import collection.mutable.ListBuffer
object Test extends App {
def newLB = ListBuffer('a, 'b, 'c, 'd, 'e)
val lb0 = newLB
println("Trying lb0 ...")
try {
lb0.remove(5, 0)
} catch {
// Not thrown in 2.10, will be thrown in 2.11
case ex: IndexOutOfBoundsException => println(ex)
}
checkNotCorrupted(lb0)
val lb1 = newLB
println("Trying lb1 ...")
try {
lb1.remove(6, 6)
} catch {
// Not thrown in 2.10, will be thrown in 2.11
case ex: IndexOutOfBoundsException => println(ex)
}
checkNotCorrupted(lb1)
val lb2 = newLB
println("Trying lb2 ...")
try {
lb2.remove(99, 6)
} catch {
// Not thrown in 2.10, will be thrown in 2.11
case ex: IndexOutOfBoundsException => println(ex)
}
checkNotCorrupted(lb2)
val lb3 = newLB
println("Trying lb3 ...")
try {
lb3.remove(1, 9)
} catch {
// Not thrown in 2.10, will be thrown in 2.11
case ex: IllegalArgumentException => println(ex)
}
checkNotCorrupted(lb3, "ListBuffer('a)", 1)
val lb4 = newLB
println("Trying lb4 ...")
try {
lb4.remove(-1, 1)
} catch {
// Not thrown in 2.10, will be thrown in 2.11
case ex: IndexOutOfBoundsException => println(ex)
}
checkNotCorrupted(lb4, "ListBuffer('b, 'c, 'd, 'e)", 4)
val lb5 = newLB
println("Trying lb5 ...")
try {
lb5.remove(1, -1)
} catch {
case ex: IllegalArgumentException => println(ex)
}
checkNotCorrupted(lb5)
// buffer should neither be changed nor corrupted after calling remove with invalid arguments
def checkNotCorrupted(
lb: ListBuffer[Symbol],
expectedString: String = "ListBuffer('a, 'b, 'c, 'd, 'e)",
expectedLength: Int = 5) = {
println("Checking ...")
val replStr = scala.runtime.ScalaRunTime.replStringOf(lb, 100)
if (replStr == expectedString + "\n") println("String OK.")
else println("!!! replStringOf FAILED: " + replStr)
val len = lb.length
if (len == expectedLength) println("Length OK.")
else println("!!! length FAILED: " + len)
println()
}
}