1 // This file is part of OpenCV project.
2 // It is subject to the license terms in the LICENSE file found in the top-level directory
3 // of this distribution and at http://opencv.org/license.html.
5 // Copyright (C) 2018-2019 Intel Corporation
8 #include "test_precomp.hpp"
13 typedef ::testing::Types<int, cv::Point, cv::Rect> VectorRef_Test_Types;
15 template<typename T> struct VectorRefT: public ::testing::Test { using Type = T; };
17 TYPED_TEST_CASE(VectorRefT, VectorRef_Test_Types);
19 TYPED_TEST(VectorRefT, Reset_Valid)
21 using T = typename TestFixture::Type;
22 cv::detail::VectorRefT<T> ref; // vector ref created empty
23 EXPECT_NO_THROW(ref.reset()); // 1st reset is OK (initializes)
24 EXPECT_NO_THROW(ref.reset()); // 2nd reset is also OK (resets)
27 TYPED_TEST(VectorRefT, Reset_Invalid)
29 using T = typename TestFixture::Type;
30 std::vector<T> vec(42); // create a std::vector of 42 elements
31 cv::detail::VectorRefT<T> ref(vec); // RO_EXT (since reference is const)
32 EXPECT_ANY_THROW(ref.reset()); // data-bound vector ref can't be reset
35 TYPED_TEST(VectorRefT, ReadRef_External)
37 using T = typename TestFixture::Type;
38 const std::vector<T> vec(42); // create a std::vector of 42 elements
39 cv::detail::VectorRefT<T> ref(vec); // RO_EXT (since reference is const)
40 auto &vref = ref.rref();
41 EXPECT_EQ(vec.data(), vref.data());
42 EXPECT_EQ(vec.size(), vref.size());
45 TYPED_TEST(VectorRefT, ReadRef_Internal)
47 using T = typename TestFixture::Type;
48 cv::detail::VectorRefT<T> ref;
49 ref.reset(); // RW_OWN (reset on empty ref)
50 auto &vref = ref.rref(); // read access is valid for RW_OWN
51 EXPECT_EQ(0u, vref.size()); // by default vector is empty
54 TYPED_TEST(VectorRefT, WriteRef_External)
56 using T = typename TestFixture::Type;
57 std::vector<T> vec(42); // create a std::vector of 42 elements
58 cv::detail::VectorRefT<T> ref(vec); // RW_EXT (since reference is not const)
59 auto &vref = ref.wref(); // write access is valid with RW_EXT
60 EXPECT_EQ(vec.data(), vref.data());
61 EXPECT_EQ(vec.size(), vref.size());
64 TYPED_TEST(VectorRefT, WriteRef_Internal)
66 using T = typename TestFixture::Type;
67 cv::detail::VectorRefT<T> ref;
68 ref.reset(); // RW_OWN (reset on empty ref)
69 auto &vref = ref.wref(); // write access is valid for RW_OWN
70 EXPECT_EQ(0u, vref.size()); // empty vector by default
73 TYPED_TEST(VectorRefT, WriteToRO)
75 using T = typename TestFixture::Type;
76 const std::vector<T> vec(42); // create a std::vector of 42 elements
77 cv::detail::VectorRefT<T> ref(vec); // RO_EXT (since reference is const)
78 EXPECT_ANY_THROW(ref.wref());
81 TYPED_TEST(VectorRefT, ReadAfterWrite)
83 using T = typename TestFixture::Type;
84 std::vector<T> vec; // Initial data holder (empty vector)
85 cv::detail::VectorRefT<T> writer(vec); // RW_EXT
87 const auto& ro_ref = vec;
88 cv::detail::VectorRefT<T> reader(ro_ref); // RO_EXT
90 EXPECT_EQ(0u, writer.wref().size()); // Check the initial state
91 EXPECT_EQ(0u, reader.rref().size());
93 writer.wref().emplace_back(); // Check that write is successfull
94 EXPECT_EQ(1u, writer.wref().size());
96 EXPECT_EQ(1u, vec.size()); // Check that changes are reflected to the original container
97 EXPECT_EQ(1u, reader.rref().size()); // Check that changes are reflected to reader's view
99 EXPECT_EQ(T(), vec.at(0)); // Check the value (must be default-initialized)
100 EXPECT_EQ(T(), reader.rref().at(0));
101 EXPECT_EQ(T(), writer.wref().at(0));
104 template<typename T> struct VectorRefU: public ::testing::Test { using Type = T; };
