TLSv1.2 versions of MaxFragmentNull probe

prober.py

@@ -105,6 +105,8 @@
     SecureRenegoNull12(),
     SecureRenegoNull12PFS(),
     MaxFragmentNull(),
+    MaxFragmentNull12(),
+    MaxFragmentNull12PFS(),
     MaxFragmentInvalid(),
     ClientCertURLsNotNull(),
     TrustedCANull(),

probes.py

@@ -1130,6 +1130,16 @@ def test(self, sock):
         sock.write(self.make_fragment_hello(''))
 
 
+class MaxFragmentNull12(MaxFragmentNull, NormalHandshake12):
+    '''As with MaxFragmentNull, but in TLSv1.2 hello'''
+    pass
+
+
+class MaxFragmentNull12PFS(MaxFragmentNull, NormalHandshake12PFS):
+    '''As with MaxFragmentNull, but in PFS TLSv1.2 hello'''
+    pass
+
+
 class MaxFragmentInvalid(MaxFragmentNull):
     '''Send maximum fragment length extension with invalid value'''
 

tests/test_probes.py

@@ -1600,6 +1600,47 @@ def test_test(self):
                           b'\x00\x01\x00\x00'])
 
 
+class TestMaxFragmentNull12(unittest.TestCase):
+    def test_test(self):
+        probe = MaxFragmentNull12()
+        sock = MockSock()
+
+        probe.test(sock)
+
+        self.assertEqual(sock.sent_data,
+                         [b'\x16\x03\x01\x00W'
+                          b'\x01\x00\x00S'
+                          b'\x03\x03' +
+                          RANDOM_STR +
+                          b'\x00'
+                          b'\x00&' +
+                          DEFAULT_12_CIPHERS_STR +
+                          b'\x01\x00'
+                          b'\x00\x04'
+                          b'\x00\x01\x00\x00'])
+
+
+class TestMaxFragmentNull12PFS(unittest.TestCase):
+    def test_test(self):
+        probe = MaxFragmentNull12PFS()
+        sock = MockSock()
+
+        probe.test(sock)
+
+        self.maxDiff = None
+        self.assertEqual(sock.sent_data,
+                         [b"\x16\x03\x01\x00\x8f"
+                          b"\x01\x00\x00\x8b"
+                          b"\x03\x03" +
+                          RANDOM_STR +
+                          b"\x00"
+                          b"\x00^" +
+                          DEFAULT_PFS_CIPHERS_STR +
+                          b"\x01\x00"
+                          b'\x00\x04'
+                          b'\x00\x01\x00\x00'])
+
+
 class TestMaxFragmentInvalid(unittest.TestCase):
     def test_test(self):
         probe = MaxFragmentInvalid()