public void TestMethod1()
{
int[] arr = new int[] { 23, 5, 6, 1, 2, 33, 99, 45, 7, 6, 34 };
MergeSort mergeSortClass = new MergeSort();
int[] actualArray = mergeSortClass.Divide(arr);
int[] expectedArray = new int[] { 1, 2, 5, 6, 6, 7, 23, 33, 34, 45, 99 };
var actualString = String.Join(" ", actualArray);
var exptedString = String.Join(" ", expectedArray);
Assert.AreEqual(actualString, exptedString);
}