value.code == 0
del e # explicitly break reference cycle
out, err = capsys.readouterr()
assert err == ""
initial_paragraph, rest = out.split("\n\n", 1)
assert re.match("usage:\s*{}\s*"
"\[-h\]\s*"
"\[--input-file INPUT_FILE\]\s*"
"\[--output-file OUTPUT_FILE\]\s*"
"\[--version\]\s*"
"proc-name".format(expected_progname), initial_paragraph)
assert rest == """\
def test_sys_argv(self, monkeypatch):
test_func_name = "I intend to live forever. So far, so good."
monkeypatch.setattr(sys, "argv", [sys.argv[0], test_func_name])
expected = test_func_name, None, None
assert _parse_arguments(_UndefinedParam) == expected
def test_error(self, argv):
with pytest.raises(SystemExit) as e:
_parse_arguments(argv)
assert e.value.code == 2
del e # explicitly break reference cycle
def test(self, argv, proc_name, input_file, output_file):
assert _parse_arguments(argv) == (proc_name, input_file, output_file)