@Test
public void convertRefAndNoCallPos() throws Exception {

    from.setRegionSize(2);
    to.setRegionSize(2);
    testRegionTypePos(5, 22, AlleleInfo.getReferenceAllele());
    testRegionTypePos(10, 20, AlleleInfo.getReferenceAllele());
    testRegionTypePos(12, 17, AlleleInfo.getReferenceAllele());
    testRegionTypePos(5, 22, AlleleInfo.getNoCallAllele());
    testRegionTypePos(10, 20, AlleleInfo.getNoCallAllele());
    testRegionTypePos(12, 17, AlleleInfo.getNoCallAllele());
    testRegionTypePos(10, 10, AlleleInfo.getReferenceAllele());
    testRegionTypePos(10, 10, AlleleInfo.getNoCallAllele());
}