implemented functionality to show existing Tournaments.

app/src/test/java/ch/zhaw/projekt2/turnierverwaltung/AppTest.java

@@ -1,14 +0,0 @@
-/*
- * This Java source file was generated by the Gradle 'init' task.
- */
-package ch.zhaw.projekt2.turnierverwaltung;
-
-import org.junit.jupiter.api.Test;
-import static org.junit.jupiter.api.Assertions.*;
-
-class AppTest {
-    @Test void appHasAGreeting() {
-        App classUnderTest = new App();
-        assertNotNull(classUnderTest.getGreeting(), "app should have a greeting");
-    }
-}

app/src/test/java/ch/zhaw/projekt2/turnierverwaltung/FileIOTest.java

@@ -60,7 +60,7 @@ class FileIOTest {
 
         @Test
         void getList() {
-            List<File> tournaments = io.getList();
+            List<FileIO.TournamentFile> tournaments = io.getList();
             assertEquals("empty.txt", tournaments.get(0).getName());
             assertEquals("test1.txt", tournaments.get(1).getName());
         }