diff --git a/Lib/test/test_enumerate.py b/Lib/test/test_enumerate.py
index 08229bf..8cebf44 100644
--- a/Lib/test/test_enumerate.py
+++ b/Lib/test/test_enumerate.py
@@ -100,7 +100,8 @@
     def test_argumentcheck(self):
         self.assertRaises(TypeError, self.enum) # no arguments
         self.assertRaises(TypeError, self.enum, 1) # wrong type (not iterable)
-        self.assertRaises(TypeError, self.enum, 'abc', 2) # too many arguments
+        self.assertRaises(TypeError, self.enum, 'abc', 'a') # wrong type
+        self.assertRaises(TypeError, self.enum, 'abc', 2, 3) # too many arguments
 
     def test_tuple_reuse(self):
         # Tests an implementation detail where tuple is reused
@@ -196,6 +197,19 @@
         self.assertEqual(rc, sys.getrefcount(r))
 
 
+class TestStart(EnumerateTestCase):
+
+    enum = lambda i: enumerate(i, start=11)
+    seq, res = 'abc', [(1, 'a'), (2, 'b'), (3, 'c')]
+
+
+class TestLongStart(EnumerateTestCase):
+
+    enum = lambda i: enumerate(i, start=sys.maxsize+1)
+    seq, res = 'abc', [(sys.maxsize+1,'a'), (sys.maxsize+2,'b'),
+                       (sys.maxsize+3,'c')]
+
+
 def test_main(verbose=None):
     testclasses = (EnumerateTestCase, SubclassTestCase, TestEmpty, TestBig,
                    TestReversed)
diff --git a/Lib/test/test_generators.py b/Lib/test/test_generators.py
index 992126f..e27eadd 100644
--- a/Lib/test/test_generators.py
+++ b/Lib/test/test_generators.py
@@ -917,6 +917,17 @@
 >>> g.gi_code is f.__code__
 True
 
+
+Test the __name__ attribute and the repr()
+
+>>> def f():
+...    yield 5
+...
+>>> g = f()
+>>> g.__name__
+'f'
+>>> repr(g)  # doctest: +ELLIPSIS
+'<f generator object at ...>'
 """
 
 # conjoin is a simple backtracking generator, named in honor of Icon's
diff --git a/Lib/test/test_genexps.py b/Lib/test/test_genexps.py
index 46f7ab8..c8abbcc 100644
--- a/Lib/test/test_genexps.py
+++ b/Lib/test/test_genexps.py
@@ -92,7 +92,7 @@
 Verify that parenthesis are required when used as a keyword argument value
 
     >>> dict(a = (i for i in range(10))) #doctest: +ELLIPSIS
-    {'a': <generator object at ...>}
+    {'a': <<genexpr> generator object at ...>}
 
 Verify early binding for the outermost for-expression
 
diff --git a/Lib/test/test_platform.py b/Lib/test/test_platform.py
index 22307cd..fced4d0 100644
--- a/Lib/test/test_platform.py
+++ b/Lib/test/test_platform.py
@@ -1,7 +1,9 @@
+import sys
 import unittest
-from test import test_support
 import platform
 
+from test import test_support
+
 class PlatformTest(unittest.TestCase):
     def test_architecture(self):
         res = platform.architecture()
@@ -49,26 +51,35 @@
 
     def test_uname(self):
         res = platform.uname()
+        self.assert_(any(res))
 
     def test_java_ver(self):
         res = platform.java_ver()
+        if sys.platform == 'java':
+            self.assert_(all(res))
 
     def test_win32_ver(self):
         res = platform.win32_ver()
 
     def test_mac_ver(self):
         res = platform.mac_ver()
+        try:
+            import gestalt
+        except ImportError: pass
+        else:
+            if sys.platform == 'darwin':
+                self.assert_(all(res))
 
     def test_dist(self):
         res = platform.dist()
 
     def test_libc_ver(self):
-        from sys import executable
         import os
-        if os.path.isdir(executable) and os.path.exists(executable+'.exe'):
+        if os.path.isdir(sys.executable) and \
+           os.path.exists(sys.executable+'.exe'):
             # Cygwin horror
             executable = executable + '.exe'
-        res = platform.libc_ver(executable)
+        res = platform.libc_ver(sys.executable)
 
 def test_main():
     test_support.run_unittest(
diff --git a/Lib/test/test_site.py b/Lib/test/test_site.py
index 329df4b..a13751c 100644
--- a/Lib/test/test_site.py
+++ b/Lib/test/test_site.py
@@ -36,7 +36,7 @@
         """Save a copy of sys.path"""
         self.sys_path = sys.path[:]
 
-
+    def tearDown(self):
         """Restore sys.path"""
         sys.path = self.sys_path
 
@@ -256,13 +256,8 @@
             else:
                 self.fail("sitecustomize not imported automatically")
 
-
-
-
 def test_main():
     run_unittest(HelperFunctionsTests, ImportSideEffectTests)
 
-
-
 if __name__ == "__main__":
     test_main()
diff --git a/Lib/test/test_warnings.py b/Lib/test/test_warnings.py
index fa2297c..7b512ef 100644
--- a/Lib/test/test_warnings.py
+++ b/Lib/test/test_warnings.py
@@ -396,6 +396,7 @@
             self.assertRaises(TypeError, self.module.warn, "Warning!")
         finally:
             self.module.showwarning = old_showwarning
+            self.module.resetwarnings()
 
     def test_show_warning_output(self):
         # With showarning() missing, make sure that output is okay.