I have a zabbix trapper item, let's say "test1", character-type. Some cron job usually put "OK" and "ERROR" values in this item.
Sometimes these cron jobs fail or don't run at all.

I have an trigger like this

test1.nodata(3600) | test.str(OK,3600)

This trigger is ok when data comes is but the second term (str) fails if there is no data in the last hour.
Even then this trigger should fire up an event because
the first term evaluates to 1: "1 | Unknown" should still evaluate to 1, shouldn't it?