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// This file is part of OpenCV project.
// It is subject to the license terms in the LICENSE file found in the top-level directory
// of this distribution and at http://opencv.org/license.html.
//
// Copyright (C) 2018 Intel Corporation
#include "../test_precomp.hpp"
namespace opencv_test
{
typedef ::testing::Types<int, cv::Point, cv::Rect> VectorRef_Test_Types;
template<typename T> struct VectorRefT: public ::testing::Test { using Type = T; };
TYPED_TEST_CASE(VectorRefT, VectorRef_Test_Types);
TYPED_TEST(VectorRefT, Reset_Valid)
{
using T = typename TestFixture::Type;
cv::detail::VectorRefT<T> ref; // vector ref created empty
EXPECT_NO_THROW(ref.reset()); // 1st reset is OK (initializes)
EXPECT_NO_THROW(ref.reset()); // 2nd reset is also OK (resets)
}
TYPED_TEST(VectorRefT, Reset_Invalid)
{
using T = typename TestFixture::Type;
std::vector<T> vec(42); // create a std::vector of 42 elements
cv::detail::VectorRefT<T> ref(vec); // RO_EXT (since reference is const)
EXPECT_ANY_THROW(ref.reset()); // data-bound vector ref can't be reset
}
TYPED_TEST(VectorRefT, ReadRef_External)
{
using T = typename TestFixture::Type;
const std::vector<T> vec(42); // create a std::vector of 42 elements
cv::detail::VectorRefT<T> ref(vec); // RO_EXT (since reference is const)
auto &vref = ref.rref();
EXPECT_EQ(vec.data(), vref.data());
EXPECT_EQ(vec.size(), vref.size());
}
TYPED_TEST(VectorRefT, ReadRef_Internal)
{
using T = typename TestFixture::Type;
cv::detail::VectorRefT<T> ref;
ref.reset(); // RW_OWN (reset on empty ref)
auto &vref = ref.rref(); // read access is valid for RW_OWN
EXPECT_EQ(0u, vref.size()); // by default vector is empty
}
TYPED_TEST(VectorRefT, WriteRef_External)
{
using T = typename TestFixture::Type;
std::vector<T> vec(42); // create a std::vector of 42 elements
cv::detail::VectorRefT<T> ref(vec); // RW_EXT (since reference is not const)
auto &vref = ref.wref(); // write access is valid with RW_EXT
EXPECT_EQ(vec.data(), vref.data());
EXPECT_EQ(vec.size(), vref.size());
}
TYPED_TEST(VectorRefT, WriteRef_Internal)
{
using T = typename TestFixture::Type;
cv::detail::VectorRefT<T> ref;
ref.reset(); // RW_OWN (reset on empty ref)
auto &vref = ref.wref(); // write access is valid for RW_OWN
EXPECT_EQ(0u, vref.size()); // empty vector by default
}
TYPED_TEST(VectorRefT, WriteToRO)
{
using T = typename TestFixture::Type;
const std::vector<T> vec(42); // create a std::vector of 42 elements
cv::detail::VectorRefT<T> ref(vec); // RO_EXT (since reference is const)
EXPECT_ANY_THROW(ref.wref());
}
TYPED_TEST(VectorRefT, ReadAfterWrite)
{
using T = typename TestFixture::Type;
std::vector<T> vec; // Initial data holder (empty vector)
cv::detail::VectorRefT<T> writer(vec); // RW_EXT
const auto& ro_ref = vec;
cv::detail::VectorRefT<T> reader(ro_ref); // RO_EXT
EXPECT_EQ(0u, writer.wref().size()); // Check the initial state
EXPECT_EQ(0u, reader.rref().size());
writer.wref().emplace_back(); // Check that write is successful
EXPECT_EQ(1u, writer.wref().size());
EXPECT_EQ(1u, vec.size()); // Check that changes are reflected to the original container
EXPECT_EQ(1u, reader.rref().size()); // Check that changes are reflected to reader's view
EXPECT_EQ(T(), vec.at(0)); // Check the value (must be default-initialized)
EXPECT_EQ(T(), reader.rref().at(0));
EXPECT_EQ(T(), writer.wref().at(0));
}
