engines/src/test/scala/itemrank/TestItemRankEngine.scala

/** Copyright 2014 TappingStone, Inc.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * You may obtain a copy of the License at
  *
  *     http://www.apache.org/licenses/LICENSE-2.0
  *
  * Unless required by applicable law or agreed to in writing, software
  * distributed under the License is distributed on an "AS IS" BASIS,
  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */

/*
package io.prediction.engines.itemrank.test

import io.prediction.engines.itemrank._
import org.json4s._
import org.json4s.native.JsonMethods._
import org.scalatest._
import scala.io.Source._

abstract class UnitSpec extends WordSpec with Matchers with OptionValues with Inside with Inspectors

class TestItemRankEngine extends UnitSpec {

  "An ItemRankPreparator" should {
    val data = fromURL(getClass.getResource("/ItemRankPreparatorData.json"))
      .mkString
    val fixtures = parse(data)

    implicit lazy val formats = org.json4s.DefaultFormats

    for (fixture <- fixtures.children) {
      val name = (fixture \ "name").extract[String]
      val preparatorParams = (fixture \ "preparatorParams")
        .extract[PreparatorParams]
      val users = (fixture \ "users").extract[Map[Int, UserTD]]
      val items = (fixture \ "items").extract[Map[Int, ItemTD]]
      val u2iActions = (fixture \ "u2iActions").extract[Seq[U2IActionTD]]
      val trainingData = new TrainingData(users, items, u2iActions)

      val expect = (fixture \ "expect").extract[Seq[RatingTD]]

      name in {
        val preparator = new ItemRankPreparator(preparatorParams)
        val preparedData = preparator.prepare(trainingData)
        (preparedData.rating zip expect).foreach {
          g => {
            assert(g._1.uindex == g._2.uindex)
            assert(g._1.iindex == g._2.iindex)
            assert(g._1.rating == g._2.rating)
            assert(g._1.t == g._2.t)
          }
        }
      }
    }
  }
}
*/