public void IndexerWithSchemaIndex( )
{
// test should validate that both the PKey and an Index key exist in the schema
// Fields[3] is the 'Surname' property and we will add an index on the field
schema.Configure(f => f[3].Attributes |= Attribs.Index);
var indexer = GetIndexer(schema);
var pkey = indexer.PKey;
// test using ordinal number
var srchKey = new DataValue(DataType.String, Attribs.Index).Value(3);
Assert.IsTrue(indexer.TryGetIndex(srchKey, out IIndex idxSurname));
Assert.AreEqual(3, idxSurname.Ordinal);
// test using index name
srchKey = srchKey.Value("Surname");
Assert.IsTrue(indexer.TryGetIndex(srchKey, out idxSurname));
Assert.AreEqual("Surname", idxSurname.Name);
}