NAT: update nat_show_config_reply API (VPP-1403)

Change-Id: I85383e428cb54c4c09ab387811dd6390f7c61d97
Signed-off-by: Matus Fabian <matfabia@cisco.com>
diff --git a/test/test_nat.py b/test/test_nat.py
index 76cc733..286c74a 100644
--- a/test/test_nat.py
+++ b/test/test_nat.py
@@ -3345,6 +3345,9 @@
         self.vapi.nat44_interface_add_del_feature(self.pg1.sw_if_index,
                                                   is_inside=0)
 
+        nat_config = self.vapi.nat_show_config()
+        self.assertEqual(1, nat_config.endpoint_dependent)
+
         # in2out
         pkts = self.create_stream_in(self.pg0, self.pg1)
         self.pg0.add_stream(pkts)
@@ -4979,6 +4982,9 @@
     def test_464xlat_ce(self):
         """ Test 464XLAT CE with NAT44 """
 
+        nat_config = self.vapi.nat_show_config()
+        self.assertEqual(1, nat_config.out2in_dpo)
+
         self.configure_xlat()
 
         self.vapi.nat44_interface_add_del_feature(self.pg0.sw_if_index)
@@ -6961,6 +6967,9 @@
 
     def test_dslite(self):
         """ Test DS-Lite """
+        nat_config = self.vapi.nat_show_config()
+        self.assertEqual(0, nat_config.dslite_ce)
+
         self.vapi.dslite_add_del_pool_addr_range(self.nat_addr_n,
                                                  self.nat_addr_n)
         aftr_ip4 = '192.0.0.1'
@@ -7121,6 +7130,9 @@
     def test_dslite_ce(self):
         """ Test DS-Lite CE """
 
+        nat_config = self.vapi.nat_show_config()
+        self.assertEqual(1, nat_config.dslite_ce)
+
         b4_ip4 = '192.0.0.2'
         b4_ip4_n = socket.inet_pton(socket.AF_INET, b4_ip4)
         b4_ip6 = '2001:db8:62aa::375e:f4c1:1'