public async Task PerformSearch_WhenFindCalculationsServiceReturnsNotFound_ThenNullReturned()
{
// Arrange
ICalculationsApiClient calcsClient = Substitute.For <ICalculationsApiClient>();
ILogger logger = Substitute.For <ILogger>();
IMapper mapper = MappingHelper.CreateFrontEndMapper();
ICalculationSearchService calculationSearchService = new CalculationSearchService(calcsClient, mapper, logger);
ApiResponse <SearchResults <CalculationSearchResult> > expectedServiceResult = null;
calcsClient
.FindCalculations(Arg.Any <SearchFilterRequest>())
.Returns(expectedServiceResult);
SearchRequestViewModel request = new SearchRequestViewModel();
// Act
CalculationSearchResultViewModel result = await calculationSearchService.PerformSearch(request);
// Assert
result.Should().BeNull();
}
