diff options
Diffstat (limited to 'third_party/abseil_cpp/absl/base/internal/strerror_test.cc')
-rw-r--r-- | third_party/abseil_cpp/absl/base/internal/strerror_test.cc | 86 |
1 files changed, 0 insertions, 86 deletions
diff --git a/third_party/abseil_cpp/absl/base/internal/strerror_test.cc b/third_party/abseil_cpp/absl/base/internal/strerror_test.cc deleted file mode 100644 index a53da97f92c9..000000000000 --- a/third_party/abseil_cpp/absl/base/internal/strerror_test.cc +++ /dev/null @@ -1,86 +0,0 @@ -// Copyright 2020 The Abseil Authors. -// -// 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 -// -// https://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 "absl/base/internal/strerror.h" - -#include <atomic> -#include <cerrno> -#include <cstdio> -#include <cstring> -#include <string> -#include <thread> // NOLINT(build/c++11) -#include <vector> - -#include "gmock/gmock.h" -#include "gtest/gtest.h" -#include "absl/strings/match.h" - -namespace { -using ::testing::AnyOf; -using ::testing::Eq; - -TEST(StrErrorTest, ValidErrorCode) { - errno = ERANGE; - EXPECT_THAT(absl::base_internal::StrError(EDOM), Eq(strerror(EDOM))); - EXPECT_THAT(errno, Eq(ERANGE)); -} - -TEST(StrErrorTest, InvalidErrorCode) { - errno = ERANGE; - EXPECT_THAT(absl::base_internal::StrError(-1), - AnyOf(Eq("No error information"), Eq("Unknown error -1"))); - EXPECT_THAT(errno, Eq(ERANGE)); -} - -TEST(StrErrorTest, MultipleThreads) { - // In this test, we will start up 2 threads and have each one call - // StrError 1000 times, each time with a different errnum. We - // expect that StrError(errnum) will return a string equal to the - // one returned by strerror(errnum), if the code is known. Since - // strerror is known to be thread-hostile, collect all the expected - // strings up front. - const int kNumCodes = 1000; - std::vector<std::string> expected_strings(kNumCodes); - for (int i = 0; i < kNumCodes; ++i) { - expected_strings[i] = strerror(i); - } - - std::atomic_int counter(0); - auto thread_fun = [&]() { - for (int i = 0; i < kNumCodes; ++i) { - ++counter; - errno = ERANGE; - const std::string value = absl::base_internal::StrError(i); - // Only the GNU implementation is guaranteed to provide the - // string "Unknown error nnn". POSIX doesn't say anything. - if (!absl::StartsWith(value, "Unknown error ")) { - EXPECT_THAT(absl::base_internal::StrError(i), Eq(expected_strings[i])); - } - EXPECT_THAT(errno, Eq(ERANGE)); - } - }; - - const int kNumThreads = 100; - std::vector<std::thread> threads; - for (int i = 0; i < kNumThreads; ++i) { - threads.push_back(std::thread(thread_fun)); - } - for (auto& thread : threads) { - thread.join(); - } - - EXPECT_THAT(counter, Eq(kNumThreads * kNumCodes)); -} - -} // namespace |