Tracing V2: Field number constants for protobuf plugin.

components/tracing/test/proto_zero_generation_unittest.cc

 // Copyright 2016 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "components/tracing/test/example_proto/test_messages.pbzero.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
 namespace tracing {
 namespace proto {
 
+using foo::bar::CamelCaseFields;
+
 TEST(ProtoZeroTest, Simple) {
   // TODO(kraynov) Put tests in the next CL (crbug.com/608721).
 }
 
+TEST(ProtoZeroTest, FieldNumbers) {
+  // Tests camel case conversion as well.
+  EXPECT_EQ(1, CamelCaseFields::kFooBarBazFieldNumber);
+  EXPECT_EQ(2, CamelCaseFields::kBarBazFieldNumber);
+  EXPECT_EQ(3, CamelCaseFields::kMooMooFieldNumber);
+  EXPECT_EQ(4, CamelCaseFields::kURLEncoderFieldNumber);
+  EXPECT_EQ(5, CamelCaseFields::kXMapFieldNumber);
+  EXPECT_EQ(6, CamelCaseFields::kUrLENcoDerFieldNumber);
+  EXPECT_EQ(7, CamelCaseFields::kBigBangFieldNumber);
+  EXPECT_EQ(8, CamelCaseFields::kU2FieldNumber);
+  EXPECT_EQ(9, CamelCaseFields::kBangBigFieldNumber);
+}
+
 }  // namespace proto
 }  // namespace tracing