initial import of the packaging package in the standard library

Lib/packaging/tests/test_util.py

@@ -0,0 +1,928 @@
+"""Tests for packaging.util."""
+import os
+import sys
+import time
+import logging
+import tempfile
+import subprocess
+from io import StringIO
+
+from packaging.tests import support, unittest
+from packaging.errors import (
+    PackagingPlatformError, PackagingByteCompileError, PackagingFileError,
+    PackagingExecError, InstallationException)
+from packaging import util
+from packaging.util import (
+    convert_path, change_root, split_quoted, strtobool, rfc822_escape,
+    get_compiler_versions, _MAC_OS_X_LD_VERSION, byte_compile, find_packages,
+    spawn, get_pypirc_path, generate_pypirc, read_pypirc, resolve_name, iglob,
+    RICH_GLOB, egginfo_to_distinfo, is_setuptools, is_distutils, is_packaging,
+    get_install_method)
+
+
+PYPIRC = """\
+[distutils]
+index-servers =
+    pypi
+    server1
+
+[pypi]
+username:me
+password:xxxx
+
+[server1]
+repository:http://example.com
+username:tarek
+password:secret
+"""
+
+PYPIRC_OLD = """\
+[server-login]
+username:tarek
+password:secret
+"""
+
+WANTED = """\
+[distutils]
+index-servers =
+    pypi
+
+[pypi]
+username:tarek
+password:xxx
+"""
+
+
+class FakePopen:
+    test_class = None
+
+    def __init__(self, cmd, shell, stdout, stderr):
+        self.cmd = cmd.split()[0]
+        exes = self.test_class._exes
+        if self.cmd not in exes:
+            # we don't want to call the system, returning an empty
+            # output so it doesn't match
+            self.stdout = StringIO()
+            self.stderr = StringIO()
+        else:
+            self.stdout = StringIO(exes[self.cmd])
+            self.stderr = StringIO()
+
+
+class UtilTestCase(support.EnvironRestorer,
+                   support.TempdirManager,
+                   support.LoggingCatcher,
+                   unittest.TestCase):
+
+    restore_environ = ['HOME']
+
+    def setUp(self):
+        super(UtilTestCase, self).setUp()
+        self.tmp_dir = self.mkdtemp()
+        self.rc = os.path.join(self.tmp_dir, '.pypirc')
+        os.environ['HOME'] = self.tmp_dir
+        # saving the environment
+        self.name = os.name
+        self.platform = sys.platform
+        self.version = sys.version
+        self.sep = os.sep
+        self.join = os.path.join
+        self.isabs = os.path.isabs
+        self.splitdrive = os.path.splitdrive
+        #self._config_vars = copy(sysconfig._config_vars)
+
+        # patching os.uname
+        if hasattr(os, 'uname'):
+            self.uname = os.uname
+            self._uname = os.uname()
+        else:
+            self.uname = None
+            self._uname = None
+        os.uname = self._get_uname
+
+        # patching POpen
+        self.old_find_executable = util.find_executable
+        util.find_executable = self._find_executable
+        self._exes = {}
+        self.old_popen = subprocess.Popen
+        self.old_stdout = sys.stdout
+        self.old_stderr = sys.stderr
+        FakePopen.test_class = self
+        subprocess.Popen = FakePopen
+
+    def tearDown(self):
+        # getting back the environment
+        os.name = self.name
+        sys.platform = self.platform
+        sys.version = self.version
+        os.sep = self.sep
+        os.path.join = self.join
+        os.path.isabs = self.isabs
+        os.path.splitdrive = self.splitdrive
+        if self.uname is not None:
+            os.uname = self.uname
+        else:
+            del os.uname
+        #sysconfig._config_vars = copy(self._config_vars)
+        util.find_executable = self.old_find_executable
+        subprocess.Popen = self.old_popen
+        sys.old_stdout = self.old_stdout
+        sys.old_stderr = self.old_stderr
+        super(UtilTestCase, self).tearDown()
+
+    def _set_uname(self, uname):
+        self._uname = uname
+
+    def _get_uname(self):
+        return self._uname
+
+    def test_convert_path(self):
+        # linux/mac
+        os.sep = '/'
+
+        def _join(path):
+            return '/'.join(path)
+        os.path.join = _join
+
