For testing the vcardparser there are some test files and a small testsuite automatically checking for regressions. The tests directory tqcontains some vCard files and correpsonding reference output files (with an additional ".ref" suffix). For running the geression test do "make check". This will compile some test programs, parse the test files, write them out as vCard again and compare the output to the reference file. The check fails, if there are unexpected differences and shows which lines differed. For creating a new test put a vCard file to be parsed into the tests directory. Create a reference file by running "testread" on the test file. It will put out the parsed data as vCard again on stdout. Carefully check the output, manually correct any errors and save the result as reference file in the tests directory. Now add the filename to the TESTFILES variable in Makefile.am and run "make check". If the check fails adapt the reference file or fix the bugs in the parser, whatever is appropriate.