setup

set the useSystemDate to false
test "12/31/2012" is a date
test "31/12/2012" is not a date

set the useSystemDate to true
test "31/12/2012" is a date
test "12/31/2012" is not a date

test 1234567890 is a date
test 1234567890.12345 is a date

test empty is not a date

teardown