Added calculation of overall seat allocation

module-server/src/main/java/de/twomartens/wahlrecht/model/Nomination.java

@@ -2,6 +2,7 @@ package de.twomartens.wahlrecht.model;
 
 import java.util.ArrayList;
 import java.util.Arrays;
+import java.util.Collection;
 import java.util.HashMap;
 import java.util.List;
 import java.util.Map;
@@ -35,6 +36,10 @@ public class Nomination {
     Arrays.stream(candidates).forEach(this::addCandidate);
   }
 
+  public void addCandidates(Collection<Candidate> candidates) {
+    candidates.forEach(this::addCandidate);
+  }
+
   public Candidate getCandidate(int position) {
     return positionToCandidate.get(position);
   }

module-server/src/main/java/de/twomartens/wahlrecht/model/SeatResult.java

@@ -0,0 +1,11 @@
+package de.twomartens.wahlrecht.model;
+
+import java.util.Deque;
+import java.util.Map;
+import lombok.Builder;
+
+@Builder
+public record SeatResult(Map<Nomination, Long> seatsPerNomination,
+                         Deque<Double> usedElectionNumbers) {
+
+}

module-server/src/main/java/de/twomartens/wahlrecht/model/VotingResult.java

@@ -8,18 +8,21 @@ import lombok.Getter;
 public class VotingResult {
 
   private final int votesOnNomination;
+  private final int votesThroughHealing;
   private final Map<Integer, Integer> votesPerPosition;
   private Integer totalVotes = null;
 
   @Builder
-  public VotingResult(int votesOnNomination, Map<Integer, Integer> votesPerPosition) {
+  public VotingResult(int votesOnNomination, int votesThroughHealing,
+      Map<Integer, Integer> votesPerPosition) {
     this.votesOnNomination = votesOnNomination;
+    this.votesThroughHealing = votesThroughHealing;
     this.votesPerPosition = votesPerPosition;
   }
 
   public int getTotalVotes() {
     if (totalVotes == null) {
-      totalVotes = votesOnNomination + votesPerPosition.values().stream()
+      totalVotes = votesOnNomination + votesThroughHealing + votesPerPosition.values().stream()
           .reduce(0, Integer::sum);
     }
     return totalVotes;

module-server/src/main/java/de/twomartens/wahlrecht/service/CalculationService.java

@@ -3,7 +3,9 @@ package de.twomartens.wahlrecht.service;
 import de.twomartens.wahlrecht.model.Candidate;
 import de.twomartens.wahlrecht.model.Constituency;
 import de.twomartens.wahlrecht.model.ElectedResult;
+import de.twomartens.wahlrecht.model.Election;
 import de.twomartens.wahlrecht.model.Nomination;
+import de.twomartens.wahlrecht.model.SeatResult;
 import de.twomartens.wahlrecht.model.VotingResult;
 import java.util.ArrayDeque;
 import java.util.ArrayList;
@@ -19,7 +21,7 @@ import org.springframework.lang.NonNull;
 import org.springframework.stereotype.Service;
 
 @Service
-public class ConstituencyCalculationService {
+public class CalculationService {
   private final Deque<Double> electionNumberHistory = new ArrayDeque<>();
 
   public ElectedResult calculateConstituency(@NonNull Constituency constituency,
@@ -41,6 +43,42 @@ public class ConstituencyCalculationService {
         .build();
   }
 
+  public SeatResult calculateOverallSeatDistribution(@NonNull Election election,
+      @NonNull Collection<Nomination> nominations) {
+    electionNumberHistory.clear();
+    int totalVotes = nominations.stream()
+        .map(Nomination::getVotingResult)
+        .map(VotingResult::getTotalVotes)
+        .reduce(0, Integer::sum);
+
+    List<Nomination> validNominations = new ArrayList<>();
+    int totalIgnoredVotes = 0;
+    for (Nomination nomination : nominations) {
+      if (passesVotingThreshold(election, totalVotes, nomination)) {
+        validNominations.add(nomination);
+      } else {
+        totalIgnoredVotes += nomination.getVotingResult().getTotalVotes();
+      }
+    }
+    totalVotes -= totalIgnoredVotes;
+
+    int numberOfSeats = election.totalNumberOfSeats();
+    double initialElectionNumber = totalVotes / (double) numberOfSeats;
+
+    Map<Nomination, Long> assignedSeatsPerNomination = calculateAssignedSeatsPerNomination(
+        validNominations, numberOfSeats, initialElectionNumber);
+
+    return SeatResult.builder()
+        .seatsPerNomination(assignedSeatsPerNomination)
+        .usedElectionNumbers(electionNumberHistory)
+        .build();
+  }
+
+  private static boolean passesVotingThreshold(Election election, int totalVotes, Nomination nomination) {
+    return totalVotes * election.votingThreshold().getMultiplier()
+        <= nomination.getVotingResult().getTotalVotes();
+  }
+
   @NonNull
   private Map<Nomination, Collection<Candidate>> findElectedCandidates(
       @NonNull Map<Nomination, Long> assignedSeatsPerNomination) {

