src/gromacs/mdspan/tests/extensions.cpp

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  35 /*! \internal \file
  36  * \brief
  37  * Tests gromacs extensions to mdspan proposal
  38  *
  39  * \author Christian Blau <cblau@gwdg.de>
  40  * \ingroup module_mdspan
  41  */
  42 #include "gmxpre.h"
  43
  44 #include "gromacs/mdspan/extensions.h"
  45
  46 #include <string>
  47 #include <vector>
  48
  49 #include <gmock/gmock.h>
  50 #include <gtest/gtest.h>
  51
  52 #include "gromacs/mdspan/mdspan.h"
  53
  54 #include "testutils/testasserts.h"
  55
  56 namespace gmx
  57 {
  58
  59 TEST(MdSpanExtension, SlicingAllStatic)
  60 {
  61     std::array<int, 2*3>              data = {1, 2, 3, 4, 5, 6};
  62     basic_mdspan<int, extents<3, 2> > span {
  63         data.data()
  64     };
  65     EXPECT_EQ(span[0][0], 1);
  66     EXPECT_EQ(span[0][1], 2);
  67
  68     EXPECT_EQ(span[1][0], 3);
  69     EXPECT_EQ(span[1][1], 4);
  70
  71     EXPECT_EQ(span[2][0], 5);
  72     EXPECT_EQ(span[2][1], 6);
  73 }
  74
  75 TEST(MdSpanExtension, SlicingDynamic)
  76 {
  77     std::array<int, 2 * 3> data = {1, 2, 3, 4, 5, 6};
  78     basic_mdspan<int, extents<dynamic_extent, dynamic_extent> > span {
  79         data.data(), 2, 2
  80     };
  81
  82     EXPECT_EQ(span[0][0], 1);
  83     EXPECT_EQ(span[0][1], 2);
  84
  85     EXPECT_EQ(span[1][0], 3);
  86     EXPECT_EQ(span[1][1], 4);
  87
  88     EXPECT_EQ(span[2][0], 5);
  89     EXPECT_EQ(span[2][1], 6);
  90 }
  91
  92 TEST(MdSpanExtension, SlicingAllStatic3D)
  93 {
  94     std::array<int, 2 * 2* 2> data = {1, 2, 3, 4, 5, 6, 7, 8 };
  95     basic_mdspan<int, extents<2, 2, 2> >
  96     span {
  97         data.data()
  98     };
  99     EXPECT_EQ(span[0][0][0], 1);
 100     EXPECT_EQ(span[0][0][1], 2);
 101
 102     EXPECT_EQ(span[0][1][0], 3);
 103     EXPECT_EQ(span[0][1][1], 4);
 104
 105     EXPECT_EQ(span[1][0][0], 5);
 106     EXPECT_EQ(span[1][0][1], 6);
 107
 108     EXPECT_EQ(span[1][1][0], 7);
 109     EXPECT_EQ(span[1][1][1], 8);
 110
 111 }
 112
 113 TEST(MdSpanExtension, SlicingEqualsView3D)
 114 {
 115     std::array<int, 2 * 2 * 2>           data = {1, 2, 3, 4, 5, 6, 7, 8};
 116     basic_mdspan<int, extents<2, 2, 2> > span {
 117         data.data()
 118     };
 119     EXPECT_EQ(span[0][0][0], span(0, 0, 0));
 120     EXPECT_EQ(span[0][0][1], span(0, 0, 1));
 121     EXPECT_EQ(span[0][1][0], span(0, 1, 0));
 122     EXPECT_EQ(span[0][1][1], span(0, 1, 1));
 123     EXPECT_EQ(span[1][0][0], span(1, 0, 0));
 124     EXPECT_EQ(span[1][0][1], span(1, 0, 1));
 125     EXPECT_EQ(span[1][1][0], span(1, 1, 0));
 126     EXPECT_EQ(span[1][1][1], span(1, 1, 1));
 127 }
 128
 129 TEST(MdSpanExtension, additionWorks)
 130 {
 131     std::array<int, 2 * 2 * 2>           arr1 = {{-4, -3, -2, -1, 0, 1, 2, 3}};
 132     std::array<int, 2 * 2 * 2>           arr2 = {{1, 1, 1, 1, 1, 1, 1, 1}};
 133     basic_mdspan<int, extents<2, 2, 2> > span1 {
 134         arr1.data()
 135     };
 136     basic_mdspan<int, extents<2, 2, 2> > span2 {
 137         arr2.data()
 138     };
 139
 140     auto              result = addElementwise(span1, span2);
 141     EXPECT_EQ(result[0][0][1], -2);
 142     EXPECT_EQ(result[0][1][0], -1);
 143     EXPECT_EQ(result[1][0][0],  1);
 144 }
 145
 146 TEST(MdSpanExtension, subtractionWorks)
 147 {
 148     std::array<int, 2 * 2 * 2>           arr1 = {{-4, -3, -2, -1, 0, 1, 2, 3}};
 149     std::array<int, 2 * 2 * 2>           arr2 = {{1, 1, 1, 1, 1, 1, 1, 1}};
 150     basic_mdspan<int, extents<2, 2, 2> > span1 {
 151         arr1.data()
 152     };
 153     basic_mdspan<int, extents<2, 2, 2> > span2 {
 154         arr2.data()
 155     };
 156
 157     auto              result = subtractElementwise(span1, span2);
 158     EXPECT_EQ(result[0][0][1], -4);
 159     EXPECT_EQ(result[0][1][0], -3);
 160     EXPECT_EQ(result[1][0][0], -1);
 161 }
 162
 163 TEST(MdSpanExtension, multiplicationWorks)
 164 {
 165     std::array<int, 2 * 2 * 2>           arr1 = {{-4, -3, -2, -1, 0, 1, 2, 3}};
 166     std::array<int, 2 * 2 * 2>           arr2 = {{2, 2, 2, 2, 2, 2, 2, }};
 167     basic_mdspan<int, extents<2, 2, 2> > span1 {
 168         arr1.data()
 169     };
 170     basic_mdspan<int, extents<2, 2, 2> > span2 {
 171         arr2.data()
 172     };
 173
 174     auto              result = multiplyElementwise(span1, span2);
 175     EXPECT_EQ(result[0][0][1], -6);
 176     EXPECT_EQ(result[0][1][0], -4);
 177     EXPECT_EQ(result[1][0][0],  0);
 178 }
 179
 180 TEST(MdSpanExtension, divisionWorks)
 181 {
 182     std::array<float, 2 * 2 * 2>           arr1 = {{-4, -3, -2, -1, 0, 1, 2, 3}};
 183     std::array<float, 2 * 2 * 2>           arr2 = {{2, 2, 2, 2, 2, 2, 2, 2, }};
 184     basic_mdspan<float, extents<2, 2, 2> > span1 {
 185         arr1.data()
 186     };
 187     basic_mdspan<float, extents<2, 2, 2> > span2 {
 188         arr2.data()
 189     };
 190
 191     auto              result = divideElementwise(span1, span2);
 192     EXPECT_EQ(result[0][0][1], -1.5);
 193     EXPECT_EQ(result[0][1][0], -1);
 194     EXPECT_EQ(result[1][0][0],    0);
 195 }
 196 } // namespace gmx