Unit tests will be automatically compiled if dependencies were met in ./configure and tests weren't explicitly disabled.

After configuring, they can be run with make check.

To run the xsnd tests manually, launch src/test/test_xsn. To recompile after a test file was modified, run make and then run the test again. If you modify a non-test file, use make -C src/test to recompile only what's needed to run the xsnd tests.

To add more xsnd tests, add BOOST_AUTO_TEST_CASE functions to the existing .cpp files in the test/ directory or add new .cpp files that implement new BOOST_AUTO_TEST_SUITE sections.

To run the xsn-qt tests manually, launch src/qt/test/test_xsn-qt

To add more xsn-qt tests, add them to the src/qt/test/ directory and the src/qt/test/test_main.cpp file.

test_xsn has some built-in command-line arguments; for example, to run just the getarg_tests verbosely:

test_xsn --log_level=all --run_test=getarg_tests

... or to run just the doubledash test:

test_xsn --run_test=getarg_tests/doubledash

Run test_xsn --help for the full list.

The sources in this directory are unit test cases. Boost includes a unit testing framework, and since xsn already uses boost, it makes sense to simply use this framework rather than require developers to configure some other framework (we want as few impediments to creating unit tests as possible).

The build system is setup to compile an executable called test_xsn that runs all of the unit tests. The main source file is called test_xsn.cpp. To add a new unit test file to our test suite you need to add the file to src/Makefile.test.include. The pattern is to create one test file for each class or source file for which you want to create unit tests. The file naming convention is <source_filename>_tests.cpp and such files should wrap their tests in a test suite called <source_filename>_tests. For an example of this pattern, examine uint256_tests.cpp.

For further reading, I found the following website to be helpful in explaining how the boost unit test framework works: http://www.alittlemadness.com/2009/03/31/c-unit-testing-with-boosttest/.