module-server/src/test/java/de/twomartens/wahlrecht/service/CalculationServiceTest.java

@@ -0,0 +1,348 @@
+package de.twomartens.wahlrecht.service;
+
+import de.twomartens.wahlrecht.model.Candidate;
+import de.twomartens.wahlrecht.model.Constituency;
+import de.twomartens.wahlrecht.model.ElectedResult;
+import de.twomartens.wahlrecht.model.Election;
+import de.twomartens.wahlrecht.model.Nomination;
+import de.twomartens.wahlrecht.model.SeatResult;
+import de.twomartens.wahlrecht.model.VotingResult;
+import de.twomartens.wahlrecht.model.VotingThreshold;
+import java.time.LocalDate;
+import java.time.Month;
+import java.util.Arrays;
+import java.util.Collection;
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+import org.assertj.core.api.Assertions;
+import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.api.Test;
+import org.springframework.lang.NonNull;
+
+class CalculationServiceTest {
+  private static final Constituency EIMSBUETTEL_NORD = new Constituency("Eimsbüttel-Nord", 3);
+  private static final Constituency EIMSBUETTEL_SUED = new Constituency("Eimsbüttel-Süd", 5);
+  private static final Constituency HARO = new Constituency("Rotherbaum/Harvestehude", 4);
+  private static final Constituency LOKSTEDT = new Constituency("Lokstedt", 3);
+  private static final Constituency NIENDORF = new Constituency("Niendorf", 5);
+  private static final Constituency SCHNELSEN = new Constituency("Schnelsen", 3);
+  private static final Constituency EIDELSTEDT = new Constituency("Eidelstedt", 4);
+  private static final Constituency STELLINGEN = new Constituency("Stellingen", 3);
+  private static final Nomination SPD_NIENDORF = buildNomination("SPD-Niendorf", false);
+  private static final Nomination CDU_NIENDORF = buildNomination("CDU-Niendorf", false);
+  private static final Nomination FDP_NIENDORF = buildNomination("FDP-Niendorf", false);
+  private static final Nomination LINKE_NIENDORF = buildNomination("LINKE-Niendorf", false);
+  private static final Nomination GRUENE_NIENDORF = buildNomination("GRUENE-Niendorf", false);
+  private static final Nomination AFD_NIENDORF = buildNomination("AFD-Niendorf", false);
+
+  private static final Nomination SPD_BEZIRK = buildNomination("SPD-Bezirk", true);
+  private static final Nomination CDU_BEZIRK = buildNomination("CDU-Bezirk", true);
+  private static final Nomination FDP_BEZIRK = buildNomination("FDP-Bezirk", true);
+  private static final Nomination LINKE_BEZIRK = buildNomination("LINKE-Bezirk", true);
+  private static final Nomination GRUENE_BEZIRK = buildNomination("GRUENE-Bezirk", true);
+  private static final Nomination AFD_BEZIRK = buildNomination("AFD-Bezirk", true);
+  private static final Nomination PIRATEN_BEZIRK = buildNomination("Piraten-Bezirk", true);
+
+  private CalculationService service;
+
+  @BeforeEach
+  void setService() {
+    service = new CalculationService();
+  }
+
+  @Test
+  void shouldCalculateConstituencyCorrectly() {
+    Collection<Nomination> nominations = List.of(
+        SPD_NIENDORF,
+        CDU_NIENDORF,
+        LINKE_NIENDORF,
+        FDP_NIENDORF,
+        GRUENE_NIENDORF,
+        AFD_NIENDORF
+    );
+    setUpCandidatesConstituency();
+    setUpResultsConstituency();
+
+    ElectedResult elected = service.calculateConstituency(NIENDORF, nominations);
+
+    Assertions.assertThat(elected.electedCandidates())
+        .containsKey(SPD_NIENDORF)
+        .containsKey(CDU_NIENDORF)
+        .containsKey(GRUENE_NIENDORF)
+        .doesNotContainKey(LINKE_NIENDORF)
+        .doesNotContainKey(AFD_NIENDORF)
+        .doesNotContainKey(FDP_NIENDORF);
+  }
+
+  @Test
+  void shouldCalculateOverallSeatsCorrectly() {
