Cleanups in distutils tests.

- Actually check the contents of the file created by bdist_dumb.
- Don’t use “RECORD” as filename for non-PEP 376 record file
- Don’t start method name with “_test”, it smells like a disabled test
  method instead of an helper method
- Fix some idioms (assertIn, addCleanup)

Lib/distutils/tests/test_bdist_dumb.py

 """Tests for distutils.command.bdist_dumb."""
 
-import unittest
-import sys
 import os
+import imp
+import sys
+import zipfile
+import unittest
 from test.support import run_unittest
 
 from distutils.core import Distribution
@@ -72,15 +74,24 @@ class BuildDumbTestCase(support.TempdirManager,
 
         # see what we have
         dist_created = os.listdir(os.path.join(pkg_dir, 'dist'))
-        base = "%s.%s" % (dist.get_fullname(), cmd.plat_name)
+        base = "%s.%s.zip" % (dist.get_fullname(), cmd.plat_name)
         if os.name == 'os2':
             base = base.replace(':', '-')
 
-        wanted = ['%s.zip' % base]
-        self.assertEqual(dist_created, wanted)
+        self.assertEqual(dist_created, [base])
 
         # now let's check what we have in the zip file
-        # XXX to be done
+        fp = zipfile.ZipFile(os.path.join('dist', base))
+        try:
+            contents = fp.namelist()
+        finally:
+            fp.close()
+
+        contents = sorted(os.path.basename(fn) for fn in contents)
+        wanted = ['foo-0.1-py%s.%s.egg-info' % sys.version_info[:2],
+                  'foo.%s.pyc' % imp.get_tag(),
+                  'foo.py']
+        self.assertEqual(contents, sorted(wanted))
 
 def test_suite():
     return unittest.makeSuite(BuildDumbTestCase)

Lib/distutils/tests/test_install.py

@@ -87,19 +87,17 @@ class InstallTestCase(support.TempdirManager,
         self.old_expand = os.path.expanduser
         os.path.expanduser = _expanduser
 
-        try:
-            # this is the actual test
-            self._test_user_site()
-        finally:
+        def cleanup():
             site.USER_BASE = self.old_user_base
             site.USER_SITE = self.old_user_site
             install_module.USER_BASE = self.old_user_base
             install_module.USER_SITE = self.old_user_site
             os.path.expanduser = self.old_expand
 
-    def _test_user_site(self):
+        self.addCleanup(cleanup)
+
         for key in ('nt_user', 'unix_user', 'os2_home'):
-            self.assertTrue(key in INSTALL_SCHEMES)
+            self.assertIn(key, INSTALL_SCHEMES)
 
         dist = Distribution({'name': 'xx'})
         cmd = install(dist)
@@ -107,14 +105,14 @@ class InstallTestCase(support.TempdirManager,
         # making sure the user option is there
         options = [name for name, short, lable in
                    cmd.user_options]
-        self.assertTrue('user' in options)
+        self.assertIn('user', options)
 
         # setting a value
         cmd.user = 1
 
         # user base and site shouldn't be created yet
-        self.assertTrue(not os.path.exists(self.user_base))
-        self.assertTrue(not os.path.exists(self.user_site))
+        self.assertFalse(os.path.exists(self.user_base))
+        self.assertFalse(os.path.exists(self.user_site))
 
         # let's run finalize
         cmd.ensure_finalized()
@@ -123,8 +121,8 @@ class InstallTestCase(support.TempdirManager,
         self.assertTrue(os.path.exists(self.user_base))
         self.assertTrue(os.path.exists(self.user_site))
 
-        self.assertTrue('userbase' in cmd.config_vars)
-        self.assertTrue('usersite' in cmd.config_vars)
+        self.assertIn('userbase', cmd.config_vars)
+        self.assertIn('usersite', cmd.config_vars)
 
     def test_handle_extra_path(self):
         dist = Distribution({'name': 'xx', 'extra_path': 'path,dirs'})
@@ -178,14 +176,13 @@ class InstallTestCase(support.TempdirManager,
     def test_record(self):
         install_dir = self.mkdtemp()
         project_dir, dist = self.create_dist(scripts=['hello'])
-        self.addCleanup(os.chdir, os.getcwd())
         os.chdir(project_dir)
         self.write_file('hello', "print('o hai')")
 
         cmd = install(dist)
         dist.command_obj['install'] = cmd
         cmd.root = install_dir
-        cmd.record = os.path.join(project_dir, 'RECORD')
+        cmd.record = os.path.join(project_dir, 'filelist')
         cmd.ensure_finalized()
         cmd.run()
 
@@ -204,7 +201,6 @@ class InstallTestCase(support.TempdirManager,
         install_dir = self.mkdtemp()
         project_dir, dist = self.create_dist(ext_modules=[
             Extension('xx', ['xxmodule.c'])])
-        self.addCleanup(os.chdir, os.getcwd())
         os.chdir(project_dir)
         support.copy_xxmodule_c(project_dir)
 
@@ -216,7 +212,7 @@ class InstallTestCase(support.TempdirManager,
         dist.command_obj['install'] = cmd
         dist.command_obj['build_ext'] = buildextcmd
         cmd.root = install_dir
-        cmd.record = os.path.join(project_dir, 'RECORD')
+        cmd.record = os.path.join(project_dir, 'filelist')
         cmd.ensure_finalized()
         cmd.run()
 

Lib/distutils/tests/test_sdist.py

@@ -288,7 +288,7 @@ class SDistTestCase(PyPIRCCommandTestCase):
     # the following tests make sure there is a nice error message instead
     # of a traceback when parsing an invalid manifest template
 
-    def _test_template(self, content):
+    def _check_template(self, content):
         dist, cmd = self.get_cmd()
         os.chdir(self.tmp_dir)
         self.write_file('MANIFEST.in', content)
@@ -299,17 +299,17 @@ class SDistTestCase(PyPIRCCommandTestCase):
         self.assertEqual(len(warnings), 1)
 
     def test_invalid_template_unknown_command(self):
-        self._test_template('taunt knights *')
+        self._check_template('taunt knights *')
 
     def test_invalid_template_wrong_arguments(self):
         # this manifest command takes one argument
-        self._test_template('prune')
+        self._check_template('prune')
 
     @unittest.skipIf(os.name != 'nt', 'test relevant for Windows only')
     def test_invalid_template_wrong_path(self):
         # on Windows, trailing slashes are not allowed
         # this used to crash instead of raising a warning: #8286
-        self._test_template('include examples/')
+        self._check_template('include examples/')
 
     @unittest.skipUnless(ZLIB_SUPPORT, 'Need zlib support to run')
     def test_get_file_list(self):