+        self.assertEqual(convert_path('/home/to/my/stuff'),
+                         '/home/to/my/stuff')
+
+        # win
+        os.sep = '\\'
+
+        def _join(*path):
+            return '\\'.join(path)
+        os.path.join = _join
+
+        self.assertRaises(ValueError, convert_path, '/home/to/my/stuff')
+        self.assertRaises(ValueError, convert_path, 'home/to/my/stuff/')
+
+        self.assertEqual(convert_path('home/to/my/stuff'),
+                         'home\\to\\my\\stuff')
+        self.assertEqual(convert_path('.'),
+                         os.curdir)
+
+    def test_change_root(self):
+        # linux/mac
+        os.name = 'posix'
+
+        def _isabs(path):
+            return path[0] == '/'
+        os.path.isabs = _isabs
+
+        def _join(*path):
+            return '/'.join(path)
+        os.path.join = _join
+
+        self.assertEqual(change_root('/root', '/old/its/here'),
+                         '/root/old/its/here')
+        self.assertEqual(change_root('/root', 'its/here'),
+                         '/root/its/here')
+
+        # windows
+        os.name = 'nt'
+
+        def _isabs(path):
+            return path.startswith('c:\\')
+        os.path.isabs = _isabs
+
+        def _splitdrive(path):
+            if path.startswith('c:'):
+                return '', path.replace('c:', '')
+            return '', path
+        os.path.splitdrive = _splitdrive
+
+        def _join(*path):
+            return '\\'.join(path)
+        os.path.join = _join
+
+        self.assertEqual(change_root('c:\\root', 'c:\\old\\its\\here'),
+                         'c:\\root\\old\\its\\here')
+        self.assertEqual(change_root('c:\\root', 'its\\here'),
+                         'c:\\root\\its\\here')
+
+        # BugsBunny os (it's a great os)
+        os.name = 'BugsBunny'
+        self.assertRaises(PackagingPlatformError,
+                          change_root, 'c:\\root', 'its\\here')
+
+        # XXX platforms to be covered: os2, mac
+
+    def test_split_quoted(self):
+        self.assertEqual(split_quoted('""one"" "two" \'three\' \\four'),
+                         ['one', 'two', 'three', 'four'])
+
+    def test_strtobool(self):
+        yes = ('y', 'Y', 'yes', 'True', 't', 'true', 'True', 'On', 'on', '1')
+        no = ('n', 'no', 'f', 'false', 'off', '0', 'Off', 'No', 'N')
+
+        for y in yes:
+            self.assertTrue(strtobool(y))
+
+        for n in no:
+            self.assertFalse(strtobool(n))
+
+    def test_rfc822_escape(self):
+        header = 'I am a\npoor\nlonesome\nheader\n'
+        res = rfc822_escape(header)
+        wanted = ('I am a%(8s)spoor%(8s)slonesome%(8s)s'
+                  'header%(8s)s') % {'8s': '\n' + 8 * ' '}
+        self.assertEqual(res, wanted)
+
+    def test_find_exe_version(self):
+        # the ld version scheme under MAC OS is:
+        #   ^@(#)PROGRAM:ld  PROJECT:ld64-VERSION
+        #
+        # where VERSION is a 2-digit number for major
+        # revisions. For instance under Leopard, it's
+        # currently 77
+        #
+        # Dots are used when branching is done.
+        #
+        # The SnowLeopard ld64 is currently 95.2.12
+
+        for output, version in (('@(#)PROGRAM:ld  PROJECT:ld64-77', '77'),
+                                ('@(#)PROGRAM:ld  PROJECT:ld64-95.2.12',
+                                 '95.2.12')):
+            result = _MAC_OS_X_LD_VERSION.search(output)
+            self.assertEqual(result.group(1), version)
+
+    def _find_executable(self, name):
+        if name in self._exes:
+            return name
+        return None
+
+    def test_get_compiler_versions(self):
+        # get_versions calls distutils.spawn.find_executable on
+        # 'gcc', 'ld' and 'dllwrap'
+        self.assertEqual(get_compiler_versions(), (None, None, None))
+
+        # Let's fake we have 'gcc' and it returns '3.4.5'
+        self._exes['gcc'] = 'gcc (GCC) 3.4.5 (mingw special)\nFSF'
+        res = get_compiler_versions()
+        self.assertEqual(str(res[0]), '3.4.5')
+
+        # and let's see what happens when the version
+        # doesn't match the regular expression
