public async void PostAsync_MockSearchEndpoint_ReturnsSearchResultObject()
{
string sampleJson = File.ReadAllText("Data/BigMacSearch.json");
var mockClient = new HttpClient(Util.MockHttpMessageHandlerFactory("https://api.nal.usda.gov/fdc/v1/search?api_key=DEMO_KEY", sampleJson));
IRequester webRequester = new WebRequester(mockClient);
var returnedObject = await webRequester.PostAsync <SearchResult>("https://api.nal.usda.gov/fdc/v1/search?api_key=DEMO_KEY", "{\"generalSearchInput\": \"big mac\"}");
string searchInput = returnedObject.FoodSearchCriteria.GeneralSearchInput;
Assert.Equal("big mac", searchInput);
}