src/testutils/testmatchers.h

   1 /*
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   4  * Copyright (c) 2018,2019, 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>> FloatEq(const FloatingPointTolerance& tolerance);
  73
  74 /*! \brief Make matcher for doubles for use with GoogleMock that compare
  75  * equal when \c tolerance is satisifed.
  76  *
  77  * Used like
  78  *
  79  *   EXPECT_THAT(testDoubles, Pointwise(DoubleEq(tolerance), referenceDoubles));
  80  */
  81 testing::Matcher<std::tuple<double, double>> DoubleEq(const FloatingPointTolerance& tolerance);
  82
  83 /*! \brief Make matcher for reals for use with GoogleMock that compare
  84  * equal when \c tolerance is satisifed.
  85  *
  86  * Used like
  87  *
  88  *   EXPECT_THAT(testReals, Pointwise(RealEq(tolerance), referenceReals));
  89  */
  90 testing::Matcher<std::tuple<real, real>> RealEq(const FloatingPointTolerance& tolerance);
  91
  92 /*! \brief Make matcher for RVecs for use with GoogleMock that compare
  93  * equal when \c tolerance is satisifed.
  94  *
  95  * Used like
  96  *
  97  *   EXPECT_THAT(testRVecs, Pointwise(RVecEq(tolerance), referenceRVecs));
  98  */
  99 testing::Matcher<std::tuple<RVec, RVec>> RVecEq(const FloatingPointTolerance& tolerance);
 100
 101 } // namespace test
 102 } // namespace gmx
 103
 104 #endif