/**
 *******************************************************************************
 * Copyright (C) 2000-2013, International Business Machines Corporation and
 * others. All Rights Reserved.
 *******************************************************************************
 */
package com.ibm.icu.dev.test.translit;

import java.io.BufferedWriter;
import java.io.ByteArrayOutputStream;
import java.io.File;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.OutputStreamWriter;
import java.io.PrintWriter;
import java.io.UnsupportedEncodingException;
import java.util.MissingResourceException;

import com.ibm.icu.dev.test.TestFmwk;
import com.ibm.icu.impl.Utility;
import com.ibm.icu.lang.UCharacter;
import com.ibm.icu.lang.UProperty;
import com.ibm.icu.text.Normalizer;
import com.ibm.icu.text.Transliterator;
import com.ibm.icu.text.UTF16;
import com.ibm.icu.text.UnicodeSet;
import com.ibm.icu.text.UnicodeSetIterator;
import com.ibm.icu.util.LocaleData;
import com.ibm.icu.util.ULocale;

/**
 * @test
 * @summary Round trip test of Transliterator
 */
public class RoundTripTest extends TestFmwk {

    //TODO - revisit test cases referencing FIX_ME
    static final boolean FIX_ME = false;

    static final boolean EXTRA_TESTS = true;
    static final boolean PRINT_RULES = true;

    public static void main(String[] args) throws Exception {
        new RoundTripTest().run(args);
    }
    /*
    public void TestSingle() throws IOException, ParseException {
        Transliterator t = Transliterator.getInstance("Latin-Greek");
        String s = t.transliterate("\u0101\u0069");
    }
     */

    /*
    Note: Unicode 3.2 added new Hiragana/Katakana characters:

3095..3096    ; 3.2 #   [2] HIRAGANA LETTER SMALL KA..HIRAGANA LETTER SMALL KE
309F..30A0    ; 3.2 #   [2] HIRAGANA DIGRAPH YORI..KATAKANA-HIRAGANA DOUBLE HYPHEN
30FF          ; 3.2 #       KATAKANA DIGRAPH KOTO
31F0..31FF    ; 3.2 #  [16] KATAKANA LETTER SMALL KU..KATAKANA LETTER SMALL RO

    Unicode 5.2 added another Hiragana character:
1F200         ; 5.2 #       SQUARE HIRAGANA HOKA

    We will not add them to the rules until they are more supported (e.g. in fonts on Windows)
    A bug has been filed to remind us to do this: #1979.
     */

    static String KATAKANA = "[[[:katakana:][\u30A1-\u30FA\u30FC]]-[\u30FF\u31F0-\u31FF]-[:^age=5.2:]]";
    static String HIRAGANA = "[[[:hiragana:][\u3040-\u3094]]-[\u3095-\u3096\u309F-\u30A0\\U0001F200-\\U0001F2FF]-[:^age=5.2:]]";
    static String LENGTH = "[\u30FC]";
    static String HALFWIDTH_KATAKANA = "[\uFF65-\uFF9D]";
    static String KATAKANA_ITERATION = "[\u30FD\u30FE]";
    static String HIRAGANA_ITERATION = "[\u309D\u309E]";

    //------------------------------------------------------------------
    // AbbreviatedUnicodeSetIterator
    //------------------------------------------------------------------

    static class AbbreviatedUnicodeSetIterator extends UnicodeSetIterator {

        private boolean abbreviated;
        private int perRange;

        public AbbreviatedUnicodeSetIterator() {
            super();
            abbreviated = false;
        }

        public void reset(UnicodeSet newSet) {
            reset(newSet, false);
        }

        public void reset(UnicodeSet newSet, boolean abb) {
            reset(newSet, abb, 100);
        }

        public void reset(UnicodeSet newSet, boolean abb, int density) {
            super.reset(newSet);
            abbreviated = abb;
            perRange = newSet.getRangeCount();
            if (perRange != 0) {
                perRange = density / perRange;
            }
        }

        protected void loadRange(int myRange) {
            super.loadRange(myRange);
            if (abbreviated && (endElement > nextElement + perRange)) {
                endElement = nextElement + perRange;
            }
        }
    }

    //--------------------------------------------------------------------

    public void showElapsed(long start, String name) {
        double dur = (System.currentTimeMillis() - start) / 1000.0;
        logln(name + " took " + dur + " seconds");
    }

    public void TestKana() throws IOException {
        long start = System.currentTimeMillis();
        new Test("Katakana-Hiragana")
        .test(KATAKANA, "[" + HIRAGANA + LENGTH + "]", "[" + HALFWIDTH_KATAKANA + LENGTH + "]", this, new Legal());
        showElapsed(start, "TestKana");
    }

    public void TestHiragana() throws IOException {
        long start = System.currentTimeMillis();
        new Test("Latin-Hiragana")
        .test("[a-zA-Z]", HIRAGANA, HIRAGANA_ITERATION, this, new Legal());
        showElapsed(start, "TestHiragana");
    }

    public void TestKatakana() throws IOException {
        long start = System.currentTimeMillis();
        new Test("Latin-Katakana")
        .test("[a-zA-Z]", KATAKANA, "[" + KATAKANA_ITERATION + HALFWIDTH_KATAKANA + "]", this, new Legal());
        showElapsed(start, "TestKatakana");
    }

    public void TestJamo() throws IOException {
        long start = System.currentTimeMillis();
        new Test("Latin-Jamo")
        .test("[a-zA-Z]", "[\u1100-\u1112 \u1161-\u1175 \u11A8-\u11C2]", "", this, new LegalJamo());
        showElapsed(start, "TestJamo");
    }

