testcases-chop.scala

def main(args: Array[String]){
  test(-1, 2, Array.emptyIntArray)
  test(0, 1, Array(1,2,3,4,5))
  test(2, 3, Array(1,2,3,4,5))
  test(2, 3, Array(1,2,3))
  test(0, 1, Array(1))
  test(4, 5, Array(1,2,3,4,5))
  test(3, 4, Array(1,2,3,4,5))
  test(1, 2, Array(1,2,3,4,5))
  test(-1, 0, Array(1,2,3,4,5))
  test(-1, 7, Array(1,2,3,4,5))
}

def test(expected: Int, target: Int, searchBox: Array[Int]): Unit ={
  assert(expected, chop(target, searchBox))
}