+        # (\d+\.\d+(\.\d+)*)
+        self._exes['gcc'] = 'very strange output'
+        res = get_compiler_versions()
+        self.assertEqual(res[0], None)
+
+        # same thing for ld
+        if sys.platform != 'darwin':
+            self._exes['ld'] = 'GNU ld version 2.17.50 20060824'
+            res = get_compiler_versions()
+            self.assertEqual(str(res[1]), '2.17.50')
+            self._exes['ld'] = '@(#)PROGRAM:ld  PROJECT:ld64-77'
+            res = get_compiler_versions()
+            self.assertEqual(res[1], None)
+        else:
+            self._exes['ld'] = 'GNU ld version 2.17.50 20060824'
+            res = get_compiler_versions()
+            self.assertEqual(res[1], None)
+            self._exes['ld'] = '@(#)PROGRAM:ld  PROJECT:ld64-77'
+            res = get_compiler_versions()
+            self.assertEqual(str(res[1]), '77')
+
+        # and dllwrap
+        self._exes['dllwrap'] = 'GNU dllwrap 2.17.50 20060824\nFSF'
+        res = get_compiler_versions()
+        self.assertEqual(str(res[2]), '2.17.50')
+        self._exes['dllwrap'] = 'Cheese Wrap'
+        res = get_compiler_versions()
+        self.assertEqual(res[2], None)
+
+    @unittest.skipUnless(hasattr(sys, 'dont_write_bytecode'),
+                         'sys.dont_write_bytecode not supported')
+    def test_dont_write_bytecode(self):
+        # makes sure byte_compile raise a PackagingError
+        # if sys.dont_write_bytecode is True
+        old_dont_write_bytecode = sys.dont_write_bytecode
+        sys.dont_write_bytecode = True
+        try:
+            self.assertRaises(PackagingByteCompileError, byte_compile, [])
+        finally:
+            sys.dont_write_bytecode = old_dont_write_bytecode
+
+    def test_newer(self):
+        self.assertRaises(PackagingFileError, util.newer, 'xxx', 'xxx')
+        self.newer_f1 = self.mktempfile()
+        time.sleep(1)
+        self.newer_f2 = self.mktempfile()
+        self.assertTrue(util.newer(self.newer_f2.name, self.newer_f1.name))
+
+    def test_find_packages(self):
+        # let's create a structure we want to scan:
+        #
+        #   pkg1
+        #     __init__
+        #     pkg2
+        #       __init__
+        #     pkg3
+        #       __init__
+        #       pkg6
+        #           __init__
+        #     pkg4    <--- not a pkg
+        #       pkg8
+        #          __init__
+        #   pkg5
+        #     __init__
+        #
+        root = self.mkdtemp()
+        pkg1 = os.path.join(root, 'pkg1')
+        os.mkdir(pkg1)
+        self.write_file(os.path.join(pkg1, '__init__.py'))
+        os.mkdir(os.path.join(pkg1, 'pkg2'))
+        self.write_file(os.path.join(pkg1, 'pkg2', '__init__.py'))
+        os.mkdir(os.path.join(pkg1, 'pkg3'))
+        self.write_file(os.path.join(pkg1, 'pkg3', '__init__.py'))
+        os.mkdir(os.path.join(pkg1, 'pkg3', 'pkg6'))
+        self.write_file(os.path.join(pkg1, 'pkg3', 'pkg6', '__init__.py'))
+        os.mkdir(os.path.join(pkg1, 'pkg4'))
+        os.mkdir(os.path.join(pkg1, 'pkg4', 'pkg8'))
+        self.write_file(os.path.join(pkg1, 'pkg4', 'pkg8', '__init__.py'))
+        pkg5 = os.path.join(root, 'pkg5')
+        os.mkdir(pkg5)
+        self.write_file(os.path.join(pkg5, '__init__.py'))
+
+        res = find_packages([root], ['pkg1.pkg2'])
+        self.assertEqual(set(res), set(['pkg1', 'pkg5', 'pkg1.pkg3',
+                                         'pkg1.pkg3.pkg6']))
+
+    def test_resolve_name(self):
+        self.assertIs(str, resolve_name('builtins.str'))
+        self.assertEqual(
+            UtilTestCase.__name__,
+            resolve_name("packaging.tests.test_util.UtilTestCase").__name__)
+        self.assertEqual(
+            UtilTestCase.test_resolve_name.__name__,
+            resolve_name("packaging.tests.test_util.UtilTestCase."
+                         "test_resolve_name").__name__)
+
+        self.assertRaises(ImportError, resolve_name,
+                          "packaging.tests.test_util.UtilTestCaseNot")
+        self.assertRaises(ImportError, resolve_name,
+                          "packaging.tests.test_util.UtilTestCase."
