rides-and-fares/src/test/scala/org/apache/flink/training/exercises/ridesandfares/scala/RidesAndFaresTest.scala

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 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
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 *     http://www.apache.org/licenses/LICENSE-2.0
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package org.apache.flink.training.exercises.ridesandfares.scala

import java.util

import org.apache.flink.api.java.tuple
import org.apache.flink.training.exercises.common.datatypes.{TaxiFare, TaxiRide}
import org.apache.flink.training.exercises.ridesandfares
import org.apache.flink.training.exercises.testing.TaxiRideTestBase
import org.apache.flink.training.solutions.ridesandfares.scala.RidesAndFaresSolution

class RidesAndFaresTest extends ridesandfares.RidesAndFaresTest{
  private val scalaExercise: TaxiRideTestBase.Testable = () => RidesAndFaresExercise.main(Array.empty[String])

  @throws[Exception]
  override protected def results(rides: TaxiRideTestBase.TestRideSource, fares: TaxiRideTestBase.TestFareSource): util.List[tuple.Tuple2[TaxiRide, TaxiFare]] = {
    val scalaSolution: TaxiRideTestBase.Testable = () => RidesAndFaresSolution.main(Array.empty[String])
    val tuples: util.List[_] = runApp(rides, fares, new TaxiRideTestBase.TestSink[tuple.Tuple2[TaxiRide, TaxiFare]], scalaExercise, scalaSolution)
    javaTuples(tuples.asInstanceOf[util.List[(TaxiRide, TaxiFare)]])
  }

  private def javaTuples(a: util.List[(TaxiRide, TaxiFare)]): util.ArrayList[tuple.Tuple2[TaxiRide, TaxiFare]] = {
    val javaCopy: util.ArrayList[tuple.Tuple2[TaxiRide, TaxiFare]] = new util.ArrayList[tuple.Tuple2[TaxiRide, TaxiFare]](a.size)
    a.iterator.forEachRemaining((t: (TaxiRide, TaxiFare)) => javaCopy.add(tuple.Tuple2.of(t._1, t._2)))
    javaCopy
  }

}