Best-practise currently for testing internal parts of libs? *_TEST_EXPORT macro?
Friedrich W. H. Kossebau
kossebau at kde.org
Mon Aug 31 13:41:00 BST 2015
Hi,
what approach is best-practise currently for testing internal parts of libs?
E.g. by symbols (classes) are not exported by default?
In Calligra we have code that uses XYZ_TEST_EXPORT macros for those symbols
which should be only exported in test-enabled builds, e.g. by defining
COMPILING_TESTS to true and having code in the export header like
#ifdef COMPILING_TESTS
#if defined _WIN32 || defined _WIN64
# if defined(calligrasheetsodf_EXPORTS)
# define CALLIGRA_SHEETS_ODF_TEST_EXPORT KDE_EXPORT
# else
# define CALLIGRA_SHEETS_ODF_TEST_EXPORT KDE_IMPORT
# endif
# else /* not windows */
# define CALLIGRA_SHEETS_ODF_TEST_EXPORT KDE_EXPORT
# endif
#else /* not compiling tests */
# define CALLIGRA_SHEETS_ODF_TEST_EXPORT
#endif
But when switching to generated export headers, using cmake's
generate_export_header macro, this seems no longer an option.
Grepping for TEST_EXPORT on lxr.kde.org points that this seems an older
approach which only might have survived in the island of Calligra :) when the
rest of KDE world evolved to something else?
So what are others doing?
The only place lxr.kde.org pointed out to use the *TEST_EXPORT approach was
grantlee, which simply creates a separate file with the define that then is
appended to the file generated with generate_export_header:
http://lxr.kde.org/source/grantlee/templates/lib/CMakeLists.txt
Seems a working hack which we could copy. But not sure if this is the best way
and if this should not be done more generically?
Cheers
Friedrich
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