private IEnumerable <DocumentId> ExecuteNot(BooleanQueryOperationNot op)
{
var docs = ExecuteQuery(op.Element).GetEnumerator();
var all = index.GetAll().GetEnumerator();
if (!all.MoveNext())
{
yield break;
}
while (docs.MoveNext())
{
while (all.Current.CompareTo(docs.Current) < 0)
{
yield return(all.Current);
if (!all.MoveNext())
{
yield break;
}
}
if (!all.MoveNext())
{
yield break;
}
}
do
{
yield return(all.Current);
}while (all.MoveNext());
}
protected void AssertIndices(ISearchableIndex <string> expected, ISearchableIndex <string> actual)
{
foreach (var word in IndexHelper.Results.Keys)
{
Assert.Equal(expected.Search(word), actual.Search(word));
Assert.Equal(expected.GetCount(word), actual.GetCount(word));
}
Assert.Equal(expected.GetAll(), actual.GetAll());
Assert.Equal(expected.GetCount(), actual.GetCount());
}