tvl-depot/absl/container/node_hash_set_test.cc
Abseil Team 48cd2c3f35 Export of internal Abseil changes.
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4eacae3ff1b14b1d309e8092185bc10e8a6203cf by Derek Mauro <dmauro@google.com>:

Release SwissTable - a fast, efficient, cache-friendly hash table.

https://www.youtube.com/watch?v=ncHmEUmJZf4

PiperOrigin-RevId: 214816527

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df8c3dfab3cfb2f4365909a84d0683b193cfbb11 by Derek Mauro <dmauro@google.com>:

Internal change

PiperOrigin-RevId: 214785288

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1eabd5266bbcebc33eecc91e5309b751856a75c8 by Abseil Team <absl-team@google.com>:

Internal change

PiperOrigin-RevId: 214722931

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2ebbfac950f83146b46253038e7dd7dcde9f2951 by Derek Mauro <dmauro@google.com>:

Internal change

PiperOrigin-RevId: 214701684
GitOrigin-RevId: 4eacae3ff1b14b1d309e8092185bc10e8a6203cf
Change-Id: I9ba64e395b22ad7863213d157b8019b082adc19d
2018-09-27 15:28:12 -04:00

103 lines
3.7 KiB
C++

// 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.
#include "absl/container/node_hash_set.h"
#include "absl/container/internal/unordered_set_constructor_test.h"
#include "absl/container/internal/unordered_set_lookup_test.h"
#include "absl/container/internal/unordered_set_modifiers_test.h"
namespace absl {
namespace container_internal {
namespace {
using ::absl::container_internal::hash_internal::Enum;
using ::absl::container_internal::hash_internal::EnumClass;
using ::testing::Pointee;
using ::testing::UnorderedElementsAre;
using SetTypes = ::testing::Types<
node_hash_set<int, StatefulTestingHash, StatefulTestingEqual, Alloc<int>>,
node_hash_set<std::string, StatefulTestingHash, StatefulTestingEqual,
Alloc<int>>,
node_hash_set<Enum, StatefulTestingHash, StatefulTestingEqual, Alloc<Enum>>,
node_hash_set<EnumClass, StatefulTestingHash, StatefulTestingEqual,
Alloc<EnumClass>>>;
INSTANTIATE_TYPED_TEST_CASE_P(NodeHashSet, ConstructorTest, SetTypes);
INSTANTIATE_TYPED_TEST_CASE_P(NodeHashSet, LookupTest, SetTypes);
INSTANTIATE_TYPED_TEST_CASE_P(NodeHashSet, ModifiersTest, SetTypes);
TEST(NodeHashSet, MoveableNotCopyableCompiles) {
node_hash_set<std::unique_ptr<void*>> t;
node_hash_set<std::unique_ptr<void*>> u;
u = std::move(t);
}
TEST(NodeHashSet, MergeExtractInsert) {
struct Hash {
size_t operator()(const std::unique_ptr<int>& p) const { return *p; }
};
struct Eq {
bool operator()(const std::unique_ptr<int>& a,
const std::unique_ptr<int>& b) const {
return *a == *b;
}
};
absl::node_hash_set<std::unique_ptr<int>, Hash, Eq> set1, set2;
set1.insert(absl::make_unique<int>(7));
set1.insert(absl::make_unique<int>(17));
set2.insert(absl::make_unique<int>(7));
set2.insert(absl::make_unique<int>(19));
EXPECT_THAT(set1, UnorderedElementsAre(Pointee(7), Pointee(17)));
EXPECT_THAT(set2, UnorderedElementsAre(Pointee(7), Pointee(19)));
set1.merge(set2);
EXPECT_THAT(set1, UnorderedElementsAre(Pointee(7), Pointee(17), Pointee(19)));
EXPECT_THAT(set2, UnorderedElementsAre(Pointee(7)));
auto node = set1.extract(absl::make_unique<int>(7));
EXPECT_TRUE(node);
EXPECT_THAT(node.value(), Pointee(7));
EXPECT_THAT(set1, UnorderedElementsAre(Pointee(17), Pointee(19)));
auto insert_result = set2.insert(std::move(node));
EXPECT_FALSE(node);
EXPECT_FALSE(insert_result.inserted);
EXPECT_TRUE(insert_result.node);
EXPECT_THAT(insert_result.node.value(), Pointee(7));
EXPECT_EQ(**insert_result.position, 7);
EXPECT_NE(insert_result.position->get(), insert_result.node.value().get());
EXPECT_THAT(set2, UnorderedElementsAre(Pointee(7)));
node = set1.extract(absl::make_unique<int>(17));
EXPECT_TRUE(node);
EXPECT_THAT(node.value(), Pointee(17));
EXPECT_THAT(set1, UnorderedElementsAre(Pointee(19)));
node.value() = absl::make_unique<int>(23);
insert_result = set2.insert(std::move(node));
EXPECT_FALSE(node);
EXPECT_TRUE(insert_result.inserted);
EXPECT_FALSE(insert_result.node);
EXPECT_EQ(**insert_result.position, 23);
EXPECT_THAT(set2, UnorderedElementsAre(Pointee(7), Pointee(23)));
}
} // namespace
} // namespace container_internal
} // namespace absl