Test to see if for-comprehension yields result with a failing if guard

ForComprehensionIfGuard.scala

import scala.concurrent.Future

import scala.concurrent.ExecutionContext.Implicits.global

(for {
  a <- Future.successful("a")
  b <- Future.successful("b") if 1 > 0
  c <- Future.successful("c") if 0 > 1
} yield (a, b, c)).foreach(println)