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100644 index 00000000..f370b249 --- /dev/null +++ b/absl/container/internal/unordered_set_constructor_test.h @@ -0,0 +1,411 @@ +// Copyright 2018 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 +// +// http://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. + +#ifndef ABSL_CONTAINER_INTERNAL_UNORDERED_SET_CONSTRUCTOR_TEST_H_ +#define ABSL_CONTAINER_INTERNAL_UNORDERED_SET_CONSTRUCTOR_TEST_H_ + +#include +#include + +#include "gmock/gmock.h" +#include "gtest/gtest.h" +#include "absl/container/internal/hash_generator_testing.h" +#include "absl/container/internal/hash_policy_testing.h" + +namespace absl { +inline namespace lts_2018_12_18 { +namespace container_internal { + +template +class ConstructorTest : public ::testing::Test {}; + +TYPED_TEST_CASE_P(ConstructorTest); + +TYPED_TEST_P(ConstructorTest, NoArgs) { + TypeParam m; + EXPECT_TRUE(m.empty()); + EXPECT_THAT(keys(m), ::testing::UnorderedElementsAre()); +} + +TYPED_TEST_P(ConstructorTest, BucketCount) { + TypeParam m(123); + EXPECT_TRUE(m.empty()); + EXPECT_THAT(keys(m), ::testing::UnorderedElementsAre()); + EXPECT_GE(m.bucket_count(), 123); +} + +TYPED_TEST_P(ConstructorTest, BucketCountHash) { + using H = typename TypeParam::hasher; + H hasher; + TypeParam m(123, hasher); + EXPECT_EQ(m.hash_function(), hasher); + EXPECT_TRUE(m.empty()); + EXPECT_THAT(keys(m), ::testing::UnorderedElementsAre()); + EXPECT_GE(m.bucket_count(), 123); +} + +TYPED_TEST_P(ConstructorTest, BucketCountHashEqual) { + using H = typename TypeParam::hasher; + using E = typename TypeParam::key_equal; + H hasher; + E equal; + TypeParam m(123, hasher, equal); + EXPECT_EQ(m.hash_function(), hasher); + EXPECT_EQ(m.key_eq(), equal); + EXPECT_TRUE(m.empty()); + EXPECT_THAT(keys(m), ::testing::UnorderedElementsAre()); + EXPECT_GE(m.bucket_count(), 123); +} + +TYPED_TEST_P(ConstructorTest, BucketCountHashEqualAlloc) { + using H = typename TypeParam::hasher; + using E = typename TypeParam::key_equal; + using A = typename TypeParam::allocator_type; + H hasher; + E equal; + A alloc(0); + TypeParam m(123, hasher, equal, alloc); + EXPECT_EQ(m.hash_function(), hasher); + EXPECT_EQ(m.key_eq(), equal); + EXPECT_EQ(m.get_allocator(), alloc); + EXPECT_TRUE(m.empty()); + EXPECT_THAT(keys(m), ::testing::UnorderedElementsAre()); + EXPECT_GE(m.bucket_count(), 123); + + const auto& cm = m; + EXPECT_EQ(cm.hash_function(), hasher); + EXPECT_EQ(cm.key_eq(), equal); + EXPECT_EQ(cm.get_allocator(), alloc); + EXPECT_TRUE(cm.empty()); + EXPECT_THAT(keys(cm), ::testing::UnorderedElementsAre()); + EXPECT_GE(cm.bucket_count(), 123); +} + +TYPED_TEST_P(ConstructorTest, BucketCountAlloc) { +#if defined(UNORDERED_SET_CXX14) || defined(UNORDERED_SET_CXX17) + using A = typename TypeParam::allocator_type; + A alloc(0); + TypeParam m(123, alloc); + EXPECT_EQ(m.get_allocator(), alloc); + EXPECT_TRUE(m.empty()); + EXPECT_THAT(keys(m), ::testing::UnorderedElementsAre()); + EXPECT_GE(m.bucket_count(), 123); +#endif +} + +TYPED_TEST_P(ConstructorTest, BucketCountHashAlloc) { +#if defined(UNORDERED_SET_CXX14) || defined(UNORDERED_SET_CXX17) + using H = typename TypeParam::hasher; + using A = typename TypeParam::allocator_type; + H hasher; + A alloc(0); + TypeParam