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package scala.collection.immutable
import org.junit.runner.RunWith
import org.junit.runners.JUnit4
import org.junit.Test
@RunWith(classOf[JUnit4])
/* Tests for collection.immutable.Queue */
class QueueTest {
val emptyQueue = Queue.empty[Int]
val oneAdded = emptyQueue.enqueue(1)
val threeAdded = emptyQueue.enqueue(1 to 3)
@Test
def dequeueOptionOnEmpty() {
assert( emptyQueue.dequeueOption == None )
}
@Test
def dequeueOptionOneAdded() {
assert( oneAdded.dequeueOption == Some((1,emptyQueue)) )
}
@Test
def dequeueOptionThreeAdded() {
assert( threeAdded.dequeueOption == Some((1,Queue(2 to 3:_*))) )
}
}
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