Hello! I released now Test::Warn 0.05 in CPAN and I decided me to give this interface:
use Test::Warn; warning_is {foo(-dri => "/")} "Unknown Parameter 'dri'", "dri != dir gives warning"; warnings_are {bar(1,1)} ["Width very small", "Height very small"]; warning_is {add(2,2)} undef, "No warning to calc 2+2"; # or warnings_are {add(2,2)} [], "No warning to calc 2+2"; # what reads better :-) warning_like {foo(-dri => "/"} qr/unknown param/i, "an unknown parameter test"; warnings_like {bar(1,1)} [qr/width.*small/i, qr/height.*small/i]; warning_is {foo()} {carped => 'didn't found the right parameters'}; warnings_like {foo()} [qr/undefined/,qr/undefined/,{carped => qr/no result/i}]; warning_like {foo(undef)} 'uninitialized'; warning_like {bar(file => '/etc/passwd')} 'io'; warning_like {eval q/"$x"; $x;/} [qw/void uninitialized/], "some warnings at compile time"; Greetings, Janek