src/testutils/testexceptions.h

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  35 /*! \libinternal \file
  36  * \brief
  37  * Exception classes for errors in tests.
  38  *
  39  * \author Teemu Murtola <teemu.murtola@gmail.com>
  40  * \inlibraryapi
  41  * \ingroup module_testutils
  42  */
  43 #ifndef GMX_TESTUTILS_TESTEXCEPTIONS_H
  44 #define GMX_TESTUTILS_TESTEXCEPTIONS_H
  45
  46 #include <string>
  47
  48 #include "gromacs/utility/exceptions.h"
  49
  50 namespace gmx
  51 {
  52 namespace test
  53 {
  54
  55 /*! \libinternal \brief
  56  * Exception class for reporting errors in tests.
  57  *
  58  * This exception should be used for error conditions that are internal to the
  59  * test, i.e., do not indicate errors in the tested code.
  60  *
  61  * \ingroup module_testutils
  62  */
  63 class TestException : public GromacsException
  64 {
  65     public:
  66         /*! \brief
  67          * Creates a test exception object with the provided detailed reason.
  68          *
  69          * \param[in] reason Detailed reason for the exception.
  70          */
  71         explicit TestException(const std::string &reason)
  72             : GromacsException(reason) {}
  73         /*! \brief
  74          * Creates a test exception based on another GromacsException object.
  75          *
  76          * \param[in] base  Exception to wrap.
  77          *
  78          * \see GMX_THROW_WRAPPER_TESTEXCEPTION
  79          */
  80         explicit TestException(const GromacsException &base)
  81             : GromacsException(base) {}
  82
  83         virtual int errorCode() const { return -1; }
  84 };
  85
  86 /*! \brief
  87  * Macro for throwing a TestException that wraps another exception.
  88  *
  89  * \param[in] e    Exception object to wrap.
  90  *
  91  * This macro is intended for wrapping exceptions thrown by Gromacs methods
  92  * that are called from a test for the test's internal purposes.  It wraps the
  93  * exception in a TestException to make it possible to tell from the type of
  94  * the exception whether the exception was thrown by the code under test, or by
  95  * the test code itself.
  96  *
  97  * \p e should evaluate to an instance of an object derived from
  98  * GromacsException.
  99  *
 100  * Typical usage in test code:
 101  * \code
 102    try
 103    {
 104        // some code that may throw a GromacsException
 105    }
 106    catch (const GromacsException &ex)
 107    {
 108        GMX_THROW_WRAPPER_TESTEXCEPTION(ex);
 109    }
 110  * \endcode
 111  */
 112 #define GMX_THROW_WRAPPER_TESTEXCEPTION(e) \
 113     throw ::gmx::test::TestException(e)
 114
 115 } // namespace test
 116 } // namespace gmx
 117
 118 #endif