Revert "Try to solve the packaging issues again"

This reverts commit d37b81de4f1e64abc2f222c487785d816ab469ea.

1 files changed, 274 insertions, 0 deletions

diff --git a/astroid/tests/unittest_modutils.py b/astroid/tests/unittest_modutils.py
new file mode 100644
index 00000000..3740aa26
--- /dev/null
+++ b/astroid/tests/unittest_modutils.py
@@ -0,0 +1,274 @@
+# 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/>.
+"""
+unit tests for module modutils (module manipulation utilities)
+"""
+import os
+import sys
+import unittest
+
+from astroid import modutils
+from astroid.tests import resources
+
+
+def _get_file_from_object(obj):
+    return modutils._path_from_filename(obj.__file__)
+
+
+class ModuleFileTest(unittest.TestCase):
+    package = "mypypa"
+
+    def tearDown(self):
+        for k in list(sys.path_importer_cache.keys()):
+            if 'MyPyPa' in k:
+                del sys.path_importer_cache[k]
+
+    def test_find_zipped_module(self):
+        mtype, mfile = modutils._module_file(
+            [self.package], [resources.find('data/MyPyPa-0.1.0-py2.5.zip')])
+        self.assertEqual(mtype, modutils.PY_ZIPMODULE)
+        self.assertEqual(mfile.split(os.sep)[-3:], ["data", "MyPyPa-0.1.0-py2.5.zip", self.package])
+
+    def test_find_egg_module(self):
+        mtype, mfile = modutils._module_file(
+            [self.package], [resources.find('data/MyPyPa-0.1.0-py2.5.egg')])
+        self.assertEqual(mtype, modutils.PY_ZIPMODULE)
+        self.assertEqual(mfile.split(os.sep)[-3:], ["data", "MyPyPa-0.1.0-py2.5.egg", self.package])
+
+
+class LoadModuleFromNameTest(unittest.TestCase):
+    """ load a python module from it's name """
+
+    def test_knownValues_load_module_from_name_1(self):
+        self.assertEqual(modutils.load_module_from_name('sys'), sys)
+
+    def test_knownValues_load_module_from_name_2(self):
+        self.assertEqual(modutils.load_module_from_name('os.path'), os.path)
+
+    def test_raise_load_module_from_name_1(self):
+        self.assertRaises(ImportError,
+                          modutils.load_module_from_name, 'os.path', use_sys=0)
+
+
+class GetModulePartTest(unittest.TestCase):
+    """given a dotted name return the module part of the name"""
+
+    def test_knownValues_get_module_part_1(self):
+        self.assertEqual(modutils.get_module_part('astroid.modutils'),
+                         'astroid.modutils')
+
+    def test_knownValues_get_module_part_2(self):
+        self.assertEqual(modutils.get_module_part('astroid.modutils.get_module_part'),
+                         'astroid.modutils')
+
+    def test_knownValues_get_module_part_3(self):
+        """relative import from given file"""
+        self.assertEqual(modutils.get_module_part('tree.node_classes.AssName',
+                                                  modutils.__file__), 'tree.node_classes')
+
+    def test_knownValues_get_compiled_module_part(self):
+        self.assertEqual(modutils.get_module_part('math.log10'), 'math')
+        self.assertEqual(modutils.get_module_part('math.log10', __file__), 'math')
+
+    def test_knownValues_get_builtin_module_part(self):
+        self.assertEqual(modutils.get_module_part('sys.path'), 'sys')
+        self.assertEqual(modutils.get_module_part('sys.path', '__file__'), 'sys')
+
+    def test_get_module_part_exception(self):
+        self.assertRaises(ImportError, modutils.get_module_part, 'unknown.module',
+                          modutils.__file__)
+
+
+class ModPathFromFileTest(unittest.TestCase):
+    """ given an absolute file path return the python module's path as a list """
+
+    def test_knownValues_modpath_from_file_1(self):
+        from xml.etree import ElementTree
+        self.assertEqual(modutils.modpath_from_file(ElementTree.__file__),
+                         ['xml', 'etree', 'ElementTree'])
+
+    def test_knownValues_modpath_from_file_2(self):
+        self.assertEqual(modutils.modpath_from_file('unittest_modutils.py',
+                                                    {os.getcwd(): 'arbitrary.pkg'}),
+                         ['arbitrary', 'pkg', 'unittest_modutils'])
+
+    def test_raise_modpath_from_file_Exception(self):
+        self.assertRaises(Exception, modutils.modpath_from_file, '/turlututu')
+
+
+class LoadModuleFromPathTest(resources.SysPathSetup, unittest.TestCase):
+
+    def test_do_not_load_twice(self):
+        modutils.load_module_from_modpath(['data', 'lmfp', 'foo'])
+        modutils.load_module_from_modpath(['data', 'lmfp'])
+        self.assertEqual(len(sys.just_once), 1)
+        del sys.just_once
+
+
+class FileFromModPathTest(resources.SysPathSetup, unittest.TestCase):
+    """given a mod path (i.e. splited module / package name), return the
+    corresponding file, giving priority to source file over precompiled file
+    if it exists"""
+
+    def test_site_packages(self):
+        filename = _get_file_from_object(modutils)
+        result = modutils.file_from_modpath(['astroid', 'modutils'])
+        self.assertEqual(os.path.realpath(result), os.path.realpath(filename))
+
+    def test_std_lib(self):
+        from os import path
+        self.assertEqual(os.path.realpath(modutils.file_from_modpath(['os', 'path']).replace('.pyc', '.py')),
+                         os.path.realpath(path.__file__.replace('.pyc', '.py')))
+
+    def test_xmlplus(self):
+        try:
+            # don't fail if pyxml isn't installed
+            from xml.dom import ext
+        except ImportError:
