1 // Protocol Buffers - Google's data interchange format
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31 // Author: kenton@google.com (Kenton Varda)
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
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>
42 #include <google/protobuf/testing/googletest.h>
43 #include <gtest/gtest.h>
44 #include <google/protobuf/testing/file.h>
52 class TestGenerator : public CodeGenerator {
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);
67 TryInsert("test.pb.cc", "includes", context);
68 TryInsert("test.pb.cc", "namespace_scope", context);
69 TryInsert("test.pb.cc", "global_scope", context);
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);
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.
85 TEST(CppPluginTest, PluginTest) {
86 File::WriteStringToFileOrDie(
87 "syntax = \"proto2\";\n"
92 TestTempDir() + "/test.proto");
94 google::protobuf::compiler::CommandLineInterface cli;
95 cli.SetInputsAreProtoPathRelative(true);
97 CppGenerator cpp_generator;
98 TestGenerator test_generator;
99 cli.RegisterGenerator("--cpp_out", &cpp_generator, "");
100 cli.RegisterGenerator("--test_out", &test_generator, "");
102 string proto_path = "-I" + TestTempDir();
103 string cpp_out = "--cpp_out=" + TestTempDir();
104 string test_out = "--test_out=" + TestTempDir();
106 const char* argv[] = {
114 EXPECT_EQ(0, cli.Run(5, argv));
119 } // namespace compiler
120 } // namespace protobuf
121 } // namespace google