    /*
        SBase = 0xAC00, LBase = 0x1100, VBase = 0x1161, TBase = 0x11A7,
        LCount = 19, VCount = 21, TCount = 28,
        NCount = VCount * TCount,   // 588
        SCount = LCount * NCount,   // 11172
        LLimit = LBase + LCount,    // 1113
        VLimit = VBase + VCount,    // 1176
        TLimit = TBase + TCount,    // 11C3
        SLimit = SBase + SCount;    // D7A4
     */

    public void TestHangul() throws IOException {
        long start = System.currentTimeMillis();
        Test t = new Test("Latin-Hangul", 5);
        boolean TEST_ALL = getBooleanProperty("HangulRoundTripAll", false); 
        if (TEST_ALL && getInclusion() == 10) {
            t.setPairLimit(Integer.MAX_VALUE); // only go to the limit if we have TEST_ALL and getInclusion
        }
        t.test("[a-zA-Z]", "[\uAC00-\uD7A4]", "", this, new Legal());
        showElapsed(start, "TestHangul");
    }

    /**
     * This is a shorter version of the test for doubles, that allows us to skip lots of cases, but
     * does check the ones that should cause problems (if any do).
     */
    public void TestHangul2() {
        Transliterator lh = Transliterator.getInstance("Latin-Hangul");
        Transliterator hl = lh.getInverse();
        final UnicodeSet representativeHangul = getRepresentativeHangul();
        for (UnicodeSetIterator it = new UnicodeSetIterator(representativeHangul); it.next();) {
            assertRoundTripTransform("Transform", it.getString(), lh, hl);
        }
    }

    private void assertRoundTripTransform(String message, String source, Transliterator lh, Transliterator hl) {
        String to = hl.transform(source);
        String back = lh.transform(to);
        if (!source.equals(back)) {
            String to2 = hl.transform(source.replaceAll("(.)", "$1 ").trim());
            String to3 = hl.transform(back.replaceAll("(.)", "$1 ").trim());
            assertEquals(message + " " + source + " [" + to + "/"+ to2 + "/"+ to3 + "]", source, back);
        }
    }

    public static UnicodeSet getRepresentativeHangul() {
        UnicodeSet extraSamples = new UnicodeSet("[\uCE20{\uAD6C\uB514}{\uAD73\uC774}{\uBB34\uB837}{\uBB3C\uC5FF}{\uC544\uAE4C}{\uC544\uB530}{\uC544\uBE60}{\uC544\uC2F8}{\uC544\uC9DC}{\uC544\uCC28}{\uC545\uC0AC}{\uC545\uC2F8}{\uC546\uCE74}{\uC548\uAC00}{\uC548\uC790}{\uC548\uC9DC}{\uC548\uD558}{\uC54C\uAC00}{\uC54C\uB530}{\uC54C\uB9C8}{\uC54C\uBC14}{\uC54C\uBE60}{\uC54C\uC0AC}{\uC54C\uC2F8}{\uC54C\uD0C0}{\uC54C\uD30C}{\uC54C\uD558}{\uC555\uC0AC}{\uC555\uC2F8}{\uC558\uC0AC}{\uC5C5\uC12F\uC501}{\uC5C6\uC5C8\uC2B5}]");
        UnicodeSet sourceSet = new UnicodeSet();
        addRepresentativeHangul(sourceSet, 2, false);
        addRepresentativeHangul(sourceSet, 3, false);
        addRepresentativeHangul(sourceSet, 2, true);
        addRepresentativeHangul(sourceSet, 3, true);
        // add the boundary cases; we want an example of each case of V + L and one example of each case of T+L

        UnicodeSet more = getRepresentativeBoundaryHangul();
        sourceSet.addAll(more);
        sourceSet.addAll(extraSamples);
        return sourceSet;
    }

    private static UnicodeSet getRepresentativeBoundaryHangul() {
        UnicodeSet resultToAddTo = new UnicodeSet();
        // U+1100 HANGUL CHOSEONG KIYEOK
        // U+1161 HANGUL JUNGSEONG A
        UnicodeSet L = new UnicodeSet("[:hst=L:]");
        UnicodeSet V = new UnicodeSet("[:hst=V:]");
        UnicodeSet T = new UnicodeSet("[:hst=T:]");

        String prefixLV = "\u1100\u1161";
        String prefixL = "\u1100";
        String suffixV = "\u1161";
        String nullL = "\u110B"; // HANGUL CHOSEONG IEUNG

        UnicodeSet L0 = new UnicodeSet("[\u1100\u110B]");

