convert usage of fail* to assert*
diff --git a/Lib/test/test_rfc822.py b/Lib/test/test_rfc822.py
index afbc984..8c2b2c6 100644
--- a/Lib/test/test_rfc822.py
+++ b/Lib/test/test_rfc822.py
@@ -16,23 +16,23 @@
     def test_get(self):
         msg = self.create_message(
             'To: "last, first" <userid@foo.net>\n\ntest\n')
-        self.assert_(msg.get("to") == '"last, first" <userid@foo.net>')
-        self.assert_(msg.get("TO") == '"last, first" <userid@foo.net>')
-        self.assert_(msg.get("No-Such-Header") is None)
-        self.assert_(msg.get("No-Such-Header", "No-Such-Value")
+        self.assertTrue(msg.get("to") == '"last, first" <userid@foo.net>')
+        self.assertTrue(msg.get("TO") == '"last, first" <userid@foo.net>')
+        self.assertTrue(msg.get("No-Such-Header") is None)
+        self.assertTrue(msg.get("No-Such-Header", "No-Such-Value")
                      == "No-Such-Value")
 
     def test_setdefault(self):
         msg = self.create_message(
             'To: "last, first" <userid@foo.net>\n\ntest\n')
-        self.assert_(not msg.has_key("New-Header"))
-        self.assert_(msg.setdefault("New-Header", "New-Value") == "New-Value")
-        self.assert_(msg.setdefault("New-Header", "Different-Value")
+        self.assertTrue(not msg.has_key("New-Header"))
+        self.assertTrue(msg.setdefault("New-Header", "New-Value") == "New-Value")
+        self.assertTrue(msg.setdefault("New-Header", "Different-Value")
                      == "New-Value")
-        self.assert_(msg["new-header"] == "New-Value")
+        self.assertTrue(msg["new-header"] == "New-Value")
 
-        self.assert_(msg.setdefault("Another-Header") == "")
-        self.assert_(msg["another-header"] == "")
+        self.assertTrue(msg.setdefault("Another-Header") == "")
+        self.assertTrue(msg["another-header"] == "")
 
     def check(self, msg, results):
         """Check addresses and the date."""