public void ProductName_TooShort()
{
//Arrange
var currentProduct = new Product();
currentProduct.ProductName = "aw";
string expected = null;
string expectedMessage = "Product Name must be at least 3 characters";
//Act
var actual = currentProduct.ProductName;
var actualMessage = currentProduct.ValidationMessage;
//Assert
Assert.AreEqual(expected, actual);
Assert.AreEqual(expectedMessage, actualMessage);
}