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70 lines
2.6 KiB
C++
70 lines
2.6 KiB
C++
// Copyright 2019 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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#ifndef SANDBOXED_API_SANDBOX2_TESTING_H_
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#define SANDBOXED_API_SANDBOX2_TESTING_H_
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#include <cstdlib>
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#include <string>
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#include "absl/strings/string_view.h"
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// The macro SKIP_SANITIZERS_AND_COVERAGE can be used in tests to skip running
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// a given test (by emitting 'return') when running under one of the sanitizers
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// (ASan, MSan, TSan) or under code coverage. Example:
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//
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// TEST(Foo, Bar) {
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// SKIP_SANITIZERS_AND_COVERAGE;
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// [...]
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// }
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//
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// The reason for this is because Bazel options are inherited to binaries in
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// data dependencies and cannot be per-target, which means when running a test
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// with a sanitizer or coverage, the sandboxee as data dependency will also be
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// compiled with sanitizer or coverage, which creates a lot of side effects and
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// violates the sandbox policy prepared for the test.
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// See b/7981124. // google3-only(internal reference)
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// In other words, those tests cannot work under sanitizers or coverage, so we
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// skip them in such situation using this macro.
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//
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// The downside of this approach is that no coverage will be collected.
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// To still have coverage, pre-compile sandboxees and add them as test data,
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// then no need to skip tests.
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#if defined(ADDRESS_SANITIZER) || defined(MEMORY_SANITIZER) || \
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defined(THREAD_SANITIZER)
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#define SKIP_SANITIZERS_AND_COVERAGE return
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#else
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#define SKIP_SANITIZERS_AND_COVERAGE \
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do { \
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if (getenv("COVERAGE") != nullptr) { \
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return; \
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} \
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} while (0)
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#endif
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namespace sandbox2 {
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// Returns a writable path usable in tests. If the name argument is specified,
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// returns a name under that path. This can then be used for creating temporary
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// test files and/or directories.
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std::string GetTestTempPath(absl::string_view name = {});
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// Returns a filename relative to the sandboxed_api directory at the root of the
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// source tree. Use this to access data files in tests.
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std::string GetTestSourcePath(absl::string_view name);
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} // namespace sandbox2
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#endif // SANDBOXED_API_SANDBOX2_TESTING_H_
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