src/gromacs/coordinateio/tests/settimestep.cpp

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  35 /*!\internal
  36  * \file
  37  * \brief
  38  * Tests for gmx::SetTimeStep
  39  *
  40  * \author Paul Bauer <paul.bauer.q@gmail.com>
  41  * \ingroup module_coordinateio
  42  */
  43
  44
  45 #include "gmxpre.h"
  46
  47 #include <memory>
  48
  49 #include "gromacs/coordinateio/outputadapters/settimestep.h"
  50 #include "gromacs/trajectory/trajectoryframe.h"
  51
  52 #include "gromacs/coordinateio/tests/coordinate_test.h"
  53
  54 namespace gmx
  55 {
  56
  57 namespace test
  58 {
  59
  60 /*!\brief
  61  * Test fixture to prepare a setatoms object to pass data through.
  62  */
  63 class SetTimeStepTest : public gmx::test::CommandLineTestBase
  64 {
  65     public:
  66         SetTimeStepTest()
  67         {
  68             clear_trxframe(frame(), true);
  69         }
  70         /*! \brief
  71          * Get access to the method for changing frame time information.
  72          *
  73          * \param[in] timeStep User supplied time step to test.
  74          */
  75         SetTimeStep *setTimeStep(real timeStep)
  76         {
  77             if (!setTimeStep_)
  78             {
  79                 setTimeStep_ = std::make_unique<SetTimeStep>(timeStep);
  80             }
  81             return setTimeStep_.get();
  82         }
  83         //! Get access to trajectoryframe to mess with.
  84         t_trxframe *frame() { return &frame_; }
  85
  86     private:
  87         //! Object to use for tests
  88         SetTimeStepPointer     setTimeStep_;
  89         //! Storage of trajectoryframe.
  90         t_trxframe             frame_;
  91 };
  92
  93 TEST_F(SetTimeStepTest, SetTimeStepWorks)
  94 {
  95     frame()->time = 23;
  96     // Set start time to nonsense to make sure it is ignored.
  97     SetTimeStep *method = setTimeStep(7);
  98     EXPECT_NO_THROW(method->processFrame(0, frame()));
  99     EXPECT_EQ(frame()->time, 23);
 100     // No matter what the next time in the frame is, ignore it.
 101     frame()->time = 42;
 102     EXPECT_NO_THROW(method->processFrame(1, frame()));
 103     EXPECT_EQ(frame()->time, 30);
 104     // And so on for more frames.
 105     frame()->time = 0;
 106     EXPECT_NO_THROW(method->processFrame(2, frame()));
 107     EXPECT_EQ(frame()->time, 37);
 108 }
 109
 110 } // namespace test
 111
 112 } // namespace gmx