12bc53e031
-- c99f979ad34f155fbeeea69b88bdc7458d89a21c by Derek Mauro <dmauro@google.com>: Remove a floating point division by zero test. This isn't testing behavior related to the library, and MSVC warns about it in opt mode. PiperOrigin-RevId: 285220804 -- 68b015491f0dbf1ab547994673281abd1f34cd4b by Gennadiy Rozental <rogeeff@google.com>: This CL introduces following changes to the class FlagImpl: * We eliminate the CommandLineFlagLocks struct. Instead callback guard and callback function are combined into a single CallbackData struct, while primary data lock is stored separately. * CallbackData member of class FlagImpl is initially set to be nullptr and is only allocated and initialized when a flag's callback is being set. For most flags we do not pay for the extra space and extra absl::Mutex now. * Primary data guard is stored in data_guard_ data member. This is a properly aligned character buffer of necessary size. During initialization of the flag we construct absl::Mutex in this space using placement new call. * We now avoid extra value copy after successful attempt to parse value out of string. Instead we swap flag's current value with tentative value we just produced. PiperOrigin-RevId: 285132636 -- ed45d118fb818969eb13094cf7827c885dfc562c by Tom Manshreck <shreck@google.com>: Change null-term* (and nul-term*) to NUL-term* in comments PiperOrigin-RevId: 285036610 -- 729619017944db895ce8d6d29c1995aa2e5628a5 by Derek Mauro <dmauro@google.com>: Use the Posix implementation of thread identity on MinGW. Some versions of MinGW suffer from thread_local bugs. PiperOrigin-RevId: 285022920 -- 39a25493503c76885bc3254c28f66a251c5b5bb0 by Greg Falcon <gfalcon@google.com>: Implementation detail change. Add further ABSL_NAMESPACE_BEGIN and _END annotation macros to files in Abseil. PiperOrigin-RevId: 285012012 GitOrigin-RevId: c99f979ad34f155fbeeea69b88bdc7458d89a21c Change-Id: I4c85d3704e45d11a9ac50d562f39640a6adbedc1
202 lines
6.9 KiB
C++
202 lines
6.9 KiB
C++
// Copyright 2019 The Abseil Authors.
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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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// https://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 "absl/base/config.h"
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#include "absl/container/fixed_array.h"
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#ifdef ABSL_HAVE_EXCEPTIONS
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#include <initializer_list>
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#include "gtest/gtest.h"
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#include "absl/base/internal/exception_safety_testing.h"
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namespace absl {
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ABSL_NAMESPACE_BEGIN
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namespace {
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constexpr size_t kInlined = 25;
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constexpr size_t kSmallSize = kInlined / 2;
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constexpr size_t kLargeSize = kInlined * 2;
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constexpr int kInitialValue = 5;
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constexpr int kUpdatedValue = 10;
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using ::testing::TestThrowingCtor;
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using Thrower = testing::ThrowingValue<testing::TypeSpec::kEverythingThrows>;
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using ThrowAlloc =
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testing::ThrowingAllocator<Thrower, testing::AllocSpec::kEverythingThrows>;
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using MoveThrower = testing::ThrowingValue<testing::TypeSpec::kNoThrowMove>;
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using MoveThrowAlloc =
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testing::ThrowingAllocator<MoveThrower,
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testing::AllocSpec::kEverythingThrows>;
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using FixedArr = absl::FixedArray<Thrower, kInlined>;
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using FixedArrWithAlloc = absl::FixedArray<Thrower, kInlined, ThrowAlloc>;
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using MoveFixedArr = absl::FixedArray<MoveThrower, kInlined>;
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using MoveFixedArrWithAlloc =
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absl::FixedArray<MoveThrower, kInlined, MoveThrowAlloc>;
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TEST(FixedArrayExceptionSafety, CopyConstructor) {
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auto small = FixedArr(kSmallSize);
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TestThrowingCtor<FixedArr>(small);
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auto large = FixedArr(kLargeSize);
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TestThrowingCtor<FixedArr>(large);
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}
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TEST(FixedArrayExceptionSafety, CopyConstructorWithAlloc) {
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auto small = FixedArrWithAlloc(kSmallSize);
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TestThrowingCtor<FixedArrWithAlloc>(small);
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auto large = FixedArrWithAlloc(kLargeSize);
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TestThrowingCtor<FixedArrWithAlloc>(large);
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}
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TEST(FixedArrayExceptionSafety, MoveConstructor) {
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TestThrowingCtor<FixedArr>(FixedArr(kSmallSize));
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TestThrowingCtor<FixedArr>(FixedArr(kLargeSize));
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// TypeSpec::kNoThrowMove
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TestThrowingCtor<MoveFixedArr>(MoveFixedArr(kSmallSize));
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TestThrowingCtor<MoveFixedArr>(MoveFixedArr(kLargeSize));
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}
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TEST(FixedArrayExceptionSafety, MoveConstructorWithAlloc) {
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TestThrowingCtor<FixedArrWithAlloc>(FixedArrWithAlloc(kSmallSize));
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TestThrowingCtor<FixedArrWithAlloc>(FixedArrWithAlloc(kLargeSize));
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// TypeSpec::kNoThrowMove
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TestThrowingCtor<MoveFixedArrWithAlloc>(MoveFixedArrWithAlloc(kSmallSize));
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TestThrowingCtor<MoveFixedArrWithAlloc>(MoveFixedArrWithAlloc(kLargeSize));
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}
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TEST(FixedArrayExceptionSafety, SizeConstructor) {
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TestThrowingCtor<FixedArr>(kSmallSize);
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TestThrowingCtor<FixedArr>(kLargeSize);
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}
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TEST(FixedArrayExceptionSafety, SizeConstructorWithAlloc) {
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TestThrowingCtor<FixedArrWithAlloc>(kSmallSize);
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TestThrowingCtor<FixedArrWithAlloc>(kLargeSize);
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}