m(123, hasher, alloc); + EXPECT_EQ(m.hash_function(), hasher); + EXPECT_EQ(m.get_allocator(), alloc); + EXPECT_TRUE(m.empty()); + EXPECT_THAT(keys(m), ::testing::UnorderedElementsAre()); + EXPECT_GE(m.bucket_count(), 123); +#endif +} + +TYPED_TEST_P(ConstructorTest, BucketAlloc) { +#if ABSL_UNORDERED_SUPPORTS_ALLOC_CTORS + using A = typename TypeParam::allocator_type; + A alloc(0); + TypeParam m(alloc); + EXPECT_EQ(m.get_allocator(), alloc); + EXPECT_TRUE(m.empty()); + EXPECT_THAT(keys(m), ::testing::UnorderedElementsAre()); +#endif +} + +TYPED_TEST_P(ConstructorTest, InputIteratorBucketHashEqualAlloc) { + using T = hash_internal::GeneratedType; + using H = typename TypeParam::hasher; + using E = typename TypeParam::key_equal; + using A = typename TypeParam::allocator_type; + H hasher; + E equal; + A alloc(0); + std::vector values; + for (size_t i = 0; i != 10; ++i) + values.push_back(hash_internal::Generator()()); + TypeParam m(values.begin(), values.end(), 123, hasher, equal, alloc); + EXPECT_EQ(m.hash_function(), hasher); + EXPECT_EQ(m.key_eq(), equal); + EXPECT_EQ(m.get_allocator(), alloc); + EXPECT_THAT(keys(m), ::testing::UnorderedElementsAreArray(values)); + EXPECT_GE(m.bucket_count(), 123); +} + +TYPED_TEST_P(ConstructorTest, InputIteratorBucketAlloc) { +#if defined(UNORDERED_SET_CXX14) || defined(UNORDERED_SET_CXX17) + using T = hash_internal::GeneratedType; + using A = typename TypeParam::allocator_type; + A alloc(0); + std::vector values; + for (size_t i = 0; i != 10; ++i) + values.push_back(hash_internal::Generator()()); + TypeParam m(values.begin(), values.end(), 123, alloc); + EXPECT_EQ(m.get_allocator(), alloc); + EXPECT_THAT(keys(m), ::testing::UnorderedElementsAreArray(values)); + EXPECT_GE(m.bucket_count(), 123); +#endif +} + +TYPED_TEST_P(ConstructorTest, InputIteratorBucketHashAlloc) { +#if defined(UNORDERED_SET_CXX14) || defined(UNORDERED_SET_CXX17) + using T = hash_internal::GeneratedType; + using H = typename TypeParam::hasher; + using A = typename TypeParam::allocator_type; + H hasher; + A alloc(0); + std::vector values; + for (size_t i = 0; i != 10; ++i) + values.push_back(hash_internal::Generator()()); + TypeParam m(values.begin(), values.end(), 123, hasher, alloc); + EXPECT_EQ(m.hash_function(), hasher); + EXPECT_EQ(m.get_allocator(), alloc); + EXPECT_THAT(keys(m), ::testing::UnorderedElementsAreArray(values)); + EXPECT_GE(m.bucket_count(), 123); +#endif +} + +TYPED_TEST_P(ConstructorTest, CopyConstructor) { + using T = hash_internal::GeneratedType; + using H = typename TypeParam::hasher; + using E = typename TypeParam::key_equal; + using A = typename TypeParam::allocator_type; + H hasher; + E equal; + A alloc(0); + TypeParam m(123, hasher, equal, alloc); + for (size_t i = 0; i != 10; ++i) m.insert(hash_internal::Generator()()); + TypeParam n(m); + EXPECT_EQ(m.hash_function(), n.hash_function()); + EXPECT_EQ(m.key_eq(), n.key_eq()); + EXPECT_EQ(m.get_allocator(), n.get_allocator()); + EXPECT_EQ(m, n); +} + +TYPED_TEST_P(ConstructorTest, CopyConstructorAlloc) { +#if ABSL_UNORDERED_SUPPORTS_ALLOC_CTORS + using T = hash_internal::GeneratedType; + using H = typename TypeParam::hasher; + using E = typename TypeParam::key_equal; + using A = typename TypeParam::allocator_type; + H hasher; + E equal; + A alloc(0); + TypeParam m(123, hasher, equal, alloc); + for (size_t i = 0; i != 10; ++i) m.insert(hash_internal::Generator()()); + TypeParam