def test_parses_bool_flag(self):
with patch("sys.argv", ["prog", "--baz"]):
assert load_flags(fields(Config)) == {"baz": True}
for t in ("True", "true"):
with patch("sys.argv", ["prog", f"--baz={t}"]):
assert load_flags(fields(Config)) == {"baz": True}
for f in ("False", "false"):
with patch("sys.argv", ["prog", f"--baz={f}"]):
assert load_flags(fields(Config)) == {"baz": False}
def test_fails_on_invalid_value(self):
with raises(ConfigError):
with patch("sys.argv", ["prog", "--bar", "buff"]):
load_flags(fields(Config))
def test_parses_quoted_negative_numbers(self, val):
with patch("sys.argv", ["prog", f"--bar", f'"{val}"']):
res = load_flags(fields(Config))
assert res == {"bar": -10}
def test_parses_negative_numbers(self, val):
with patch("sys.argv", ["prog", f"--bar={val}"]):
assert load_flags(fields(Config)) == {"bar": -10}
def test_parses_ok(self, val):
with patch("sys.argv", ["prog", "--bar", val]):
assert load_flags(fields(Config)) == {"bar": 10}
with patch("sys.argv", ["prog", f"--bar={val}"]):
assert load_flags(fields(Config)) == {"bar": 10}
def test_parses_strings_with_quotes(self):
with patch("sys.argv", ["prog", "--foo", 'bar="baz"']):
assert load_flags(fields(Config)) == {"foo": 'bar="baz"'}
def test_parses_strings_with_whitespace(self):
with patch("sys.argv", ["prog", "--foo", "bar baz quux"]):
assert load_flags(fields(Config)) == {"foo": "bar baz quux"}
with patch("sys.argv", ["prog", '--foo="bar baz quux"']):
assert load_flags(fields(Config)) == {"foo": "bar baz quux"}
def test_parses_string_flag(self):
with patch("sys.argv", ["prog", "--foo", "bar"]):
assert load_flags(fields(Config)) == {"foo": "bar"}
with patch("sys.argv", ["prog", "--foo=bar"]):
assert load_flags(fields(Config)) == {"foo": "bar"}
def test_with_no_value(self):
with patch("sys.argv", ["prog", "--foo"]):
assert load_flags(fields(Config)) == {}
def test_parses_negated_flag(self):
with patch("sys.argv", ["prog", "--no-baz"]):
assert load_flags(fields(Config)) == {"baz": False}
def test_rejects_ambiguous_flags():
with patch("sys.argv", ["prog", "--baz=True", "--baz=false", "--baz"]):
with raises(ConfigError, match="--baz"):
load_flags(fields(Config))
def test_ignores_unknown_args():
with patch("sys.argv", ["prog", "--fubard", "snafu"]):
assert load_flags(fields(Config)) == {}
def test_no_args():
with patch("sys.argv", ["prog"]):
assert load_flags(fields(Config)) == {}