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   * Licensed to the Apache Software Foundation (ASF) under one
   * or more contributor license agreements.  See the NOTICE file
   * distributed with this work for additional information
   * regarding copyright ownership.  The ASF licenses this file
   * to you 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 org.apache.beam.examples.complete.game;
  
  import java.io.Serializable;
  import java.util.Arrays;
  import java.util.List;
  import org.apache.beam.examples.complete.game.UserScore.ExtractAndSumScore;
  import org.apache.beam.examples.complete.game.UserScore.GameActionInfo;
  import org.apache.beam.examples.complete.game.UserScore.ParseEventFn;
  import org.apache.beam.sdk.coders.StringUtf8Coder;
  import org.apache.beam.sdk.testing.PAssert;
  import org.apache.beam.sdk.testing.TestPipeline;
  import org.apache.beam.sdk.transforms.Create;
  import org.apache.beam.sdk.transforms.MapElements;
  import org.apache.beam.sdk.transforms.ParDo;
  import org.apache.beam.sdk.values.KV;
  import org.apache.beam.sdk.values.PCollection;
  import org.apache.beam.sdk.values.TypeDescriptors;
  import org.apache.beam.vendor.guava.v32_1_2_jre.com.google.common.collect.Lists;
  import org.junit.Rule;
  import org.junit.Test;
  import org.junit.runner.RunWith;
  import org.junit.runners.JUnit4;
  
  /** Tests of UserScore. */
  @RunWith(JUnit4.class)
  public class UserScoreTest implements Serializable {
  
    static final String[] GAME_EVENTS_ARRAY =
        new String[] {
          "user0_MagentaKangaroo,MagentaKangaroo,3,1447955630000,2015-11-19 09:53:53.444",
          "user13_ApricotQuokka,ApricotQuokka,15,1447955630000,2015-11-19 09:53:53.444",
          "user6_AmberNumbat,AmberNumbat,11,1447955630000,2015-11-19 09:53:53.444",
          "user7_AlmondWallaby,AlmondWallaby,15,1447955630000,2015-11-19 09:53:53.444",
          "user7_AndroidGreenKookaburra,AndroidGreenKookaburra,12,1447955630000,2015-11-19 09:53:53.444",
          "user6_AliceBlueDingo,AliceBlueDingo,4,xxxxxxx,2015-11-19 09:53:53.444",
          "user7_AndroidGreenKookaburra,AndroidGreenKookaburra,11,1447955630000,2015-11-19 09:53:53.444",
          "THIS IS A PARSE ERROR,2015-11-19 09:53:53.444",
          "user19_BisqueBilby,BisqueBilby,6,1447955630000,2015-11-19 09:53:53.444",
          "user19_BisqueBilby,BisqueBilby,8,1447955630000,2015-11-19 09:53:53.444"
        };
  
    static final String[] GAME_EVENTS_ARRAY2 =
        new String[] {
          "user6_AliceBlueDingo,AliceBlueDingo,4,xxxxxxx,2015-11-19 09:53:53.444",
          "THIS IS A PARSE ERROR,2015-11-19 09:53:53.444",
          "user13_BisqueBilby,BisqueBilby,xxx,1447955630000,2015-11-19 09:53:53.444"
        };
  
    static final List<String> GAME_EVENTS = Arrays.asList(GAME_EVENTS_ARRAY);
    static final List<String> GAME_EVENTS2 = Arrays.asList(GAME_EVENTS_ARRAY2);
  
