public virtual void TestTermDocsEnum()
{
Directory dir = NewDirectory();
IndexWriter w = new IndexWriter(dir, NewIndexWriterConfig(TEST_VERSION_CURRENT, new MockAnalyzer(Random)));
Documents.Document d = new Documents.Document();
d.Add(NewStringField("f", "j", Field.Store.NO));
w.AddDocument(d);
w.Commit();
w.AddDocument(d);
IndexReader r = w.GetReader();
w.Dispose();
DocsEnum de = MultiFields.GetTermDocsEnum(r, null, "f", new BytesRef("j"));
Assert.AreEqual(0, de.NextDoc());
Assert.AreEqual(1, de.NextDoc());
Assert.AreEqual(DocIdSetIterator.NO_MORE_DOCS, de.NextDoc());
r.Dispose();
dir.Dispose();
}
public virtual void DoTestNumbers(bool withPayloads)
{
Directory dir = NewDirectory();
Analyzer analyzer = withPayloads ? (Analyzer) new MockPayloadAnalyzer() : new MockAnalyzer(Random);
iwc = NewIndexWriterConfig(TEST_VERSION_CURRENT, analyzer);
iwc.SetMergePolicy(NewLogMergePolicy()); // will rely on docids a bit for skipping
RandomIndexWriter w = new RandomIndexWriter(Random, dir, iwc);
FieldType ft = new FieldType(TextField.TYPE_STORED);
ft.IndexOptions = IndexOptions.DOCS_AND_FREQS_AND_POSITIONS_AND_OFFSETS;
if (Random.NextBoolean())
{
ft.StoreTermVectors = true;
ft.StoreTermVectorOffsets = Random.NextBoolean();
ft.StoreTermVectorPositions = Random.NextBoolean();
}
int numDocs = AtLeast(500);
for (int i = 0; i < numDocs; i++)
{
Document doc = new Document();
doc.Add(new Field("numbers", English.Int32ToEnglish(i), ft));
doc.Add(new Field("oddeven", (i % 2) == 0 ? "even" : "odd", ft));
doc.Add(new StringField("id", "" + i, Field.Store.NO));
w.AddDocument(doc);
}
IndexReader reader = w.GetReader();
w.Dispose();
string[] terms = new string[] { "one", "two", "three", "four", "five", "six", "seven", "eight", "nine", "ten", "hundred" };
foreach (string term in terms)
{
DocsAndPositionsEnum dp = MultiFields.GetTermPositionsEnum(reader, null, "numbers", new BytesRef(term));
int doc;
while ((doc = dp.NextDoc()) != DocIdSetIterator.NO_MORE_DOCS)
{
string storedNumbers = reader.Document(doc).Get("numbers");
int freq = dp.Freq;
for (int i = 0; i < freq; i++)
{
dp.NextPosition();
int start = dp.StartOffset;
if (Debugging.AssertsEnabled)
{
Debugging.Assert(start >= 0);
}
int end = dp.EndOffset;
if (Debugging.AssertsEnabled)
{
Debugging.Assert(end >= 0 && end >= start);
}
// check that the offsets correspond to the term in the src text
Assert.IsTrue(storedNumbers.Substring(start, end - start).Equals(term, StringComparison.Ordinal));
if (withPayloads)
{
// check that we have a payload and it starts with "pos"
Assert.IsNotNull(dp.GetPayload());
BytesRef payload = dp.GetPayload();
Assert.IsTrue(payload.Utf8ToString().StartsWith("pos:", StringComparison.Ordinal));
} // note: withPayloads=false doesnt necessarily mean we dont have them from MockAnalyzer!
}
}
}
// check we can skip correctly
int numSkippingTests = AtLeast(50);
for (int j = 0; j < numSkippingTests; j++)
{
int num = TestUtil.NextInt32(Random, 100, Math.Min(numDocs - 1, 999));
DocsAndPositionsEnum dp = MultiFields.GetTermPositionsEnum(reader, null, "numbers", new BytesRef("hundred"));
int doc = dp.Advance(num);
Assert.AreEqual(num, doc);
int freq = dp.Freq;
for (int i = 0; i < freq; i++)
{
string storedNumbers = reader.Document(doc).Get("numbers");
dp.NextPosition();
int start = dp.StartOffset;
if (Debugging.AssertsEnabled)
{
Debugging.Assert(start >= 0);
}
int end = dp.EndOffset;
if (Debugging.AssertsEnabled)
{
Debugging.Assert(end >= 0 && end >= start);
}
// check that the offsets correspond to the term in the src text
Assert.IsTrue(storedNumbers.Substring(start, end - start).Equals("hundred", StringComparison.Ordinal));
if (withPayloads)
{
// check that we have a payload and it starts with "pos"
Assert.IsNotNull(dp.GetPayload());
BytesRef payload = dp.GetPayload();
Assert.IsTrue(payload.Utf8ToString().StartsWith("pos:", StringComparison.Ordinal));
} // note: withPayloads=false doesnt necessarily mean we dont have them from MockAnalyzer!
}
}
// check that other fields (without offsets) work correctly
for (int i = 0; i < numDocs; i++)
{
DocsEnum dp = MultiFields.GetTermDocsEnum(reader, null, "id", new BytesRef("" + i), 0);
Assert.AreEqual(i, dp.NextDoc());
Assert.AreEqual(DocIdSetIterator.NO_MORE_DOCS, dp.NextDoc());
}
reader.Dispose();
dir.Dispose();
}
