/// <summary>
/// Helper function to create an SortedSet fulfilling the given specific parameters. The function will
/// create an SortedSet using the Comparer constructor and then add values
/// to it until it is full. It will begin by adding the desired number of matching,
/// followed by random (deterministic) elements until the desired count is reached.
/// </summary>
protected IEnumerable <T> CreateSortedSet(IEnumerable <T> enumerableToMatchTo, int count, int numberOfMatchingElements)
{
JCG.SortedSet <T> set = new JCG.SortedSet <T>(GetIComparer());
int seed = 528;
JCG.List <T> match = null;
// Add Matching elements
if (enumerableToMatchTo != null)
{
match = enumerableToMatchTo.ToList();
for (int i = 0; i < numberOfMatchingElements; i++)
{
set.Add(match[i]);
}
}
// Add elements to reach the desired count
while (set.Count < count)
{
T toAdd = CreateT(seed++);
while (set.Contains(toAdd) || (match != null && match.Contains(toAdd, GetIEqualityComparer()))) // Don't want any unexpectedly duplicate values
{
toAdd = CreateT(seed++);
}
set.Add(toAdd);
}
// Validate that the Enumerable fits the guidelines as expected
Debug.Assert(set.Count == count);
if (match != null)
{
int actualMatchingCount = 0;
foreach (T lookingFor in match)
{
actualMatchingCount += set.Contains(lookingFor) ? 1 : 0;
}
Assert.Equal(numberOfMatchingElements, actualMatchingCount);
}
return(set);
}
/// <summary>
/// Tests that all documents up to maxDoc which are *not* in the
/// expected result set, have an explanation which indicates that
/// the document does not match
/// </summary>
public static void CheckNoMatchExplanations(Query q, string defaultFieldName, IndexSearcher searcher, int[] results)
{
string d = q.ToString(defaultFieldName);
JCG.SortedSet <int?> ignore = new JCG.SortedSet <int?>();
for (int i = 0; i < results.Length; i++)
{
ignore.Add(Convert.ToInt32(results[i], CultureInfo.InvariantCulture));
}
int maxDoc = searcher.IndexReader.MaxDoc;
for (int doc = 0; doc < maxDoc; doc++)
{
if (ignore.Contains(Convert.ToInt32(doc, CultureInfo.InvariantCulture)))
{
continue;
}
Explanation exp = searcher.Explain(q, doc);
Assert.IsNotNull(exp, "Explanation of [[" + d + "]] for #" + doc + " is null");
Assert.IsFalse(exp.IsMatch, "Explanation of [[" + d + "]] for #" + doc + " doesn't indicate non-match: " + exp.ToString());
}
}