template<typename T> struct VectorRefU: public ::testing::Test { using Type = T; };
TYPED_TEST_CASE(VectorRefU, VectorRef_Test_Types);
template<class T> struct custom_struct { T a; T b; };
TYPED_TEST(VectorRefU, Reset_Valid)
{
using T = typename TestFixture::Type;
cv::detail::VectorRef ref; // vector ref created empty
EXPECT_NO_THROW(ref.reset<T>()); // 1st reset is OK (initializes)
EXPECT_NO_THROW(ref.reset<T>()); // 2nd reset is also OK (resets)
EXPECT_ANY_THROW(ref.reset<custom_struct<T> >()); // type change is not allowed
}
TYPED_TEST(VectorRefU, Reset_Invalid)
{
using T = typename TestFixture::Type;
std::vector<T> vec(42); // create a std::vector of 42 elements
cv::detail::VectorRef ref(vec); // RO_EXT (since reference is const)
EXPECT_ANY_THROW(ref.reset<T>()); // data-bound vector ref can't be reset
}
TYPED_TEST(VectorRefU, ReadRef_External)
{
using T = typename TestFixture::Type;
const std::vector<T> vec(42); // create a std::vector of 42 elements
cv::detail::VectorRef ref(vec); // RO_EXT (since reference is const)
auto &vref = ref.rref<T>();
EXPECT_EQ(vec.data(), vref.data());
EXPECT_EQ(vec.size(), vref.size());
}
TYPED_TEST(VectorRefU, ReadRef_Internal)
{
using T = typename TestFixture::Type;
cv::detail::VectorRef ref;
ref.reset<T>(); // RW_OWN (reset on empty ref)
auto &vref = ref.rref<T>(); // read access is valid for RW_OWN
EXPECT_EQ(0u, vref.size()); // by default vector is empty
}
TYPED_TEST(VectorRefU, WriteRef_External)
{
using T = typename TestFixture::Type;
std::vector<T> vec(42); // create a std::vector of 42 elements
cv::detail::VectorRef ref(vec); // RW_EXT (since reference is not const)
auto &vref = ref.wref<T>(); // write access is valid with RW_EXT
EXPECT_EQ(vec.data(), vref.data());
EXPECT_EQ(vec.size(), vref.size());
}
TYPED_TEST(VectorRefU, WriteRef_Internal)
{
using T = typename TestFixture::Type;
cv::detail::VectorRef ref;
ref.reset<T>(); // RW_OWN (reset on empty ref)
auto &vref = ref.wref<T>(); // write access is valid for RW_OWN
EXPECT_EQ(0u, vref.size()); // empty vector by default
}
TYPED_TEST(VectorRefU, WriteToRO)
{
using T = typename TestFixture::Type;
const std::vector<T> vec(42); // create a std::vector of 42 elements
cv::detail::VectorRef ref(vec); // RO_EXT (since reference is const)
EXPECT_ANY_THROW(ref.wref<T>());
}
TYPED_TEST(VectorRefU, ReadAfterWrite)
{
using T = typename TestFixture::Type;
std::vector<T> vec; // Initial data holder (empty vector)
cv::detail::VectorRef writer(vec); // RW_EXT
const auto& ro_ref = vec;
cv::detail::VectorRef reader(ro_ref); // RO_EXT
EXPECT_EQ(0u, writer.wref<T>().size()); // Check the initial state
EXPECT_EQ(0u, reader.rref<T>().size());
writer.wref<T>().emplace_back(); // Check that write is successful
EXPECT_EQ(1u, writer.wref<T>().size());
EXPECT_EQ(1u, vec.size()); // Check that changes are reflected to the original container
EXPECT_EQ(1u, reader.rref<T>().size()); // Check that changes are reflected to reader's view
EXPECT_EQ(T(), vec.at(0)); // Check the value (must be default-initialized)
EXPECT_EQ(T(), reader.rref<T>().at(0));
EXPECT_EQ(T(), writer.wref<T>().at(0));
}
TEST(VectorRefU, TypeCheck)
{
cv::detail::VectorRef ref;
ref.reset<int>(); // RW_OWN
EXPECT_ANY_THROW(ref.reset<char>());
EXPECT_ANY_THROW(ref.rref<char>());
EXPECT_ANY_THROW(ref.wref<char>());
}
} // namespace opencv_test
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