bpo-33752: Fix a file leak in test_dbm. (GH-7376)

serhiy-storchaka · web-flow · commit 6592d7fe1147 · 2018-06-05T16:03:00.000+03:00
With addCleanup() f.close() was executed after tearDown().
diff --git a/Lib/test/test_dbm.py b/Lib/test/test_dbm.py
@@ -75,10 +75,8 @@ def test_anydbm_creation(self):
     def test_anydbm_creation_n_file_exists_with_invalid_contents(self):
         # create an empty file
         test.support.create_empty_file(_fname)
-
-        f = dbm.open(_fname, 'n')
-        self.addCleanup(f.close)
-        self.assertEqual(len(f), 0)
+        with dbm.open(_fname, 'n') as f:
+            self.assertEqual(len(f), 0)
 
     def test_anydbm_modification(self):
         self.init_db()
