question 2.5

src/main/java/fr/univamu/sorting/SortableIntList.java

@@ -12,15 +12,7 @@ public class SortableIntList {
     }
 
     public int compare(int index1, int index2) {
-     if (IntList.get(index1) > IntList.get(index2)){
-         return 1;
-     }
-     else if (IntList.get(index1) < IntList.get(index2)) {
-         return -1;
-     }
-     else {
-         return 0;
-     }
+        return IntList.get(index1).compareTo(IntList.get(index2));
 
     }
 
@@ -31,14 +23,14 @@ public class SortableIntList {
     public int get(int index) {
         return IntList.get(index);
     }
+
     public void sort() {
-     for (int i = 0; i < IntList.size() - 1; i++)
-     {
+        for (int i = 0; i < IntList.size() - 1; i++) {
             for (int j = i + 1; j < IntList.size(); j++) {
                 if (compare(IntList.get(j), IntList.get(i)) < 0) {
                     swap(IntList.get(i), IntList.get(j));
                 }
-
+            }
         }
     }
 }
\ No newline at end of file

src/test/java/fr/univamu/sorting/ListSortTest.java

@@ -2,7 +2,7 @@ package fr.univamu.sorting;
 
 import org.junit.jupiter.api.Test;
 
-import java.util.List;
+import java.util.*;
 import static fr.univamu.sorting.IntLists.*;
 import static org.assertj.core.api.Assertions.assertThat;
 
@@ -12,6 +12,25 @@ class ListSortTest {
 
   @Test
   void testSort() {
+    ArrayList<Integer> TestList = new ArrayList<Integer>(8);
+    TestList.add(1);
+    TestList.add(8);
+    TestList.add(9);
+    TestList.add(5);
+    TestList.add(4);
+    TestList.add(3);
+    TestList.add(2);
+    TestList.add(4);
+    ArrayList<Integer> TestList2 = new ArrayList<Integer>(8);
+    TestList.add(1);
+    TestList.add(2);
+    TestList.add(3);
+    TestList.add(4);
+    TestList.add(4);
+    TestList.add(5);
+    TestList.add(8);
+    TestList.add(9);
+    assertThat(TestList.sort()).isEqualTo(TestList2);
 
   }