How can I test an event triggered by a date in the future in specs2

I would like to test the behavior of a function that has different behaviors depending on which it is being executed, is there a way to define/simulate the date in specs2?

Example how would I test the following?

def dateDependingFunction:Boolean = currentDate > aSetDate

I would like to be able to write something like

"My Date depending functions" should{
// here somehow set a date fulfilling `currentDate > aSetDate`
 "return true" in {
    dateDependingFunction:Boolean must beBeEqualTo(true)
 }

 // here somehow set a date fulfilling `currentDate < aSetDate`
 "return false" in {
    dateDependingFunction:Boolean must beBeEqualTo(false)
 }
}