public virtual void TestRangeScorer()
{
Expression expr = JavascriptCompiler.Compile("2*popularity");
SimpleBindings bindings = new SimpleBindings();
bindings.Add(new SortField("popularity", SortFieldType.INT64));
ValueSource vs = expr.GetValueSource(bindings);
Assert.AreEqual(1, reader.Leaves.Count);
AtomicReaderContext leaf = reader.Leaves[0];
FunctionValues values = vs.GetValues(new Dictionary <string, object>(), leaf);
// everything
ValueSourceScorer scorer = values.GetRangeScorer(leaf.Reader, "4"
, "40", true, true);
Assert.AreEqual(-1, scorer.DocID);
Assert.AreEqual(0, scorer.NextDoc());
Assert.AreEqual(1, scorer.NextDoc());
Assert.AreEqual(2, scorer.NextDoc());
Assert.AreEqual(DocIdSetIterator.NO_MORE_DOCS, scorer.NextDoc());
// just the first doc
scorer = values.GetRangeScorer(leaf.Reader, "4", "40", false, false);
Assert.AreEqual(-1, scorer.DocID);
Assert.AreEqual(0, scorer.NextDoc());
Assert.AreEqual(DocIdSetIterator.NO_MORE_DOCS, scorer.NextDoc());
}