private void DoTestSeekDoesNotExist(Random r, int numField, IList <Term> fieldTerms, Term[] fieldTermsArray, IndexReader reader)
{
IDictionary <string, TermsEnum> tes = new Dictionary <string, TermsEnum>();
if (VERBOSE)
{
Console.WriteLine("TEST: top random seeks");
}
{
int num = AtLeast(100);
for (int iter = 0; iter < num; iter++)
{
// seek to random spot
string field = StringHelper.Intern("f" + r.Next(numField));
Term tx = new Term(field, GetRandomString(r));
int spot = Array.BinarySearch(fieldTermsArray, tx);
if (spot < 0)
{
if (VERBOSE)
{
Console.WriteLine("TEST: non-exist seek to " + field + ":" + UnicodeUtil.ToHexString(tx.Text()));
}
// term does not exist:
TermsEnum te;
if (!tes.TryGetValue(field, out te))
{
te = MultiFields.GetTerms(reader, field).GetIterator(null);
tes[field] = te;
}
if (VERBOSE)
{
Console.WriteLine(" got enum");
}
spot = -spot - 1;
if (spot == fieldTerms.Count || !fieldTerms[spot].Field.Equals(field))
{
Assert.AreEqual(TermsEnum.SeekStatus.END, te.SeekCeil(tx.Bytes));
}
else
{
Assert.AreEqual(TermsEnum.SeekStatus.NOT_FOUND, te.SeekCeil(tx.Bytes));
if (VERBOSE)
{
Console.WriteLine(" got term=" + UnicodeUtil.ToHexString(te.Term.Utf8ToString()));
Console.WriteLine(" exp term=" + UnicodeUtil.ToHexString(fieldTerms[spot].Text()));
}
Assert.AreEqual(fieldTerms[spot].Bytes, te.Term);
// now .next() this many times:
int ct = TestUtil.NextInt(r, 5, 100);
for (int i = 0; i < ct; i++)
{
if (VERBOSE)
{
Console.WriteLine("TEST: now next()");
}
if (1 + spot + i >= fieldTerms.Count)
{
break;
}
Term term = fieldTerms[1 + spot + i];
if (!term.Field.Equals(field))
{
Assert.IsNull(te.Next());
break;
}
else
{
BytesRef t = te.Next();
if (VERBOSE)
{
Console.WriteLine(" got term=" + (t == null ? null : UnicodeUtil.ToHexString(t.Utf8ToString())));
Console.WriteLine(" exp=" + UnicodeUtil.ToHexString(term.Text().ToString()));
}
Assert.AreEqual(term.Bytes, t);
}
}
}
}
}
}
}
private static string ToHexString(Term t)
{
return(t.Field + ":" + UnicodeUtil.ToHexString(t.Text()));
}
// randomly seeks to term that we know exists, then next's
// from there
private void DoTestSeekExists(Random r, IList <Term> fieldTerms, IndexReader reader)
{
IDictionary <string, TermsEnum> tes = new Dictionary <string, TermsEnum>();
// Test random seek to existing term, then enum:
if (VERBOSE)
{
Console.WriteLine("\nTEST: top now seek");
}
int num = AtLeast(100);
for (int iter = 0; iter < num; iter++)
{
// pick random field+term
int spot = r.Next(fieldTerms.Count);
Term term = fieldTerms[spot];
string field = term.Field;
if (VERBOSE)
{
Console.WriteLine("TEST: exist seek field=" + field + " term=" + UnicodeUtil.ToHexString(term.Text()));
}
// seek to it
TermsEnum te;
if (!tes.TryGetValue(field, out te))
{
te = MultiFields.GetTerms(reader, field).GetIterator(null);
tes[field] = te;
}
if (VERBOSE)
{
Console.WriteLine(" done get enum");
}
// seek should find the term
Assert.AreEqual(TermsEnum.SeekStatus.FOUND, te.SeekCeil(term.Bytes));
// now .next() this many times:
int ct = TestUtil.NextInt(r, 5, 100);
for (int i = 0; i < ct; i++)
{
if (VERBOSE)
{
Console.WriteLine("TEST: now next()");
}
if (1 + spot + i >= fieldTerms.Count)
{
break;
}
term = fieldTerms[1 + spot + i];
if (!term.Field.Equals(field))
{
Assert.IsNull(te.Next());
break;
}
else
{
BytesRef t = te.Next();
if (VERBOSE)
{
Console.WriteLine(" got term=" + (t == null ? null : UnicodeUtil.ToHexString(t.Utf8ToString())));
Console.WriteLine(" exp=" + UnicodeUtil.ToHexString(term.Text().ToString()));
}
Assert.AreEqual(term.Bytes, t);
}
}
}
}