src/gromacs/math/tests/paddedvector.cpp

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  35 /*! \internal \file
  36  * \brief
  37  * Tests implementation of gmx::PaddedVector
  38  *
  39  * In particular we need to check that the padding works, and that
  40  * unpadded_end() is maintained correctly.
  41  *
  42  * \author Mark Abraham <mark.j.abraham@gmail.com>
  43  * \ingroup module_math
  44  */
  45 #include "gmxpre.h"
  46
  47 #include "gromacs/math/paddedvector.h"
  48
  49 #include <memory>
  50 #include <vector>
  51
  52 #include <gtest/gtest.h>
  53
  54 #include "gromacs/math/vec.h"
  55 #include "gromacs/math/vectypes.h"
  56 #include "gromacs/utility/alignedallocator.h"
  57 #include "gromacs/utility/basedefinitions.h"
  58
  59 #include "gromacs/math/tests/testarrayrefs.h"
  60
  61 namespace gmx
  62 {
  63 namespace test
  64 {
  65
  66 //! Typed test fixture
  67 template <typename T>
  68 class PaddedVectorTest : public ::testing::Test
  69 {
  70     public:
  71 };
  72
  73 //! The types used in testing
  74 using Implementations = ::testing::Types <
  75         std::allocator<int32_t>,
  76     std::allocator<float>,
  77     std::allocator<double>,
  78     std::allocator < BasicVector < float>>,
  79     std::allocator < BasicVector < double>>,
  80     AlignedAllocator<int32_t>,
  81     AlignedAllocator<float>,
  82     AlignedAllocator<double>,
  83     AlignedAllocator < BasicVector < float>>,
  84     AlignedAllocator < BasicVector<double>>
  85                                    >;
  86 TYPED_TEST_CASE(PaddedVectorTest, Implementations);
  87
  88 TYPED_TEST(PaddedVectorTest, ConstructsResizesAndReserves)
  89 {
  90     using VectorType = PaddedVector<typename TypeParam::value_type, TypeParam>;
  91
  92     VectorType v;
  93     fillInput(&v, 1);
  94
  95     EXPECT_EQ(v.size(), v.size());
  96     EXPECT_EQ(v.paddedSize(), v.arrayRefWithPadding().size());
  97     EXPECT_LE(v.size(), v.arrayRefWithPadding().size());
  98
  99     VectorType vReserved;
 100     vReserved.reserveWithPadding(5);
 101     fillInput(&vReserved, 1);
 102
 103     EXPECT_EQ(vReserved.size(), vReserved.size());
 104     EXPECT_EQ(vReserved.paddedSize(), vReserved.arrayRefWithPadding().size());
 105     EXPECT_LE(vReserved.size(), vReserved.arrayRefWithPadding().size());
 106
 107     EXPECT_LE(v.paddedSize(), vReserved.paddedSize());
 108 }
 109
 110 TYPED_TEST(PaddedVectorTest, CanCopyAssign)
 111 {
 112     using VectorType = PaddedVector<typename TypeParam::value_type, TypeParam>;
 113
 114     VectorType v, w;
 115     fillInput(&v, 1);
 116     fillInput(&w, 2);
 117
 118     w = v;
 119     compareViews(v.arrayRefWithPadding().unpaddedArrayRef(),
 120                  w.arrayRefWithPadding().unpaddedArrayRef());
 121     compareViews(makeArrayRef(v), makeArrayRef(v));
 122 }
 123
 124 TYPED_TEST(PaddedVectorTest, CanMoveAssign)
 125 {
 126     using VectorType = PaddedVector<typename TypeParam::value_type, TypeParam>;
 127
 128     VectorType v, w, x;
 129     fillInput(&v, 1);
 130     fillInput(&w, 2);
 131     fillInput(&x, 1);
 132
 133     SCOPED_TRACE("Comparing padded views before move");
 134     compareViews(v.arrayRefWithPadding().unpaddedArrayRef(),
 135                  x.arrayRefWithPadding().unpaddedArrayRef());
 136     SCOPED_TRACE("Comparing unpadded views before move");
 137     compareViews(makeArrayRef(v), makeArrayRef(x));
 138
 139     w = std::move(x);
 140
 141     SCOPED_TRACE("Comparing padded views");
 142     compareViews(v.arrayRefWithPadding().unpaddedArrayRef(),
 143                  w.arrayRefWithPadding().unpaddedArrayRef());
 144     SCOPED_TRACE("Comparing unpadded views");
 145     compareViews(makeArrayRef(v), makeArrayRef(w));
 146 }
 147
 148 TYPED_TEST(PaddedVectorTest, CanSwap)
 149 {
 150     using VectorType = PaddedVector<typename TypeParam::value_type, TypeParam>;
 151
 152     VectorType v, w, x;
 153     fillInput(&v, 1);
 154     fillInput(&w, 2);
 155     fillInput(&x, 1);
 156
 157     std::swap(w, x);
 158     compareViews(v.arrayRefWithPadding().unpaddedArrayRef(),
 159                  w.arrayRefWithPadding().unpaddedArrayRef());
 160     compareViews(makeArrayRef(v), makeArrayRef(w));
 161 }
 162
 163 } // namespace test
 164 } // namespace gmx