text: // Protocol Buffers - Google's data interchange format
  // Copyright 2008 Google Inc.  All rights reserved.
  // https://developers.google.com/protocol-buffers/
  //
  // Redistribution and use in source and binary forms, with or without
  // modification, are permitted provided that the following conditions are
  // met:
  //
  //     * Redistributions of source code must retain the above copyright
  // notice, this list of conditions and the following disclaimer.
  //     * Redistributions in binary form must reproduce the above
  // copyright notice, this list of conditions and the following disclaimer
  // in the documentation and/or other materials provided with the
  // distribution.
  //     * Neither the name of Google Inc. nor the names of its
  // contributors may be used to endorse or promote products derived from
  // this software without specific prior written permission.
  //
  // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
  // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
  // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
  // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  
  syntax = "proto3";
  
  package proto3_preserve_unknown_enum_unittest;
  option objc_class_prefix = "UnknownEnums";
  
  option csharp_namespace = "Google.Protobuf.TestProtos";
  
  enum MyEnum {
    FOO = 0;
    BAR = 1;
    BAZ = 2;
  }
  
  enum MyEnumPlusExtra {
    E_FOO = 0;
    E_BAR = 1;
    E_BAZ = 2;
    E_EXTRA = 3;
  }
  
  message MyMessage {
    MyEnum e = 1;
    repeated MyEnum repeated_e = 2;
    repeated MyEnum repeated_packed_e = 3 [packed=true];
    repeated MyEnumPlusExtra repeated_packed_unexpected_e = 4;  // not packed
    oneof o {
      MyEnum oneof_e_1 = 5;
      MyEnum oneof_e_2 = 6;
    }
  }
  
  message MyMessagePlusExtra {
    MyEnumPlusExtra e = 1;
    repeated MyEnumPlusExtra repeated_e = 2;
    repeated MyEnumPlusExtra repeated_packed_e = 3 [packed=true];
    repeated MyEnumPlusExtra repeated_packed_unexpected_e = 4 [packed=true];
    oneof o {
      MyEnumPlusExtra oneof_e_1 = 5;
      MyEnumPlusExtra oneof_e_2 = 6;
    }
  }
  