        // do all combinations of L0 + V + nullL + V

        for (UnicodeSetIterator iL0 = new UnicodeSetIterator(L0); iL0.next();) {
            for (UnicodeSetIterator iV = new UnicodeSetIterator(V); iV.next();) {
                for (UnicodeSetIterator iV2 = new UnicodeSetIterator(V); iV2.next();) {
                    String sample = iL0.getString() + iV.getString() + nullL + iV2.getString();
                    String trial = Normalizer.compose(sample, false);
                    if (trial.length() == 2) {
                        resultToAddTo.add(trial);
                    }
                }
            }
        }

        for (UnicodeSetIterator iL = new UnicodeSetIterator(L); iL.next();) {
            // do all combinations of "g" + V + L + "a"
            final String suffix = iL.getString() + suffixV;
            for (UnicodeSetIterator iV = new UnicodeSetIterator(V); iV.next();) {
                String sample = prefixL + iV.getString() + suffix;
                String trial = Normalizer.compose(sample, false);
                if (trial.length() == 2) {
                    resultToAddTo.add(trial);
                }
            }
            // do all combinations of "ga" + T + L + "a"
            for (UnicodeSetIterator iT = new UnicodeSetIterator(T); iT.next();) {
                String sample = prefixLV + iT.getString() + suffix;
                String trial = Normalizer.compose(sample, false);
                if (trial.length() == 2) {
                    resultToAddTo.add(trial);
                }
            }
        }
        return resultToAddTo;
    }

    private static void addRepresentativeHangul(UnicodeSet resultToAddTo, int leng, boolean noFirstConsonant) {
        UnicodeSet notYetSeen = new UnicodeSet();
        for (char c = '\uAC00'; c <  '\uD7AF'; ++c) {
            String charStr = String.valueOf(c);
            String decomp = Normalizer.decompose(charStr, false);
            if (decomp.length() != leng) {
                continue; // only take one length at a time
            }
            if (decomp.startsWith("\u110B ") != noFirstConsonant) {
                continue;
            }
            if (!notYetSeen.containsAll(decomp)) {
                resultToAddTo.add(c);
                notYetSeen.addAll(decomp);
            }
        }
    }


    public void TestHan() throws UnsupportedEncodingException, FileNotFoundException {
        try{
            UnicodeSet exemplars = LocaleData.getExemplarSet(new ULocale("zh"),0);
            // create string with all chars
            StringBuffer b = new StringBuffer();
            for (UnicodeSetIterator it = new UnicodeSetIterator(exemplars); it.next();) {
                UTF16.append(b,it.codepoint);
            }
            String source = b.toString();
            // transform with Han translit
            Transliterator han = Transliterator.getInstance("Han-Latin");
            String target = han.transliterate(source);
            // now verify that there are no Han characters left
            UnicodeSet allHan = new UnicodeSet("[:han:]");
            assertFalse("No Han must be left after Han-Latin transliteration",allHan.containsSome(target));
            // check the pinyin translit
            Transliterator pn = Transliterator.getInstance("Latin-NumericPinyin");
            String target2 = pn.transliterate(target);
            // verify that there are no marks
            Transliterator nfc = Transliterator.getInstance("nfc");
            String nfced = nfc.transliterate(target2);
            UnicodeSet allMarks = new UnicodeSet("[:mark:]");
            assertFalse("NumericPinyin must contain no marks", allMarks.containsSome(nfced));
            // verify roundtrip
            Transliterator np = pn.getInverse();
            String target3 = np.transliterate(target);
            boolean roundtripOK = target3.equals(target);
            assertTrue("NumericPinyin must roundtrip", roundtripOK);
            if (!roundtripOK) {
                String filename = "numeric-pinyin.log.txt";
                PrintWriter out = new PrintWriter(
                        new BufferedWriter(
                                new OutputStreamWriter(
                                        new FileOutputStream(filename), "UTF8"), 4*1024));
                errln("Creating log file " + new File(filename).getAbsoluteFile());
                out.println("Pinyin:                " + target);
                out.println("Pinyin-Numeric-Pinyin: " + target2);
                out.close();
            }
        }catch(MissingResourceException ex){
            warnln("Could not load the locale data for fetching the exemplar characters.");
        }
    }

    public void TestSingle() {
        Transliterator t = Transliterator.getInstance("Latin-Greek");
        t.transliterate("\u0061\u0101\u0069");
    }

    String getGreekSet() {
        if (FIX_ME) {
            errln("TestGreek needs to be updated to remove delete the [:Age=4.0:] filter ");
        } else {
            // We temporarily filter against Unicode 4.1, but we only do this
            // before version 3.5.
            logln("TestGreek needs to be updated to remove delete the section marked [:Age=4.0:] filter");
        }

        return 
        "[\u003B\u00B7[[:Greek:]&[:Letter:]]-[" +
        "\u1D26-\u1D2A" + // L&   [5] GREEK LETTER SMALL CAPITAL GAMMA..GREEK LETTER SMALL CAPITAL PSI
        "\u1D5D-\u1D61" + // Lm   [5] MODIFIER LETTER SMALL BETA..MODIFIER LETTER SMALL CHI
        "\u1D66-\u1D6A" + // L&   [5] GREEK SUBSCRIPT SMALL LETTER BETA..GREEK SUBSCRIPT SMALL LETTER CHI
        "\u03D7-\u03EF" + // \N{GREEK KAI SYMBOL}..\N{COPTIC SMALL LETTER DEI}
        "] & [:Age=4.0:]]";
    }

