test: cll iterator

assignment/src/test/java/appointmentplanner/customlist/api/CustomLinkedListTest.java

@@ -144,6 +144,22 @@ public class CustomLinkedListTest {
 
   }
 
+  @Test
+  void cllIterate_shouldPerformCorrectIteration() {
+
+    String[] data = new String[] { "Ahoj", "jak", "se", "mas", "?" };
+
+    CustomLinkedList<String> list = initPopulatedList(data);
+
+    int counter = data.length - 1;
+
+    for (String element : list) {
+      assertThat(element).isEqualTo(data[counter]);
+      counter--;
+    }
+
+  }
+
   private CustomLinkedList<String> initPopulatedList(String[] initData) {
     CustomLinkedList<String> list = new CustomLinkedListImpl<>();
     Stream.of(initData).forEach(list::add);