1// Protocol Buffers - Google's data interchange format
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3// http://code.google.com/p/protobuf/
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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
123