public virtual void TestIllegalTypeChange()
{
Directory dir = NewDirectory();
IndexWriterConfig conf = NewIndexWriterConfig(TEST_VERSION_CURRENT, new MockAnalyzer(Random()));
IndexWriter writer = new IndexWriter(dir, conf);
Document doc = new Document();
doc.Add(new NumericDocValuesField("dv", 0L));
writer.AddDocument(doc);
doc = new Document();
doc.Add(new SortedDocValuesField("dv", new BytesRef("foo")));
try
{
writer.AddDocument(doc);
Assert.Fail("did not hit exception");
}
catch (System.ArgumentException iae)
{
// expected
}
writer.Dispose();
dir.Dispose();
}