sandboxed-api/sandboxed_api/tools/clang_generator/emitter_test.cc
Christian Blichmann dbaf95c724 Move utility code into sandboxed_api/util
This change should make it less confusing where utility code comes from.
Having it in two places made sense when we were debating whether to publish
Sandbox2 separately, but not any longer.

Follow-up changes will move `sandbox2/util.h` and rename the remaining
`sandbox2/util` folder.

PiperOrigin-RevId: 351601640
Change-Id: I6256845261f610e590c25e2c59851cc51da2d778
2021-01-13 09:25:52 -08:00

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3.0 KiB
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// Copyright 2020 Google LLC
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
#include "sandboxed_api/tools/clang_generator/emitter.h"
#include <initializer_list>
#include "gmock/gmock.h"
#include "gtest/gtest.h"
#include "absl/memory/memory.h"
#include "absl/status/statusor.h"
#include "absl/strings/string_view.h"
#include "sandboxed_api/testing.h"
#include "sandboxed_api/tools/clang_generator/frontend_action_test_util.h"
#include "sandboxed_api/tools/clang_generator/generator.h"
#include "sandboxed_api/util/status_matchers.h"
namespace sapi {
namespace {
using ::testing::MatchesRegex;
using ::testing::SizeIs;
using ::testing::StrEq;
using ::testing::StrNe;
class EmitterForTesting : public Emitter {
public:
using Emitter::functions_;
};
class EmitterTest : public FrontendActionTest {};
TEST_F(EmitterTest, BasicFunctionality) {
GeneratorOptions options;
options.out_file = "input.h";
options.set_function_names<std::initializer_list<std::string>>(
{"ExposedFunction"});
EmitterForTesting emitter;
RunFrontendAction(R"(extern "C" void ExposedFunction() {})",
absl::make_unique<GeneratorAction>(emitter, options));
EXPECT_THAT(emitter.functions_, SizeIs(1));
absl::StatusOr<std::string> header = emitter.EmitHeader(options);
EXPECT_THAT(header, IsOk());
}
TEST(IncludeGuard, CreatesRandomizedGuardForEmptyFilename) {
// Copybara will transform the string. This is intentional.
constexpr absl::string_view kGeneratedHeaderPrefix =
"SANDBOXED_API_GENERATED_HEADER_";
const std::string include_guard = GetIncludeGuard("");
EXPECT_THAT(include_guard, MatchesRegex(absl::StrCat(kGeneratedHeaderPrefix,
R"([0-9A-F]+_)")));
EXPECT_THAT(GetIncludeGuard(""), StrNe(include_guard));
}
TEST(IncludeGuard, BasicFunctionality) {
EXPECT_THAT(GetIncludeGuard("boost/graph/compressed_sparse_row_graph.hpp"),
StrEq("BOOST_GRAPH_COMPRESSED_SPARSE_ROW_GRAPH_HPP_"));
// "SAPI_" prefix is there to avoid generating guards starting with "_"
EXPECT_THAT(GetIncludeGuard("/usr/include/unistd.h"),
StrEq("SAPI_USR_INCLUDE_UNISTD_H_"));
}
TEST(IncludeGuard, AvoidReservedIdentifiers) {
EXPECT_THAT(GetIncludeGuard("9p.h"), StrEq("SAPI_9P_H_"));
EXPECT_THAT(GetIncludeGuard("double__under.h"), StrEq("DOUBLE_UNDER_H_"));
EXPECT_THAT(GetIncludeGuard("_single.h"), StrEq("SAPI_SINGLE_H_"));
EXPECT_THAT(GetIncludeGuard("__double.h"), StrEq("SAPI_DOUBLE_H_"));
}
} // namespace
} // namespace sapi