player_management: added method savePlayers

src/main/java/de/tims/player_management/PlayerManager.java

@@ -71,4 +71,9 @@ public class PlayerManager {
 		}
 	}
 
+	public void savePlayers(String fileName) {
+		// TODO Auto-generated method stub
+		
+	}
+
 }

src/test/java/de/tims/player_management/PlayerManagerTest.java

@@ -58,4 +58,18 @@ class PlayerManagerTest {
 						List.of(new Player("Tobias", 50), new Player("Lorenz", 40), new Player("Steffen", 60))));
 	}
 	
+	@ParameterizedTest
+	@MethodSource("testCasesForSavePlayers")
+	void savePlayersTest(String testName, String fileName, List<Player> expectedResult) {
+		manager.setPlayers(expectedResult);
+		manager.savePlayers(fileName);
+		manager.loadPlayers(fileName);
+		List<Player> calculatedResult = manager.getPlayers();
+		assertThat(calculatedResult).describedAs(testName).isEqualTo(expectedResult);
+	}
+	
+	private static Stream<Arguments> testCasesForSavePlayers() {
+		return Stream.of(Arguments.of("EmptyListIsWrittenAsEmptyFile", "src/test/java/resources/player_testdata2.csv", List.of()));
+	}
+
 }