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authorGravatar Abseil Team <absl-team@google.com>2019-08-08 10:56:58 -0700
committerGravatar CJ Johnson <johnsoncj@google.com>2019-08-08 14:19:45 -0400
commitaa844899c937bde5d2b24f276b59997e5b668bde (patch)
treecd18e64150abc74b85bbbf6abf990f66fa47cacd /absl/container/inlined_vector_exception_safety_test.cc
parentfcb104594b0bb4b8ac306cb2f55ecdad40974683 (diff)
Creation of LTS branch "lts_2019_08_08"20190808
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Diffstat (limited to 'absl/container/inlined_vector_exception_safety_test.cc')
-rw-r--r--absl/container/inlined_vector_exception_safety_test.cc489
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diff --git a/absl/container/inlined_vector_exception_safety_test.cc b/absl/container/inlined_vector_exception_safety_test.cc
new file mode 100644
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+++ b/absl/container/inlined_vector_exception_safety_test.cc
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+// 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