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author | Abseil Team <absl-team@google.com> | 2019-08-08 10:56:58 -0700 |
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committer | CJ Johnson <johnsoncj@google.com> | 2019-08-08 14:19:45 -0400 |
commit | aa844899c937bde5d2b24f276b59997e5b668bde (patch) | |
tree | cd18e64150abc74b85bbbf6abf990f66fa47cacd /absl/container/inlined_vector_exception_safety_test.cc | |
parent | fcb104594b0bb4b8ac306cb2f55ecdad40974683 (diff) |
Creation of LTS branch "lts_2019_08_08"20190808
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GitOrigin-RevId: 9ee91d3e430fb33a4590486573792eb0fa146c2d
Change-Id: Ia06e548bc106cc9d136f6c65714be6645317aced
Diffstat (limited to 'absl/container/inlined_vector_exception_safety_test.cc')
-rw-r--r-- | absl/container/inlined_vector_exception_safety_test.cc | 489 |
1 files changed, 489 insertions, 0 deletions
diff --git a/absl/container/inlined_vector_exception_safety_test.cc b/absl/container/inlined_vector_exception_safety_test.cc new file mode 100644 index 00000000..ff0da75b --- /dev/null +++ b/absl/container/inlined_vector_exception_safety_test.cc @@ -0,0 +1,489 @@ +// Copyright 2019 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 <array> +#include <initializer_list> +#include <iterator> +#include <memory> +#include <utility> + +#include "gtest/gtest.h" +#include "absl/base/internal/exception_safety_testing.h" +#include "absl/container/inlined_vector.h" + +namespace { + +constexpr size_t kInlinedCapacity = 4; +constexpr size_t kLargeSize = kInlinedCapacity * 2; +constexpr size_t kSmallSize = kInlinedCapacity / 2; + +using Thrower = testing::ThrowingValue<>; +using MovableThrower = testing::ThrowingValue<testing::TypeSpec::kNoThrowMove>; +using ThrowAlloc = testing::ThrowingAllocator<Thrower>; + +using ThrowerVec = absl::InlinedVector<Thrower, kInlinedCapacity>; +using MovableThrowerVec = absl::InlinedVector<MovableThrower, kInlinedCapacity>; + +using ThrowAllocThrowerVec = + absl::InlinedVector<Thrower, kInlinedCapacity, ThrowAlloc>; +using ThrowAllocMovableThrowerVec = + absl::InlinedVector<MovableThrower, kInlinedCapacity, ThrowAlloc>; + +// In GCC, if an element of a `std::initializer_list` throws during construction +// the elements that were constructed before it are not destroyed. This causes +// incorrect exception safety test failures. Thus, `testing::nothrow_ctor` is +// required. See: https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66139 +#define ABSL_INTERNAL_MAKE_INIT_LIST(T, N) \ + (N > kInlinedCapacity \ + ? std::initializer_list<T>{T(0, testing::nothrow_ctor), \ + T(1, testing::nothrow_ctor), \ + T(2, testing::nothrow_ctor), \ + T(3, testing::nothrow_ctor), \ + T(4, testing::nothrow_ctor), \ + T(5, testing::nothrow_ctor), \ + T(6, testing::nothrow_ctor), \ + T(7, testing::nothrow_ctor)} \ + \ + : std::initializer_list<T>{T(0, testing::nothrow_ctor), \ + T(1, testing::nothrow_ctor)}) +static_assert((kLargeSize == 8 || kSmallSize == 2), + "Must update ABSL_INTERNAL_MAKE_INIT_LIST(...)."); + +template <typename TheVecT, size_t... TheSizes> +class TestParams { + public: + using VecT = TheVecT; + constexpr static size_t GetSizeAt(size_t i) { return kSizes[1 + i]; } + + private: + constexpr static size_t kSizes[1 + sizeof...(TheSizes)] = {1, TheSizes...}; +}; + +using NoSizeTestParams = + ::testing::Types<TestParams<ThrowerVec>, TestParams<MovableThrowerVec>, + TestParams<ThrowAllocThrowerVec>, + TestParams<ThrowAllocMovableThrowerVec>>; + +using OneSizeTestParams = + ::testing::Types<TestParams<ThrowerVec, kLargeSize>, + TestParams<ThrowerVec, kSmallSize>, + TestParams<MovableThrowerVec, kLargeSize>, + TestParams<MovableThrowerVec, kSmallSize>, + TestParams<ThrowAllocThrowerVec, kLargeSize>, + TestParams<ThrowAllocThrowerVec, kSmallSize>, + TestParams<ThrowAllocMovableThrowerVec, kLargeSize>, + TestParams<ThrowAllocMovableThrowerVec, kSmallSize>>; + +using TwoSizeTestParams = ::testing::Types< + TestParams<ThrowerVec, kLargeSize, kLargeSize>, + TestParams<ThrowerVec, kLargeSize, kSmallSize>, + TestParams<ThrowerVec, kSmallSize, kLargeSize>, + TestParams<ThrowerVec, kSmallSize, kSmallSize>, + TestParams<MovableThrowerVec, kLargeSize, kLargeSize>, + TestParams<MovableThrowerVec, kLargeSize, kSmallSize>, + TestParams<MovableThrowerVec, kSmallSize, kLargeSize>, + TestParams<MovableThrowerVec, kSmallSize, kSmallSize>, + TestParams<ThrowAllocThrowerVec, kLargeSize, kLargeSize>, + TestParams<ThrowAllocThrowerVec, kLargeSize, kSmallSize>, + TestParams<ThrowAllocThrowerVec, kSmallSize, kLargeSize>, + TestParams<ThrowAllocThrowerVec, kSmallSize, kSmallSize>, + TestParams<ThrowAllocMovableThrowerVec, kLargeSize, kLargeSize>, + TestParams<ThrowAllocMovableThrowerVec, kLargeSize, kSmallSize>, + TestParams<ThrowAllocMovableThrowerVec, kSmallSize, kLargeSize>, + TestParams<ThrowAllocMovableThrowerVec, kSmallSize, kSmallSize>>; + +template <typename> +struct NoSizeTest : ::testing::Test {}; +TYPED_TEST_SUITE(NoSizeTest, NoSizeTestParams); + +template <typename> +struct OneSizeTest : ::testing::Test {}; +TYPED_TEST_SUITE(OneSizeTest, OneSizeTestParams); + +template <typename> +struct TwoSizeTest : ::testing::Test {}; +TYPED_TEST_SUITE(TwoSizeTest, TwoSizeTestParams); + +template <typename VecT> +bool InlinedVectorInvariants(VecT* vec) { + if (*vec != *vec) return false; + if (vec->size() > vec->capacity()) return false; + if (vec->size() > vec->max_size()) return false; + if (vec->capacity() > vec->max_size()) return false; + if (vec->data() != std::addressof(vec->at(0))) return false; + if (vec->data() != vec->begin()) return false; + if (*vec->data() != *vec->begin()) return false; + if (vec->begin() > vec->end()) return false; + if ((vec->end() - vec->begin()) != vec->size()) return false; + if (std::distance(vec->begin(), vec->end()) != vec->size()) return false; + return true; +} + +// Function that always returns false is correct, but refactoring is required +// for clarity. It's needed to express that, as a contract, certain operations +// should not throw at all. Execution of this function means an exception was +// thrown and thus the test should fail. +// TODO(johnsoncj): Add `testing::NoThrowGuarantee` to the framework +template <typename VecT> +bool NoThrowGuarantee(VecT* /* vec */) { + return false; +} + +TYPED_TEST(NoSizeTest, DefaultConstructor) { + using VecT = typename TypeParam::VecT; + using allocator_type = typename VecT::allocator_type; + + testing::TestThrowingCtor<VecT>(); + + testing::TestThrowingCtor<VecT>(allocator_type{}); +} + +TYPED_TEST(OneSizeTest, SizeConstructor) { + using VecT = typename TypeParam::VecT; + using allocator_type = typename VecT::allocator_type; + constexpr static auto size = TypeParam::GetSizeAt(0); + + testing::TestThrowingCtor<VecT>(size); + + testing::TestThrowingCtor<VecT>(size, allocator_type{}); +} + +TYPED_TEST(OneSizeTest, SizeRefConstructor) { + using VecT = typename TypeParam::VecT; + using value_type = typename VecT::value_type; + using allocator_type = typename VecT::allocator_type; + constexpr static auto size = TypeParam::GetSizeAt(0); + + testing::TestThrowingCtor<VecT>(size, value_type{}); + + testing::TestThrowingCtor<VecT>(size, value_type{}, allocator_type{}); +} + +TYPED_TEST(OneSizeTest, InitializerListConstructor) { + using VecT = typename TypeParam::VecT; + using value_type = typename VecT::value_type; + using allocator_type = typename VecT::allocator_type; + constexpr static auto size = TypeParam::GetSizeAt(0); + + testing::TestThrowingCtor<VecT>( + ABSL_INTERNAL_MAKE_INIT_LIST(value_type, size)); + + testing::TestThrowingCtor<VecT>( + ABSL_INTERNAL_MAKE_INIT_LIST(value_type, size), allocator_type{}); +} + +TYPED_TEST(OneSizeTest, RangeConstructor) { + using VecT = typename TypeParam::VecT; + using value_type = typename VecT::value_type; + using allocator_type = typename VecT::allocator_type; + constexpr static auto size = TypeParam::GetSizeAt(0); + + std::array<value_type, size> arr{}; + + testing::TestThrowingCtor<VecT>(arr.begin(), arr.end()); + + testing::TestThrowingCtor<VecT>(arr.begin(), arr.end(), allocator_type{}); +} + +TYPED_TEST(OneSizeTest, CopyConstructor) { + using VecT = typename TypeParam::VecT; + using allocator_type = typename VecT::allocator_type; + constexpr static auto size = TypeParam::GetSizeAt(0); + + VecT other_vec{size}; + + testing::TestThrowingCtor<VecT>(other_vec); + + testing::TestThrowingCtor<VecT>(other_vec, allocator_type{}); +} + +TYPED_TEST(OneSizeTest, MoveConstructor) { + using VecT = typename TypeParam::VecT; + using allocator_type = typename VecT::allocator_type; + constexpr static auto size = TypeParam::GetSizeAt(0); + + if (!absl::allocator_is_nothrow<allocator_type>::value) { + testing::TestThrowingCtor<VecT>(VecT{size}); + + testing::TestThrowingCtor<VecT>(VecT{size}, allocator_type{}); + } +} + +TYPED_TEST(TwoSizeTest, Assign) { + using VecT = typename TypeParam::VecT; + using value_type = typename VecT::value_type; + constexpr static auto from_size = TypeParam::GetSizeAt(0); + constexpr static auto to_size = TypeParam::GetSizeAt(1); + + auto tester = testing::MakeExceptionSafetyTester() + .WithInitialValue(VecT{from_size}) + .WithContracts(InlinedVectorInvariants<VecT>); + + EXPECT_TRUE(tester.Test([](VecT* vec) { + *vec = ABSL_INTERNAL_MAKE_INIT_LIST(value_type, to_size); + })); + + EXPECT_TRUE(tester.Test([](VecT* vec) { + VecT other_vec{to_size}; + *vec = other_vec; + })); + + EXPECT_TRUE(tester.Test([](VecT* vec) { + VecT other_vec{to_size}; + *vec = std::move(other_vec); + })); + + EXPECT_TRUE(tester.Test([](VecT* vec) { + value_type val{}; + vec->assign(to_size, val); + })); + + EXPECT_TRUE(tester.Test([](VecT* vec) { + vec->assign(ABSL_INTERNAL_MAKE_INIT_LIST(value_type, to_size)); + })); + + EXPECT_TRUE(tester.Test([](VecT* vec) { + std::array<value_type, to_size> arr{}; + vec->assign(arr.begin(), arr.end()); + })); +} + +TYPED_TEST(TwoSizeTest, Resize) { + using VecT = typename TypeParam::VecT; + using value_type = typename VecT::value_type; + constexpr static auto from_size = TypeParam::GetSizeAt(0); + constexpr static auto to_size = TypeParam::GetSizeAt(1); + + auto tester = testing::MakeExceptionSafetyTester() + .WithInitialValue(VecT{from_size}) + .WithContracts(InlinedVectorInvariants<VecT>, + testing::strong_guarantee); + + EXPECT_TRUE(tester.Test([](VecT* vec) { + vec->resize(to_size); // + })); + + EXPECT_TRUE(tester.Test([](VecT* vec) { + vec->resize(to_size, value_type{}); // + })); +} + +TYPED_TEST(OneSizeTest, Insert) { + using VecT = typename TypeParam::VecT; + using value_type = typename VecT::value_type; + constexpr static auto from_size = TypeParam::GetSizeAt(0); + + auto tester = testing::MakeExceptionSafetyTester() + .WithInitialValue(VecT{from_size}) + .WithContracts(InlinedVectorInvariants<VecT>); + + EXPECT_TRUE(tester.Test([](VecT* vec) { + auto it = vec->begin(); + vec->insert(it, value_type{}); + })); + EXPECT_TRUE(tester.Test([](VecT* vec) { + auto it = vec->begin() + (vec->size() / 2); + vec->insert(it, value_type{}); + })); + EXPECT_TRUE(tester.Test([](VecT* vec) { + auto it = vec->end(); + vec->insert(it, value_type{}); + })); +} + +TYPED_TEST(TwoSizeTest, Insert) { + using VecT = typename TypeParam::VecT; + using value_type = typename VecT::value_type; + constexpr static auto from_size = TypeParam::GetSizeAt(0); + constexpr static auto count = TypeParam::GetSizeAt(1); + + auto tester = testing::MakeExceptionSafetyTester() + .WithInitialValue(VecT{from_size}) + .WithContracts(InlinedVectorInvariants<VecT>); + + EXPECT_TRUE(tester.Test([](VecT* vec) { + auto it = vec->begin(); + vec->insert(it, count, value_type{}); + })); + EXPECT_TRUE(tester.Test([](VecT* vec) { + auto it = vec->begin() + (vec->size() / 2); + vec->insert(it, count, value_type{}); + })); + EXPECT_TRUE(tester.Test([](VecT* vec) { + auto it = vec->end(); + vec->insert(it, count, value_type{}); + })); + + EXPECT_TRUE(tester.Test([](VecT* vec) { + auto it = vec->begin(); + vec->insert(it, ABSL_INTERNAL_MAKE_INIT_LIST(value_type, count)); + })); + EXPECT_TRUE(tester.Test([](VecT* vec) { + auto it = vec->begin() + (vec->size() / 2); + vec->insert(it, ABSL_INTERNAL_MAKE_INIT_LIST(value_type, count)); + })); + EXPECT_TRUE(tester.Test([](VecT* vec) { + auto it = vec->end(); + vec->insert(it, ABSL_INTERNAL_MAKE_INIT_LIST(value_type, count)); + })); + + EXPECT_TRUE(tester.Test([](VecT* vec) { + auto it = vec->begin(); + std::array<value_type, count> arr{}; + vec->insert(it, arr.begin(), arr.end()); + })); + EXPECT_TRUE(tester.Test([](VecT* vec) { + auto it = vec->begin() + (vec->size() / 2); + std::array<value_type, count> arr{}; + vec->insert(it, arr.begin(), arr.end()); + })); + EXPECT_TRUE(tester.Test([](VecT* vec) { + auto it = vec->end(); + std::array<value_type, count> arr{}; + vec->insert(it, arr.begin(), arr.end()); + })); +} + +TYPED_TEST(OneSizeTest, EmplaceBack) { + using VecT = typename TypeParam::VecT; + constexpr static auto size = TypeParam::GetSizeAt(0); + + VecT full_vec{size}; + full_vec.resize(full_vec.capacity()); + + VecT nonfull_vec{size}; + nonfull_vec.reserve(size + 1); + + auto tester = testing::MakeExceptionSafetyTester().WithContracts( + InlinedVectorInvariants<VecT>); + + EXPECT_TRUE(tester.WithInitialValue(nonfull_vec).Test([](VecT* vec) { + vec->emplace_back(); // + })); + + EXPECT_TRUE(tester.WithInitialValue(full_vec).Test([](VecT* vec) { + vec->emplace_back(); // + })); +} + +TYPED_TEST(OneSizeTest, PopBack) { + using VecT = typename TypeParam::VecT; + constexpr static auto size = TypeParam::GetSizeAt(0); + + auto tester = testing::MakeExceptionSafetyTester() + .WithInitialValue(VecT{size}) + .WithContracts(NoThrowGuarantee<VecT>); + + EXPECT_TRUE(tester.Test([](VecT* vec) { + vec->pop_back(); // + })); +} + +TYPED_TEST(OneSizeTest, Erase) { + using VecT = typename TypeParam::VecT; + constexpr static auto size = TypeParam::GetSizeAt(0); + + auto tester = testing::MakeExceptionSafetyTester() + .WithInitialValue(VecT{size}) + .WithContracts(InlinedVectorInvariants<VecT>); + + EXPECT_TRUE(tester.Test([](VecT* vec) { + auto it = vec->begin(); + vec->erase(it); + })); + EXPECT_TRUE(tester.Test([](VecT* vec) { + auto it = vec->begin() + (vec->size() / 2); + vec->erase(it); + })); + EXPECT_TRUE(tester.Test([](VecT* vec) { + auto it = vec->begin() + (vec->size() - 1); + vec->erase(it); + })); + + EXPECT_TRUE(tester.Test([](VecT* vec) { + auto it = vec->begin(); + vec->erase(it, it + 1); + })); + EXPECT_TRUE(tester.Test([](VecT* vec) { + auto it = vec->begin() + (vec->size() / 2); + vec->erase(it, it + 1); + })); + EXPECT_TRUE(tester.Test([](VecT* vec) { + auto it = vec->begin() + (vec->size() - 1); + vec->erase(it, it + 1); + })); +} + +TYPED_TEST(OneSizeTest, Clear) { + using VecT = typename TypeParam::VecT; + constexpr static auto size = TypeParam::GetSizeAt(0); + + auto tester = testing::MakeExceptionSafetyTester() + .WithInitialValue(VecT{size}) + .WithContracts(NoThrowGuarantee<VecT>); + + EXPECT_TRUE(tester.Test([](VecT* vec) { + vec->clear(); // + })); +} + +TYPED_TEST(TwoSizeTest, Reserve) { + using VecT = typename TypeParam::VecT; + constexpr static auto from_size = TypeParam::GetSizeAt(0); + constexpr static auto to_capacity = TypeParam::GetSizeAt(1); + + auto tester = testing::MakeExceptionSafetyTester() + .WithInitialValue(VecT{from_size}) + .WithContracts(InlinedVectorInvariants<VecT>); + + EXPECT_TRUE(tester.Test([](VecT* vec) { + vec->reserve(to_capacity); // + })); +} + +TYPED_TEST(OneSizeTest, ShrinkToFit) { + using VecT = typename TypeParam::VecT; + constexpr static auto size = TypeParam::GetSizeAt(0); + + auto tester = testing::MakeExceptionSafetyTester() + .WithInitialValue(VecT{size}) + .WithContracts(InlinedVectorInvariants<VecT>); + + EXPECT_TRUE(tester.Test([](VecT* vec) { + vec->shrink_to_fit(); // + })); +} + +TYPED_TEST(TwoSizeTest, Swap) { + using VecT = typename TypeParam::VecT; + constexpr static auto from_size = TypeParam::GetSizeAt(0); + constexpr static auto to_size = TypeParam::GetSizeAt(1); + + auto tester = testing::MakeExceptionSafetyTester() + .WithInitialValue(VecT{from_size}) + .WithContracts(InlinedVectorInvariants<VecT>); + + EXPECT_TRUE(tester.Test([](VecT* vec) { + VecT other_vec{to_size}; + vec->swap(other_vec); + })); + + EXPECT_TRUE(tester.Test([](VecT* vec) { + using std::swap; + VecT other_vec{to_size}; + swap(*vec, other_vec); + })); +} + +} // namespace |