1 /*
2  Mock allocator.
3 
4  Copyright (c) 2014, Victor Zverovich
5  All rights reserved.
6 
7  Redistribution and use in source and binary forms, with or without
8  modification, are permitted provided that the following conditions are met:
9 
10  1. Redistributions of source code must retain the above copyright notice, this
11     list of conditions and the following disclaimer.
12  2. Redistributions in binary form must reproduce the above copyright notice,
13     this list of conditions and the following disclaimer in the documentation
14     and/or other materials provided with the distribution.
15 
16  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
17  ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
18  WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
19  DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
20  ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
21  (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
22  LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
23  ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
24  (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
25  SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
26  */
27 
28 #ifndef FMT_MOCK_ALLOCATOR_H_
29 #define FMT_MOCK_ALLOCATOR_H_
30 
31 #include "gmock/gmock.h"
32 
33 template <typename T>
34 class MockAllocator {
35  public:
MockAllocator()36   MockAllocator() {}
MockAllocator(const MockAllocator &)37   MockAllocator(const MockAllocator &) {}
38   typedef T value_type;
39   MOCK_METHOD2_T(allocate, T *(std::size_t n, const T *h));
40   MOCK_METHOD2_T(deallocate, void (T *p, std::size_t n));
41 };
42 
43 template <typename Allocator>
44 class AllocatorRef {
45  private:
46   Allocator *alloc_;
47 
48  public:
49   typedef typename Allocator::value_type value_type;
50 
alloc_(alloc)51   explicit AllocatorRef(Allocator *alloc = 0) : alloc_(alloc) {}
52 
AllocatorRef(const AllocatorRef & other)53   AllocatorRef(const AllocatorRef &other) : alloc_(other.alloc_) {}
54 
55   AllocatorRef& operator=(const AllocatorRef &other) {
56     alloc_ = other.alloc_;
57     return *this;
58   }
59 
60 #if FMT_USE_RVALUE_REFERENCES
61  private:
move(AllocatorRef & other)62   void move(AllocatorRef &other) {
63     alloc_ = other.alloc_;
64     other.alloc_ = 0;
65   }
66 
67  public:
AllocatorRef(AllocatorRef && other)68   AllocatorRef(AllocatorRef &&other) {
69     move(other);
70   }
71 
72   AllocatorRef& operator=(AllocatorRef &&other) {
73     assert(this != &other);
74     move(other);
75     return *this;
76   }
77 #endif
78 
get()79   Allocator *get() const { return alloc_; }
80 
allocate(std::size_t n,const value_type * h)81   value_type *allocate(std::size_t n,  const value_type *h) {
82     return alloc_->allocate(n, h);
83   }
deallocate(value_type * p,std::size_t n)84   void deallocate(value_type *p, std::size_t n) { alloc_->deallocate(p, n); }
85 };
86 
87 #endif  // FMT_MOCK_ALLOCATOR_H_
88