Moar resource leak patchage.

src/ZODB/tests/testFileStorage.py

@@ -234,7 +234,7 @@ class FileStorageTests(
         self.open()
 
         # Open .fs directly, and damage content.
-        f = open('FileStorageTests.fs', 'r+b')
+        with open('FileStorageTests.fs', 'r+b') as f:
             f.seek(0, 2)
             pos2 = f.tell() - 8
             f.seek(pos2)
@@ -247,7 +247,6 @@ class FileStorageTests(
             # Now damage the second copy.
             f.seek(pos2)
             f.write(p64(tlen2 - 1))
-        f.close()
 
         # Try to pack.  This used to yield
         #     NameError: global name 's' is not defined

src/ZODB/tests/testZODB.py

@@ -71,14 +71,13 @@ class ZODBTests(ZODB.tests.util.TestCase):
         assert len(ob) > 10, 'Insufficient test data'
         try:
             import tempfile
-            f = tempfile.TemporaryFile()
+            with tempfile.TemporaryFile(prefix="DUP") as f:
                 ob._p_jar.exportFile(ob._p_oid, f)
                 assert f.tell() > 0, 'Did not export correctly'
                 f.seek(0)
                 new_ob = ob._p_jar.importFile(f)
                 self.assertEqual(new_ob, ob)
                 root['dup'] = new_ob
-            f.close()
             if abort_it:
                 transaction.abort()
             else: