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90 lines
3.0 KiB
C++
90 lines
3.0 KiB
C++
// Copyright 2020 Google LLC
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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#include "sandboxed_api/tools/clang_generator/emitter.h"
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#include <initializer_list>
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#include "gmock/gmock.h"
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#include "gtest/gtest.h"
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#include "absl/memory/memory.h"
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#include "absl/status/statusor.h"
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#include "absl/strings/string_view.h"
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#include "sandboxed_api/sandbox2/testing.h"
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#include "sandboxed_api/tools/clang_generator/frontend_action_test_util.h"
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#include "sandboxed_api/tools/clang_generator/generator.h"
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#include "sandboxed_api/util/status_matchers.h"
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namespace sapi {
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namespace {
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using ::testing::MatchesRegex;
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using ::testing::SizeIs;
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using ::testing::StrEq;
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using ::testing::StrNe;
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class EmitterForTesting : public Emitter {
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public:
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using Emitter::functions_;
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};
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class EmitterTest : public FrontendActionTest {};
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TEST_F(EmitterTest, BasicFunctionality) {
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GeneratorOptions options;
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options.out_file = "input.h";
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options.set_function_names<std::initializer_list<std::string>>(
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{"ExposedFunction"});
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EmitterForTesting emitter;
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RunFrontendAction(R"(extern "C" void ExposedFunction() {})",
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absl::make_unique<GeneratorAction>(emitter, options));
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EXPECT_THAT(emitter.functions_, SizeIs(1));
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absl::StatusOr<std::string> header = emitter.EmitHeader(options);
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EXPECT_THAT(header, IsOk());
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}
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TEST(IncludeGuard, CreatesRandomizedGuardForEmptyFilename) {
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// Copybara will transform the string. This is intentional.
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constexpr absl::string_view kGeneratedHeaderPrefix =
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"SANDBOXED_API_GENERATED_HEADER_";
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const std::string include_guard = GetIncludeGuard("");
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EXPECT_THAT(include_guard, MatchesRegex(absl::StrCat(kGeneratedHeaderPrefix,
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R"([0-9A-F]+_)")));
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EXPECT_THAT(GetIncludeGuard(""), StrNe(include_guard));
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}
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TEST(IncludeGuard, BasicFunctionality) {
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EXPECT_THAT(GetIncludeGuard("boost/graph/compressed_sparse_row_graph.hpp"),
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StrEq("BOOST_GRAPH_COMPRESSED_SPARSE_ROW_GRAPH_HPP_"));
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// "SAPI_" prefix is there to avoid generating guards starting with "_"
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EXPECT_THAT(GetIncludeGuard("/usr/include/unistd.h"),
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StrEq("SAPI_USR_INCLUDE_UNISTD_H_"));
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}
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TEST(IncludeGuard, AvoidReservedIdentifiers) {
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EXPECT_THAT(GetIncludeGuard("9p.h"), StrEq("SAPI_9P_H_"));
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EXPECT_THAT(GetIncludeGuard("double__under.h"), StrEq("DOUBLE_UNDER_H_"));
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EXPECT_THAT(GetIncludeGuard("_single.h"), StrEq("SAPI_SINGLE_H_"));
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EXPECT_THAT(GetIncludeGuard("__double.h"), StrEq("SAPI_DOUBLE_H_"));
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}
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} // namespace
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} // namespace sapi
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