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import scala.reflect.runtime.universe._
// this test checks that under heavily multithreaded conditions:
// 1) scala.reflect.runtime.universe, its rootMirror and definitions are initialized correctly
// 2) symbols are correctly materialized into PackageScopes (no dupes)
// 3) unpickling works okay even we unpickle the same symbol a lot of times
object Test extends App {
def foo[T: TypeTag](x: T) = typeOf[T].toString
val n = 1000
val rng = new scala.util.Random()
val types = List(
() => typeOf[java.lang.reflect.Method],
() => typeOf[java.lang.annotation.Annotation],
() => typeOf[scala.io.BufferedSource],
() => typeOf[scala.io.Codec])
val perms = types.permutations.toList
def force(lazytpe: () => Type): String = {
lazytpe().typeSymbol.info
lazytpe().toString
}
val diceRolls = List.fill(n)(rng.nextInt(perms.length))
val threads = (1 to n) map (i => new Thread(s"Reflector-$i") {
override def run(): Unit = {
val s1 = foo("42")
val s2 = perms(diceRolls(i - 1)).map(x => force(x)).sorted.mkString(", ")
assert(s1 == "String" || s1 == "java.lang.String")
assert(s2 == "java.lang.annotation.Annotation, java.lang.reflect.Method, scala.io.BufferedSource, scala.io.Codec")
}
})
threads foreach (_.start)
}
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