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TEST(FixedArrayExceptionSafety, SizeValueConstructor) {
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TestThrowingCtor<FixedArr>(kSmallSize, Thrower());
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TestThrowingCtor<FixedArr>(kLargeSize, Thrower());
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}
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TEST(FixedArrayExceptionSafety, SizeValueConstructorWithAlloc) {
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TestThrowingCtor<FixedArrWithAlloc>(kSmallSize, Thrower());
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TestThrowingCtor<FixedArrWithAlloc>(kLargeSize, Thrower());
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}
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TEST(FixedArrayExceptionSafety, IteratorConstructor) {
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auto small = FixedArr(kSmallSize);
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TestThrowingCtor<FixedArr>(small.begin(), small.end());
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auto large = FixedArr(kLargeSize);
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TestThrowingCtor<FixedArr>(large.begin(), large.end());
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}
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TEST(FixedArrayExceptionSafety, IteratorConstructorWithAlloc) {
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auto small = FixedArrWithAlloc(kSmallSize);
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TestThrowingCtor<FixedArrWithAlloc>(small.begin(), small.end());
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auto large = FixedArrWithAlloc(kLargeSize);
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TestThrowingCtor<FixedArrWithAlloc>(large.begin(), large.end());
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}
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TEST(FixedArrayExceptionSafety, InitListConstructor) {
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constexpr int small_inlined = 3;
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using SmallFixedArr = absl::FixedArray<Thrower, small_inlined>;
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TestThrowingCtor<SmallFixedArr>(std::initializer_list<Thrower>{});
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// Test inlined allocation
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TestThrowingCtor<SmallFixedArr>(
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std::initializer_list<Thrower>{Thrower{}, Thrower{}});
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// Test out of line allocation
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TestThrowingCtor<SmallFixedArr>(std::initializer_list<Thrower>{
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Thrower{}, Thrower{}, Thrower{}, Thrower{}, Thrower{}});
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}
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TEST(FixedArrayExceptionSafety, InitListConstructorWithAlloc) {
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constexpr int small_inlined = 3;
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using SmallFixedArrWithAlloc =
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absl::FixedArray<Thrower, small_inlined, ThrowAlloc>;
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TestThrowingCtor<SmallFixedArrWithAlloc>(std::initializer_list<Thrower>{});
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// Test inlined allocation
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TestThrowingCtor<SmallFixedArrWithAlloc>(
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std::initializer_list<Thrower>{Thrower{}, Thrower{}});
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// Test out of line allocation
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TestThrowingCtor<SmallFixedArrWithAlloc>(std::initializer_list<Thrower>{
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Thrower{}, Thrower{}, Thrower{}, Thrower{}, Thrower{}});
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}
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template <typename FixedArrT>
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testing::AssertionResult ReadMemory(FixedArrT* fixed_arr) {
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// Marked volatile to prevent optimization. Used for running asan tests.
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volatile int sum = 0;
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for (const auto& thrower : *fixed_arr) {
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sum += thrower.Get();
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}
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return testing::AssertionSuccess() << "Values sum to [" << sum << "]";
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}
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TEST(FixedArrayExceptionSafety, Fill) {
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auto test_fill = testing::MakeExceptionSafetyTester()
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.WithContracts(ReadMemory<FixedArr>)
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.WithOperation([&](FixedArr* fixed_arr_ptr) {
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auto thrower =
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Thrower(kUpdatedValue, testing::nothrow_ctor);
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fixed_arr_ptr->fill(thrower);
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});
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EXPECT_TRUE(
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test_fill.WithInitialValue(FixedArr(kSmallSize, Thrower(kInitialValue)))
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.Test());
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EXPECT_TRUE(
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test_fill.WithInitialValue(FixedArr(kLargeSize, Thrower(kInitialValue)))
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.Test());
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}
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TEST(FixedArrayExceptionSafety, FillWithAlloc) {
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auto test_fill = testing::MakeExceptionSafetyTester()
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.WithContracts(ReadMemory<FixedArrWithAlloc>)
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.WithOperation([&](FixedArrWithAlloc* fixed_arr_ptr) {
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auto thrower =
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Thrower(kUpdatedValue, testing::nothrow_ctor);
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fixed_arr_ptr->fill(thrower);
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});
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EXPECT_TRUE(test_fill
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.WithInitialValue(
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FixedArrWithAlloc(kSmallSize, Thrower(kInitialValue)))
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.Test());
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EXPECT_TRUE(test_fill
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.WithInitialValue(
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FixedArrWithAlloc(kLargeSize, Thrower(kInitialValue)))
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.Test());
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}
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} // namespace
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ABSL_NAMESPACE_END
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} // namespace absl
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#endif // ABSL_HAVE_EXCEPTIONS
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