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/compiler/java/java_generator.h>
40 #include <google/protobuf/compiler/command_line_interface.h>
41 #include <google/protobuf/io/printer.h>
42 #include <google/protobuf/io/zero_copy_stream.h>
43
44 #include <google/protobuf/testing/file.h>
45 #include <google/protobuf/testing/file.h>
46 #include <google/protobuf/testing/googletest.h>
47 #include <gtest/gtest.h>
48
49 namespace google {
50 namespace protobuf {
51 namespace compiler {
52 namespace java {
53 namespace {
54
55 class TestGenerator : public CodeGenerator {
56 public:
TestGenerator()57 TestGenerator() {}
~TestGenerator()58 ~TestGenerator() {}
59
Generate(const FileDescriptor * file,const std::string & parameter,GeneratorContext * context,std::string * error) const60 virtual bool Generate(const FileDescriptor* file,
61 const std::string& parameter, GeneratorContext* context,
62 std::string* error) const {
63 std::string filename = "Test.java";
64 TryInsert(filename, "outer_class_scope", context);
65 TryInsert(filename, "class_scope:foo.Bar", context);
66 TryInsert(filename, "class_scope:foo.Bar.Baz", context);
67 TryInsert(filename, "builder_scope:foo.Bar", context);
68 TryInsert(filename, "builder_scope:foo.Bar.Baz", context);
69 TryInsert(filename, "enum_scope:foo.Qux", context);
70 return true;
71 }
72
TryInsert(const std::string & filename,const std::string & insertion_point,GeneratorContext * context) const73 void TryInsert(const std::string& filename,
74 const std::string& insertion_point,
75 GeneratorContext* context) const {
76 std::unique_ptr<io::ZeroCopyOutputStream> output(
77 context->OpenForInsert(filename, insertion_point));
78 io::Printer printer(output.get(), '$');
79 printer.Print("// inserted $name$\n", "name", insertion_point);
80 }
81 };
82
83 // This test verifies that all the expected insertion points exist. It does
84 // not verify that they are correctly-placed; that would require actually
85 // compiling the output which is a bit more than I care to do for this test.
TEST(JavaPluginTest,PluginTest)86 TEST(JavaPluginTest, PluginTest) {
87 GOOGLE_CHECK_OK(File::SetContents(TestTempDir() + "/test.proto",
88 "syntax = \"proto2\";\n"
89 "package foo;\n"
90 "option java_package = \"\";\n"
91 "option java_outer_classname = \"Test\";\n"
92 "message Bar {\n"
93 " message Baz {}\n"
94 "}\n"
95 "enum Qux { BLAH = 1; }\n",
96 true));
97
98 CommandLineInterface cli;
99 cli.SetInputsAreProtoPathRelative(true);
100
101 JavaGenerator java_generator;
102 TestGenerator test_generator;
103 cli.RegisterGenerator("--java_out", &java_generator, "");
104 cli.RegisterGenerator("--test_out", &test_generator, "");
105
106 std::string proto_path = "-I" + TestTempDir();
107 std::string java_out = "--java_out=" + TestTempDir();
108 std::string test_out = "--test_out=" + TestTempDir();
109
110 const char* argv[] = {"protoc", proto_path.c_str(), java_out.c_str(),
111 test_out.c_str(), "test.proto"};
112
113 EXPECT_EQ(0, cli.Run(5, argv));
114 }
115
116 } // namespace
117 } // namespace java
118 } // namespace compiler
119 } // namespace protobuf
120 } // namespace google
121