public virtual float ParseFloat(System.String value_Renamed) { try { return(Single.Parse(value_Renamed)); } catch (System.OverflowException) { return(value_Renamed.StartsWith("-") ? float.PositiveInfinity : float.NegativeInfinity); } }
// extract expected doc score from its ID Field: "ID7" --> 7.0 protected internal virtual float ExpectedFieldScore(System.String docIDFieldVal) { return(Single.Parse(docIDFieldVal.Substring(2))); }
/// <summary> Assert that an explanation has the expected score, and optionally that its /// sub-details max/sum/factor match to that score. /// /// </summary> /// <param name="q">String representation of the query for assertion messages /// </param> /// <param name="doc">Document ID for assertion messages /// </param> /// <param name="score">Real score value of doc with query q /// </param> /// <param name="deep">indicates whether a deep comparison of sub-Explanation details should be executed /// </param> /// <param name="expl">The Explanation to match against score /// </param> public static void VerifyExplanation(System.String q, int doc, float score, bool deep, Explanation expl) { float value_Renamed = expl.Value; Assert.AreEqual(score, value_Renamed, EXPLAIN_SCORE_TOLERANCE_DELTA, q + ": score(doc=" + doc + ")=" + score + " != explanationScore=" + value_Renamed + " Explanation: " + expl); if (!deep) { return; } Explanation[] detail = expl.GetDetails(); if (detail != null) { if (detail.Length == 1) { // simple containment, no matter what the description says, // just verify contained expl has same score VerifyExplanation(q, doc, score, deep, detail[0]); } else { // explanation must either: // - end with one of: "product of:", "sum of:", "max of:", or // - have "max plus <x> times others" (where <x> is float). float x = 0; System.String descr = expl.Description.ToLower(); bool productOf = descr.EndsWith("product of:"); bool sumOf = descr.EndsWith("sum of:"); bool maxOf = descr.EndsWith("max of:"); bool maxTimesOthers = false; if (!(productOf || sumOf || maxOf)) { // maybe 'max plus x times others' int k1 = descr.IndexOf("max plus "); if (k1 >= 0) { k1 += "max plus ".Length; int k2 = descr.IndexOf(" ", k1); try { x = Single.Parse(descr.Substring(k1, (k2) - (k1)).Trim()); if (descr.Substring(k2).Trim().Equals("times others of:")) { maxTimesOthers = true; } } catch (System.FormatException) { } } } Assert.IsTrue(productOf || sumOf || maxOf || maxTimesOthers, q + ": multi valued explanation description=\"" + descr + "\" must be 'max of plus x times others' or end with 'product of'" + " or 'sum of:' or 'max of:' - " + expl); float sum = 0; float product = 1; float max = 0; for (int i = 0; i < detail.Length; i++) { float dval = detail[i].Value; VerifyExplanation(q, doc, dval, deep, detail[i]); product *= dval; sum += dval; max = System.Math.Max(max, dval); } float combined = 0; if (productOf) { combined = product; } else if (sumOf) { combined = sum; } else if (maxOf) { combined = max; } else if (maxTimesOthers) { combined = max + x * (sum - max); } else { Assert.IsTrue(false, "should never get here!"); } Assert.AreEqual(combined, value_Renamed, EXPLAIN_SCORE_TOLERANCE_DELTA, q + ": actual subDetails combined==" + combined + " != value=" + value_Renamed + " Explanation: " + expl); } } }