text: #pragma once
  
  #include "envoy/protobuf/message_validator.h"
  
  #include "gmock/gmock.h"
  
  namespace Envoy {
  namespace ProtobufMessage {
  
  class MockValidationVisitor : public ValidationVisitor {
  public:
    MockValidationVisitor();
    ~MockValidationVisitor() override;
  
    MOCK_METHOD1(onUnknownField, void(absl::string_view));
  };
  
  } // namespace ProtobufMessage
  } // namespace Envoy
  