public void GenerateNumberArray_GeneratesNumberArray_NumberArrayCreated()
        {
            // Arrange
              int topNumber = 5;
              int[] testArray = new int[5];
              testArray[0] = 1;
              testArray[1] = 2;
              testArray[2] = 3;
              testArray[3] = 4;
              testArray[4] = 5;

              // Act
              PingPongGenerator newGenerator = new PingPongGenerator(topNumber);
              int[] newArray = newGenerator.CreateNumberArray(topNumber);

              // Assert
              Assert.Equal(testArray, newArray);
        }