public virtual void TestNormsClose()
{
Directory dir1 = new MockRAMDirectory();
TestIndexReaderReopen.CreateIndex(dir1, false);
SegmentReader reader1 = SegmentReader.GetOnlySegmentReader(dir1);
reader1.Norms("field1");
Norm r1norm = reader1.norms_ForNUnit["field1"];
SegmentReader.Ref r1BytesRef = r1norm.BytesRef();
SegmentReader reader2 = (SegmentReader) reader1.Clone();
Assert.AreEqual(2, r1norm.BytesRef().RefCount());
reader1.Close();
Assert.AreEqual(1, r1BytesRef.RefCount());
reader2.Norms("field1");
reader2.Close();
dir1.Close();
}