All methods working

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arraz/src/main/java/Arraz.java

 import java.util.ArrayList;
+import java.util.Arrays;
+import java.util.Iterator;
 import java.util.List;
 
 public class Arraz {
         return output;
     }
 
-    public int[] copyArrayByInterator(){
-        return null;
+    public Integer[] copyArrayByInterator(Integer[] arr){
+        Integer[] output = new Integer[arr.length];
+        int count = 0;
+        Iterator iterator = Arrays.asList(arr).iterator();
+        while(iterator.hasNext()){
+            output[count] = Integer.parseInt(iterator.next().toString());
+            count++;
+        }
+        return output;
     }
 
     public int[] removeElementFromArray(int[] arr, int n) {

arraz/src/test/java/ArrazTest.java

 
         int[] actual = arraz.copyArrayByLoop(arr);
 
-        Assert.assertEquals(arr, actual);
+        Assert.assertArrayEquals(arr, actual);
         Assert.assertNotNull(actual);
     }
 
     @Test
     public void testCopyArrayByInterator1(){
+        Integer[] arr = new Integer[] {1,2,3,4,5,6,7,8};
+
+        Integer[] actual = arraz.copyArrayByInterator(arr);
 
+        Assert.assertArrayEquals(arr, actual);
+        Assert.assertNotNull(actual);
     }
 
     @Test
     public void testCopyArrayByInterator2(){
+        Integer[] arr = new Integer[] {1,2,3,4,5,6,7,8};
 
+        Integer[] actual = arraz.copyArrayByInterator(arr);
+
+        Assert.assertArrayEquals(arr, actual);
+        Assert.assertNotNull(actual);
     }
 
     @Test