1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
|
// Copyright 2019 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
//
// https://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 <memory>
#include "gtest/gtest.h"
#include "absl/base/internal/exception_safety_testing.h"
#include "absl/container/inlined_vector.h"
namespace {
constexpr size_t kInlinedCapacity = 4;
constexpr size_t kLargeSize = kInlinedCapacity * 2;
constexpr size_t kSmallSize = kInlinedCapacity / 2;
using Thrower = testing::ThrowingValue<>;
using MovableThrower = testing::ThrowingValue<testing::TypeSpec::kNoThrowMove>;
using ThrowAlloc = testing::ThrowingAllocator<Thrower>;
using ThrowerVec = absl::InlinedVector<Thrower, kInlinedCapacity>;
using MovableThrowerVec = absl::InlinedVector<MovableThrower, kInlinedCapacity>;
using ThrowAllocThrowerVec =
absl::InlinedVector<Thrower, kInlinedCapacity, ThrowAlloc>;
using ThrowAllocMovableThrowerVec =
absl::InlinedVector<MovableThrower, kInlinedCapacity, ThrowAlloc>;
// In GCC, if an element of a `std::initializer_list` throws during construction
// the elements that were constructed before it are not destroyed. This causes
// incorrect exception safety test failures. Thus, `testing::nothrow_ctor` is
// required. See: https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66139
#define ABSL_INTERNAL_MAKE_INIT_LIST(T, N) \
(N > kInlinedCapacity \
? std::initializer_list<T>{T(0, testing::nothrow_ctor), \
T(1, testing::nothrow_ctor), \
T(2, testing::nothrow_ctor), \
T(3, testing::nothrow_ctor), \
T(4, testing::nothrow_ctor), \
T(5, testing::nothrow_ctor), \
T(6, testing::nothrow_ctor), \
T(7, testing::nothrow_ctor)} \
\
: std::initializer_list<T>{T(0, testing::nothrow_ctor), \
T(1, testing::nothrow_ctor)})
static_assert((kLargeSize == 8 || kSmallSize == 2),
"Must update ABSL_INTERNAL_MAKE_INIT_LIST(...).");
template <typename TheVecT, size_t... TheSizes>
class TestParams {
public:
using VecT = TheVecT;
constexpr static size_t GetSizeAt(size_t i) { return kSizes[1 + i]; }
private:
constexpr static size_t kSizes[1 + sizeof...(TheSizes)] = {1, TheSizes...};
};
using NoSizeTestParams =
::testing::Types<TestParams<ThrowerVec>, TestParams<MovableThrowerVec>,
TestParams<ThrowAllocThrowerVec>,
TestParams<ThrowAllocMovableThrowerVec>>;
using OneSizeTestParams =
::testing::Types<TestParams<ThrowerVec, kLargeSize>,
TestParams<ThrowerVec, kSmallSize>,
TestParams<MovableThrowerVec, kLargeSize>,
TestParams<MovableThrowerVec, kSmallSize>,
TestParams<ThrowAllocThrowerVec, kLargeSize>,
TestParams<ThrowAllocThrowerVec, kSmallSize>,
TestParams<ThrowAllocMovableThrowerVec, kLargeSize>,
TestParams<ThrowAllocMovableThrowerVec, kSmallSize>>;
template <typename>
struct NoSizeTest : ::testing::Test {};
TYPED_TEST_SUITE(NoSizeTest, NoSizeTestParams);
template <typename>
struct OneSizeTest : ::testing::Test {};
TYPED_TEST_SUITE(OneSizeTest, OneSizeTestParams);
// Function that always returns false is correct, but refactoring is required
// for clarity. It's needed to express that, as a contract, certain operations
// should not throw at all. Execution of this function means an exception was
// thrown and thus the test should fail.
