The `tests` directory contains code for unit tests. The code is compiled and
executed when one invokes compilation using the 'make check' command. Tests are
run by means of the `Boost Unitests Library
<http://www.boost.org/doc/libs/1_37_0/libs/test/doc/html/index.html>`_. Before coding the test routines, the required skeleton needs to be put in place.
<http://www.boost.org/doc/libs/1_53_0/libs/test/doc/html/index.html>`_. Before coding the test routines, the required skeleton needs to be put in place.
The main code is put into 'tests.cc', which will become the test executable. There are only 3 lines required