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# copyright 2003-2014 LOGILAB S.A. (Paris, FRANCE), all rights reserved.
# contact http://www.logilab.fr/ -- mailto:contact@logilab.fr
#
# This file is part of astroid.
#
# astroid is free software: you can redistribute it and/or modify it
# under the terms of the GNU Lesser General Public License as published by the
# Free Software Foundation, either version 2.1 of the License, or (at your
# option) any later version.
#
# astroid is distributed in the hope that it will be useful, but
# WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
# FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License
# for more details.
#
# You should have received a copy of the GNU Lesser General Public License along
# with astroid. If not, see <http://www.gnu.org/licenses/>.
import os
import platform
import sys
import unittest
import six
from astroid import exceptions
from astroid import manager
from astroid.tests import resources
BUILTINS = six.moves.builtins.__name__
def _get_file_from_object(obj):
if platform.python_implementation() == 'Jython':
return obj.__file__.split("$py.class")[0] + ".py"
if sys.version_info > (3, 0) or platform.python_implementation() == 'PyPy':
return obj.__file__
else:
return obj.__file__[:-1]
class AstroidManagerTest(resources.SysPathSetup,
resources.AstroidCacheSetupMixin,
unittest.TestCase):
def setUp(self):
super(AstroidManagerTest, self).setUp()
self.manager = manager.AstroidManager()
self.manager.clear_cache(self._builtins) # take care of borg
def test_ast_from_file(self):
filepath = unittest.__file__
astroid = self.manager.ast_from_file(filepath)
self.assertEqual(astroid.name, 'unittest')
self.assertIn('unittest', self.manager.astroid_cache)
def test_ast_from_file_cache(self):
filepath = unittest.__file__
self.manager.ast_from_file(filepath)
astroid = self.manager.ast_from_file('unhandledName', 'unittest')
self.assertEqual(astroid.name, 'unittest')
self.assertIn('unittest', self.manager.astroid_cache)
def test_ast_from_file_astro_builder(self):
filepath = unittest.__file__
astroid = self.manager.ast_from_file(filepath, None, True, True)
self.assertEqual(astroid.name, 'unittest')
self.assertIn('unittest', self.manager.astroid_cache)
def test_ast_from_file_name_astro_builder_exception(self):
self.assertRaises(exceptions.AstroidBuildingError,
self.manager.ast_from_file, 'unhandledName')
def test_do_not_expose_main(self):
obj = self.manager.ast_from_module_name('__main__')
self.assertEqual(obj.name, '__main__')
self.assertEqual(obj.items(), [])
def test_ast_from_module_name(self):
astroid = self.manager.ast_from_module_name('unittest')
self.assertEqual(astroid.name, 'unittest')
self.assertIn('unittest', self.manager.astroid_cache)
def test_ast_from_module_name_not_python_source(self):
astroid = self.manager.ast_from_module_name('time')
self.assertEqual(astroid.name, 'time')
self.assertIn('time', self.manager.astroid_cache)
self.assertEqual(astroid.pure_python, False)
def test_ast_from_module_name_astro_builder_exception(self):
self.assertRaises(exceptions.AstroidBuildingError,
self.manager.ast_from_module_name,
'unhandledModule')
def _test_ast_from_zip(self, archive):
origpath = sys.path[:]
sys.modules.pop('mypypa', None)
archive_path = resources.find(archive)
sys.path.insert(0, archive_path)
try:
module = self.manager.ast_from_module_name('mypypa')
self.assertEqual(module.name, 'mypypa')
end = os.path.join(archive, 'mypypa')
self.assertTrue(module.file.endswith(end),
"%s doesn't endswith %s" % (module.file, end))
finally:
# remove the module, else after importing egg, we don't get the zip
if 'mypypa' in self.manager.astroid_cache:
del self.manager.astroid_cache['mypypa']
del self.manager._mod_file_cache[('mypypa', None)]
if archive_path in sys.path_importer_cache:
del sys.path_importer_cache[archive_path]
sys.path = origpath
def test_ast_from_module_name_egg(self):
self._test_ast_from_zip(
os.path.sep.join(['data', os.path.normcase('MyPyPa-0.1.0-py2.5.egg')])
)
def test_ast_from_module_name_zip(self):
self._test_ast_from_zip(
os.path.sep.join(['data', os.path.normcase('MyPyPa-0.1.0-py2.5.zip')])
)
def test_zip_import_data(self):
"""check if zip_import_data works"""
filepath = resources.find('data/MyPyPa-0.1.0-py2.5.zip/mypypa')
astroid = self.manager.zip_import_data(filepath)
self.assertEqual(astroid.name, 'mypypa')
def test_zip_import_data_without_zipimport(self):
"""check if zip_import_data return None without zipimport"""
self.assertEqual(self.manager.zip_import_data('path'), None)
def test_file_from_module(self):
"""check if the unittest filepath is equals to the result of the method"""
self.assertEqual(
_get_file_from_object(unittest),
self.manager.file_from_module_name('unittest', None)[0])
def test_file_from_module_name_astro_building_exception(self):
"""check if the method launch a exception with a wrong module name"""
self.assertRaises(exceptions.AstroidBuildingError,
self.manager.file_from_module_name, 'unhandledModule', None)
def test_ast_from_module(self):
astroid = self.manager.ast_from_module(unittest)
self.assertEqual(astroid.pure_python, True)
import time
astroid = self.manager.ast_from_module(time)
self.assertEqual(astroid.pure_python, False)
def test_ast_from_module_cache(self):
"""check if the module is in the cache manager"""
astroid = self.manager.ast_from_module(unittest)
self.assertEqual(astroid.name, 'unittest')
self.assertIn('unittest', self.manager.astroid_cache)
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.AstroidBuildingError,
self.manager.ast_from_class, None)
def testFailedImportHooks(self):
def hook(modname):
if modname == 'foo.bar':
return unittest
else:
raise exceptions.AstroidBuildingError()
with self.assertRaises(exceptions.AstroidBuildingError):
self.manager.ast_from_module_name('foo.bar')
self.manager.register_failed_import_hook(hook)
self.assertEqual(unittest, self.manager.ast_from_module_name('foo.bar'))
with self.assertRaises(exceptions.AstroidBuildingError):
self.manager.ast_from_module_name('foo.bar.baz')
del self.manager._failed_import_hooks[0]
class BorgAstroidManagerTC(unittest.TestCase):
def test_borg(self):
"""test that the AstroidManager is really a borg, i.e. that two different
instances has same cache"""
first_manager = manager.AstroidManager()
built = first_manager.ast_from_module_name(BUILTINS)
second_manager = manager.AstroidManager()
second_built = second_manager.ast_from_module_name(BUILTINS)
self.assertIs(built, second_built)
if __name__ == '__main__':
unittest.main()
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