EnumSpeed_07

        [Test]
        public void InvoicePaymentMethods_IsUndefined_Supports_All_Enum_Values() {
            var allInvoicePaymentMethodsValues = Enum.GetValues(typeof(InvoicePaymentMethods)).Cast<InvoicePaymentMethods>().ToList();
            foreach(var invoicePaymentMethodsValue in allInvoicePaymentMethodsValues) {
                if(invoicePaymentMethodsValue == InvoicePaymentMethods.Undefined) {
                    Assert.IsTrue(invoicePaymentMethodsValue.IsUndefined());
                    continue;
                }
                Assert.IsFalse(invoicePaymentMethodsValue.IsUndefined());
            }
        }