public virtual void TestNullDocIdSet()
{
// Tests that if a Filter produces a null DocIdSet, which is given to
// IndexSearcher, everything works fine. this came up in LUCENE-1754.
Directory dir = NewDirectory();
RandomIndexWriter writer = new RandomIndexWriter(Random, dir);
Document doc = new Document();
doc.Add(NewStringField("c", "val", Field.Store.NO));
writer.AddDocument(doc);
IndexReader reader = writer.GetReader();
writer.Dispose();
// First verify the document is searchable.
IndexSearcher searcher = NewSearcher(reader);
Assert.AreEqual(1, searcher.Search(new MatchAllDocsQuery(), 10).TotalHits);
// Now search w/ a Filter which returns a null DocIdSet
Filter f = new FilterAnonymousClass(this);
Assert.AreEqual(0, searcher.Search(new MatchAllDocsQuery(), f, 10).TotalHits);
reader.Dispose();
dir.Dispose();
}
public DocIdSetAnonymousClass(FilterAnonymousClass outerInstance, IBits acceptDocs, FunctionValues values, int maxDoc, IBits fastMatchBits)
{
this.outerInstance = outerInstance;
this.acceptDocs = acceptDocs;
this.values = values;
this.maxDoc = maxDoc;
this.fastMatchBits = fastMatchBits;
}
public virtual void TestNullDocIdSet()
{
Directory dir = NewDirectory();
RandomIndexWriter writer = new RandomIndexWriter(Random, dir);
writer.Dispose();
IndexReader reader = SlowCompositeReaderWrapper.Wrap(DirectoryReader.Open(dir));
AtomicReaderContext context = (AtomicReaderContext)reader.Context;
Filter filter = new FilterAnonymousClass(this, context);
CachingWrapperFilter cacher = new CachingWrapperFilter(filter);
// the caching filter should return the empty set constant
//Assert.IsNull(cacher.GetDocIdSet(context, "second time", (context.AtomicReader).LiveDocs));
Assert.IsNull(cacher.GetDocIdSet(context, (context.AtomicReader).LiveDocs));
reader.Dispose();
dir.Dispose();
}