n(m, A(11)); + EXPECT_EQ(m.hash_function(), n.hash_function()); + EXPECT_EQ(m.key_eq(), n.key_eq()); + EXPECT_NE(m.get_allocator(), n.get_allocator()); + EXPECT_EQ(m, n); +#endif +} + +// TODO(alkis): Test non-propagating allocators on copy constructors. + +TYPED_TEST_P(ConstructorTest, MoveConstructor) { + using T = hash_internal::GeneratedType; + using H = typename TypeParam::hasher; + using E = typename TypeParam::key_equal; + using A = typename TypeParam::allocator_type; + H hasher; + E equal; + A alloc(0); + TypeParam m(123, hasher, equal, alloc); + for (size_t i = 0; i != 10; ++i) m.insert(hash_internal::Generator()()); + TypeParam t(m); + TypeParam n(std::move(t)); + EXPECT_EQ(m.hash_function(), n.hash_function()); + EXPECT_EQ(m.key_eq(), n.key_eq()); + EXPECT_EQ(m.get_allocator(), n.get_allocator()); + EXPECT_EQ(m, n); +} + +TYPED_TEST_P(ConstructorTest, MoveConstructorAlloc) { +#if ABSL_UNORDERED_SUPPORTS_ALLOC_CTORS + using T = hash_internal::GeneratedType; + using H = typename TypeParam::hasher; + using E = typename TypeParam::key_equal; + using A = typename TypeParam::allocator_type; + H hasher; + E equal; + A alloc(0); + TypeParam m(123, hasher, equal, alloc); + for (size_t i = 0; i != 10; ++i) m.insert(hash_internal::Generator()()); + TypeParam t(m); + TypeParam n(std::move(t), A(1)); + EXPECT_EQ(m.hash_function(), n.hash_function()); + EXPECT_EQ(m.key_eq(), n.key_eq()); + EXPECT_NE(m.get_allocator(), n.get_allocator()); + EXPECT_EQ(m, n); +#endif +} + +// TODO(alkis): Test non-propagating allocators on move constructors. + +TYPED_TEST_P(ConstructorTest, InitializerListBucketHashEqualAlloc) { + using T = hash_internal::GeneratedType; + hash_internal::Generator gen; + std::initializer_list values = {gen(), gen(), gen(), gen(), gen()}; + using H = typename TypeParam::hasher; + using E = typename TypeParam::key_equal; + using A = typename TypeParam::allocator_type; + H hasher; + E equal; + A alloc(0); + TypeParam m(values, 123, hasher, equal, alloc); + EXPECT_EQ(m.hash_function(), hasher); + EXPECT_EQ(m.key_eq(), equal); + EXPECT_EQ(m.get_allocator(), alloc); + EXPECT_THAT(keys(m), ::testing::UnorderedElementsAreArray(values)); + EXPECT_GE(m.bucket_count(), 123); +} + +TYPED_TEST_P(ConstructorTest, InitializerListBucketAlloc) { +#if defined(UNORDERED_SET_CXX14) || defined(UNORDERED_SET_CXX17) + using T = hash_internal::GeneratedType; + using A = typename TypeParam::allocator_type; + hash_internal::Generator gen; + std::initializer_list values = {gen(), gen(), gen(), gen(), gen()}; + A alloc(0); + TypeParam m(values, 123, alloc); + EXPECT_EQ(m.get_allocator(), alloc); + EXPECT_THAT(keys(m), ::testing::UnorderedElementsAreArray(values)); + EXPECT_GE(m.bucket_count(), 123); +#endif +} + +TYPED_TEST_P(ConstructorTest, InitializerListBucketHashAlloc) { +#if defined(UNORDERED_SET_CXX14) || defined(UNORDERED_SET_CXX17) + using T = hash_internal::GeneratedType; + using H = typename TypeParam::hasher; + using A = typename TypeParam::allocator_type; + H hasher; + A alloc(0); + hash_internal::Generator gen; + std::initializer_list values = {gen(), gen(), gen(), gen(), gen()}; + TypeParam m(values, 123, hasher, alloc); + EXPECT_EQ(m.hash_function(), hasher); + EXPECT_EQ(m.get_allocator(), alloc); + EXPECT_THAT(keys(m), ::testing::UnorderedElementsAreArray(values)); + EXPECT_GE(m.bucket_count(), 123); +#endif +} + +TYPED_TEST_P(ConstructorTest, Assignment) { + using