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package ca.allanwang.kau.kotlin
import org.jetbrains.anko.doAsync
import org.junit.Test
import java.util.*
import java.util.concurrent.CountDownLatch
import java.util.concurrent.TimeUnit
import kotlin.test.assertTrue
/**
* Created by Allan Wang on 2017-08-06.
*/
class ZipTest {
val debug = false
fun p(text: String) {
if (debug) println(text)
}
@Test
fun basic() {
val start = System.currentTimeMillis()
val latch = CountDownLatch(1)
val rnd = Random()
(0..10).map {
{ callback: ZipCallback<Int> ->
doAsync {
val sleepTime = rnd.nextInt(100) + 200L
p("Task $it will sleep for ${sleepTime}ms")
Thread.sleep(sleepTime)
val finish = System.currentTimeMillis()
p("Task $it finished in ${finish - start}ms at $finish")
callback(it)
}; Unit
}
}.zip(-1) { results ->
val finish = System.currentTimeMillis()
println("Results ${results.contentToString()} received in ${finish - start}ms at $finish")
assertTrue((0..10).toList().toTypedArray().contentEquals(results), "Basic zip results do not match")
assertTrue(finish - start < 1000L, "Basic zip does not seem to be running asynchronously")
latch.countDown()
}
latch.await(1100, TimeUnit.MILLISECONDS)
}
@Test
fun basicAsync() {
val start = System.currentTimeMillis()
val latch = CountDownLatch(1)
val rnd = Random()
(0..10).map {
{
val sleepTime = rnd.nextInt(100) + 200L
p("Task $it will sleep for ${sleepTime}ms")
Thread.sleep(sleepTime)
val finish = System.currentTimeMillis()
p("Task $it finished in ${finish - start}ms at $finish")
}
}.zipAsync {
val finish = System.currentTimeMillis()
println("Results received in ${finish - start}ms at $finish")
assertTrue(finish - start < 1000L, "BasicAsync does not seem to be wrapping the tasks asynchronously")
latch.countDown()
}
latch.await(1100, TimeUnit.MILLISECONDS)
}
}
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