    public void TestGreek() throws IOException {
        long start = System.currentTimeMillis();
        new Test("Latin-Greek", 50)
        .test("[a-zA-Z]", getGreekSet(),
                "[\u00B5\u037A\u03D0-\u03F5\u03F9]", /* roundtrip exclusions */
                this, new LegalGreek(true));
        showElapsed(start, "TestGreek");
    }

    public void TestGreekUNGEGN() throws IOException {
        long start = System.currentTimeMillis();
        new Test("Latin-Greek/UNGEGN")
        .test("[a-zA-Z]", getGreekSet(),
                "[\u00B5\u037A\u03D0-\uFFFF{\u039C\u03C0}]", /* roundtrip exclusions */
                this, new LegalGreek(false));
        showElapsed(start, "TestGreekUNGEGN");
    }

    public void Testel() throws IOException {
        long start = System.currentTimeMillis();
        new Test("Latin-el")
        .test("[a-zA-Z]", getGreekSet(),
                "[\u00B5\u037A\u03D0-\uFFFF{\u039C\u03C0}]", /* roundtrip exclusions */
                this, new LegalGreek(false));
        showElapsed(start, "Testel");
    }

    public void TestCyrillic() throws IOException {
        long start = System.currentTimeMillis();
        new Test("Latin-Cyrillic")
        .test("[a-zA-Z\u0110\u0111\u02BA\u02B9]", "[\u0400-\u045F]", null, this, new Legal());
        showElapsed(start, "TestCyrillic");
    }

    static final String ARABIC = "[\u06A9\u060C\u061B\u061F\u0621\u0627-\u063A\u0641-\u0655\u0660-\u066C\u067E\u0686\u0698\u06A4\u06AD\u06AF\u06CB-\u06CC\u06F0-\u06F9]";

    public void TestArabic() throws IOException {
        long start = System.currentTimeMillis();
        new Test("Latin-Arabic")
        .test("[a-zA-Z\u02BE\u02BF]", ARABIC, "[a-zA-Z\u02BE\u02BF\u207F]", null, this, new Legal()); //
        showElapsed(start, "TestArabic");
    }

    public void TestHebrew() throws IOException {
        if (FIX_ME) {
            errln("TestHebrew needs to be updated to remove delete the [:Age=4.0:] filter ");
        } else {
            // We temporarily filter against Unicode 4.1, but we only do this
            // before version 3.5.
            logln("TestHebrew needs to be updated to remove delete the section marked [:Age=4.0:] filter");
        }
        long start = System.currentTimeMillis();
        new Test("Latin-Hebrew")
        .test("[a-zA-Z\u02BC\u02BB]", "[[[:hebrew:]-[\u05BD\uFB00-\uFBFF]]& [:Age=4.0:]]", "[\u05F0\u05F1\u05F2]", this, new LegalHebrew());
        showElapsed(start, "TestHebrew");
    }

    public void TestThai() throws IOException {
        long start = System.currentTimeMillis();
        if (FIX_ME) {
            new Test("Latin-Thai")
            .test("[a-zA-Z\u0142\u1ECD\u00E6\u0131\u0268\u02CC]",
                    "[\u0E01-\u0E3A\u0E40-\u0E5B]", 
                    "[a-zA-Z\u0142\u1ECD\u00E6\u0131\u0268\u02B9\u02CC]",
                    null, this, new LegalThai());
        } else {
            new Test("Latin-Thai")
            .test("[a-zA-Z\u0142\u1ECD\u00E6\u0131\u0268\u02CC]",
                    "[\u0E01-\u0E3A\u0E40-\u0E5B]", 
                    "[a-zA-Z\u0142\u1ECD\u00E6\u0131\u0268\u02B9\u02CC]",
                    "[\u0E4F]", this, new LegalThai());   
        }

        showElapsed(start, "TestThai");
    }

    //----------------------------------
    // Inter-Indic Tests
    //----------------------------------
    public static class LegalIndic extends Legal{
        UnicodeSet vowelSignSet = new UnicodeSet();

