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      1 // Protocol Buffers - Google's data interchange format
      2 // Copyright 2008 Google Inc.  All rights reserved.
      3 // https://developers.google.com/protocol-buffers/
      4 //
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      7 // met:
      8 //
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     30 
     31 // Author: kenton (at) 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 <memory>
     38 #ifndef _SHARED_PTR_H
     39 #include <google/protobuf/stubs/shared_ptr.h>
     40 #endif
     41 
     42 #include <google/protobuf/compiler/java/java_generator.h>
     43 #include <google/protobuf/compiler/command_line_interface.h>
     44 #include <google/protobuf/io/zero_copy_stream.h>
     45 #include <google/protobuf/io/printer.h>
     46 
     47 #include <google/protobuf/testing/file.h>
     48 #include <google/protobuf/testing/file.h>
     49 #include <google/protobuf/testing/googletest.h>
     50 #include <gtest/gtest.h>
     51 
     52 namespace google {
     53 namespace protobuf {
     54 namespace compiler {
     55 namespace java {
     56 namespace {
     57 
     58 class TestGenerator : public CodeGenerator {
     59  public:
     60   TestGenerator() {}
     61   ~TestGenerator() {}
     62 
     63   virtual bool Generate(const FileDescriptor* file,
     64                         const string& parameter,
     65                         GeneratorContext* context,
     66                         string* error) const {
     67     string filename = "Test.java";
     68     TryInsert(filename, "outer_class_scope", context);
     69     TryInsert(filename, "class_scope:foo.Bar", context);
     70     TryInsert(filename, "class_scope:foo.Bar.Baz", context);
     71     TryInsert(filename, "builder_scope:foo.Bar", context);
     72     TryInsert(filename, "builder_scope:foo.Bar.Baz", context);
     73     TryInsert(filename, "enum_scope:foo.Qux", context);
     74     return true;
     75   }
     76 
     77   void TryInsert(const string& filename, const string& insertion_point,
     78                  GeneratorContext* context) const {
     79     google::protobuf::scoped_ptr<io::ZeroCopyOutputStream> output(
     80         context->OpenForInsert(filename, insertion_point));
     81     io::Printer printer(output.get(), '$');
     82     printer.Print("// inserted $name$\n", "name", insertion_point);
     83   }
     84 };
     85 
     86 // This test verifies that all the expected insertion points exist.  It does
     87 // not verify that they are correctly-placed; that would require actually
     88 // compiling the output which is a bit more than I care to do for this test.
     89 TEST(JavaPluginTest, PluginTest) {
     90   GOOGLE_CHECK_OK(File::SetContents(TestTempDir() + "/test.proto",
     91                              "syntax = \"proto2\";\n"
     92                              "package foo;\n"
     93                              "option java_package = \"\";\n"
     94                              "option java_outer_classname = \"Test\";\n"
     95                              "message Bar {\n"
     96                              "  message Baz {}\n"
     97                              "}\n"
     98                              "enum Qux { BLAH = 1; }\n",
     99                              true));
    100 
    101   google::protobuf::compiler::CommandLineInterface cli;
    102   cli.SetInputsAreProtoPathRelative(true);
    103 
    104   JavaGenerator java_generator;
    105   TestGenerator test_generator;
    106   cli.RegisterGenerator("--java_out", &java_generator, "");
    107   cli.RegisterGenerator("--test_out", &test_generator, "");
    108 
    109   string proto_path = "-I" + TestTempDir();
    110   string java_out = "--java_out=" + TestTempDir();
    111   string test_out = "--test_out=" + TestTempDir();
    112 
    113   const char* argv[] = {
    114     "protoc",
    115     proto_path.c_str(),
    116     java_out.c_str(),
    117     test_out.c_str(),
    118     "test.proto"
    119   };
    120 
    121   EXPECT_EQ(0, cli.Run(5, argv));
    122 }
    123 
    124 }  // namespace
    125 }  // namespace java
    126 }  // namespace compiler
    127 }  // namespace protobuf
    128 }  // namespace google
    129