1 // Protocol Buffers - Google's data interchange format
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3 // https://developers.google.com/protocol-buffers/
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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 #ifndef _SHARED_PTR_H
39 #include <google/protobuf/stubs/shared_ptr.h>
40 #endif
41
42 #include <google/protobuf/compiler/python/python_generator.h>
43 #include <google/protobuf/compiler/command_line_interface.h>
44 #include <google/protobuf/io/zero_copy_stream.h>
45 #include <google/protobuf/io/printer.h>
46
47 #include <google/protobuf/testing/file.h>
48 #include <google/protobuf/testing/file.h>
49 #include <google/protobuf/testing/googletest.h>
50 #include <gtest/gtest.h>
51
52 namespace google {
53 namespace protobuf {
54 namespace compiler {
55 namespace python {
56 namespace {
57
58 class TestGenerator : public CodeGenerator {
59 public:
TestGenerator()60 TestGenerator() {}
~TestGenerator()61 ~TestGenerator() {}
62
Generate(const FileDescriptor * file,const string & parameter,GeneratorContext * context,string * error) const63 virtual bool Generate(const FileDescriptor* file,
64 const string& parameter,
65 GeneratorContext* context,
66 string* error) const {
67 TryInsert("test_pb2.py", "imports", context);
68 TryInsert("test_pb2.py", "module_scope", context);
69 TryInsert("test_pb2.py", "class_scope:foo.Bar", context);
70 TryInsert("test_pb2.py", "class_scope:foo.Bar.Baz", context);
71 return true;
72 }
73
TryInsert(const string & filename,const string & insertion_point,GeneratorContext * context) const74 void TryInsert(const string& filename, const string& insertion_point,
75 GeneratorContext* context) const {
76 google::protobuf::scoped_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(PythonPluginTest,PluginTest)86 TEST(PythonPluginTest, PluginTest) {
87 GOOGLE_CHECK_OK(File::SetContents(TestTempDir() + "/test.proto",
88 "syntax = \"proto2\";\n"
89 "package foo;\n"
90 "message Bar {\n"
91 " message Baz {}\n"
92 "}\n",
93 true));
94
95 google::protobuf::compiler::CommandLineInterface cli;
96 cli.SetInputsAreProtoPathRelative(true);
97
98 python::Generator python_generator;
99 TestGenerator test_generator;
100 cli.RegisterGenerator("--python_out", &python_generator, "");
101 cli.RegisterGenerator("--test_out", &test_generator, "");
102
103 string proto_path = "-I" + TestTempDir();
104 string python_out = "--python_out=" + TestTempDir();
105 string test_out = "--test_out=" + TestTempDir();
106
107 const char* argv[] = {
108 "protoc",
109 proto_path.c_str(),
110 python_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 python
120 } // namespace compiler
121 } // namespace protobuf
122 } // namespace google
123