my $conf = q(                                                                                           
            log4perl.logger.testLog = ).$logging_level.q(, logApp
            log4perl.appender.logApp= Log::Log4perl::Appender::File         
            log4perl.appender.logApp.mode= append
            log4perl.appender.logApp.syswrite= 1
            log4perl.appender.logApp.filename= test.log                      
            log4perl.appender.logApp.layout= Log::Log4perl::Layout::PatternLayout 
            log4perl.appender.logApp.layout.ConversionPattern   = %m %n
       )
Log::Log4perl->init( \$conf );                                                                          
use testPackage;                                                                                        
&testPackage::foo();