        public LegalIndic(){
            vowelSignSet.addAll(new UnicodeSet("[\u0901\u0902\u0903\u0904\u093e-\u094c\u0962\u0963]"));               /* Devanagari */
            vowelSignSet.addAll(new UnicodeSet("[\u0981\u0982\u0983\u09be-\u09cc\u09e2\u09e3\u09D7]"));         /* Bengali */
            vowelSignSet.addAll(new UnicodeSet("[\u0a01\u0a02\u0a03\u0a3e-\u0a4c\u0a62\u0a63\u0a70\u0a71]"));   /* Gurmukhi */
            vowelSignSet.addAll(new UnicodeSet("[\u0a81\u0a82\u0a83\u0abe-\u0acc\u0ae2\u0ae3]"));               /* Gujarati */
            vowelSignSet.addAll(new UnicodeSet("[\u0b01\u0b02\u0b03\u0b3e-\u0b4c\u0b62\u0b63\u0b56\u0b57]"));   /* Oriya */
            vowelSignSet.addAll(new UnicodeSet("[\u0b81\u0b82\u0b83\u0bbe-\u0bcc\u0be2\u0be3\u0bd7]"));         /* Tamil */
            vowelSignSet.addAll(new UnicodeSet("[\u0c01\u0c02\u0c03\u0c3e-\u0c4c\u0c62\u0c63\u0c55\u0c56]"));   /* Telugu */
            vowelSignSet.addAll(new UnicodeSet("[\u0c81\u0c82\u0c83\u0cbe-\u0ccc\u0ce2\u0ce3\u0cd5\u0cd6]"));   /* Kannada */
            vowelSignSet.addAll(new UnicodeSet("[\u0d01\u0d02\u0d03\u0d3e-\u0d4c\u0d62\u0d63\u0d57]"));         /* Malayalam */
        }

        String avagraha = "\u093d\u09bd\u0abd\u0b3d\u0cbd";
        String nukta = "\u093c\u09bc\u0a3c\u0abc\u0b3c\u0cbc";
        String virama = "\u094d\u09cd\u0a4d\u0acd\u0b4d\u0bcd\u0c4d\u0ccd\u0d4d";
        String sanskritStressSigns = "\u0951\u0952\u0953\u0954\u097d";
        String chandrabindu = "\u0901\u0981\u0A81\u0b01\u0c01";
        public boolean is(String sourceString){
            int cp=sourceString.charAt(0);

            // A vowel sign cannot be the first char
            if(vowelSignSet.contains(cp)){
                return false;
            }else if(avagraha.indexOf(cp)!=-1){
                return false;
            }else if(virama.indexOf(cp)!=-1){
                return false;
            }else if(nukta.indexOf(cp)!=-1){
                return false;
            }else if(sanskritStressSigns.indexOf(cp)!=-1){
                return false;
            }else if((chandrabindu.indexOf(cp)!=-1) &&
                    (sourceString.length() >1 &&
                            vowelSignSet.contains(sourceString.charAt(1)))){
                return false;
            }
            return true;
        }
    }
    static String latinForIndic = "[['.0-9A-Za-z~\u00C0-\u00C5\u00C7-\u00CF\u00D1-\u00D6\u00D9-\u00DD"+
    "\u00E0-\u00E5\u00E7-\u00EF\u00F1-\u00F6\u00F9-\u00FD\u00FF-\u010F"+
    "\u0112-\u0125\u0128-\u0130\u0134-\u0137\u0139-\u013E\u0143-\u0148"+
    "\u014C-\u0151\u0154-\u0165\u0168-\u017E\u01A0-\u01A1\u01AF-\u01B0"+
    "\u01CD-\u01DC\u01DE-\u01E3\u01E6-\u01ED\u01F0\u01F4-\u01F5\u01F8-\u01FB"+
    "\u0200-\u021B\u021E-\u021F\u0226-\u0233\u0294\u0303-\u0304\u0306\u0314-\u0315"+
    "\u0325\u040E\u0419\u0439\u045E\u04C1-\u04C2\u04D0-\u04D1\u04D6-\u04D7"+
    "\u04E2-\u04E3\u04EE-\u04EF\u1E00-\u1E99\u1EA0-\u1EF9\u1F01\u1F03\u1F05"+
    "\u1F07\u1F09\u1F0B\u1F0D\u1F0F\u1F11\u1F13\u1F15\u1F19\u1F1B\u1F1D\u1F21"+
    "\u1F23\u1F25\u1F27\u1F29\u1F2B\u1F2D\u1F2F\u1F31\u1F33\u1F35\u1F37\u1F39"+
    "\u1F3B\u1F3D\u1F3F\u1F41\u1F43\u1F45\u1F49\u1F4B\u1F4D\u1F51\u1F53\u1F55"+
    "\u1F57\u1F59\u1F5B\u1F5D\u1F5F\u1F61\u1F63\u1F65\u1F67\u1F69\u1F6B\u1F6D"+
    "\u1F6F\u1F81\u1F83\u1F85\u1F87\u1F89\u1F8B\u1F8D\u1F8F\u1F91\u1F93\u1F95"+
    "\u1F97\u1F99\u1F9B\u1F9D\u1F9F\u1FA1\u1FA3\u1FA5\u1FA7\u1FA9\u1FAB\u1FAD"+
    "\u1FAF-\u1FB1\u1FB8-\u1FB9\u1FD0-\u1FD1\u1FD8-\u1FD9\u1FE0-\u1FE1\u1FE5"+
    "\u1FE8-\u1FE9\u1FEC\u212A-\u212B\uE04D\uE064]"+
    "-[\uE000-\uE080 \u01E2\u01E3]& [[:latin:][:mark:]]]";

    public void TestDevanagariLatin() throws IOException {
        long start = System.currentTimeMillis();
        if (FIX_ME) {
            // We temporarily filter against Unicode 4.1, but we only do this
            // before version 3.4.
            errln("FAIL: TestDevanagariLatin needs to be updated to remove delete the [:Age=4.1:] filter ");
            return;
        }
        logln("Warning: TestDevanagariLatin needs to be updated to remove delete the section marked [:Age=4.1:] filter");

