'crontab * */3 * * *'=>test_zci(qr/^Cron will schedule the job at this frequency:\s*\n\s*\d{1,2}:\d{1,2}:\d{1,2} on \d{1,2} [a-zA-Z]{3}, \d{4}\s*\n\s*\d{1,2}:\d{1,2}:\d{1,2} on \d{1,2} [a-zA-Z]{3}, \d{4}\s*\n\s*\d{1,2}:\d{1,2}:\d{1,2} on \d{1,2} [a-zA-Z]{3}, \d{4}$/),
'crontab 42 12 3 Feb Sat'=>test_zci(qr/^Cron will schedule the job at this frequency:\s*\n\s*\d{1,2}:\d{1,2}:\d{1,2} on \d{1,2} [a-zA-Z]{3}, \d{4}\s*\n\s*\d{1,2}:\d{1,2}:\d{1,2} on \d{1,2} [a-zA-Z]{3}, \d{4}\s*\n\s*\d{1,2}:\d{1,2}:\d{1,2} on \d{1,2} [a-zA-Z]{3}, \d{4}$/),