| // Protocol Buffers - Google's data interchange format |
| // Copyright 2008 Google Inc. All rights reserved. |
| // |
| // Use of this source code is governed by a BSD-style |
| // license that can be found in the LICENSE file or at |
| // https://developers.google.com/open-source/licenses/bsd |
| |
| // Author: kenton@google.com (Kenton Varda) |
| |
| #include <memory> |
| #include <string> |
| #include <vector> |
| |
| #include "google/protobuf/testing/file.h" |
| #include "google/protobuf/testing/file.h" |
| #include "google/protobuf/compiler/command_line_interface.h" |
| #include "google/protobuf/compiler/python/generator.h" |
| #include <gtest/gtest.h> |
| #include "absl/log/absl_check.h" |
| #include "absl/strings/str_split.h" |
| #include "google/protobuf/io/printer.h" |
| #include "google/protobuf/io/zero_copy_stream.h" |
| |
| namespace google { |
| namespace protobuf { |
| namespace compiler { |
| namespace python { |
| namespace { |
| |
| class TestGenerator : public CodeGenerator { |
| public: |
| TestGenerator() {} |
| ~TestGenerator() override {} |
| |
| bool Generate(const FileDescriptor* file, const std::string& parameter, |
| GeneratorContext* context, std::string* error) const override { |
| TryInsert("test_pb2.py", "imports", context); |
| TryInsert("test_pb2.py", "module_scope", context); |
| TryInsert("test_pb2.py", "class_scope:foo.Bar", context); |
| TryInsert("test_pb2.py", "class_scope:foo.Bar.Baz", context); |
| return true; |
| } |
| |
| void TryInsert(const std::string& filename, |
| const std::string& insertion_point, |
| GeneratorContext* context) const { |
| std::unique_ptr<io::ZeroCopyOutputStream> output( |
| context->OpenForInsert(filename, insertion_point)); |
| io::Printer printer(output.get(), '$'); |
| printer.Print("// inserted $name$\n", "name", insertion_point); |
| } |
| }; |
| |
| // opposed to importlib) in the usual case where the .proto file paths do not |
| // not contain any Python keywords. |
| TEST(PythonPluginTest, ImportTest) { |
| // Create files test1.proto and test2.proto with the former importing the |
| // latter. |
| ABSL_CHECK_OK( |
| File::SetContents(absl::StrCat(::testing::TempDir(), "/test1.proto"), |
| "syntax = \"proto3\";\n" |
| "package foo;\n" |
| "import \"test2.proto\";" |
| "message Message1 {\n" |
| " Message2 message_2 = 1;\n" |
| "}\n", |
| true)); |
| ABSL_CHECK_OK( |
| File::SetContents(absl::StrCat(::testing::TempDir(), "/test2.proto"), |
| "syntax = \"proto3\";\n" |
| "package foo;\n" |
| "message Message2 {}\n", |
| true)); |
| |
| compiler::CommandLineInterface cli; |
| cli.SetInputsAreProtoPathRelative(true); |
| python::Generator python_generator; |
| cli.RegisterGenerator("--python_out", &python_generator, ""); |
| std::string proto_path = absl::StrCat("-I", ::testing::TempDir()); |
| std::string python_out = absl::StrCat("--python_out=", ::testing::TempDir()); |
| const char* argv[] = {"protoc", proto_path.c_str(), "-I.", python_out.c_str(), |
| "test1.proto"}; |
| ASSERT_EQ(0, cli.Run(5, argv)); |
| |
| // Loop over the lines of the generated code and verify that we find an |
| // ordinary Python import but do not find the string "importlib". |
| std::string output; |
| ABSL_CHECK_OK( |
| File::GetContents(absl::StrCat(::testing::TempDir(), "/test1_pb2.py"), |
| &output, true)); |
| std::vector<absl::string_view> lines = absl::StrSplit(output, '\n'); |
| std::string expected_import = "import test2_pb2"; |
| bool found_expected_import = false; |
| for (absl::string_view line : lines) { |
| if (absl::StrContains(line, expected_import)) { |
| found_expected_import = true; |
| } |
| EXPECT_FALSE(absl::StrContains(line, "importlib")); |
| } |
| EXPECT_TRUE(found_expected_import); |
| } |
| |
| } // namespace |
| } // namespace python |
| } // namespace compiler |
| } // namespace protobuf |
| } // namespace google |