private string GetStatus() { if (AvailabilityLogs is null) { return("ST_OK"); } if (AvailabilityLogs.Any() == false) { return("ST_OK"); } var newestRecord = AvailabilityLogs .OrderByDescending(e => e.CreatedAt) .First(); if (newestRecord.Body != ExpectedResponse || newestRecord.StatusCode != ExpectedStatusCode) { return("ST_ERROR"); } return("ST_OK"); }