import scala.collection._
object Test {
def main(args: Array[String]) {
checkElementsAreSorted()
checkRangedImpl()
}
def checkElementsAreSorted() {
val tree = mutable.SortedSet[Int]()
tree ++= List(4, 3, 1, 6, 7, 5, 2)
assert(tree == immutable.SortedSet(1, 2, 3, 4, 5, 6, 7))
assert(tree.size == 7)
}
def checkRangedImpl() {
val tree = mutable.SortedSet[Int](3, 1, 6, 7, 5, 2)
val projection = tree.rangeImpl(Some(3), Some(6))
assert(projection == immutable.SortedSet(3, 5))
assert(projection.size == 2)
// Let's check that modification are taken into account
tree add 4
assert(tree == immutable.SortedSet(1, 2, 3, 4, 5, 6, 7))
assert(projection == immutable.SortedSet(3, 4, 5))
assert(tree.size == 7)
assert(projection.size == 3)
}
}