/thirdparty/breakpad/third_party/protobuf/protobuf/src/google/protobuf/compiler/java/java_plugin_unittest.cc

  1// Protocol Buffers - Google's data interchange format
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 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/java/java_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 java {
 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    string filename = "Test.java";
 62    TryInsert(filename, "outer_class_scope", context);
 63    TryInsert(filename, "class_scope:foo.Bar", context);
 64    TryInsert(filename, "class_scope:foo.Bar.Baz", context);
 65    TryInsert(filename, "builder_scope:foo.Bar", context);
 66    TryInsert(filename, "builder_scope:foo.Bar.Baz", context);
 67    TryInsert(filename, "enum_scope:foo.Qux", context);
 68    return true;
 69  }
 70
 71  void TryInsert(const string& filename, const string& insertion_point,
 72                 GeneratorContext* context) const {
 73    scoped_ptr<io::ZeroCopyOutputStream> output(
 74      context->OpenForInsert(filename, insertion_point));
 75    io::Printer printer(output.get(), '$');
 76    printer.Print("// inserted $name$\n", "name", insertion_point);
 77  }
 78};
 79
 80// This test verifies that all the expected insertion points exist.  It does
 81// not verify that they are correctly-placed; that would require actually
 82// compiling the output which is a bit more than I care to do for this test.
 83TEST(JavaPluginTest, PluginTest) {
 84  File::WriteStringToFileOrDie(
 85      "syntax = \"proto2\";\n"
 86      "package foo;\n"
 87      "option java_package = \"\";\n"
 88      "option java_outer_classname = \"Test\";\n"
 89      "message Bar {\n"
 90      "  message Baz {}\n"
 91      "}\n"
 92      "enum Qux { BLAH = 1; }\n",
 93      TestTempDir() + "/test.proto");
 94
 95  google::protobuf::compiler::CommandLineInterface cli;
 96  cli.SetInputsAreProtoPathRelative(true);
 97
 98  JavaGenerator java_generator;
 99  TestGenerator test_generator;
100  cli.RegisterGenerator("--java_out", &java_generator, "");
101  cli.RegisterGenerator("--test_out", &test_generator, "");
102
103  string proto_path = "-I" + TestTempDir();
104  string java_out = "--java_out=" + TestTempDir();
105  string test_out = "--test_out=" + TestTempDir();
106
107  const char* argv[] = {
108    "protoc",
109    proto_path.c_str(),
110    java_out.c_str(),
111    test_out.c_str(),
112    "test.proto"
113  };
114
115  EXPECT_EQ(0, cli.Run(5, argv));
116}
117
118}  // namespace
119}  // namespace java
120}  // namespace compiler
121}  // namespace protobuf
122}  // namespace google