The tests in this directory require a working database, as opposedto the tests in t/, which simply test the code without a workinginstallation.Some of the tests may modify your current working installation, evenif only temporarily. To run the tests that modify your database,set the environment variable BZ_WRITE_TESTS to 1.Some tests also take additional, optional arguments. You can pass argumentsto tests like: prove xt/search.t :: --long --operators=equals,notequalsNote the "::"--that is necessary to note that the arguments are going tothe test, not to "prove".See the perldoc of the individual tests to see what options they support,or do "perl xt/search.t --help".