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create_test_sourcelist
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----------------------
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Create a test driver program that links together many small tests into a
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single executable. This is useful when building static executables with
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large libraries to shrink the total required size.
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.. signature::
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create_test_sourcelist(<sourceListName> <driverName> <test>... <options>...)
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:target: original
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Generate a test driver source file from a list of individual test sources
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and provide a combined list of sources that can be built as an executable.
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The options are:
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``<sourceListName>``
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The name of a variable in which to store the list of source files needed
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to build the test driver. The list will contain the ``<test>...`` sources
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and the generated ``<driverName>`` source.
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.. versionchanged:: 3.29
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The test driver source is listed by absolute path in the build tree.
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Previously it was listed only as ``<driverName>``.
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``<driverName>``
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Name of the test driver source file to be generated into the build tree.
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The source file will contain a ``main()`` program entry point that
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dispatches to whatever test is named on the command line.
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``<test>...``
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Test source files to be added to the driver binary. Each test source
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file must have a function in it that is the same name as the file with the
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extension removed. For example, a ``foo.cxx`` test source might contain:
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.. code-block:: c++
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int foo(int argc, char** argv)
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``EXTRA_INCLUDE <header>``
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Specify a header file to ``#include`` in the generated test driver source.
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``FUNCTION <function>``
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Specify a function to be called with pointers to ``argc`` and ``argv``.
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The function may be provided in the ``EXTRA_INCLUDE`` header:
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.. code-block:: c++
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void function(int* pargc, char*** pargv)
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This can be used to add extra command line processing to each test.
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Additionally, some CMake variables affect test driver generation:
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.. variable:: CMAKE_TESTDRIVER_BEFORE_TESTMAIN
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Code to be placed directly before calling each test's function.
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.. variable:: CMAKE_TESTDRIVER_AFTER_TESTMAIN
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Code to be placed directly after the call to each test's function.
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