public async Task ShouldGetContractorDetailsInquirySuccess() { _moqSubscriptionProxy.Setup(s => s.GetCRsSubscriptionStatuses(It.IsAny <List <string> >())) .Returns(() => { return(Task.FromResult <List <SubscriptionModel> >(new List <SubscriptionModel> ())); }); var result = await _sut.GetCRsSubscriptionStatuses(new List <string>() { "cr" }); Assert.NotNull(result); }