public void GetJsonResultByWrongLocidTests()
        {
            // Arrange
            ShelfController controller = new ShelfController();
            // Act
            JsonResult result = controller.GenCopyNumber(-10) as JsonResult;

            // Assert
            Assert.AreEqual(result.Data.ToString(), "");
        }
        public void GetJsonResultByRightLocidTests()
        {
            // Arrange
            ShelfController controller = new ShelfController();
            // Act
            JsonResult result = controller.GenCopyNumber(49) as JsonResult;

            // Assert
            Assert.IsNotNull(result);
        }