+    Collection<Constituency> constituencies = List.of(
+        EIMSBUETTEL_NORD, EIMSBUETTEL_SUED, HARO,
+        LOKSTEDT, NIENDORF, SCHNELSEN, EIDELSTEDT, STELLINGEN);
+    Election election = new Election("Bezirkswahl 2019",
+        LocalDate.of(2019, Month.MAY, 26), VotingThreshold.THREE,
+        51, constituencies);
+    Collection<Nomination> nominations = List.of(
+        SPD_BEZIRK,
+        CDU_BEZIRK,
+        LINKE_BEZIRK,
+        FDP_BEZIRK,
+        GRUENE_BEZIRK,
+        AFD_BEZIRK
+    );
+    setUpCandidatesOverall();
+    setUpResultsOverall();
+
+    SeatResult result = service.calculateOverallSeatDistribution(election, nominations);
+
+    Assertions.assertThat(result.seatsPerNomination())
+        .containsEntry(SPD_BEZIRK, 12L)
+        .containsEntry(CDU_BEZIRK, 9L)
+        .containsEntry(LINKE_BEZIRK, 5L)
+        .containsEntry(FDP_BEZIRK, 3L)
+        .containsEntry(GRUENE_BEZIRK, 19L)
+        .containsEntry(AFD_BEZIRK, 3L);
+  }
+
+  private void setUpCandidatesConstituency() {
+    SPD_NIENDORF.addCandidates(new Candidate("Schwarzarius, Ines", ""));
+    SPD_NIENDORF.addCandidates(new Candidate("Urbanski, Torge", ""));
+    SPD_NIENDORF.addCandidates(new Candidate("Fischbach-Pyttel, Carola", ""));
+    SPD_NIENDORF.addCandidates(new Candidate("Bäcker, Guido", ""));
+    SPD_NIENDORF.addCandidates(new Candidate("Porr, Ulrike", ""));
+    SPD_NIENDORF.addCandidates(new Candidate("Petersen, Johannes", ""));
+    SPD_NIENDORF.addCandidates(new Candidate("Kröger, Manuela-Andrea", ""));
+    SPD_NIENDORF.addCandidates(new Candidate("Steppat, Wolfgang", ""));
+    SPD_NIENDORF.addCandidates(new Candidate("Canbay, Berfin", ""));
+    SPD_NIENDORF.addCandidates(new Candidate("Schumacher, Wolfgang", ""));
+
+    CDU_NIENDORF.addCandidates(new Candidate("Kuhn, Rüdiger", ""));
+    CDU_NIENDORF.addCandidates(new Candidate("Ahrens, Mareike", ""));
+    CDU_NIENDORF.addCandidates(new Candidate("Wysocki, Michael", ""));
+    CDU_NIENDORF.addCandidates(new Candidate("Dönselmann, Malte", ""));
+    CDU_NIENDORF.addCandidates(new Candidate("Seehaber, Daniel", ""));
+
+    LINKE_NIENDORF.addCandidates(new Candidate("Dr. Khenkhar, Malik", ""));
+    LINKE_NIENDORF.addCandidates(new Candidate("Radom, Claudia", ""));
+    LINKE_NIENDORF.addCandidates(new Candidate("Kara, Başak", ""));
+
+    FDP_NIENDORF.addCandidates(new Candidate("Häffs, Marvin", ""));
+    FDP_NIENDORF.addCandidates(new Candidate("Bahmer, Larissa", ""));
+    FDP_NIENDORF.addCandidates(new Candidate("Patzer, Heinrich-Otto", ""));
+
+    GRUENE_NIENDORF.addCandidates(new Candidate("Demirhan, Sina", ""));
+    GRUENE_NIENDORF.addCandidates(new Candidate("Schmidt, Lutz", "Redakteur"));
+
+    AFD_NIENDORF.addCandidates(new Candidate("Hanssen, Wolfgang", ""));
+  }
+
+  private void setUpResultsConstituency() {
+    SPD_NIENDORF.setVotingResult(VotingResult.builder()
+        .votesOnNomination(0)
+        .votesPerPosition(Map.of(
+            1, 11882,
+            2, 7617,
+            3, 1946,
+            4, 1743,
+            5, 1363,
+            6, 762,
+            7, 895,
+            8, 1598,
+            9, 1786,
+            10, 781
+        ))
+        .build());
+
+    CDU_NIENDORF.setVotingResult(VotingResult.builder()
+        .votesOnNomination(0)
+        .votesPerPosition(Map.of(
+            1, 10733,
+            2, 4550,
+            3, 2310,
+            4, 2333,
+            5, 2565
+        ))
+        .build());
+
+    LINKE_NIENDORF.setVotingResult(VotingResult.builder()
+        .votesOnNomination(0)
+        .votesPerPosition(Map.of(
+            1, 3782,
+            2, 1584,
+            3, 1185
+        ))
+        .build());
+