        String minusDevAbb = logKnownIssue("cldrbug:4375", null) ? "-[\u0970]" : "";
        new Test("Latin-DEVANAGARI", 50)
        .test(latinForIndic, "[[[:Devanagari:][\u094d][\u0964\u0965]" + minusDevAbb + "]&[:Age=4.1:]]", "[\u0965\u0904]", this, new LegalIndic());
        showElapsed(start, "TestDevanagariLatin");
    }

    private static final String [][] interIndicArray= new String[][]{
        new String [] {  "BENGALI-DEVANAGARI",
                "[:BENGALI:]", "[:Devanagari:]",
                "[\u0904\u0951-\u0954\u0943-\u0949\u094a\u0962\u0963\u090D\u090e\u0911\u0912\u0929\u0933\u0934\u0935\u0950\u0958\u0959\u095a\u095b\u095e\u097d]", /*roundtrip exclusions*/
        },
        new String [] {  "DEVANAGARI-BENGALI",
                "[:Devanagari:]", "[:BENGALI:]",
                "[\u09D7\u090D\u090e\u0911\u0912\u0929\u0933\u0934\u0935\u0950\u0958\u0959\u095a\u095b\u095e\u09f0\u09f1\u09f2-\u09fa\u09ce]", /*roundtrip exclusions*/
        },

        new String [] {  "GURMUKHI-DEVANAGARI",
                "[:GURMUKHI:]", "[:Devanagari:]",
                "[\u0904\u0902\u0936\u0933\u0951-\u0954\u0902\u0903\u0943-\u0949\u094a\u0962\u0963\u090B\u090C\u090D\u090e\u0911\u0912\u0934\u0937\u093D\u0950\u0960\u0961\u097d]", /*roundtrip exclusions*/
        },
        new String [] {  "DEVANAGARI-GURMUKHI",
                "[:Devanagari:]", "[:GURMUKHI:]",
                "[\u0A02\u0946\u0A5C\u0951-\u0954\u0A70\u0A71\u090B\u090C\u090D\u090e\u0911\u0912\u0934\u0937\u093D\u0950\u0960\u0961\u0a72\u0a73\u0a74]", /*roundtrip exclusions*/
        },

        new String [] {  "GUJARATI-DEVANAGARI",
                "[:GUJARATI:]", "[:Devanagari:]",
                "[\u0904\u0946\u094A\u0962\u0963\u0951-\u0954\u0961\u090c\u090e\u0912\u097d]", /*roundtrip exclusions*/
        },
        new String [] {  "DEVANAGARI-GUJARATI",
                "[:Devanagari:]", "[:GUJARATI:]",
                "[\u0951-\u0954\u0961\u090c\u090e\u0912]", /*roundtrip exclusions*/
        },

        new String [] {  "ORIYA-DEVANAGARI",
                "[:ORIYA:]", "[:Devanagari:]",
                "[\u0904\u0912\u0911\u090D\u090e\u0931\u0943-\u094a\u0962\u0963\u0951-\u0954\u0950\u097d]", /*roundtrip exclusions*/
        },
        new String [] {  "DEVANAGARI-ORIYA",
                "[:Devanagari:]", "[:ORIYA:]",
                "[\u0b5f\u0b56\u0b57\u0b70\u0b71\u0950\u090D\u090e\u0912\u0911\u0931]", /*roundtrip exclusions*/
        },

        new String [] {  "Tamil-DEVANAGARI",
                "[:tamil:]", "[:Devanagari:]",
                "[\u0901\u0904\u093c\u0943-\u094a\u0951-\u0954\u0962\u0963\u090B\u090C\u090D\u0911\u0916\u0917\u0918\u091B\u091D\u0920\u0921\u0922\u0925\u0926\u0927\u092B\u092C\u092D\u0936\u093d\u0950[\u0958-\u0961]\u097d]", /*roundtrip exclusions*/
        },
        new String [] {  "DEVANAGARI-Tamil",
                "[:Devanagari:]", "[:tamil:]",
                "[\u0bd7\u0BF0\u0BF1\u0BF2]", /*roundtrip exclusions*/
        },

        new String [] {  "Telugu-DEVANAGARI",
                "[:telugu:]", "[:Devanagari:]",
                "[\u0904\u093c\u0950\u0945\u0949\u0951-\u0954\u0962\u0963\u090D\u0911\u093d\u0929\u0934[\u0958-\u095f]\u097d]", /*roundtrip exclusions*/
        },
        new String [] {  "DEVANAGARI-TELUGU",
                "[:Devanagari:]", "[:TELUGU:]",
                "[\u0c55\u0c56\u0950\u090D\u0911\u093d\u0929\u0934[\u0958-\u095f]]", /*roundtrip exclusions*/
        },

