1// Protocol Buffers - Google's data interchange format 2// Copyright 2008 Google Inc. All rights reserved. 3// http://code.google.com/p/protobuf/ 4// 5// Redistribution and use in source and binary forms, with or without 6// modification, are permitted provided that the following conditions are 7// met: 8// 9// * Redistributions of source code must retain the above copyright 10// notice, this list of conditions and the following disclaimer. 11// * Redistributions in binary form must reproduce the above 12// copyright notice, this list of conditions and the following disclaimer 13// in the documentation and/or other materials provided with the 14// distribution. 15// * Neither the name of Google Inc. nor the names of its 16// contributors may be used to endorse or promote products derived from 17// this software without specific prior written permission. 18// 19// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 20// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 21// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 22// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 23// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 24// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 25// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 26// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 27// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 28// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 29// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 30 31// Author: kenton@google.com (Kenton Varda) 32// 33// TODO(kenton): Share code with the versions of this test in other languages? 34// It seemed like parameterizing it would add more complexity than it is 35// worth. 36 37#include <google/protobuf/compiler/cpp/cpp_generator.h> 38#include <google/protobuf/compiler/command_line_interface.h> 39#include <google/protobuf/io/zero_copy_stream.h> 40#include <google/protobuf/io/printer.h> 41 42#include <google/protobuf/testing/googletest.h> 43#include <gtest/gtest.h> 44#include <google/protobuf/testing/file.h> 45 46namespace google { 47namespace protobuf { 48namespace compiler { 49namespace cpp { 50namespace { 51 52class TestGenerator : public CodeGenerator { 53 public: 54 TestGenerator() {} 55 ~TestGenerator() {} 56 57 virtual bool Generate(const FileDescriptor* file, 58 const string& parameter, 59 GeneratorContext* context, 60 string* error) const { 61 TryInsert("test.pb.h", "includes", context); 62 TryInsert("test.pb.h", "namespace_scope", context); 63 TryInsert("test.pb.h", "global_scope", context); 64 TryInsert("test.pb.h", "class_scope:foo.Bar", context); 65 TryInsert("test.pb.h", "class_scope:foo.Bar.Baz", context); 66 67 TryInsert("test.pb.cc", "includes", context); 68 TryInsert("test.pb.cc", "namespace_scope", context); 69 TryInsert("test.pb.cc", "global_scope", context); 70 return true; 71 } 72 73 void TryInsert(const string& filename, const string& insertion_point, 74 GeneratorContext* context) const { 75 scoped_ptr<io::ZeroCopyOutputStream> output( 76 context->OpenForInsert(filename, insertion_point)); 77 io::Printer printer(output.get(), '$'); 78 printer.Print("// inserted $name$\n", "name", insertion_point); 79 } 80}; 81 82// This test verifies that all the expected insertion points exist. It does 83// not verify that they are correctly-placed; that would require actually 84// compiling the output which is a bit more than I care to do for this test. 85TEST(CppPluginTest, PluginTest) { 86 File::WriteStringToFileOrDie( 87 "syntax = \"proto2\";\n" 88 "package foo;\n" 89 "message Bar {\n" 90 " message Baz {}\n" 91 "}\n", 92 TestTempDir() + "/test.proto"); 93 94 google::protobuf::compiler::CommandLineInterface cli; 95 cli.SetInputsAreProtoPathRelative(true); 96 97 CppGenerator cpp_generator; 98 TestGenerator test_generator; 99 cli.RegisterGenerator("--cpp_out", &cpp_generator, ""); 100 cli.RegisterGenerator("--test_out", &test_generator, ""); 101 102 string proto_path = "-I" + TestTempDir(); 103 string cpp_out = "--cpp_out=" + TestTempDir(); 104 string test_out = "--test_out=" + TestTempDir(); 105 106 const char* argv[] = { 107 "protoc", 108 proto_path.c_str(), 109 cpp_out.c_str(), 110 test_out.c_str(), 111 "test.proto" 112 }; 113 114 EXPECT_EQ(0, cli.Run(5, argv)); 115} 116 117} // namespace 118} // namespace cpp 119} // namespace compiler 120} // namespace protobuf 121} // namespace google 122