def test_failure_type(self):
# Prove there is no syntax error in the raw value.
literal = parse_literal('1.0', acceptable_types=float)
self.assertEqual(1.0, literal)
# Now we can safely assume the ValueError is raise due to type checking.
with self.assertRaises(ValueError):
parse_literal('1.0', acceptable_types=int)
def test_failure_type(self):
# Prove there is no syntax error in the raw value.
literal = parse_literal('1.0', acceptable_types=float)
self.assertEqual(1.0, literal)
# Now we can safely assume the ValueError is raise due to type checking.
with self.assertRaises(ValueError):
parse_literal('1.0', acceptable_types=int)
def _convert(val, acceptable_types):
"""Ensure that val is one of the acceptable types, converting it if needed.
:param string val: The value we're parsing.
:param acceptable_types: A tuple of expected types for val.
:returns: The parsed value.
:raises :class:`pants.options.errors.ParseError`: if there was a problem parsing the val as an
acceptable type.
"""
return parse_literal(val, acceptable_types, raise_type=ParseError)
def _convert(val, acceptable_types):
"""Ensure that val is one of the acceptable types, converting it if needed.
:param string val: The value we're parsing.
:param acceptable_types: A tuple of expected types for val.
:returns: The parsed value.
:raises :class:`pants.options.errors.ParseError`: if there was a problem parsing the val as an
acceptable type.
"""
return parse_literal(val, acceptable_types, raise_type=ParseError)
def _getinstance(self, section, option, type_, default=None):
if not self.has_option(section, option):
return default
raw_value = self.get_value(section, option)
# We jump through some hoops here to deal with the fact that `six.string_types` is a tuple of
# types.
if (type_ == six.string_types or
(isinstance(type_, type) and issubclass(type_, six.string_types))):
return raw_value
key = '{}.{}'.format(section, option)
return parse_literal(name=key, val=raw_value, acceptable_types=type_,
raise_type=self.ConfigError)
def _getinstance(self, section, option, type_, default=None):
if not self.has_option(section, option):
return default
raw_value = self.get_value(section, option)
# We jump through some hoops here to deal with the fact that `six.string_types` is a tuple of
# types.
if (type_ == six.string_types or
(isinstance(type_, type) and issubclass(type_, six.string_types))):
return raw_value
key = '{}.{}'.format(section, option)
return parse_literal(name=key,
val=raw_value,
acceptable_types=type_,
raise_type=self.ConfigError)
def test_custom_error_type(self):
class CustomError(Exception):
pass
with self.assertRaises(CustomError):
parse_literal('1.0', acceptable_types=int, raise_type=CustomError)
def test_failure_syntax(self):
with self.assertRaises(ValueError):
# Only literals are allowed!
parse_literal('1+2', acceptable_types=int)
def test_success_mixed(self):
literal = parse_literal('42', acceptable_types=(float, int))
self.assertEqual(42, literal)
def test_success_simple(self):
literal = parse_literal("'42'", acceptable_types=six.string_types)
self.assertEqual('42', literal)
def test_custom_error_type(self):
class CustomError(Exception):
pass
with self.assertRaises(CustomError):
parse_literal('1.0', acceptable_types=int, raise_type=CustomError)
def test_failure_syntax(self):
with self.assertRaises(ValueError):
# Only literals are allowed!
parse_literal('1+2', acceptable_types=int)
def test_success_mixed(self):
literal = parse_literal('42', acceptable_types=(float, int))
self.assertEqual(42, literal)
def test_success_simple(self):
literal = parse_literal("'42'", acceptable_types=six.string_types)
self.assertEqual('42', literal)
