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/thirdparty/breakpad/third_party/protobuf/protobuf/src/google/protobuf/compiler/python/python_plugin_unittest.cc

http://github.com/tomahawk-player/tomahawk
C++ | 116 lines | 65 code | 14 blank | 37 comment | 0 complexity | 603bdaeefba590a28c80cca1867e181d MD5 | raw file
  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/python/python_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 python {
 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_pb2.py", "imports", context);
 62    TryInsert("test_pb2.py", "module_scope", context);
 63    TryInsert("test_pb2.py", "class_scope:foo.Bar", context);
 64    TryInsert("test_pb2.py", "class_scope:foo.Bar.Baz", context);
 65    return true;
 66  }
 67
 68  void TryInsert(const string& filename, const string& insertion_point,
 69                 GeneratorContext* context) const {
 70    scoped_ptr<io::ZeroCopyOutputStream> output(
 71      context->OpenForInsert(filename, insertion_point));
 72    io::Printer printer(output.get(), '$');
 73    printer.Print("// inserted $name$\n", "name", insertion_point);
 74  }
 75};
 76
 77// This test verifies that all the expected insertion points exist.  It does
 78// not verify that they are correctly-placed; that would require actually
 79// compiling the output which is a bit more than I care to do for this test.
 80TEST(PythonPluginTest, PluginTest) {
 81  File::WriteStringToFileOrDie(
 82      "syntax = \"proto2\";\n"
 83      "package foo;\n"
 84      "message Bar {\n"
 85      "  message Baz {}\n"
 86      "}\n",
 87      TestTempDir() + "/test.proto");
 88
 89  google::protobuf::compiler::CommandLineInterface cli;
 90  cli.SetInputsAreProtoPathRelative(true);
 91
 92  python::Generator python_generator;
 93  TestGenerator test_generator;
 94  cli.RegisterGenerator("--python_out", &python_generator, "");
 95  cli.RegisterGenerator("--test_out", &test_generator, "");
 96
 97  string proto_path = "-I" + TestTempDir();
 98  string python_out = "--python_out=" + TestTempDir();
 99  string test_out = "--test_out=" + TestTempDir();
100
101  const char* argv[] = {
102    "protoc",
103    proto_path.c_str(),
104    python_out.c_str(),
105    test_out.c_str(),
106    "test.proto"
107  };
108
109  EXPECT_EQ(0, cli.Run(5, argv));
110}
111
112}  // namespace
113}  // namespace python
114}  // namespace compiler
115}  // namespace protobuf
116}  // namespace google