public void FieldObject_SetAsOptional_AreEqual()
        {
            FieldObject fieldObject1 = new FieldObject
            {
                Enabled     = "0",
                FieldNumber = "123",
                FieldValue  = "TEST",
                Lock        = "0",
                Required    = "1"
            };

            fieldObject1.SetAsOptional();
            Assert.AreEqual("1", fieldObject1.Enabled);
            Assert.AreEqual("0", fieldObject1.Required);
            Assert.IsTrue(fieldObject1.IsModified());
        }