+    FDP_NIENDORF.setVotingResult(VotingResult.builder()
+        .votesOnNomination(0)
+        .votesPerPosition(Map.of(
+            1, 2498,
+            2, 3200,
+            3, 992
+        ))
+        .build());
+
+    GRUENE_NIENDORF.setVotingResult(VotingResult.builder()
+        .votesOnNomination(0)
+        .votesPerPosition(Map.of(
+            1, 14838,
+            2, 12501
+        ))
+        .build());
+
+    AFD_NIENDORF.setVotingResult(VotingResult.builder()
+        .votesOnNomination(0)
+        .votesPerPosition(Map.of(
+            1, 6616
+        ))
+        .build());
+  }
+
+  private void setUpCandidatesOverall() {
+    SPD_BEZIRK.addCandidates(buildCandidates(
+        "Gottlieb, Gabor", "Meding, Sarah", "Harringa, Nils", "Nendza-Ammar, Charlotte",
+        "Rust, Rüdiger", "Köster-Marjanovic, Hannelore", "Riegel, Ann-Kathrin", "Rüter, Monika",
+        "Heise, Elk", "Fischbach-Pyttel, Carola", "Schirmer, Stephan-Philipp", "Telljohann, Katharina",
+        "Röder, Wilfried", "Dr. Matiss, Claudia", "Koßel, Uwe", "Wagner, Saskia", "Bäcker, Guido",
+        "Tiben-Thörner, Karin", "Ptach, Stephan", "Steinbiß, Emily", "Berisha, Dafina",
+        "Meyer, Simon", "Porr, Ulrike", "Lange, Frederik", "Oliva, Nora", "Drossinakis, Panagiotis",
+        "Jacobs, Ruth", "Bernstein, Til", "Kröger, Manuela-Andrea", "Dr. Enzmann, Dirk",
+        "Schilling, Alexandra", "Abboud, Hussein", "Petersen, Britt", "Petersen, Johannes",
+        "Petersen, Doris", "Frese, Gabor", "Suh-von Bremen, Sun Won", "Steppat, Wolfgang",
+        "Hildebrand, Denise"
+    ));
+
+    CDU_BEZIRK.addCandidates(buildCandidates(
+        "Höflich, Jutta", "Könecke, Christian", "Birnbaum, Andreas", "Möller-Fiedler, Sybille",
+        "Kochmann, Franziska", "von Deutsch, Christiane", "Hoffmann, Bernd", "Holst, Christian",
+        "Lau, Roman", "Hille, Robert", "Ahrens, Mareike", "Dr. Langhein, A.W.Heinrich",
+        "Wichmann, Norbert", "Lau, Johanna", "Czernotzky, Birgit", "von Sawilski, Marlies",
+        "Dönselmann, Malte",
+        "Jarzembowski, Daniel", "Howe, Sönke", "Recknagel, Dennis", "Dieball, Laura",
+        "Josefowsky, Ernst Günther", "Wysocki, Michael", "Thomsen, Thomas", "Greshake, Sascha",
+        "Thiesen, Marianne",
+        "Schüller, Michael", "Jacobs, Jürgen", "Weiler, Johannes", "Howe, Raphaela"
+    ));
+
+    LINKE_BEZIRK.addCandidates(buildCandidates(
+        "Pagels, Manuela", "Wiegmann, Roland", "Peters, Ralf", "Hoyer, Jonas",
+        "Kleinert, Mikey", "Schulte, Kolja", "Huwald, Kristin", "Dr. Ritter, Sabine",
+        "Pirling, David", "Reipschläger, Bernhard", "Arndt, Thomas", "Artus, Holger",
+        "WLaab, Helene"
+    ));
+
+    GRUENE_BEZIRK.addCandidates(buildCandidates(
+        "Kern, Lisa", "Hadji Mir Agha, Ali", "Dr. Putz, Miriam", "Kuhlmann, Dietmar",
+        "Dr. Hunter, Lynne", "Schmidt-Tobler, Falk", "Demirhan, Sina", "Klein, Robert",
+        "Erk, Aramak", "Martens, Jim", "Warnecke, Anne Kathrin", "Dr. Fischer, Jost Leonhardt",
+        "Kost, Cornelia", "Brandt, Christopher", "Schübel, Nina Joana", "Schmidt, Lutz",
+        "Wolf, Rita",
+        "Alam, Leon", "Schwarzwald, Cristina", "Thies, Nico", "Hasselmann, Annette",
+        "Koriath, Jan", "Küll, Gabriela", "Köhler, Kevin", "Hericks, Susanne",
+        "Bohny, Carl Maria",
+        "Fester, Emilia", "Hofmann, Klaus-Dieter", "Neumann, Bernd", "Braasch, Julian",
+        "Dorsch, Sebastian", "Hasselmann, Harald"
+    ));
+
+    FDP_BEZIRK.addCandidates(buildCandidates(
+        "Krüger, Klaus", "Schwanke, Benjamin", "Cleven, Martina", "Zielinski, Mathias",
+        "Thiele, Camilla Joyce", "Krüger, Hannelore", "Welling, Jörg", "Häffs, Marvin",