T = hash_internal::GeneratedType; + using H = typename TypeParam::hasher; + using E = typename TypeParam::key_equal; + using A = typename TypeParam::allocator_type; + H hasher; + E equal; + A alloc(0); + hash_internal::Generator gen; + TypeParam m({gen(), gen(), gen()}, 123, hasher, equal, alloc); + TypeParam n; + n = m; + EXPECT_EQ(m.hash_function(), n.hash_function()); + EXPECT_EQ(m.key_eq(), n.key_eq()); + EXPECT_EQ(m, n); +} + +// TODO(alkis): Test [non-]propagating allocators on move/copy assignments +// (it depends on traits). + +TYPED_TEST_P(ConstructorTest, MoveAssignment) { + using T = hash_internal::GeneratedType; + using H = typename TypeParam::hasher; + using E = typename TypeParam::key_equal; + using A = typename TypeParam::allocator_type; + H hasher; + E equal; + A alloc(0); + hash_internal::Generator gen; + TypeParam m({gen(), gen(), gen()}, 123, hasher, equal, alloc); + TypeParam t(m); + TypeParam n; + n = std::move(t); + EXPECT_EQ(m.hash_function(), n.hash_function()); + EXPECT_EQ(m.key_eq(), n.key_eq()); + EXPECT_EQ(m, n); +} + +TYPED_TEST_P(ConstructorTest, AssignmentFromInitializerList) { + using T = hash_internal::GeneratedType; + hash_internal::Generator gen; + std::initializer_list values = {gen(), gen(), gen(), gen(), gen()}; + TypeParam m; + m = values; + EXPECT_THAT(keys(m), ::testing::UnorderedElementsAreArray(values)); +} + +TYPED_TEST_P(ConstructorTest, AssignmentOverwritesExisting) { + using T = hash_internal::GeneratedType; + hash_internal::Generator gen; + TypeParam m({gen(), gen(), gen()}); + TypeParam n({gen()}); + n = m; + EXPECT_EQ(m, n); +} + +TYPED_TEST_P(ConstructorTest, MoveAssignmentOverwritesExisting) { + using T = hash_internal::GeneratedType; + hash_internal::Generator gen; + TypeParam m({gen(), gen(), gen()}); + TypeParam t(m); + TypeParam n({gen()}); + n = std::move(t); + EXPECT_EQ(m, n); +} + +TYPED_TEST_P(ConstructorTest, AssignmentFromInitializerListOverwritesExisting) { + using T = hash_internal::GeneratedType; + hash_internal::Generator gen; + std::initializer_list values = {gen(), gen(), gen(), gen(), gen()}; + TypeParam m; + m = values; + EXPECT_THAT(keys(m), ::testing::UnorderedElementsAreArray(values)); +} + +TYPED_TEST_P(ConstructorTest, AssignmentOnSelf) { + using T = hash_internal::GeneratedType; + hash_internal::Generator gen; + std::initializer_list values = {gen(), gen(), gen(), gen(), gen()}; + TypeParam m(values); + m = *&m; // Avoid -Wself-assign. + EXPECT_THAT(keys(m), ::testing::UnorderedElementsAreArray(values)); +} + +REGISTER_TYPED_TEST_CASE_P( + ConstructorTest, NoArgs, BucketCount, BucketCountHash, BucketCountHashEqual, + BucketCountHashEqualAlloc, BucketCountAlloc, BucketCountHashAlloc, + BucketAlloc, InputIteratorBucketHashEqualAlloc, InputIteratorBucketAlloc, + InputIteratorBucketHashAlloc, CopyConstructor, CopyConstructorAlloc, + MoveConstructor, MoveConstructorAlloc, InitializerListBucketHashEqualAlloc, + InitializerListBucketAlloc, InitializerListBucketHashAlloc, Assignment, + MoveAssignment, AssignmentFromInitializerList, + AssignmentOverwritesExisting, MoveAssignmentOverwritesExisting, + AssignmentFromInitializerListOverwritesExisting, AssignmentOnSelf); + +} // namespace container_internal +} // inline namespace lts_2018_12_18 +} // namespace absl + +#endif // ABSL_CONTAINER_INTERNAL_UNORDERED_SET_CONSTRUCTOR_TEST_H_ -- cgit v1.2.3