@Test
public void testVarchar() throws HiveException {
GenericUDFOPNegative udf = new GenericUDFOPNegative();
HiveVarchar vc = new HiveVarchar("32300.004747", 12);
HiveVarcharWritable input = new HiveVarcharWritable(vc);
VarcharTypeInfo inputTypeInfo = TypeInfoFactory.getVarcharTypeInfo(12);
ObjectInspector[] inputOIs = {
PrimitiveObjectInspectorFactory.getPrimitiveWritableObjectInspector(inputTypeInfo),
};