+                          "nonexistent_attribute")
+
+    def test_import_nested_first_time(self):
+        tmp_dir = self.mkdtemp()
+        os.makedirs(os.path.join(tmp_dir, 'a', 'b'))
+        self.write_file(os.path.join(tmp_dir, 'a', '__init__.py'), '')
+        self.write_file(os.path.join(tmp_dir, 'a', 'b', '__init__.py'), '')
+        self.write_file(os.path.join(tmp_dir, 'a', 'b', 'c.py'),
+                                    'class Foo: pass')
+
+        try:
+            sys.path.append(tmp_dir)
+            resolve_name("a.b.c.Foo")
+            # assert nothing raised
+        finally:
+            sys.path.remove(tmp_dir)
+
+    @unittest.skipIf(sys.version < '2.6', 'requires Python 2.6 or higher')
+    def test_run_2to3_on_code(self):
+        content = "print 'test'"
+        converted_content = "print('test')"
+        file_handle = self.mktempfile()
+        file_name = file_handle.name
+        file_handle.write(content)
+        file_handle.flush()
+        file_handle.seek(0)
+        from packaging.util import run_2to3
+        run_2to3([file_name])
+        new_content = "".join(file_handle.read())
+        file_handle.close()
+        self.assertEqual(new_content, converted_content)
+
+    @unittest.skipIf(sys.version < '2.6', 'requires Python 2.6 or higher')
+    def test_run_2to3_on_doctests(self):
+        # to check if text files containing doctests only get converted.
+        content = ">>> print 'test'\ntest\n"
+        converted_content = ">>> print('test')\ntest\n\n"
+        file_handle = self.mktempfile()
+        file_name = file_handle.name
+        file_handle.write(content)
+        file_handle.flush()
+        file_handle.seek(0)
+        from packaging.util import run_2to3
+        run_2to3([file_name], doctests_only=True)
+        new_content = "".join(file_handle.readlines())
+        file_handle.close()
+        self.assertEqual(new_content, converted_content)
+
+    @unittest.skipUnless(os.name in ('nt', 'posix'),
+                         'runs only under posix or nt')
+    def test_spawn(self):
+        # Do not patch subprocess on unix because
+        # packaging.util._spawn_posix uses it
+        if os.name in 'posix':
+            subprocess.Popen = self.old_popen
+        tmpdir = self.mkdtemp()
+
+        # creating something executable
+        # through the shell that returns 1
+        if os.name == 'posix':
+            exe = os.path.join(tmpdir, 'foo.sh')
+            self.write_file(exe, '#!/bin/sh\nexit 1')
+            os.chmod(exe, 0o777)
+        else:
+            exe = os.path.join(tmpdir, 'foo.bat')
+            self.write_file(exe, 'exit 1')
+
+        os.chmod(exe, 0o777)
+        self.assertRaises(PackagingExecError, spawn, [exe])
+
+        # now something that works
+        if os.name == 'posix':
+            exe = os.path.join(tmpdir, 'foo.sh')
+            self.write_file(exe, '#!/bin/sh\nexit 0')
+            os.chmod(exe, 0o777)
+        else:
+            exe = os.path.join(tmpdir, 'foo.bat')
+            self.write_file(exe, 'exit 0')
+
+        os.chmod(exe, 0o777)
+        spawn([exe])  # should work without any error
+
+    def test_server_registration(self):
+        # This test makes sure we know how to:
+        # 1. handle several sections in .pypirc
+        # 2. handle the old format
+
+        # new format
+        self.write_file(self.rc, PYPIRC)
+        config = read_pypirc()
+
+        config = sorted(config.items())
+        expected = [('password', 'xxxx'), ('realm', 'pypi'),
+                    ('repository', 'http://pypi.python.org/pypi'),
+                    ('server', 'pypi'), ('username', 'me')]
+        self.assertEqual(config, expected)
+
+        # old format
+        self.write_file(self.rc, PYPIRC_OLD)
+        config = read_pypirc()
+        config = sorted(config.items())
+        expected = [('password', 'secret'), ('realm', 'pypi'),
+                    ('repository', 'http://pypi.python.org/pypi'),
+                    ('server', 'server-login'), ('username', 'tarek')]
+        self.assertEqual(config, expected)
+
+    def test_server_empty_registration(self):
+        rc = get_pypirc_path()
+        self.assertFalse(os.path.exists(rc))
+        generate_pypirc('tarek', 'xxx')
+        self.assertTrue(os.path.exists(rc))
+        with open(rc) as f:
+            content = f.read()
+        self.assertEqual(content, WANTED)
+
+
+class GlobTestCaseBase(support.TempdirManager,
+                       support.LoggingCatcher,
+                       unittest.TestCase):
+
+    def build_files_tree(self, files):
+        tempdir = self.mkdtemp()
+        for filepath in files:
+            is_dir = filepath.endswith('/')
+            filepath = os.path.join(tempdir, *filepath.split('/'))
+            if is_dir:
+                dirname = filepath
+            else:
+                dirname = os.path.dirname(filepath)
+            if dirname and not os.path.exists(dirname):
+                os.makedirs(dirname)
+            if not is_dir:
+                self.write_file(filepath, 'babar')
+        return tempdir
+
+    @staticmethod
+    def os_dependent_path(path):
+        path = path.rstrip('/').split('/')
+        return os.path.join(*path)
+
+    def clean_tree(self, spec):
+        files = []
+        for path, includes in spec.items():
+            if includes:
+                files.append(self.os_dependent_path(path))
+        return files
+
+
+class GlobTestCase(GlobTestCaseBase):
+
+    def assertGlobMatch(self, glob, spec):
+        """"""
+        tempdir = self.build_files_tree(spec)
+        expected = self.clean_tree(spec)
+        self.addCleanup(os.chdir, os.getcwd())
+        os.chdir(tempdir)
+        result = list(iglob(glob))
+        self.assertCountEqual(expected, result)
+
+    def test_regex_rich_glob(self):
+        matches = RICH_GLOB.findall(
+                                r"babar aime les {fraises} est les {huitres}")
+        self.assertEqual(["fraises", "huitres"], matches)
+
+    def test_simple_glob(self):
+        glob = '*.tp?'
