Testing mod_perl 2.0 (O'Reilly)
Writing a series of tests that executes against a live Apache server has become much simpler since the advent of Apache-Test. Although Apache-Test, as part of the Apache HTTP Test Project, is generic enough to be used with virtually any version of Apache (with or without mod_perl enabled), it comes bundled with mod_perl 2.0, making it the tool of choice for writing tests for your mod_perl 2.0 modules."