106 TYPED_TEST_CASE(VectorRefU, VectorRef_Test_Types);
108 template<class T> struct custom_struct { T a; T b; };
110 TYPED_TEST(VectorRefU, Reset_Valid)
112 using T = typename TestFixture::Type;
113 cv::detail::VectorRef ref; // vector ref created empty
114 EXPECT_NO_THROW(ref.reset<T>()); // 1st reset is OK (initializes)
115 EXPECT_NO_THROW(ref.reset<T>()); // 2nd reset is also OK (resets)
117 EXPECT_ANY_THROW(ref.reset<custom_struct<T> >()); // type change is not allowed
120 TYPED_TEST(VectorRefU, Reset_Invalid)
122 using T = typename TestFixture::Type;
123 std::vector<T> vec(42); // create a std::vector of 42 elements
124 cv::detail::VectorRef ref(vec); // RO_EXT (since reference is const)
125 EXPECT_ANY_THROW(ref.reset<T>()); // data-bound vector ref can't be reset
128 TYPED_TEST(VectorRefU, ReadRef_External)
130 using T = typename TestFixture::Type;
131 const std::vector<T> vec(42); // create a std::vector of 42 elements
132 cv::detail::VectorRef ref(vec); // RO_EXT (since reference is const)
133 auto &vref = ref.rref<T>();
134 EXPECT_EQ(vec.data(), vref.data());
135 EXPECT_EQ(vec.size(), vref.size());
138 TYPED_TEST(VectorRefU, ReadRef_Internal)
140 using T = typename TestFixture::Type;
141 cv::detail::VectorRef ref;
142 ref.reset<T>(); // RW_OWN (reset on empty ref)
143 auto &vref = ref.rref<T>(); // read access is valid for RW_OWN
144 EXPECT_EQ(0u, vref.size()); // by default vector is empty
147 TYPED_TEST(VectorRefU, WriteRef_External)
149 using T = typename TestFixture::Type;
150 std::vector<T> vec(42); // create a std::vector of 42 elements
151 cv::detail::VectorRef ref(vec); // RW_EXT (since reference is not const)
152 auto &vref = ref.wref<T>(); // write access is valid with RW_EXT
153 EXPECT_EQ(vec.data(), vref.data());
154 EXPECT_EQ(vec.size(), vref.size());
157 TYPED_TEST(VectorRefU, WriteRef_Internal)
159 using T = typename TestFixture::Type;
160 cv::detail::VectorRef ref;
161 ref.reset<T>(); // RW_OWN (reset on empty ref)
162 auto &vref = ref.wref<T>(); // write access is valid for RW_OWN
163 EXPECT_EQ(0u, vref.size()); // empty vector by default
166 TYPED_TEST(VectorRefU, WriteToRO)
168 using T = typename TestFixture::Type;
169 const std::vector<T> vec(42); // create a std::vector of 42 elements
170 cv::detail::VectorRef ref(vec); // RO_EXT (since reference is const)
171 EXPECT_ANY_THROW(ref.wref<T>());
174 TYPED_TEST(VectorRefU, ReadAfterWrite)
176 using T = typename TestFixture::Type;
177 std::vector<T> vec; // Initial data holder (empty vector)
178 cv::detail::VectorRef writer(vec); // RW_EXT
180 const auto& ro_ref = vec;
181 cv::detail::VectorRef reader(ro_ref); // RO_EXT
183 EXPECT_EQ(0u, writer.wref<T>().size()); // Check the initial state
184 EXPECT_EQ(0u, reader.rref<T>().size());
186 writer.wref<T>().emplace_back(); // Check that write is successfull
187 EXPECT_EQ(1u, writer.wref<T>().size());
189 EXPECT_EQ(1u, vec.size()); // Check that changes are reflected to the original container
190 EXPECT_EQ(1u, reader.rref<T>().size()); // Check that changes are reflected to reader's view
192 EXPECT_EQ(T(), vec.at(0)); // Check the value (must be default-initialized)
193 EXPECT_EQ(T(), reader.rref<T>().at(0));
194 EXPECT_EQ(T(), writer.wref<T>().at(0));
197 TEST(VectorRefU, TypeCheck)
199 cv::detail::VectorRef ref;
200 ref.reset<int>(); // RW_OWN
202 EXPECT_ANY_THROW(ref.reset<char>());
203 EXPECT_ANY_THROW(ref.rref<char>());
204 EXPECT_ANY_THROW(ref.wref<char>());
207 } // namespace opencv_test