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/zero_copy_stream.h>
42 #include <google/protobuf/io/printer.h>
43
44 #include <google/protobuf/testing/googletest.h>
45 #include <gtest/gtest.h>
46 #include <google/protobuf/testing/file.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() {}
58
Generate(const FileDescriptor * file,const string & parameter,GeneratorContext * context,string * error) const59 virtual bool Generate(const FileDescriptor* file,
60 const string& parameter,
61 GeneratorContext* context,
62 string* error) const {
63 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 string & filename,const string & insertion_point,GeneratorContext * context) const73 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);
79 }
80 };
81
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.
TEST(JavaPluginTest,PluginTest)85 TEST(JavaPluginTest, PluginTest) {
86 GOOGLE_CHECK_OK(File::SetContents(TestTempDir() + "/test.proto",
87 "syntax = \"proto2\";\n"
88 "package foo;\n"
89 "option java_package = \"\";\n"
90 "option java_outer_classname = \"Test\";\n"
91 "message Bar {\n"
92 " message Baz {}\n"
93 "}\n"
94 "enum Qux { BLAH = 1; }\n",
95 true));
96
97 google::protobuf::compiler::CommandLineInterface cli;
98 cli.SetInputsAreProtoPathRelative(true);
99
100 JavaGenerator java_generator;
101 TestGenerator test_generator;
102 cli.RegisterGenerator("--java_out", &java_generator, "");
103 cli.RegisterGenerator("--test_out", &test_generator, "");
104
105 string proto_path = "-I" + TestTempDir();
106 string java_out = "--java_out=" + TestTempDir();
107 string test_out = "--test_out=" + TestTempDir();
108
109 const char* argv[] = {
110 "protoc",
111 proto_path.c_str(),
112 java_out.c_str(),
113 test_out.c_str(),
114 "test.proto"
115 };
116
117 EXPECT_EQ(0, cli.Run(5, argv));
118 }
119
120 } // namespace
121 } // namespace java
122 } // namespace compiler
123 } // namespace protobuf
124 } // namespace google
125