Test "Text reverse" added

src/main/java/src/TasksFrame.java

@@ -138,7 +138,7 @@ public class TasksFrame extends JFrame {
         });
     }
 
-    private String reverse(String text) {
+    public String reverse(String text) {
         StringBuilder reversed = new StringBuilder();
         for (int i = text.length() - 1; i >= 0; i--) {
             reversed.append(text.charAt(i));

src/test/java/src/TasksFrameTest.java

@@ -249,6 +249,17 @@ class TasksFrameTest {
         double c = tasksFrame.kreisUmfang(0);
         assertEquals(0, c);
     }
+
+    @Test
+    void test_reverse(){
+        TasksFrame tasksFrame = new TasksFrame();
+        String text1 = tasksFrame.reverse("dania");
+        assertEquals("ainad", text1);
+        String text2 = tasksFrame.reverse("commit");
+        assertEquals("timmoc", text2);
+        String text3 = tasksFrame.reverse("morgen");
+        assertEquals("negrom", text3);
+    }
 }