passed first 3 test classes

src/main/java/com/zipcodewilmington/arrayutility/ArrayUtility.java

         return counter;
     }
 
-    public  merge(E[] arrayToMerge) {
+    public void merge(E[] arrayToMerge) {
+        for(E el : arrayToMerge){
+            list.add(el);
+        }
+    }
+
+    public E getMostCommonFromMerge(E[] arrayToMerge) {
+       merge(arrayToMerge);
+       int frequencey = Integer.MIN_VALUE;
+        E mostCommonElement =null;
+        for (E el : list){
+            if (getNumberOfOccurrences(el)>frequencey){
+                frequencey = getNumberOfOccurrences(el);
+                mostCommonElement = el;}
+        }
+        return mostCommonElement;
+    }
 
+    public int countDuplicatesInMerge(E[] arrayToMerge, E valueToEvaluate) {
+        merge(arrayToMerge);
+       return getNumberOfOccurrences(valueToEvaluate);
     }
 }

src/test/java/com/zipcodewilmington/arrayutility/ArrayUtilityTestSuite.java

 @RunWith(Suite.class)
 
 @Suite.SuiteClasses({
-//        CountDuplicatesInMergeTest.class,
-//        GetMostCommonFromMergeTest.class,
+        CountDuplicatesInMergeTest.class,
+        GetMostCommonFromMergeTest.class,
         GetNumberOfOccurrencesTest.class,
 //        RemoveValueTest.class
 })