+        spec = {'coucou.tpl': True,
+                 'coucou.tpj': True,
+                 'Donotwant': False}
+        self.assertGlobMatch(glob, spec)
+
+    def test_simple_glob_in_dir(self):
+        glob = 'babar/*.tp?'
+        spec = {'babar/coucou.tpl': True,
+                 'babar/coucou.tpj': True,
+                 'babar/toto.bin': False,
+                 'Donotwant': False}
+        self.assertGlobMatch(glob, spec)
+
+    def test_recursive_glob_head(self):
+        glob = '**/tip/*.t?l'
+        spec = {'babar/zaza/zuzu/tip/coucou.tpl': True,
+                 'babar/z/tip/coucou.tpl': True,
+                 'babar/tip/coucou.tpl': True,
+                 'babar/zeop/tip/babar/babar.tpl': False,
+                 'babar/z/tip/coucou.bin': False,
+                 'babar/toto.bin': False,
+                 'zozo/zuzu/tip/babar.tpl': True,
+                 'zozo/tip/babar.tpl': True,
+                 'Donotwant': False}
+        self.assertGlobMatch(glob, spec)
+
+    def test_recursive_glob_tail(self):
+        glob = 'babar/**'
+        spec = {'babar/zaza/': True,
+                'babar/zaza/zuzu/': True,
+                'babar/zaza/zuzu/babar.xml': True,
+                'babar/zaza/zuzu/toto.xml': True,
+                'babar/zaza/zuzu/toto.csv': True,
+                'babar/zaza/coucou.tpl': True,
+                'babar/bubu.tpl': True,
+                'zozo/zuzu/tip/babar.tpl': False,
+                'zozo/tip/babar.tpl': False,
+                'Donotwant': False}
+        self.assertGlobMatch(glob, spec)
+
+    def test_recursive_glob_middle(self):
+        glob = 'babar/**/tip/*.t?l'
+        spec = {'babar/zaza/zuzu/tip/coucou.tpl': True,
+                 'babar/z/tip/coucou.tpl': True,
+                 'babar/tip/coucou.tpl': True,
+                 'babar/zeop/tip/babar/babar.tpl': False,
+                 'babar/z/tip/coucou.bin': False,
+                 'babar/toto.bin': False,
+                 'zozo/zuzu/tip/babar.tpl': False,
+                 'zozo/tip/babar.tpl': False,
+                 'Donotwant': False}
+        self.assertGlobMatch(glob, spec)
+
+    def test_glob_set_tail(self):
+        glob = 'bin/*.{bin,sh,exe}'
+        spec = {'bin/babar.bin': True,
+                 'bin/zephir.sh': True,
+                 'bin/celestine.exe': True,
+                 'bin/cornelius.bat': False,
+                 'bin/cornelius.xml': False,
+                 'toto/yurg': False,
+                 'Donotwant': False}
+        self.assertGlobMatch(glob, spec)
+
+    def test_glob_set_middle(self):
+        glob = 'xml/{babar,toto}.xml'
+        spec = {'xml/babar.xml': True,
+                 'xml/toto.xml': True,
+                 'xml/babar.xslt': False,
+                 'xml/cornelius.sgml': False,
+                 'xml/zephir.xml': False,
+                 'toto/yurg.xml': False,
+                 'Donotwant': False}
+        self.assertGlobMatch(glob, spec)
+
+    def test_glob_set_head(self):
+        glob = '{xml,xslt}/babar.*'
+        spec = {'xml/babar.xml': True,
+                 'xml/toto.xml': False,
+                 'xslt/babar.xslt': True,
+                 'xslt/toto.xslt': False,
+                 'toto/yurg.xml': False,
+                 'Donotwant': False}
+        self.assertGlobMatch(glob, spec)
+
+    def test_glob_all(self):
+        glob = '{xml/*,xslt/**}/babar.xml'
+        spec = {'xml/a/babar.xml': True,
+                 'xml/b/babar.xml': True,
+                 'xml/a/c/babar.xml': False,
+                 'xslt/a/babar.xml': True,
+                 'xslt/b/babar.xml': True,
+                 'xslt/a/c/babar.xml': True,
+                 'toto/yurg.xml': False,
+                 'Donotwant': False}
+        self.assertGlobMatch(glob, spec)
+
+    def test_invalid_glob_pattern(self):
+        invalids = [
+            'ppooa**',
