public void testMemberSeek() throws IOException {
   GZIPMembersInputStream gzin = new GZIPMembersInputStream(new ByteArrayInputStream(allfour_gz));
   gzin.setEofEachMember(true);
   gzin.compressedSeek(noise1k_gz.length + noise32k_gz.length);
   int count2 = IOUtils.copy(gzin, ByteStreams.nullOutputStream());
   assertEquals("wrong 1-byte member count", 1, count2);
   //        assertEquals("wrong Member number", 2, gzin.getMemberNumber());
   assertEquals(
       "wrong Member2 start",
       noise1k_gz.length + noise32k_gz.length,
       gzin.getCurrentMemberStart());
   assertEquals(
       "wrong Member2 end",
       noise1k_gz.length + noise32k_gz.length + a_gz.length,
       gzin.getCurrentMemberEnd());
   gzin.nextMember();
   int count3 = IOUtils.copy(gzin, ByteStreams.nullOutputStream());
   assertEquals("wrong 5-byte member count", 5, count3);
   //        assertEquals("wrong Member number", 3, gzin.getMemberNumber());
   assertEquals(
       "wrong Member3 start",
       noise1k_gz.length + noise32k_gz.length + a_gz.length,
       gzin.getCurrentMemberStart());
   assertEquals(
       "wrong Member3 end",
       noise1k_gz.length + noise32k_gz.length + a_gz.length + hello_gz.length,
       gzin.getCurrentMemberEnd());
   gzin.nextMember();
   int countEnd = IOUtils.copy(gzin, ByteStreams.nullOutputStream());
   assertEquals("wrong eof count", 0, countEnd);
 }