diff -r c43362d35d8d Lib/test/test_imaplib.py
--- a/Lib/test/test_imaplib.py	Fri Jul 04 17:00:25 2014 -0700
+++ b/Lib/test/test_imaplib.py	Thu Jul 31 02:45:30 2014 +0200
@@ -22,8 +22,8 @@
 else:
     from ssl import HAS_SNI
 
-CERTFILE = None
-CAFILE = None
+CERTFILE = os.path.join(os.path.dirname(__file__) or os.curdir, "keycert3.pem")
+CAFILE = os.path.join(os.path.dirname(__file__) or os.curdir, "pycacert.pem")
 
 
 class TestImaplib(unittest.TestCase):
@@ -47,8 +47,6 @@
                             imaplib.Internaldate2tuple(
             b'25 (INTERNALDATE "02-Apr-2000 03:30:00 +0000")'))
 
-
-
     def timevalues(self):
         return [2000000000, 2000000000.0, time.localtime(2000000000),
                 (2033, 5, 18, 5, 33, 20, -1, -1, -1),
@@ -75,7 +73,6 @@
 
 
 if ssl:
-
     class SecureTCPServer(socketserver.TCPServer):
 
         def get_request(self):
@@ -351,6 +348,12 @@
     server_class = SecureTCPServer
     imap_class = IMAP4_SSL
 
+    def setUp(self):
+        self.assertTrue(os.path.exists(CERTFILE),
+                        msg="Can't read certificate file at '%s'." % CERTFILE)
+        self.assertTrue(os.path.exists(CAFILE),
+                        msg="Can't read CA file at '%s'." % CAFILE)
+
     @reap_threads
     @unittest.skipUnless(HAS_SNI, 'No SNI support in ssl module')
     def test_ssl_verified(self):
@@ -479,24 +482,11 @@
 
 
 def load_tests(*args):
-    tests = [TestImaplib]
-
-    if support.is_resource_enabled('network'):
-        if ssl:
-            global CERTFILE, CAFILE
-            CERTFILE = os.path.join(os.path.dirname(__file__) or os.curdir,
-                                    "keycert3.pem")
-            if not os.path.exists(CERTFILE):
-                raise support.TestFailed("Can't read certificate files!")
-            CAFILE = os.path.join(os.path.dirname(__file__) or os.curdir,
-                                 "pycacert.pem")
-            if not os.path.exists(CAFILE):
-                raise support.TestFailed("Can't read CA file!")
-        tests.extend([
-            ThreadedNetworkedTests, ThreadedNetworkedTestsSSL,
-            RemoteIMAPTest, RemoteIMAP_SSLTest, RemoteIMAP_STARTTLSTest,
-        ])
-
+    tests = [
+        TestImaplib,
+        ThreadedNetworkedTests, ThreadedNetworkedTestsSSL,
+        RemoteIMAPTest, RemoteIMAP_SSLTest, RemoteIMAP_STARTTLSTest,
+    ]
     return unittest.TestSuite([unittest.makeSuite(test) for test in tests])