        new String [] {  "KANNADA-DEVANAGARI",
                "[:KANNADA:]", "[:Devanagari:]",
                "[\u0901\u0904\u0946\u0950\u0945\u0949\u0951-\u0954\u0962\u0963\u0950\u090D\u0911\u093d\u0929\u0934[\u0958-\u095f]\u097d]", /*roundtrip exclusions*/
        },
        new String [] {  "DEVANAGARI-KANNADA",
                "[:Devanagari:]", "[:KANNADA:]",
                "[{\u0cb0\u0cbc}{\u0cb3\u0cbc}\u0cde\u0cd5\u0cd6\u0950\u090D\u0911\u093d\u0929\u0934[\u0958-\u095f]]", /*roundtrip exclusions*/
        },

        new String [] {  "MALAYALAM-DEVANAGARI",
                "[:MALAYALAM:]", "[:Devanagari:]",
                "[\u0901\u0904\u094a\u094b\u094c\u093c\u0950\u0944\u0945\u0949\u0951-\u0954\u0962\u0963\u090D\u0911\u093d\u0929\u0934[\u0958-\u095f]\u097d]", /*roundtrip exclusions*/
        },
        new String [] {  "DEVANAGARI-MALAYALAM",
                "[:Devanagari:]", "[:MALAYALAM:]",
                "[\u0d4c\u0d57\u0950\u090D\u0911\u093d\u0929\u0934[\u0958-\u095f]]", /*roundtrip exclusions*/
        },

        new String [] {  "GURMUKHI-BENGALI",
                "[:GURMUKHI:]", "[:BENGALI:]",
                "[\u0982\u09b6\u09e2\u09e3\u09c3\u09c4\u09d7\u098B\u098C\u09B7\u09E0\u09E1\u09F0\u09F1\u09f2-\u09fa\u09ce]", /*roundtrip exclusions*/
        },
        new String [] {  "BENGALI-GURMUKHI",
                "[:BENGALI:]", "[:GURMUKHI:]",
                "[\u0A02\u0a5c\u0a47\u0a70\u0a71\u0A33\u0A35\u0A59\u0A5A\u0A5B\u0A5E\u0A72\u0A73\u0A74]", /*roundtrip exclusions*/
        },

        new String [] {  "GUJARATI-BENGALI",
                "[:GUJARATI:]", "[:BENGALI:]",
                "[\u09d7\u09e2\u09e3\u098c\u09e1\u09f0\u09f1\u09f2-\u09fa\u09ce]", /*roundtrip exclusions*/
        },
        new String [] {  "BENGALI-GUJARATI",
                "[:BENGALI:]", "[:GUJARATI:]",
                "[\u0A82\u0a83\u0Ac9\u0Ac5\u0ac7\u0A8D\u0A91\u0AB3\u0AB5\u0ABD\u0AD0]", /*roundtrip exclusions*/
        },

        new String [] {  "ORIYA-BENGALI",
                "[:ORIYA:]", "[:BENGALI:]",
                "[\u09c4\u09e2\u09e3\u09f0\u09f1\u09f2-\u09fa\u09ce]", /*roundtrip exclusions*/
        },
        new String [] {  "BENGALI-ORIYA",
                "[:BENGALI:]", "[:ORIYA:]",
                "[\u0b35\u0b71\u0b5f\u0b56\u0b33\u0b3d]", /*roundtrip exclusions*/
        },

        new String [] {  "Tamil-BENGALI",
                "[:tamil:]", "[:BENGALI:]",
                "[\u0981\u09bc\u09c3\u09c4\u09e2\u09e3\u09f0\u09f1\u098B\u098C\u0996\u0997\u0998\u099B\u099D\u09A0\u09A1\u09A2\u09A5\u09A6\u09A7\u09AB\u09AC\u09AD\u09B6\u09DC\u09DD\u09DF\u09E0\u09E1\u09f2-\u09fa\u09ce]", /*roundtrip exclusions*/
        },
        new String [] {  "BENGALI-Tamil",
                "[:BENGALI:]", "[:tamil:]",
                "[\u0bc6\u0bc7\u0bca\u0B8E\u0B92\u0BA9\u0BB1\u0BB3\u0BB4\u0BB5\u0BF0\u0BF1\u0BF2]", /*roundtrip exclusions*/
        },

        new String [] {  "Telugu-BENGALI",
                "[:telugu:]", "[:BENGALI:]",
                "[\u09e2\u09e3\u09bc\u09d7\u09f0\u09f1\u09dc\u09dd\u09df\u09f2-\u09fa\u09ce]", /*roundtrip exclusions*/
        },
        new String [] {  "BENGALI-TELUGU",
                "[:BENGALI:]", "[:TELUGU:]",
                "[\u0c55\u0c56\u0c47\u0c46\u0c4a\u0C0E\u0C12\u0C31\u0C33\u0C35]", /*roundtrip exclusions*/
        },

        new String [] {  "KANNADA-BENGALI",
                "[:KANNADA:]", "[:BENGALI:]",
                "[\u0981\u09e2\u09e3\u09bc\u09d7\u09f0\u09f1\u09dc\u09dd\u09df\u09f2-\u09fa\u09ce]", /*roundtrip exclusions*/
        },
        new String [] {  "BENGALI-KANNADA",
                "[:BENGALI:]", "[:KANNADA:]",
                "[{\u0cb0\u0cbc}{\u0cb3\u0cbc}\u0cc6\u0cca\u0cd5\u0cd6\u0cc7\u0C8E\u0C92\u0CB1\u0cb3\u0cb5\u0cde]", /*roundtrip exclusions*/
        },

