writeTestFile("# This is a comment\n\na,b => c\n\n# Another comment\nd,e => f\n");

        PagingList<CharMappingItem> result = charMappingFile.selectList(0, 10);
        assertEquals(2, result.size());
    }

    // Test reload with invalid format
    public void test_reload_invalidFormat() throws Exception {
        writeTestFile("a,b => c\ninvalid_line\nd,e => f\n");

        // Should skip invalid line

p,?oitatsksid-ygolonys,pv&-n&i,yd,?nyd,?refeilgitsnüg,?o&c,rp-ytinummoc,?p&h21,iog:ol,,ohsdaerpsym,?r&e&ntrapdeeps.remotsuc,su&-lautriv,lautriv,?t&adpusnd,tub-ni,uor-ym,?vres&-e&bucl,mohym,?bew-emoh:.nyd,,luhcs,??ogiv-&niem,ym,??s&d-&onys,ygolonys,?nd&-&dd,nufiat,sehcsimanyd,tenretni,yard,?isoc.nyd,ps,yard,?oper-&nvs,tig,?sndd:.&nyd,sndnyd,?,?vresi-&niem,tset,?xi2,y&awetag-&llawerif,ym,?m,srab,tic-amil,?zten&mitbel,sadtretteuf,??art?i&sdoow?ug??on--nx??e!.&bil?dem?eif?gro?irp?kiir?moc?pia?ude?vo...

   *      77777$D======N77777777777N777N?         N777777
   *     I77777$$$N7===M$$77777777$77777777$MMZ77777777N
   *      $$$$$$$$$$$NIZN$$$$$$$$$M$$7777777777777777ON
   *       M$$$$$$$$M    M$$$$$$$$N=N$$$$7777777$$$ND
   *      O77Z$$$$$$$     M$$$$$$$$MNI==$DNNNNM=~N
   *   7 :N MNN$$$$M$      $$$777$8      8D8I
   *     NMM.:7O           777777778
   *                       7777777MN
   *                       M NO .7:

cc.ia.us
cc.id.us
cc.il.us
cc.in.us
cc.ks.us
cc.ky.us
cc.la.us
cc.ma.us
cc.md.us
cc.me.us
cc.mi.us
cc.mn.us
cc.mo.us
cc.ms.us
cc.mt.us
cc.nc.us
cc.nd.us
cc.ne.us
cc.nh.us
cc.nj.us
cc.nm.us
cc.nv.us
cc.ny.us
cc.oh.us
cc.ok.us
cc.or.us
cc.pa.us
cc.pr.us
cc.ri.us
cc.sc.us
cc.sd.us
cc.tn.us
cc.tx.us