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f8ded337fb
* Carbon fuzzing 2/3: added logic for converting carbon.proto to a Carbon source string. * adjusted to proto changes in proto PR * addressed todos * removed unnecessary has_xx() calls * minor fix * sync from part 1 * Update executable_semantics/fuzzing/proto_to_carbon_test.cpp Co-authored-by: Geoff Romer <gromer@google.com> * review comments * Update common/fuzzing/proto_to_carbon.cpp Co-authored-by: Jon Meow <jperkins@google.com> * Update common/fuzzing/proto_to_carbon.cpp Co-authored-by: Jon Meow <jperkins@google.com> * code review * code review * Update common/fuzzing/proto_to_carbon.cpp Co-authored-by: Jon Meow <jperkins@google.com> * code review * merged + added support for type_params in class * use <> includes for protobuf * review comments * code review comments Co-authored-by: Geoff Romer <gromer@google.com> Co-authored-by: Jon Meow <jperkins@google.com>
64 lines
1.9 KiB
C++
64 lines
1.9 KiB
C++
// Part of the Carbon Language project, under the Apache License v2.0 with LLVM
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// Exceptions. See /LICENSE for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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#include "common/fuzzing/proto_to_carbon.h"
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#include <gmock/gmock.h>
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#include <gtest/gtest.h>
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#include "executable_semantics/fuzzing/ast_to_proto.h"
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#include "executable_semantics/syntax/parse.h"
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namespace Carbon::Testing {
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namespace {
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static std::vector<llvm::StringRef>* carbon_files = nullptr;
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// Returns a string representation of `ast`.
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auto AstToString(const AST& ast) -> std::string {
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std::string s;
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llvm::raw_string_ostream out(s);
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out << "package " << ast.package.package << (ast.is_api ? "api" : "impl")
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<< ";\n";
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for (auto* declaration : ast.declarations) {
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out << *declaration << "\n";
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}
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return s;
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}
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TEST(ProtoToCarbonTest, Roundtrip) {
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int parsed_ok_count = 0;
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for (const llvm::StringRef f : *carbon_files) {
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Carbon::Arena arena;
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const ErrorOr<AST> ast = Carbon::Parse(&arena, f, /*trace=*/false);
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if (ast.ok()) {
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++parsed_ok_count;
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const std::string source_from_proto = ProtoToCarbon(AstToProto(*ast));
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SCOPED_TRACE(testing::Message()
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<< "Carbon file: " << f << ", source from proto:\n"
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<< source_from_proto);
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const ErrorOr<AST> ast_from_proto = Carbon::ParseFromString(
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&arena, f, source_from_proto, /*trace=*/false);
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if (ast_from_proto.ok()) {
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EXPECT_EQ(AstToString(*ast), AstToString(*ast_from_proto));
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} else {
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ADD_FAILURE() << "Parse error " << ast_from_proto.error().message();
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}
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}
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}
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// Makes sure files were actually processed.
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EXPECT_GT(parsed_ok_count, 0);
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}
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} // namespace
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} // namespace Carbon::Testing
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auto main(int argc, char** argv) -> int {
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::testing::InitGoogleTest(&argc, argv);
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Carbon::Testing::carbon_files =
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new std::vector<llvm::StringRef>(&argv[1], &argv[argc]);
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return RUN_ALL_TESTS();
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}
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