+            'azzaeaz4**/',
+            '/**ddsfs',
+            '**##1e"&e',
+            'DSFb**c009',
+            '{',
+            '{aaQSDFa',
+            '}',
+            'aQSDFSaa}',
+            '{**a,',
+            ',**a}',
+            '{a**,',
+            ',b**}',
+            '{a**a,babar}',
+            '{bob,b**z}',
+        ]
+        msg = "%r is not supposed to be a valid pattern"
+        for pattern in invalids:
+            try:
+                iglob(pattern)
+            except ValueError:
+                continue
+            else:
+                self.fail(msg % pattern)
+
+
+class EggInfoToDistInfoTestCase(support.TempdirManager,
+                                support.LoggingCatcher,
+                                unittest.TestCase):
+
+    def get_metadata_file_paths(self, distinfo_path):
+        req_metadata_files = ['METADATA', 'RECORD', 'INSTALLER']
+        metadata_file_paths = []
+        for metadata_file in req_metadata_files:
+            path = os.path.join(distinfo_path, metadata_file)
+            metadata_file_paths.append(path)
+        return metadata_file_paths
+
+    def test_egginfo_to_distinfo_setuptools(self):
+        distinfo = 'hello-0.1.1-py3.3.dist-info'
+        egginfo = 'hello-0.1.1-py3.3.egg-info'
+        dirs = [egginfo]
+        files = ['hello.py', 'hello.pyc']
+        extra_metadata = ['dependency_links.txt', 'entry_points.txt',
+                          'not-zip-safe', 'PKG-INFO', 'top_level.txt',
+                          'SOURCES.txt']
+        for f in extra_metadata:
+            files.append(os.path.join(egginfo, f))
+
+        tempdir, record_file = self.build_dist_tree(files, dirs)
+        distinfo_path = os.path.join(tempdir, distinfo)
+        egginfo_path = os.path.join(tempdir, egginfo)
+        metadata_file_paths = self.get_metadata_file_paths(distinfo_path)
+
+        egginfo_to_distinfo(record_file)
+        # test that directories and files get created
+        self.assertTrue(os.path.isdir(distinfo_path))
+        self.assertTrue(os.path.isdir(egginfo_path))
+
+        for mfile in metadata_file_paths:
+            self.assertTrue(os.path.isfile(mfile))
+
+    def test_egginfo_to_distinfo_distutils(self):
+        distinfo = 'hello-0.1.1-py3.3.dist-info'
+        egginfo = 'hello-0.1.1-py3.3.egg-info'
+        # egginfo is a file in distutils which contains the metadata
+        files = ['hello.py', 'hello.pyc', egginfo]
+
+        tempdir, record_file = self.build_dist_tree(files, dirs=[])
+        distinfo_path = os.path.join(tempdir, distinfo)
+        egginfo_path = os.path.join(tempdir, egginfo)
+        metadata_file_paths = self.get_metadata_file_paths(distinfo_path)
+
+        egginfo_to_distinfo(record_file)
+        # test that directories and files get created
+        self.assertTrue(os.path.isdir(distinfo_path))
+        self.assertTrue(os.path.isfile(egginfo_path))
+
+        for mfile in metadata_file_paths:
+            self.assertTrue(os.path.isfile(mfile))
+
+    def build_dist_tree(self, files, dirs):
+        tempdir = self.mkdtemp()
+        record_file_path = os.path.join(tempdir, 'RECORD')
+        file_paths, dir_paths = ([], [])
+        for d in dirs:
+            path = os.path.join(tempdir, d)
+            os.makedirs(path)
+            dir_paths.append(path)
+        for f in files:
+            path = os.path.join(tempdir, f)
+            _f = open(path, 'w')
+            _f.write(f)
+            _f.close()
+            file_paths.append(path)
+
+        record_file = open(record_file_path, 'w')
+        for fpath in file_paths:
+            record_file.write(fpath + '\n')
+        for dpath in dir_paths:
+            record_file.write(dpath + '\n')
+        record_file.close()
+
+        return (tempdir, record_file_path)
+
+
+class PackagingLibChecks(support.TempdirManager,
