test PSGI programs using WWW::Mechanize

 Test::WWW::Mechanize is a subclass of WWW::Mechanize
 that incorporates features for web application testing.
 The Test::WWW::Mechanize::PSGI module meshes the two
 to allow easy testing of PSGI applications.
 .
 PSGI is a specification to decouple web server environments
 from web application framework code.