leaderboard: added method getTop10Players

src/main/java/de/tims/leaderboard/Leaderboard.java

@@ -0,0 +1,17 @@
+package de.tims.leaderboard;
+
+import java.util.List;
+
+import de.tims.player_management.Player;
+
+public class Leaderboard {
+
+	public Leaderboard(List<Player> allPlayers, String actualPlayer) {
+		// TODO Auto-generated constructor stub
+	}
+
+	public Player[] getTop10Players() {
+		return new Player[] {null, null, null, null, null, null, null, null, null, null};
+	}
+
+}

src/test/java/de/tims/leaderboard/LeaderboardTest.java

@@ -0,0 +1,31 @@
+package de.tims.leaderboard;
+
+import static org.assertj.core.api.Assertions.*;
+
+import java.util.List;
+import java.util.stream.Stream;
+
+import org.junit.jupiter.params.ParameterizedTest;
+import org.junit.jupiter.params.provider.Arguments;
+import org.junit.jupiter.params.provider.MethodSource;
+
+import de.tims.player_management.Player;
+
+class LeaderboardTest {
+
+	Leaderboard leaderboard;
+	
+	@ParameterizedTest
+	@MethodSource("testCasesForGetTop10Players")
+	void getTop10PlayersTest(String testName, List<Player> allPlayers, String actualPlayer, Player[] expectedResult) {
+		leaderboard = new Leaderboard(allPlayers, actualPlayer);
+		Player[] calculatedResutl = leaderboard.getTop10Players();
+		
+		assertThat(calculatedResutl).describedAs(testName).isEqualTo(expectedResult);
+	}
+	
+	private static Stream<Arguments> testCasesForGetTop10Players() {
+		return Stream.of(Arguments.of("EmptyListReturnsEmptyArray", List.of(), "TestPlayer", new Player[] {null, null, null, null, null, null, null, null, null, null}));
+	}
+
+}