src/testutils/testmatchers.h

   1 /*
   2  * This file is part of the GROMACS molecular simulation package.
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   4  * Copyright (c) 2018, by the GROMACS development team, led by
   5  * Mark Abraham, David van der Spoel, Berk Hess, and Erik Lindahl,
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  35
  36 /*! \libinternal \file
  37  * \brief Extra GoogleMock matchers for unit tests.
  38  *
  39  * This file provides the usual kind of GoogleMock matchers that
  40  * extend the usefulness of GoogleMock EXPECT_THAT constructs to the
  41  * kinds of containers of reals commonly used. This means that test
  42  * code can write one-liners rather than loops over whole containers.
  43  *
  44  * \author Mark Abraham <mark.j.abraham@gmail.com>
  45  * \inlibraryapi
  46  * \ingroup module_testutils
  47  */
  48 #ifndef GMX_TESTUTILS_TESTMATCHERS_H
  49 #define GMX_TESTUTILS_TESTMATCHERS_H
  50
  51 #include <memory>
  52
  53 #include <gmock/gmock.h>
  54
  55 #include "gromacs/math/vectypes.h"
  56 #include "gromacs/utility/real.h"
  57
  58 #include "testutils/testasserts.h"
  59
  60 namespace gmx
  61 {
  62 namespace test
  63 {
  64
  65 /*! \brief Make matcher for floats for use with GoogleMock that compare
  66  * equal when \c tolerance is satisifed.
  67  *
  68  * Used like
  69  *
  70  *   EXPECT_THAT(testFloats, Pointwise(FloatEq(tolerance), referenceFloats));
  71  */
  72 testing::Matcher < std::tuple < float, float>>
  73 FloatEq(const FloatingPointTolerance &tolerance);
  74
  75 /*! \brief Make matcher for doubles for use with GoogleMock that compare
  76  * equal when \c tolerance is satisifed.
  77  *
  78  * Used like
  79  *
  80  *   EXPECT_THAT(testDoubles, Pointwise(DoubleEq(tolerance), referenceDoubles));
  81  */
  82 testing::Matcher < std::tuple < double, double>>
  83 DoubleEq(const FloatingPointTolerance &tolerance);
  84
  85 /*! \brief Make matcher for reals for use with GoogleMock that compare
  86  * equal when \c tolerance is satisifed.
  87  *
  88  * Used like
  89  *
  90  *   EXPECT_THAT(testReals, Pointwise(RealEq(tolerance), referenceReals));
  91  */
  92 testing::Matcher < std::tuple < real, real>>
  93 RealEq(const FloatingPointTolerance &tolerance);
  94
  95 /*! \brief Make matcher for RVecs for use with GoogleMock that compare
  96  * equal when \c tolerance is satisifed.
  97  *
  98  * Used like
  99  *
 100  *   EXPECT_THAT(testRVecs, Pointwise(RVecEq(tolerance), referenceRVecs));
 101  */
 102 testing::Matcher < std::tuple < RVec, RVec>>
 103 RVecEq(const FloatingPointTolerance &tolerance);
 104
 105 }  // namespace test
 106 }  // namespace gmx
 107
 108 #endif