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import collection.mutable.UnrolledBuffer
object Test {
def main(args: Array[String]) {
val u1 = new UnrolledBuffer[Int]
assert(u1.isEmpty)
assert(u1.size == 0)
u1 += 1
u1 += 2
u1 += 3
assert(u1 == UnrolledBuffer(1, 2, 3))
assert(u1.toList == List(1, 2, 3))
assert(u1.nonEmpty)
assert(u1.size == 3)
u1.clear
assert(u1.isEmpty)
assert(u1.size == 0)
u1 += 1
u1 += 2
u1 += 3
u1.remove(1)
assert(u1.nonEmpty)
assert(u1.size == 2)
assert(u1 == UnrolledBuffer(1, 3))
assert(u1.toList == List(1, 3))
u1 concat UnrolledBuffer(5, 7, 9)
assert(u1 == UnrolledBuffer(1, 3, 5, 7, 9))
val u2 = u1 map { x => (x - 1) / 2 }
assert(u2 == UnrolledBuffer(0, 1, 2, 3, 4))
u1.clear
u2.clear
assert(u1.size == 0)
assert(u2.size == 0)
for (i <- 0 until 500) u1 += i
for (i <- 500 until 1000) u2 += i
assert(u1.size == 500)
assert(u2.size == 500)
assert(u1.iterator.toList == (0 until 500).toList)
assert((for (elem <- u1) yield elem) sameElements (0 until 500))
u1 concat u2
assert(u1.size == 1000)
assert(u2.size == 0)
assertCorrect(u1)
u1 concat UnrolledBuffer()
assertCorrect(u1)
val u3 = u1 map { x => x }
var i = 0
for (elem <- u1) {
assert(elem == u3(i))
i += 1
}
u1.remove(999)
assert(u1.size == 999)
assertCorrect(u1)
u1.remove(500)
assert(u1.size == 998)
assertCorrect(u1)
u1.remove(5)
assert(u1.size == 997)
assertCorrect(u1)
u1.remove(0)
assert(u1.size == 996)
assertCorrect(u1)
u1.insert(0, 0)
assert(u1.size == 997)
assertCorrect(u1)
u1.insert(5, 5)
assert(u1.size == 998)
assertCorrect(u1)
u1.insert(500, 500)
assert(u1.size == 999)
assertCorrect(u1)
u1.insert(999, 999)
assert(u1.size == 1000)
assertCorrect(u1)
for (i <- -100 until 0) {
i +=: u1
assertCorrect(u1)
}
assert(u1.size == 1100)
assertCorrect(u1)
}
def assertCorrect(u1: UnrolledBuffer[Int]) {
val sz = u1.size
val store = new Array[Int](sz)
for (i <- 0 until sz) {
store(i) = u1(i)
u1(i) = sz - i
}
for (i <- 0 until sz) assert(u1(i) == (sz - i))
for (i <- 0 until sz) u1(i) = store(i)
for (i <- 0 until sz) assert(store(i) == u1(i))
assert((u1 map { x => x }) == u1)
assert(u1.iterator.toSeq.size == u1.size)
}
}
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