unittest for issue #237
unittest for issue #237

arcturusannamalai/open-tamil,arcturusannamalai/open-tamil,Ezhil-Language-Foundation/open-tamil,Ezhil-Language-Foundation/open-tamil,Ezhil-Language-Foundation/open-tamil,Ezhil-Language-Foundation/open-tamil,Ezhil-Language-Foundation/open-tamil,arcturusannamalai/open-tamil,arcturusannamalai/open-tamil,arcturusannamalai/open-tamil,Ezhil-Language-Foundation/open-tamil,arcturusannamalai/open-tamil,Ezhil-Language-Foundation/open-tamil,arcturusannamalai/open-tamil,Ezhil-Language-Foundation/open-tamil,Ezhil-Language-Foundation/open-tamil