Validate sequence of numbers within allowed range / bounds

foo.scala

val valuesRight = Seq(1, 2, 3, 4, 5, 6, 7)
val valuesWrong = Seq(1, 2, 5, 6, 7, 8, 9)
val allowedValues = Range(1, 8)

def containsNotAllowedValues(allowed: Range, input: Seq[Int]): Boolean = {
    !allowed.containsSlice(input)
}

containsNotAllowedValues(allowedValues, valuesRight) // expected false as no wrong element contained
// result: false ==> correct
containsNotAllowedValues(allowedValues, valuesWrong) // expected true as at least single wrong element is contained
// result: true ==> correct

// ------------------------

val valuesRightPartialMatch = Seq(1,3, 7)
containsNotAllowedValues(allowedValues, valuesRightPartialMatch) // expected true as at least single wrong element is contained
// result: true ==> incorrect, should also return false as no invalid number is found

see the discussion at https://stackoverflow.com/questions/57304958/validate-that-sequence-of-numbers-are-within-allowed-range/57305205?noredirect=1#comment101106747_57305205

It was my mistake that I did not specify

val valuesRightPartialMatch = Seq(1,3, 7)

initially as well.