public void ValidateMissingLastName()
        {
            //Arrange
            var customer = new Customer();
            customer.Email = "*****@*****.**";
            //Act
            var expected = false;
            var actual = customer.Validate();
            //Assert
            Assert.AreEqual(expected,actual);

        }
        public void ValidateValid()
        {
            // Arrange
            var customer = new Customer();

            customer.LastName = "strong";
            customer.Email = "*****@*****.**";

            var expected = true;
            // Act
            var actual = customer.Validate();

            // Assert
            Assert.AreEqual(expected,actual);
        }