+        "Korb, Hendrik", "Bahmer, Larissa", "Langbehn, Marian", "Szrubarski, Sebastian",
+        "Patzer, Heinrich-Otto", "Sosin, Tatjana", "Damm, Renate", "Müller-Sönksen, Burkhardt"
+    ));
+
+    AFD_BEZIRK.addCandidates(buildCandidates(
+        "Schömer, Dirk", "Zimmermann, Elke", "Pillatzke, Jörg", "Pohl, Christian",
+        "Hanssen, Wolfgang", "Lemke, Martin", "Cremer-Thursby, Marc", "Schultz, Thomas",
+        "Ziob, Peter"
+    ));
+
+    PIRATEN_BEZIRK.addCandidates(buildCandidates(
+        "Dr. Siebert-Schütz, Martin", "Mewes, Christoph", "Brümmer, Amadeus"
+    ));
+  }
+
+  private void setUpResultsOverall() {
+    SPD_BEZIRK.setVotingResult(VotingResult.builder()
+        .votesOnNomination(84703)
+        .votesThroughHealing(985)
+        .votesPerPosition(buildVotesPerPosition(
+            8782, 3318, 3825, 3519, 2036, 3923, 5427, 2131, 566, 895, 1425, 1924, 819,
+            2590, 2190, 3568, 742, 401, 554, 1133, 1268, 580, 254, 1217, 693, 1359, 481,
+            650, 230, 1544, 1080, 1879, 400, 353, 525, 469, 196, 759, 872
+        ))
+        .build());
+
+    CDU_BEZIRK.setVotingResult(VotingResult.builder()
+        .votesOnNomination(66245)
+        .votesThroughHealing(660)
+        .votesPerPosition(buildVotesPerPosition(
+            5966, 1982, 1604, 2414, 1322, 2237, 1868, 1872, 1889, 881, 1253, 2921, 598,
+            2721, 618, 941, 620, 837, 378, 594, 484, 584, 472, 408, 748, 650, 282,
+            315, 1397, 502
+        ))
+        .build());
+
+    LINKE_BEZIRK.setVotingResult(VotingResult.builder()
+        .votesOnNomination(47452)
+        .votesThroughHealing(330)
+        .votesPerPosition(buildVotesPerPosition(
+            4890, 875, 1532, 1293, 2321, 696, 1843, 2212, 1488, 483, 764, 572, 892
+        ))
+        .build());
+
+    GRUENE_BEZIRK.setVotingResult(VotingResult.builder()
+        .votesOnNomination(150842)
+        .votesThroughHealing(900)
+        .votesPerPosition(buildVotesPerPosition(
+            10586, 5629, 12597, 2935, 3378, 735, 5662, 4021, 2065, 2469, 1561, 3557, 2290,
+            1411, 2445, 1761, 1252, 1628, 652, 3524, 677, 843, 2375, 500, 1674, 3264, 1569,
+            531, 531, 652, 5358, 2129
+        ))
+        .build());
+
+    FDP_BEZIRK.setVotingResult(VotingResult.builder()
+        .votesOnNomination(24435)
+        .votesThroughHealing(240)
+        .votesPerPosition(buildVotesPerPosition(
+            3528, 1964, 1633, 897, 1193, 355, 401, 1012, 496, 1242, 643, 300, 311,
+            998, 505, 2181
+        ))
+        .build());
+
+    AFD_BEZIRK.setVotingResult(VotingResult.builder()
+        .votesOnNomination(21625)
+        .votesThroughHealing(220)
+        .votesPerPosition(buildVotesPerPosition(
+            1226, 1950, 3007, 874, 1032, 780, 535, 221, 283
+        ))
+        .build());
+
+    PIRATEN_BEZIRK.setVotingResult(VotingResult.builder()
+        .votesOnNomination(6715)
+        .votesThroughHealing(25)
+        .votesPerPosition(buildVotesPerPosition(
+            871, 1907, 987
+        ))
+        .build());
+  }
+
+  private static Nomination buildNomination(String name, boolean supportVotesOnNomination) {
+    return new Nomination(name, supportVotesOnNomination);
+  }
+
+  private static Collection<Candidate> buildCandidates(String... names) {
+    return Arrays.stream(names).map(name -> new Candidate(name, "")).toList();
+  }
+
+  @NonNull
+  private static Map<Integer, Integer> buildVotesPerPosition(@NonNull int... votes) {
+    Map<Integer, Integer> votesPerPosition = new HashMap<>();
+    for (int i = 0; i < votes.length; i++) {
+      int vote = votes[i];
+      votesPerPosition.put(i + 1, vote);
+    }
+    return votesPerPosition;
+  }
+}

