validationsHOF&Underscores

validationsShortened.scala

def findX(name:String, keys: (HGSortIndex[K,V], K) => HGSearchResult[V], disc:(Ordering[K],K,K) => Boolean) :
(name, (index:S, dataSeq:Seq[(K,Seq[V])]) => Try
  {
    val allTrue = dataSeq.forall{ case (key, valueSeq)  =>
    {
      val b :HGSearchResult[V]= keys(index, key)
      val ordering =  implicitly[Ordering[K]]
      val c = dataSeq.filter( pair =>  disc(ordering, pair._1,
key)).map(_._1).toSet
      b.forall(key => c.contains(key))
    }
    }
    assert(allTrue, "findGTE failed")
    allTrue
  })

val validatations : Seq[(String, (S,Seq[(K,Seq[V])]) => Try[Boolean])]=
Seq
(
   findX("def findGTE(key: K)",_.findLTE(_),_.lteq(_,_)),
   findX("def findGTE(key: K)",_.findLT(_),_.lt(_,_)),
   findX("def findGTE(key: K)",_.findGT(_),_.gt(_,_)),
   findX("def findGTE(key: K)",_.findGTE(_),_.gteq(_,_))
)