+            pass
+        else:
+            self.assertEqual(os.path.realpath(modutils.file_from_modpath(['xml', 'dom', 'ext']).replace('.pyc', '.py')),
+                             os.path.realpath(ext.__file__.replace('.pyc', '.py')))
+
+    def test_builtin(self):
+        self.assertEqual(modutils.file_from_modpath(['sys']),
+                         None)
+
+
+    def test_unexisting(self):
+        self.assertRaises(ImportError, modutils.file_from_modpath, ['turlututu'])
+
+    def test_unicode_in_package_init(self):
+        # file_from_modpath should not crash when reading an __init__
+        # file with unicode characters.
+        modutils.file_from_modpath(["data", "unicode_package", "core"])
+
+
+class GetSourceFileTest(unittest.TestCase):
+
+    def test(self):
+        filename = _get_file_from_object(os.path)
+        self.assertEqual(modutils.get_source_file(os.path.__file__),
+                         os.path.normpath(filename))
+
+    def test_raise(self):
+        self.assertRaises(modutils.NoSourceFile, modutils.get_source_file, 'whatever')
+
+
+class StandardLibModuleTest(resources.SysPathSetup, unittest.TestCase):
+    """
+    return true if the module may be considered as a module from the standard
+    library
+    """
+
+    def test_builtins(self):
+        if sys.version_info < (3, 0):
+            self.assertEqual(modutils.is_standard_module('__builtin__'), True)
+            self.assertEqual(modutils.is_standard_module('builtins'), False)
+        else:
+            self.assertEqual(modutils.is_standard_module('__builtin__'), False)
+            self.assertEqual(modutils.is_standard_module('builtins'), True)
+
+    def test_builtin(self):
+        self.assertEqual(modutils.is_standard_module('sys'), True)
+        self.assertEqual(modutils.is_standard_module('marshal'), True)
+
+    def test_nonstandard(self):
+        self.assertEqual(modutils.is_standard_module('astroid'), False)
+
+    def test_unknown(self):
+        self.assertEqual(modutils.is_standard_module('unknown'), False)
+
+    def test_4(self):
+        self.assertEqual(modutils.is_standard_module('hashlib'), True)
+        self.assertEqual(modutils.is_standard_module('pickle'), True)
+        self.assertEqual(modutils.is_standard_module('email'), True)
+        self.assertEqual(modutils.is_standard_module('io'), sys.version_info >= (2, 6))
+        self.assertEqual(modutils.is_standard_module('StringIO'), sys.version_info < (3, 0))
+        self.assertEqual(modutils.is_standard_module('unicodedata'), True)
+
+    def test_custom_path(self):
+        datadir = resources.find('')
+        if datadir.startswith(modutils.EXT_LIB_DIR):
+            self.skipTest('known breakage of is_standard_module on installed package')
+        self.assertEqual(modutils.is_standard_module('data.module', (datadir,)), True)
+        self.assertEqual(modutils.is_standard_module('data.module', (os.path.abspath(datadir),)), True)
+
+    def test_failing_edge_cases(self):
+        from xml import etree
+        # using a subpackage/submodule path as std_path argument
+        self.assertEqual(modutils.is_standard_module('xml.etree', etree.__path__), False)
+        # using a module + object name as modname argument
+        self.assertEqual(modutils.is_standard_module('sys.path'), True)
+        # this is because only the first package/module is considered
+        self.assertEqual(modutils.is_standard_module('sys.whatever'), True)
+        self.assertEqual(modutils.is_standard_module('xml.whatever', etree.__path__), False)
+
+
+class IsRelativeTest(unittest.TestCase):
+
+
+    def test_knownValues_is_relative_1(self):
+        import email
+        self.assertEqual(modutils.is_relative('utils', email.__path__[0]),
+                         True)
+
+    def test_knownValues_is_relative_2(self):
+        from xml.etree import ElementTree
+        self.assertEqual(modutils.is_relative('ElementPath', ElementTree.__file__),
+                         True)
+
+    def test_knownValues_is_relative_3(self):
+        import astroid
+        self.assertEqual(modutils.is_relative('astroid', astroid.__path__[0]),
+                         False)
+
+
+class GetModuleFilesTest(unittest.TestCase):
+
+    def test_get_module_files_1(self):
+        package = resources.find('data/find_test')
+        modules = set(modutils.get_module_files(package, []))
+        expected = ['__init__.py', 'module.py', 'module2.py',
+                    'noendingnewline.py', 'nonregr.py']
+        self.assertEqual(modules,
+                         {os.path.join(package, x) for x in expected})
+
+    def test_get_all_files(self):
+        """test that list_all returns all Python files from given location
+        """
+        non_package = resources.find('data/notamodule')
+        modules = modutils.get_module_files(non_package, [], list_all=True)
+        self.assertEqual(
+            modules,
+            [os.path.join(non_package, 'file.py')],
+        )
+
+    def test_load_module_set_attribute(self):
+        import xml.etree.ElementTree
+        import xml
+        del xml.etree.ElementTree
+        del sys.modules['xml.etree.ElementTree']
+        m = modutils.load_module_from_modpath(['xml', 'etree', 'ElementTree'])
+        self.assertTrue(hasattr(xml, 'etree'))
+        self.assertTrue(hasattr(xml.etree, 'ElementTree'))
+        self.assertTrue(m is xml.etree.ElementTree)
+
+
+if __name__ == '__main__':
+    unittest.main()