src/test/java/com/zipcodewilmington/arrayutility/CountDuplicatesInMergeTest.java

  * Created by leon on 3/1/18.
  * The purpose of this class is to thoroughly test the method countDuplicatesInMerge()
  */
-//public class CountDuplicatesInMergeTest {
-//    @Test
-//    public void integerTest() {
-//        // Given
-//        Integer valueToEvaluate = 7;
-//        Integer expected = 5;
-//        Integer[] inputArray = {1, 2, valueToEvaluate, 8, 4, 5, valueToEvaluate, 0, 9, 8, valueToEvaluate};
-//        Integer[] arrayToMerge = {1, 2, valueToEvaluate, 8, 4, 5, valueToEvaluate, 0, 9, 8};
-//        ArrayUtility<Integer> arrayUtility = new ArrayUtility<Integer>(inputArray);
-//
-//        // When
-//        Integer actual = arrayUtility.countDuplicatesInMerge(arrayToMerge, valueToEvaluate);
-//
-//        // Then
-//        Assert.assertEquals(expected, actual);
-//    }
-//
-//    @Test
-//    public void longTest() {
-//        // Given
-//        Long valueToEvaluate = 7L;
-//        Integer expected = 6;
-//        Long[] inputArray = {1L, 2L, valueToEvaluate, 8L, 4L, 5L, valueToEvaluate, 0L, 9L, 8L, valueToEvaluate};
-//        Long[] arrayToMerge = {1L, 2L, valueToEvaluate, 8L, 4L, 5L, valueToEvaluate, 0L, 9L, 8L, valueToEvaluate};
-//        ArrayUtility<Long> arrayUtility = new ArrayUtility<Long>(inputArray);
-//
-//        // When
-//        Integer actual = arrayUtility.countDuplicatesInMerge(arrayToMerge, valueToEvaluate);
-//
-//        // Then
-//        Assert.assertEquals(expected, actual);
-//    }
-//
-//    @Test
-//    public void stringTest() {
-//        // Given
-//        String valueToEvaluate = "a";
-//        Integer expected = 7;
-//        String[] inputArray = {"1", "2", valueToEvaluate, "8", "4", "5", valueToEvaluate, "0", "9", "8", valueToEvaluate};
-//        String[] arrayToMerge = {"1", "2", valueToEvaluate, "8", "4", "5", valueToEvaluate, "0", "9", "8", valueToEvaluate, valueToEvaluate};
-//
-//        ArrayUtility<String> arrayUtility = new ArrayUtility<String>(inputArray);
-//
-//        // When
-//        Integer actual = arrayUtility.countDuplicatesInMerge(arrayToMerge, valueToEvaluate);
-//
-//        // Then
-//        Assert.assertEquals(expected, actual);
-//    }
-//
-//    @Test
-//    public void objectTest() {
-//        // Given
-//        Object valueToEvaluate = "a";
-//        Integer expected = 8;
-//        Object[] inputArray = {"1", "2", valueToEvaluate, "8", "4", "5", valueToEvaluate, "0", "9", "8", valueToEvaluate};
-//        Object[] arrayToMerge = {"1", "2", valueToEvaluate, "8", "4", "5", valueToEvaluate, "0", "9", "8", valueToEvaluate, valueToEvaluate, valueToEvaluate};
-//
-//        ArrayUtility<Object> arrayUtility = new ArrayUtility<Object>(inputArray);
-//
-//        // When
-//        Integer actual = arrayUtility.countDuplicatesInMerge(arrayToMerge, valueToEvaluate);
-//
-//        // Then
-//        Assert.assertEquals(expected, actual);
-//    }
-//}
+public class CountDuplicatesInMergeTest {
+    @Test
+    public void integerTest() {
+        // Given
+        Integer valueToEvaluate = 7;
+        Integer expected = 5;
+        Integer[] inputArray = {1, 2, valueToEvaluate, 8, 4, 5, valueToEvaluate, 0, 9, 8, valueToEvaluate};
+        Integer[] arrayToMerge = {1, 2, valueToEvaluate, 8, 4, 5, valueToEvaluate, 0, 9, 8};
+        ArrayUtility<Integer> arrayUtility = new ArrayUtility<Integer>(inputArray);
+
+        // When
+        Integer actual = arrayUtility.countDuplicatesInMerge(arrayToMerge, valueToEvaluate);
+
+        // Then
+        Assert.assertEquals(expected, actual);
+    }
+
+    @Test
+    public void longTest() {
+        // Given
+        Long valueToEvaluate = 7L;
+        Integer expected = 6;
+        Long[] inputArray = {1L, 2L, valueToEvaluate, 8L, 4L, 5L, valueToEvaluate, 0L, 9L, 8L, valueToEvaluate};
+        Long[] arrayToMerge = {1L, 2L, valueToEvaluate, 8L, 4L, 5L, valueToEvaluate, 0L, 9L, 8L, valueToEvaluate};
+        ArrayUtility<Long> arrayUtility = new ArrayUtility<Long>(inputArray);
+
+        // When
+        Integer actual = arrayUtility.countDuplicatesInMerge(arrayToMerge, valueToEvaluate);
+
+        // Then
+        Assert.assertEquals(expected, actual);
+    }
+
+    @Test
+    public void stringTest() {
+        // Given
+        String valueToEvaluate = "a";
+        Integer expected = 7;
+        String[] inputArray = {"1", "2", valueToEvaluate, "8", "4", "5", valueToEvaluate, "0", "9", "8", valueToEvaluate};
+        String[] arrayToMerge = {"1", "2", valueToEvaluate, "8", "4", "5", valueToEvaluate, "0", "9", "8", valueToEvaluate, valueToEvaluate};
+
+        ArrayUtility<String> arrayUtility = new ArrayUtility<String>(inputArray);
+
+        // When
+        Integer actual = arrayUtility.countDuplicatesInMerge(arrayToMerge, valueToEvaluate);
+
+        // Then
+        Assert.assertEquals(expected, actual);
+    }
+
+    @Test
+    public void objectTest() {
+        // Given
+        Object valueToEvaluate = "a";
+        Integer expected = 8;
+        Object[] inputArray = {"1", "2", valueToEvaluate, "8", "4", "5", valueToEvaluate, "0", "9", "8", valueToEvaluate};
+        Object[] arrayToMerge = {"1", "2", valueToEvaluate, "8", "4", "5", valueToEvaluate, "0", "9", "8", valueToEvaluate, valueToEvaluate, valueToEvaluate};
+
+        ArrayUtility<Object> arrayUtility = new ArrayUtility<Object>(inputArray);
+
+        // When
+        Integer actual = arrayUtility.countDuplicatesInMerge(arrayToMerge, valueToEvaluate);
+
+        // Then
+        Assert.assertEquals(expected, actual);
+    }
+}