module-server/src/test/java/de/twomartens/wahlrecht/service/ConstituencyCalculationServiceTest.java

@@ -1,152 +0,0 @@
-package de.twomartens.wahlrecht.service;
-
-import de.twomartens.wahlrecht.model.Candidate;
-import de.twomartens.wahlrecht.model.Constituency;
-import de.twomartens.wahlrecht.model.ElectedResult;
-import de.twomartens.wahlrecht.model.Nomination;
-import de.twomartens.wahlrecht.model.VotingResult;
-import java.util.Collection;
-import java.util.List;
-import java.util.Map;
-import org.assertj.core.api.Assertions;
-import org.junit.jupiter.api.BeforeEach;
-import org.junit.jupiter.api.Test;
-
-class ConstituencyCalculationServiceTest {
-  private static final Nomination SPD_NIENDORF = buildNomination("SPD-Niendorf");
-  private static final Nomination CDU_NIENDORF = buildNomination("CDU-Niendorf");
-  private static final Nomination FDP_NIENDORF = buildNomination("FDP-Niendorf");
-  private static final Nomination LINKE_NIENDORF = buildNomination("LINKE-Niendorf");
-  private static final Nomination GRUENE_NIENDORF = buildNomination("GRUENE-Niendorf");
-  private static final Nomination AFD_NIENDORF = buildNomination("AFD-Niendorf");
-
-  private ConstituencyCalculationService service;
-
-  @BeforeEach
-  void setService() {
-    service = new ConstituencyCalculationService();
-  }
-
-  @Test
-  void shouldCalculateConstituencyCorrectly() {
-    Constituency constituency = new Constituency("Niendorf", 5);
-    Collection<Nomination> nominations = List.of(
-        SPD_NIENDORF,
-        CDU_NIENDORF,
-        LINKE_NIENDORF,
-        FDP_NIENDORF,
-        GRUENE_NIENDORF,
-        AFD_NIENDORF
-    );
-    setUpCandidates();
-    setUpResults();
-
-    ElectedResult elected = service.calculateConstituency(constituency, nominations);
-
-    Assertions.assertThat(elected.electedCandidates())
-        .containsKey(SPD_NIENDORF)
-        .containsKey(CDU_NIENDORF)
-        .containsKey(GRUENE_NIENDORF)
-        .doesNotContainKey(LINKE_NIENDORF)
-        .doesNotContainKey(AFD_NIENDORF)
-        .doesNotContainKey(FDP_NIENDORF);
-  }
-
-  private void setUpCandidates() {
-    SPD_NIENDORF.addCandidates(new Candidate("Schwarzarius, Ines", ""));
-    SPD_NIENDORF.addCandidates(new Candidate("Urbanski, Torge", ""));
-    SPD_NIENDORF.addCandidates(new Candidate("Fischbach-Pyttel, Carola", ""));
-    SPD_NIENDORF.addCandidates(new Candidate("Bäcker, Guido", ""));
-    SPD_NIENDORF.addCandidates(new Candidate("Porr, Ulrike", ""));
-    SPD_NIENDORF.addCandidates(new Candidate("Petersen, Johannes", ""));
-    SPD_NIENDORF.addCandidates(new Candidate("Kröger, Manuela-Andrea", ""));
-    SPD_NIENDORF.addCandidates(new Candidate("Steppat, Wolfgang", ""));
-    SPD_NIENDORF.addCandidates(new Candidate("Canbay, Berfin", ""));
