private void testGetWithRegionName(ServerName sn, RegionInfo inputRI, byte[] regionName)
    throws IOException {
    RegionInfo ri = ProtobufUtil
      .toRegionInfo(FutureUtils.get(TEST_UTIL.getAsyncConnection().getRegionServerAdmin(sn)
        .getRegionInfo(ProtobufUtil.getGetRegionInfoRequest(regionName))).getRegionInfo());
    assertEquals(inputRI, ri);
  }
Do get of RegionInfo from Master using encoded region name.
hbase-server/src/test/java/org/apache/hadoop/hbase/client/TestAdmin2.java