src/gromacs/math/tests/testarrayrefs.h

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  35 /*! \libinternal \file
  36  * \brief Declares functions for comparing views of vector-like data.
  37  *
  38  * \author Mark Abraham <mark.j.abraham@gmail.com>
  39  * \ingroup module_math
  40  * \inlibraryapi
  41  */
  42 #ifndef GMX_MATH_TESTARRAYREFS_H
  43 #define GMX_MATH_TESTARRAYREFS_H
  44
  45 #include <gtest/gtest.h>
  46
  47 #include "gromacs/math/vectypes.h"
  48
  49 namespace gmx
  50 {
  51 namespace test
  52 {
  53
  54 //! Initialization overload for non-BasicVector
  55 template <typename T>
  56 void fillInputContents(ArrayRef<T> inputRef,
  57                        int         scaleFactor)
  58 {
  59     inputRef[0] = 1;
  60     inputRef[1] = 2;
  61     inputRef[2] = 3;
  62     for (auto &element : inputRef)
  63     {
  64         element *= scaleFactor;
  65     }
  66 }
  67
  68 //! Initialization overload for BasicVector
  69 template <typename T>
  70 void fillInputContents(ArrayRef < BasicVector < T>> inputRef,
  71                        int                          scaleFactor)
  72 {
  73     inputRef[0] = {1, 2, 3};
  74     inputRef[1] = {4, 5, 6};
  75     inputRef[2] = {7, 8, 9};
  76     for (auto &element : inputRef)
  77     {
  78         element *= scaleFactor;
  79     }
  80 }
  81
  82 //! Dispatcher function for filling.
  83 template <typename PaddedVectorOfT>
  84 void fillInput(PaddedVectorOfT *input,
  85                int              scaleFactor)
  86 {
  87     // Use a size for the vector in tests that is prime enough to
  88     // expose problems where they exist.
  89     int sizeOfVector = 3;
  90     input->resizeWithPadding(sizeOfVector);
  91     fillInputContents(makeArrayRef(*input), scaleFactor);
  92     EXPECT_LE(sizeOfVector, input->paddedSize());
  93 }
  94
  95 //! Comparison overload for non-BasicVector
  96 template <typename T>
  97 void compareViews(ArrayRef<T> input,
  98                   ArrayRef<T> output)
  99 {
 100     ASSERT_EQ(input.size(), output.size());
 101     for (index i = 0; i != input.ssize(); ++i)
 102     {
 103         EXPECT_EQ(input[i], output[i]) << "for index " << i;
 104     }
 105 }
 106
 107 //! Comparison overload for BasicVector<T>
 108 template <typename T>
 109 void compareViews(ArrayRef < BasicVector < T>> input,
 110                   ArrayRef < BasicVector < T>> output)
 111 {
 112     ASSERT_EQ(input.size(), output.size());
 113     for (index i = 0; i != input.ssize(); ++i)
 114     {
 115         EXPECT_EQ(input[i][XX], output[i][XX]) << "for index " << i;
 116         EXPECT_EQ(input[i][YY], output[i][YY]) << "for index " << i;
 117         EXPECT_EQ(input[i][ZZ], output[i][ZZ]) << "for index " << i;
 118     }
 119 }
 120
 121 } // namespace test
 122 } // namespace gmx
 123
 124 #endif