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arraz/src/main/java/Arraz.java

     public int[] insertArrayAt(int[] array, int index, int value){
         int[] newArray = new int[array.length + 1];
         int counter = 0;
-        for (int i = 0; i < array.length-1; i++) {
-            if (i == index){
-                newArray[index] = value;
+        for (int i = 0; i < array.length; i++) {
+            if (counter == index){
+                newArray[counter] = value;
                 counter++;
-            }else {
+                i--;
+            }else{
                 newArray[counter] = array[i];
                 counter++;
             }
         }
         return false;
     }
+
+    public Integer[] min2Array(Integer[] array){
+        Set<Integer> minSet = new TreeSet<>(Arrays.asList(array));
+        return Arrays.copyOfRange(minSet.toArray(new Integer[0]), 0, 2);
+    }
+
+    public int[] reverseCopy(int[] array){
+       return reverseArray(array);
+    }
+
+    public int[] removeLastItemCopy(int[] array){
+        return removeElementFromArray(array, array[array.length-1]);
+    }
+
+    public int[] removeFirstItemCopy(int[] array){
+        return removeElementFromArray(array, array[0]);
+    }
+
+    public int[] insertStartCopy(int[] array, int value){
+        return insertArrayAt(array, 0, value);
+    }
+
+    public Integer[] insertEndCopy(Integer[] array, int value){
+        List<Integer> list = new ArrayList<>(Arrays.asList(array));
+        list.add(value);
+        return list.toArray(new Integer[0]);
+    }
 }

arraz/src/test/java/ArrazTest.java

 import org.junit.Assert;
 import org.junit.Before;
 import org.junit.Test;
-
 import java.util.ArrayList;
 import java.util.Arrays;
 import java.util.List;
 
     @Test
     public void testInsertArrayAt1(){
-        int[] expected = new int[]{5, 10, 17, 3, 29, 100};
-        int[] actual = testArraz.insertArrayAt(arr1, 2, 17);
+        int[] expected = new int[]{5, 10, 3, 17, 29, 100};
+        int[] actual = testArraz.insertArrayAt(arr1, 3, 17);
+        System.out.println(Arrays.toString(actual));
 
         Assert.assertArrayEquals(expected, actual);
     }
 
     @Test
     public void testInsertArrayAt2(){
-        int[] expected =  new int[]{2, 7, 432, 89, 6};
-        int[] actual = testArraz.insertArrayAt(arr2, 4, 6);
+        int[] expected =  new int[]{2, 6, 7, 432, 89};
+        int[] actual = testArraz.insertArrayAt(arr2, 1, 6);
+        System.out.println(Arrays.toString(actual));
 
         Assert.assertArrayEquals(expected, actual);
     }
         Assert.assertFalse(testArraz.theTotalOfTenIs30(array));
     }
 
+    @Test
+    public void testMin2Array1(){
+        Integer[] expected = new Integer[]{3, 5};
+        Integer[] actual = testArraz.min2Array(new Integer[]{100, 54, 10, 78, 10, 5, 3});
+
+        Assert.assertArrayEquals(expected, actual);
+    }
+
+    @Test
+    public void testMin2Array(){
+        Integer[] expected = new Integer[]{1, 10};
+        Integer[] actual = testArraz.min2Array(new Integer[]{1,1,1,1,10});
+
+        Assert.assertArrayEquals(expected, actual);
+    }
+
+    @Test
+    public void testReverseCopy1(){
+        int[] expected = new int[]{100, 29, 3, 10, 5};
+        int[] actual = testArraz.reverseCopy(arr1);
+
+        Assert.assertArrayEquals(expected,actual);
+    }
+
+    @Test
+    public void testReverseCopy2(){
+        int[] expected = new int[]{89, 432, 7, 2};
+        int[] actual = testArraz.reverseCopy(arr2);
+
+        Assert.assertArrayEquals(expected, actual);
+    }
+
+    @Test
+    public void testRemoveLastItemCopy1(){
+        int[] expected = new int[]{5, 10, 3, 29};
+        int[] actual = testArraz.removeLastItemCopy(arr1);
+
+        Assert.assertArrayEquals(expected, actual);
+    }
+
+    @Test
+    public void testRemoveLastItemCopy2(){
+        int[] expected =  new int[]{2, 7, 432};
+        int[] actual = testArraz.removeLastItemCopy(arr2);
+
+        Assert.assertArrayEquals(expected, actual);
+    }
+
+    @Test
+    public void testRemoveFirstItemCopy1(){
+        int[] expected = new int[]{7, 432, 89};
+        int[] actual = testArraz.removeFirstItemCopy(arr2);
+
+        Assert.assertArrayEquals(expected, actual);
+    }
+
+    @Test
+    public void testRemoveFirstItemCopy2(){
+        int[] expected = new int[]{10, 3, 29, 100};
+        int[] actual = testArraz.removeFirstItemCopy(arr1);
+
+        Assert.assertArrayEquals(expected, actual);
+    }
+
+    @Test
+    public void testInsertStartCopy1(){
+        int[] expected = new int[]{4, 5, 10, 3, 29, 100};
+        int[] actual = testArraz.insertStartCopy(arr1, 4);
+
+        Assert.assertArrayEquals(expected, actual);
+    }
+
+    @Test
+    public void testInsertStartCopy2(){
+        int[] expected = new int[]{56, 2, 7, 432, 89};
+        int[] actual = testArraz.insertStartCopy(arr2, 56);
+
+        Assert.assertArrayEquals(expected, actual);
+    }
+
+    @Test
+    public void testInsertEndCopy1(){
+        Integer[] expected = new Integer[]{2, 7, 432, 89, 9};
+        Integer[] actual = testArraz.insertEndCopy(new Integer[]{2, 7, 432, 89}, 9);
+
+        Assert.assertArrayEquals(expected, actual);
+    }
+
+    @Test
+    public void testInsertEndCopy2(){
+        Integer[] expected = new Integer[]{5, 10, 3, 29, 100, 90};
+        Integer[] actual = testArraz.insertEndCopy(new Integer[]{5, 10, 3, 29, 100}, 90);
+        System.out.println(Arrays.toString(actual));
+
+        Assert.assertArrayEquals(expected, actual);
+    }
 }