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import inspect
import os
import unittest
from six.moves import builtins # pylint: disable=import-error
from astroid.builder import AstroidBuilder
from astroid import nodes
from astroid import raw_building
from astroid import test_utils
from astroid import util
BUILTINS = builtins.__name__
class RawBuildingTC(unittest.TestCase):
@test_utils.require_version(minver='3.0')
def test_io_is__io(self):
# _io module calls itself io. This leads
# to cyclic dependencies when astroid tries to resolve
# what io.BufferedReader is. The code that handles this
# is in astroid.raw_building.imported_member, which verifies
# the true name of the module.
import _io
module = raw_building.ast_from_object(_io, name='io')
buffered_reader = module.getattr('BufferedReader')[0]
self.assertEqual(buffered_reader.root().name, 'io')
@unittest.skipUnless(util.JYTHON, 'Requires Jython')
def test_open_is_inferred_correctly(self):
# Lot of Jython builtins don't have a __module__ attribute.
for name, _ in inspect.getmembers(builtins, predicate=inspect.isbuiltin):
if name == 'print':
continue
node = test_utils.extract_node('{0} #@'.format(name))
inferred = next(node.infer())
self.assertIsInstance(inferred, nodes.FunctionDef, name)
self.assertEqual(inferred.root().name, BUILTINS, name)
# def test_ast_from_class(self):
# astroid = self.manager.ast_from_class(int)
# self.assertEqual(astroid.name, 'int')
# self.assertEqual(astroid.parent.frame().name, BUILTINS)
# astroid = self.manager.ast_from_class(object)
# self.assertEqual(astroid.name, 'object')
# self.assertEqual(astroid.parent.frame().name, BUILTINS)
# self.assertIn('__setattr__', astroid)
# def test_ast_from_class_with_module(self):
# """check if the method works with the module name"""
# astroid = self.manager.ast_from_class(int, int.__module__)
# self.assertEqual(astroid.name, 'int')
# self.assertEqual(astroid.parent.frame().name, BUILTINS)
# astroid = self.manager.ast_from_class(object, object.__module__)
# self.assertEqual(astroid.name, 'object')
# self.assertEqual(astroid.parent.frame().name, BUILTINS)
# self.assertIn('__setattr__', astroid)
# def test_ast_from_class_attr_error(self):
# """give a wrong class at the ast_from_class method"""
# self.assertRaises(exceptions.AstroidBuildingException,
# self.manager.ast_from_class, None)
if __name__ == '__main__':
unittest.main()
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