    static final List<GameActionInfo> GAME_ACTION_INFO_LIST =
        Lists.newArrayList(
            new GameActionInfo("user0_MagentaKangaroo", "MagentaKangaroo", 3, 1447955630000L),
            new GameActionInfo("user13_ApricotQuokka", "ApricotQuokka", 15, 1447955630000L),
            new GameActionInfo("user6_AmberNumbat", "AmberNumbat", 11, 1447955630000L),
            new GameActionInfo("user7_AlmondWallaby", "AlmondWallaby", 15, 1447955630000L),
            new GameActionInfo(
                "user7_AndroidGreenKookaburra", "AndroidGreenKookaburra", 12, 1447955630000L),
            new GameActionInfo(
                "user7_AndroidGreenKookaburra", "AndroidGreenKookaburra", 11, 1447955630000L),
            new GameActionInfo("user19_BisqueBilby", "BisqueBilby", 6, 1447955630000L),
            new GameActionInfo("user19_BisqueBilby", "BisqueBilby", 8, 1447955630000L));
  
    static final List<KV<String, Integer>> USER_SUMS =
        Arrays.asList(
            KV.of("user0_MagentaKangaroo", 3),
            KV.of("user13_ApricotQuokka", 15),
            KV.of("user6_AmberNumbat", 11),
            KV.of("user7_AlmondWallaby", 15),
            KV.of("user7_AndroidGreenKookaburra", 23),
            KV.of("user19_BisqueBilby", 14));
  
    static final List<KV<String, Integer>> TEAM_SUMS =
        Arrays.asList(
            KV.of("MagentaKangaroo", 3),
            KV.of("ApricotQuokka", 15),
            KV.of("AmberNumbat", 11),
            KV.of("AlmondWallaby", 15),
            KV.of("AndroidGreenKookaburra", 23),
            KV.of("BisqueBilby", 14));
  
    @Rule public TestPipeline p = TestPipeline.create();
  
    /** Test the {@link ParseEventFn} {@link org.apache.beam.sdk.transforms.DoFn}. */
    @Test
    public void testParseEventFn() throws Exception {
      PCollection<String> input = p.apply(Create.of(GAME_EVENTS));
      PCollection<GameActionInfo> output = input.apply(ParDo.of(new ParseEventFn()));
  
      PAssert.that(output).containsInAnyOrder(GAME_ACTION_INFO_LIST);
  
      p.run().waitUntilFinish();
    }
  
    /** Tests ExtractAndSumScore("user"). */
    @Test
    public void testUserScoreSums() throws Exception {
  
      PCollection<String> input = p.apply(Create.of(GAME_EVENTS));
  
      PCollection<KV<String, Integer>> output =
          input
              .apply(ParDo.of(new ParseEventFn()))
              // Extract and sum username/score pairs from the event data.
              .apply("ExtractUserScore", new ExtractAndSumScore("user"));
  
      // Check the user score sums.
      PAssert.that(output).containsInAnyOrder(USER_SUMS);
  
      p.run().waitUntilFinish();
    }
  
    /** Tests ExtractAndSumScore("team"). */
    @Test
    public void testTeamScoreSums() throws Exception {
  
      PCollection<String> input = p.apply(Create.of(GAME_EVENTS));
  
      PCollection<KV<String, Integer>> output =
          input
              .apply(ParDo.of(new ParseEventFn()))
              // Extract and sum teamname/score pairs from the event data.
              .apply("ExtractTeamScore", new ExtractAndSumScore("team"));
  
      // Check the team score sums.
      PAssert.that(output).containsInAnyOrder(TEAM_SUMS);
  
      p.run().waitUntilFinish();
    }
  
    /** Test that bad input data is dropped appropriately. */
    @Test
    public void testUserScoresBadInput() throws Exception {
  
      PCollection<String> input = p.apply(Create.of(GAME_EVENTS2).withCoder(StringUtf8Coder.of()));
  
      PCollection<KV<String, Integer>> extract =
          input
              .apply(ParDo.of(new ParseEventFn()))
              .apply(
                  MapElements.into(
                          TypeDescriptors.kvs(TypeDescriptors.strings(), TypeDescriptors.integers()))
                      .via((GameActionInfo gInfo) -> KV.of(gInfo.getUser(), gInfo.getScore())));
  
      PAssert.that(extract).empty();
  
      p.run().waitUntilFinish();
    }
  }
  