Editing Add BIST tests for octave functions written in C++ (section)

==== Example 4 : Function tested elsewhere ====

The BIST tests are normally located immediately following the DEFUN block.  However this is not always the case.  For functions that occur in pairs like set()/get() or load()/save() the tests may be located near just one of the functions.  Or the tests may be located in a single block somewhere else.  This could be the end of the file, or it could be in a separate test file in the test/ directory.  In this case, the function needs only to be marked with an explanation about where the tests reside.  For example, in bessel.cc there is a large test block at the end of the file and the code includes a note that begins with '%!#' 

<pre>
/*
%!# Function besselj is tested along with other bessels at the end of this file
*/
</pre>

Alternatively, it may make sense to move the tests to reside next to the function.  For example, cputime() does not have tests in data.cc, but it does in test/system.tst.