// TODO(johnsoncj): Add `testing::NoThrowGuarantee` to the framework
template <typename VecT>
bool NoThrowGuarantee(VecT* /* vec */) {
return false;
}
TYPED_TEST(NoSizeTest, DefaultConstructor) {
using VecT = typename TypeParam::VecT;
using allocator_type = typename VecT::allocator_type;
testing::TestThrowingCtor<VecT>();
testing::TestThrowingCtor<VecT>(allocator_type{});
}
TYPED_TEST(OneSizeTest, SizeConstructor) {
using VecT = typename TypeParam::VecT;
using allocator_type = typename VecT::allocator_type;
constexpr static auto size = TypeParam::GetSizeAt(0);
testing::TestThrowingCtor<VecT>(size);
testing::TestThrowingCtor<VecT>(size, allocator_type{});
}
TYPED_TEST(OneSizeTest, SizeRefConstructor) {
using VecT = typename TypeParam::VecT;
using value_type = typename VecT::value_type;
using allocator_type = typename VecT::allocator_type;
constexpr static auto size = TypeParam::GetSizeAt(0);
testing::TestThrowingCtor<VecT>(size, value_type{});
testing::TestThrowingCtor<VecT>(size, value_type{}, allocator_type{});
}
TYPED_TEST(OneSizeTest, InitializerListConstructor) {
using VecT = typename TypeParam::VecT;
using value_type = typename VecT::value_type;
using allocator_type = typename VecT::allocator_type;
constexpr static auto size = TypeParam::GetSizeAt(0);
testing::TestThrowingCtor<VecT>(
ABSL_INTERNAL_MAKE_INIT_LIST(value_type, size));
testing::TestThrowingCtor<VecT>(
ABSL_INTERNAL_MAKE_INIT_LIST(value_type, size), allocator_type{});
}
TYPED_TEST(OneSizeTest, RangeConstructor) {
using VecT = typename TypeParam::VecT;
using value_type = typename VecT::value_type;
using allocator_type = typename VecT::allocator_type;
constexpr static auto size = TypeParam::GetSizeAt(0);
std::array<value_type, size> arr{};
testing::TestThrowingCtor<VecT>(arr.begin(), arr.end());
testing::TestThrowingCtor<VecT>(arr.begin(), arr.end(), allocator_type{});
}
TYPED_TEST(OneSizeTest, CopyConstructor) {
using VecT = typename TypeParam::VecT;
using allocator_type = typename VecT::allocator_type;
constexpr static auto size = TypeParam::GetSizeAt(0);
VecT other_vec{size};
testing::TestThrowingCtor<VecT>(other_vec);
testing::TestThrowingCtor<VecT>(other_vec, allocator_type{});
}
TYPED_TEST(OneSizeTest, MoveConstructor) {
using VecT = typename TypeParam::VecT;
using allocator_type = typename VecT::allocator_type;
constexpr static auto size = TypeParam::GetSizeAt(0);
if (!absl::allocator_is_nothrow<allocator_type>::value) {
testing::TestThrowingCtor<VecT>(VecT{size});
testing::TestThrowingCtor<VecT>(VecT{size}, allocator_type{});
}
}
TYPED_TEST(OneSizeTest, PopBack) {
using VecT = typename TypeParam::VecT;
constexpr static auto size = TypeParam::GetSizeAt(0);
auto tester = testing::MakeExceptionSafetyTester()
.WithInitialValue(VecT(size))
.WithContracts(NoThrowGuarantee<VecT>);
EXPECT_TRUE(tester.Test([](VecT* vec) {
vec->pop_back(); //
}));
}
TYPED_TEST(OneSizeTest, Clear) {
using VecT = typename TypeParam::VecT;
constexpr static auto size = TypeParam::GetSizeAt(0);
auto tester = testing::MakeExceptionSafetyTester()
.WithInitialValue(VecT(size))
.WithContracts(NoThrowGuarantee<VecT>);
EXPECT_TRUE(tester.Test([](VecT* vec) {
vec->clear(); //
}));
}
} // namespace
|
