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 <memory>
38
39 #include <google/protobuf/testing/file.h>
40 #include <google/protobuf/testing/file.h>
41 #include <google/protobuf/compiler/java/java_generator.h>
42 #include <google/protobuf/compiler/command_line_interface.h>
43 #include <google/protobuf/io/printer.h>
44 #include <google/protobuf/io/zero_copy_stream.h>
45 #include <google/protobuf/testing/googletest.h>
46 #include <gtest/gtest.h>
47
48 namespace google {
49 namespace protobuf {
50 namespace compiler {
51 namespace java {
52 namespace {
53
54 class TestGenerator : public CodeGenerator {
55 public:
TestGenerator()56 TestGenerator() {}
~TestGenerator()57 ~TestGenerator() override {}
58
Generate(const FileDescriptor * file,const std::string & parameter,GeneratorContext * context,std::string * error) const59 bool Generate(const FileDescriptor* file, const std::string& parameter,
60 GeneratorContext* context, std::string* error) const override {
61 std::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
TryInsert(const std::string & filename,const std::string & insertion_point,GeneratorContext * context) const71 void TryInsert(const std::string& filename,
72 const std::string& insertion_point,
73 GeneratorContext* context) const {
74 std::unique_ptr<io::ZeroCopyOutputStream> output(
75 context->OpenForInsert(filename, insertion_point));
76 io::Printer printer(output.get(), '$');
77 printer.Print("// inserted $name$\n", "name", insertion_point);
78 }
79 };
80
81 // This test verifies that all the expected insertion points exist. It does
82 // not verify that they are correctly-placed; that would require actually
83 // compiling the output which is a bit more than I care to do for this test.
TEST(JavaPluginTest,PluginTest)84 TEST(JavaPluginTest, PluginTest) {
85 GOOGLE_CHECK_OK(File::SetContents(TestTempDir() + "/test.proto",
86 "syntax = \"proto2\";\n"
87 "package foo;\n"
88 "option java_package = \"\";\n"
89 "option java_outer_classname = \"Test\";\n"
90 "message Bar {\n"
91 " message Baz {}\n"
92 "}\n"
93 "enum Qux { BLAH = 1; }\n",
94 true));
95
96 CommandLineInterface cli;
97 cli.SetInputsAreProtoPathRelative(true);
98
99 JavaGenerator java_generator;
100 TestGenerator test_generator;
101 cli.RegisterGenerator("--java_out", &java_generator, "");
102 cli.RegisterGenerator("--test_out", &test_generator, "");
103
104 std::string proto_path = "-I" + TestTempDir();
105 std::string java_out = "--java_out=" + TestTempDir();
106 std::string test_out = "--test_out=" + TestTempDir();
107
108 const char* argv[] = {"protoc", proto_path.c_str(), java_out.c_str(),
109 test_out.c_str(), "test.proto"};
110
111 EXPECT_EQ(0, cli.Run(5, argv));
112 }
113
114 } // namespace
115 } // namespace java
116 } // namespace compiler
117 } // namespace protobuf
118 } // namespace google
119