Tests.TicketTests.CanCreateUpdateOptionsAndDeleteTaggerTicketFieldAsync C# (CSharp) Метод

        public async Task CanCreateUpdateOptionsAndDeleteTaggerTicketFieldAsync()
        {
            string option1 = "test_value_a";
            string option1_Update = "test_value_a_newtag";
            string option2 = "test_value_b";
            string option3 = "test_value_c";

            var tField = new TicketField()
            {
                Type = TicketFieldTypes.Tagger,
                Title = "My Tagger 2",
                Description = "test description",
                TitleInPortal = "Test Tagger",
                CustomFieldOptions = new List<CustomFieldOptions>()
            };

            tField.CustomFieldOptions.Add(new CustomFieldOptions()
            {
                Name = "test entryA",
                Value = option1
            });

            tField.CustomFieldOptions.Add(new CustomFieldOptions()
            {
                Name = "test entryB",
                Value = option2
            });

            var res = await api.Tickets.CreateTicketFieldAsync(tField);
            Assert.That(res.TicketField, Is.Not.Null);
            Assert.That(res.TicketField.Id, Is.Not.Null);
            Assert.That(res.TicketField.CustomFieldOptions.Count, Is.EqualTo(2));
            Assert.That(res.TicketField.CustomFieldOptions[0].Value, Is.EqualTo(option1));
            Assert.That(res.TicketField.CustomFieldOptions[1].Value, Is.EqualTo(option2));

            long id = res.TicketField.Id.Value;

            var tFieldU = new TicketField()
            {
                Id = id,
                CustomFieldOptions = new List<CustomFieldOptions>()
            };

            //update CustomFieldOption A
            tFieldU.CustomFieldOptions.Add(new CustomFieldOptions()
            {
                Name = "test entryA newTitle",
                Value = option1_Update
            });
            //delete CustomFieldOption B
            //add CustomFieldOption C
            tFieldU.CustomFieldOptions.Add(new CustomFieldOptions()
            {
                Name = "test entryC",
                Value = option3
            });

            var resU = await api.Tickets.UpdateTicketFieldAsync(tFieldU);

            Assert.That(resU.TicketField.CustomFieldOptions.Count, Is.EqualTo(2));
            Assert.That(resU.TicketField.CustomFieldOptions[0].Value, Is.EqualTo(option1_Update));
            Assert.That(resU.TicketField.CustomFieldOptions[1].Value, Is.Not.EqualTo(option2));

            Assert.True(await api.Tickets.DeleteTicketFieldAsync(id));
        }
    }