+                         support.LoggingCatcher,
+                         unittest.TestCase):
+
+    def setUp(self):
+        super(PackagingLibChecks, self).setUp()
+        self._empty_dir = self.mkdtemp()
+
+    def test_empty_package_is_not_based_on_anything(self):
+        self.assertFalse(is_setuptools(self._empty_dir))
+        self.assertFalse(is_distutils(self._empty_dir))
+        self.assertFalse(is_packaging(self._empty_dir))
+
+    def test_setup_py_importing_setuptools_is_setuptools_based(self):
+        self.assertTrue(is_setuptools(self._setuptools_setup_py_pkg()))
+
+    def test_egg_info_dir_and_setup_py_is_setuptools_based(self):
+        self.assertTrue(is_setuptools(self._setuptools_egg_info_pkg()))
+
+    def test_egg_info_and_non_setuptools_setup_py_is_setuptools_based(self):
+        self.assertTrue(is_setuptools(self._egg_info_with_no_setuptools()))
+
+    def test_setup_py_not_importing_setuptools_is_not_setuptools_based(self):
+        self.assertFalse(is_setuptools(self._random_setup_py_pkg()))
+
+    def test_setup_py_importing_distutils_is_distutils_based(self):
+        self.assertTrue(is_distutils(self._distutils_setup_py_pkg()))
+
+    def test_pkg_info_file_and_setup_py_is_distutils_based(self):
+        self.assertTrue(is_distutils(self._distutils_pkg_info()))
+
+    def test_pkg_info_and_non_distutils_setup_py_is_distutils_based(self):
+        self.assertTrue(is_distutils(self._pkg_info_with_no_distutils()))
+
+    def test_setup_py_not_importing_distutils_is_not_distutils_based(self):
+        self.assertFalse(is_distutils(self._random_setup_py_pkg()))
+
+    def test_setup_cfg_with_no_metadata_section_is_not_packaging_based(self):
+        self.assertFalse(is_packaging(self._setup_cfg_with_no_metadata_pkg()))
+
+    def test_setup_cfg_with_valid_metadata_section_is_packaging_based(self):
+        self.assertTrue(is_packaging(self._valid_setup_cfg_pkg()))
+
+    def test_setup_cfg_and_invalid_setup_cfg_is_not_packaging_based(self):
+        self.assertFalse(is_packaging(self._invalid_setup_cfg_pkg()))
+
+    def test_get_install_method_with_setuptools_pkg(self):
+        path = self._setuptools_setup_py_pkg()
+        self.assertEqual("setuptools", get_install_method(path))
+
+    def test_get_install_method_with_distutils_pkg(self):
+        path = self._distutils_pkg_info()
+        self.assertEqual("distutils", get_install_method(path))
+
+    def test_get_install_method_with_packaging_pkg(self):
+        path = self._valid_setup_cfg_pkg()
+        self.assertEqual("packaging", get_install_method(path))
+
+    def test_get_install_method_with_unknown_pkg(self):
+        path = self._invalid_setup_cfg_pkg()
+        self.assertRaises(InstallationException, get_install_method, path)
+
+    def test_is_setuptools_logs_setup_py_text_found(self):
+        is_setuptools(self._setuptools_setup_py_pkg())
+        expected = ['setup.py file found', 'found setuptools text in setup.py']
+        self.assertEqual(expected, self.get_logs(logging.INFO))
+
+    def test_is_setuptools_logs_setup_py_text_not_found(self):
+        directory = self._random_setup_py_pkg()
+        is_setuptools(directory)
+        info_expected = ['setup.py file found']
+        warn_expected = ['no egg-info directory found',
+                         'no setuptools text found in setup.py']
+        self.assertEqual(info_expected, self.get_logs(logging.INFO))
+        self.assertEqual(warn_expected, self.get_logs(logging.WARN))
+
+    def test_is_setuptools_logs_egg_info_dir_found(self):
+        is_setuptools(self._setuptools_egg_info_pkg())
+        expected = ['setup.py file found', 'found egg-info directory']
+        self.assertEqual(expected, self.get_logs(logging.INFO))
+
+    def test_is_distutils_logs_setup_py_text_found(self):
+        is_distutils(self._distutils_setup_py_pkg())
