(examples-for to-integer
("converts a string" (to-integer "1234") 1234) ("converts a date" (to-integer (date 2004 3 12)) 1079046000) ("converts a time" (to-integer (time 2004 3 12 18 45)) 1079113500) ("returns nonsense for non-integer" (to-integer { foo 'bar }) 0))