2 * Copyright 2014 Facebook, Inc.
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
8 * http://www.apache.org/licenses/LICENSE-2.0
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
17 #include <folly/Memory.h>
18 #include <folly/Arena.h>
19 #include <folly/String.h>
21 #include <glog/logging.h>
22 #include <gtest/gtest.h>
24 #include <type_traits>
26 using namespace folly;
28 template <std::size_t> struct T {};
29 template <std::size_t> struct S {};
30 template <std::size_t> struct P {};
32 TEST(as_stl_allocator, sanity_check) {
33 typedef StlAllocator<SysArena, int> stl_arena_alloc;
35 EXPECT_TRUE((std::is_same<
36 as_stl_allocator<int, SysArena>::type,
40 EXPECT_TRUE((std::is_same<
41 as_stl_allocator<int, stl_arena_alloc>::type,
46 TEST(StlAllocator, void_allocator) {
47 typedef StlAllocator<SysArena, void> void_allocator;
49 void_allocator valloc(&arena);
51 typedef void_allocator::rebind<int>::other int_allocator;
52 int_allocator ialloc(valloc);
54 auto i = std::allocate_shared<int>(ialloc, 10);
55 ASSERT_NE(nullptr, i.get());
58 ASSERT_EQ(nullptr, i.get());
61 TEST(rebind_allocator, sanity_check) {
62 std::allocator<long> alloc;
64 auto i = std::allocate_shared<int>(
65 rebind_allocator<int, decltype(alloc)>(alloc), 10
67 ASSERT_NE(nullptr, i.get());
70 ASSERT_EQ(nullptr, i.get());
72 auto d = std::allocate_shared<double>(
73 rebind_allocator<double>(alloc), 5.6
75 ASSERT_NE(nullptr, d.get());
78 ASSERT_EQ(nullptr, d.get());
80 auto s = std::allocate_shared<std::string>(
81 rebind_allocator<std::string>(alloc), "HELLO, WORLD"
83 ASSERT_NE(nullptr, s.get());
84 EXPECT_EQ("HELLO, WORLD", *s);
86 ASSERT_EQ(nullptr, s.get());
89 int main(int argc, char **argv) {
90 FLAGS_logtostderr = true;
91 google::InitGoogleLogging(argv[0]);
92 testing::InitGoogleTest(&argc, argv);
94 return RUN_ALL_TESTS();