+        expected = ['setup.py file found', 'found distutils text in setup.py']
+        self.assertEqual(expected, self.get_logs(logging.INFO))
+
+    def test_is_distutils_logs_setup_py_text_not_found(self):
+        directory = self._random_setup_py_pkg()
+        is_distutils(directory)
+        info_expected = ['setup.py file found']
+        warn_expected = ['no PKG-INFO file found',
+                         'no distutils text found in setup.py']
+        self.assertEqual(info_expected, self.get_logs(logging.INFO))
+        self.assertEqual(warn_expected, self.get_logs(logging.WARN))
+
+    def test_is_distutils_logs_pkg_info_file_found(self):
+        is_distutils(self._distutils_pkg_info())
+        expected = ['setup.py file found', 'PKG-INFO file found']
+        self.assertEqual(expected, self.get_logs(logging.INFO))
+
+    def test_is_packaging_logs_setup_cfg_found(self):
+        is_packaging(self._valid_setup_cfg_pkg())
+        expected = ['setup.cfg file found']
+        self.assertEqual(expected, self.get_logs(logging.INFO))
+
+    def test_is_packaging_logs_setup_cfg_not_found(self):
+        is_packaging(self._empty_dir)
+        expected = ['no setup.cfg file found']
+        self.assertEqual(expected, self.get_logs(logging.WARN))
+
+    def _write_setuptools_setup_py(self, directory):
+        self.write_file((directory, 'setup.py'),
+                "from setuptools import setup")
+
+    def _write_distutils_setup_py(self, directory):
+        self.write_file([directory, 'setup.py'],
+                "from distutils.core import setup")
+
+    def _write_packaging_setup_cfg(self, directory):
+        self.write_file([directory, 'setup.cfg'],
+                        ("[metadata]\n"
+                         "name = mypackage\n"
+                         "version = 0.1.0\n"))
+
+    def _setuptools_setup_py_pkg(self):
+        tmp = self.mkdtemp()
+        self._write_setuptools_setup_py(tmp)
+        return tmp
+
+    def _distutils_setup_py_pkg(self):
+        tmp = self.mkdtemp()
+        self._write_distutils_setup_py(tmp)
+        return tmp
+
+    def _valid_setup_cfg_pkg(self):
+        tmp = self.mkdtemp()
+        self._write_packaging_setup_cfg(tmp)
+        return tmp
+
+    def _setuptools_egg_info_pkg(self):
+        tmp = self.mkdtemp()
+        self._write_setuptools_setup_py(tmp)
+        tempfile.mkdtemp(suffix='.egg-info', dir=tmp)
+        return tmp
+
+    def _distutils_pkg_info(self):
+        tmp = self._distutils_setup_py_pkg()
+        self.write_file([tmp, 'PKG-INFO'], '')
+        return tmp
+
+    def _setup_cfg_with_no_metadata_pkg(self):
+        tmp = self.mkdtemp()
+        self.write_file([tmp, 'setup.cfg'],
+                        ("[othersection]\n"
+                         "foo = bar\n"))
+        return tmp
+
+    def _invalid_setup_cfg_pkg(self):
+        tmp = self.mkdtemp()
+        self.write_file([tmp, 'setup.cfg'],
+                        ("[metadata]\n"
+                         "name = john\n"
+                         "last_name = doe\n"))
+        return tmp
+
+    def _egg_info_with_no_setuptools(self):
+        tmp = self._random_setup_py_pkg()
+        tempfile.mkdtemp(suffix='.egg-info', dir=tmp)
+        return tmp
+
+    def _pkg_info_with_no_distutils(self):
+        tmp = self._random_setup_py_pkg()
+        self.write_file([tmp, 'PKG-INFO'], '')
+        return tmp
+
+    def _random_setup_py_pkg(self):
+        tmp = self.mkdtemp()
+        self.write_file((tmp, 'setup.py'), "from mypackage import setup")
+        return tmp
+
+
+def test_suite():
+    suite = unittest.makeSuite(UtilTestCase)
+    suite.addTest(unittest.makeSuite(GlobTestCase))
+    suite.addTest(unittest.makeSuite(EggInfoToDistInfoTestCase))
+    suite.addTest(unittest.makeSuite(PackagingLibChecks))
+    return suite
+
+
+if __name__ == "__main__":
+    unittest.main(defaultTest="test_suite")