-    SPD_NIENDORF.addCandidates(new Candidate("Schumacher, Wolfgang", ""));
-
-    CDU_NIENDORF.addCandidates(new Candidate("Kuhn, Rüdiger", ""));
-    CDU_NIENDORF.addCandidates(new Candidate("Ahrens, Mareike", ""));
-    CDU_NIENDORF.addCandidates(new Candidate("Wysocki, Michael", ""));
-    CDU_NIENDORF.addCandidates(new Candidate("Dönselmann, Malte", ""));
-    CDU_NIENDORF.addCandidates(new Candidate("Seehaber, Daniel", ""));
-
-    LINKE_NIENDORF.addCandidates(new Candidate("Dr. Khenkhar, Malik", ""));
-    LINKE_NIENDORF.addCandidates(new Candidate("Radom, Claudia", ""));
-    LINKE_NIENDORF.addCandidates(new Candidate("Kara, Başak", ""));
-
-    FDP_NIENDORF.addCandidates(new Candidate("Häffs, Marvin", ""));
-    FDP_NIENDORF.addCandidates(new Candidate("Bahmer, Larissa", ""));
-    FDP_NIENDORF.addCandidates(new Candidate("Patzer, Heinrich-Otto", ""));
-
-    GRUENE_NIENDORF.addCandidates(new Candidate("Demirhan, Sina", ""));
-    GRUENE_NIENDORF.addCandidates(new Candidate("Schmidt, Lutz", "Redakteur"));
-
-    AFD_NIENDORF.addCandidates(new Candidate("Hanssen, Wolfgang", ""));
-  }
-
-  private void setUpResults() {
-    SPD_NIENDORF.setVotingResult(VotingResult.builder()
-        .votesOnNomination(0)
-        .votesPerPosition(Map.of(
-            1, 11882,
-            2, 7617,
-            3, 1946,
-            4, 1743,
-            5, 1363,
-            6, 762,
-            7, 895,
-            8, 1598,
-            9, 1786,
-            10, 781
-        ))
-        .build());
-
-    CDU_NIENDORF.setVotingResult(VotingResult.builder()
-        .votesOnNomination(0)
-        .votesPerPosition(Map.of(
-            1, 10733,
-            2, 4550,
-            3, 2310,
-            4, 2333,
-            5, 2565
-        ))
-        .build());
-
-    LINKE_NIENDORF.setVotingResult(VotingResult.builder()
-        .votesOnNomination(0)
-        .votesPerPosition(Map.of(
-            1, 3782,
-            2, 1584,
-            3, 1185
-        ))
-        .build());
-
-    FDP_NIENDORF.setVotingResult(VotingResult.builder()
-        .votesOnNomination(0)
-        .votesPerPosition(Map.of(
-            1, 2498,
-            2, 3200,
-            3, 992
-        ))
-        .build());
-
-    GRUENE_NIENDORF.setVotingResult(VotingResult.builder()
-        .votesOnNomination(0)
-        .votesPerPosition(Map.of(
-            1, 14838,
-            2, 12501
-        ))
-        .build());
-
-    AFD_NIENDORF.setVotingResult(VotingResult.builder()
-        .votesOnNomination(0)
-        .votesPerPosition(Map.of(
-            1, 6616
-        ))
-        .build());
-  }
-
-  private static Nomination buildNomination(String name) {
-    return new Nomination(name, false);
-  }
-}