public List <Test> GetAllTests() { List <Test> tests = new List <Test>(); try { tests = _test_object.GetAllTests(); if (tests != null) { return(tests); } else { throw new OASCustomException("Null data encountered."); } } catch (SqlException sqlex) { log.Error(sqlex); } catch (OASCustomException customex) { log.Error(customex.Message); } catch (Exception ex) { log.Error(ex.Message); } return(tests); }