1 // Copyright 2018 The Abseil Authors.
2 //
3 // Licensed under the Apache License, Version 2.0 (the "License");
4 // you may not use this file except in compliance with the License.
5 // You may obtain a copy of the License at
6 //
7 // https://www.apache.org/licenses/LICENSE-2.0
8 //
9 // Unless required by applicable law or agreed to in writing, software
10 // distributed under the License is distributed on an "AS IS" BASIS,
11 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12 // See the License for the specific language governing permissions and
13 // limitations under the License.
14
15 #include "absl/container/internal/node_hash_policy.h"
16
17 #include <memory>
18
19 #include "gmock/gmock.h"
20 #include "gtest/gtest.h"
21 #include "absl/container/internal/hash_policy_traits.h"
22
23 namespace absl {
24 ABSL_NAMESPACE_BEGIN
25 namespace container_internal {
26 namespace {
27
28 using ::testing::Pointee;
29
30 struct Policy : node_hash_policy<int&, Policy> {
31 using key_type = int;
32 using init_type = int;
33
34 template <class Alloc>
new_elementabsl::container_internal::__anonb586b88f0111::Policy35 static int* new_element(Alloc* alloc, int value) {
36 return new int(value);
37 }
38
39 template <class Alloc>
delete_elementabsl::container_internal::__anonb586b88f0111::Policy40 static void delete_element(Alloc* alloc, int* elem) {
41 delete elem;
42 }
43 };
44
45 using NodePolicy = hash_policy_traits<Policy>;
46
47 struct NodeTest : ::testing::Test {
48 std::allocator<int> alloc;
49 int n = 53;
50 int* a = &n;
51 };
52
TEST_F(NodeTest,ConstructDestroy)53 TEST_F(NodeTest, ConstructDestroy) {
54 NodePolicy::construct(&alloc, &a, 42);
55 EXPECT_THAT(a, Pointee(42));
56 NodePolicy::destroy(&alloc, &a);
57 }
58
TEST_F(NodeTest,transfer)59 TEST_F(NodeTest, transfer) {
60 int s = 42;
61 int* b = &s;
62 NodePolicy::transfer(&alloc, &a, &b);
63 EXPECT_EQ(&s, a);
64 }
65
66 } // namespace
67 } // namespace container_internal
68 ABSL_NAMESPACE_END
69 } // namespace absl
70