        new String [] {  "MALAYALAM-BENGALI",
                "[:MALAYALAM:]", "[:BENGALI:]",
                "[\u0981\u09e2\u09e3\u09bc\u09c4\u09f0\u09f1\u09dc\u09dd\u09df\u09f2-\u09fa\u09ce]", /*roundtrip exclusions*/
        },
        new String [] {  "BENGALI-MALAYALAM",
                "[:BENGALI:]", "[:MALAYALAM:]",
                "[\u0d46\u0d4a\u0d47\u0d31-\u0d35\u0d0e\u0d12]", /*roundtrip exclusions*/
        },

        new String [] {  "GUJARATI-GURMUKHI",
                "[:GUJARATI:]", "[:GURMUKHI:]",
                "[\u0A02\u0ab3\u0ab6\u0A70\u0a71\u0a82\u0a83\u0ac3\u0ac4\u0ac5\u0ac9\u0a5c\u0a72\u0a73\u0a74\u0a8b\u0a8d\u0a91\u0abd]", /*roundtrip exclusions*/
        },
        new String [] {  "GURMUKHI-GUJARATI",
                "[:GURMUKHI:]", "[:GUJARATI:]",
                "[\u0a5c\u0A70\u0a71\u0a72\u0a73\u0a74\u0a82\u0a83\u0a8b\u0a8c\u0a8d\u0a91\u0ab3\u0ab6\u0ab7\u0abd\u0ac3\u0ac4\u0ac5\u0ac9\u0ad0\u0ae0\u0ae1]", /*roundtrip exclusions*/
        },

        new String [] {  "ORIYA-GURMUKHI",
                "[:ORIYA:]", "[:GURMUKHI:]",
                "[\u0A02\u0a5c\u0a21\u0a47\u0a71\u0b02\u0b03\u0b33\u0b36\u0b43\u0b56\u0b57\u0B0B\u0B0C\u0B37\u0B3D\u0B5F\u0B60\u0B61\u0a35\u0a72\u0a73\u0a74]", /*roundtrip exclusions*/
        },
        new String [] {  "GURMUKHI-ORIYA",
                "[:GURMUKHI:]", "[:ORIYA:]",
                "[\u0a71\u0b02\u0b03\u0b33\u0b36\u0b43\u0b56\u0b57\u0B0B\u0B0C\u0B37\u0B3D\u0B5F\u0B60\u0B61\u0b70\u0b71]", /*roundtrip exclusions*/
        },

        new String [] {  "TAMIL-GURMUKHI",
                "[:TAMIL:]", "[:GURMUKHI:]",
                "[\u0A01\u0A02\u0a33\u0a36\u0a3c\u0a70\u0a71\u0a47\u0A16\u0A17\u0A18\u0A1B\u0A1D\u0A20\u0A21\u0A22\u0A25\u0A26\u0A27\u0A2B\u0A2C\u0A2D\u0A59\u0A5A\u0A5B\u0A5C\u0A5E\u0A72\u0A73\u0A74]", /*roundtrip exclusions*/
        },
        new String [] {  "GURMUKHI-TAMIL",
                "[:GURMUKHI:]", "[:TAMIL:]",
                "[\u0b82\u0bc6\u0bca\u0bd7\u0bb7\u0bb3\u0b83\u0B8E\u0B92\u0BA9\u0BB1\u0BB4\u0bb6\u0BF0\u0BF1\u0BF2]", /*roundtrip exclusions*/
        },

        new String [] {  "TELUGU-GURMUKHI",
                "[:TELUGU:]", "[:GURMUKHI:]",
                "[\u0A02\u0a33\u0a36\u0a3c\u0a70\u0a71\u0A59\u0A5A\u0A5B\u0A5C\u0A5E\u0A72\u0A73\u0A74]", /*roundtrip exclusions*/
        },
        new String [] {  "GURMUKHI-TELUGU",
                "[:GURMUKHI:]", "[:TELUGU:]",
                "[\u0c02\u0c03\u0c33\u0c36\u0c44\u0c43\u0c46\u0c4a\u0c56\u0c55\u0C0B\u0C0C\u0C0E\u0C12\u0C31\u0C37\u0C60\u0C61]", /*roundtrip exclusions*/
        },
        new String [] {  "KANNADA-GURMUKHI",
                "[:KANNADA:]", "[:GURMUKHI:]",
                "[\u0A01\u0A02\u0a33\u0a36\u0a3c\u0a70\u0a71\u0A59\u0A5A\u0A5B\u0A5C\u0A5E\u0A72\u0A73\u0A74]", /*roundtrip exclusions*/
        },
        new String [] {  "GURMUKHI-KANNADA",
                "[:GURMUKHI:]", "[:KANNADA:]",
                "[{\u0cb0\u0cbc}{\u0cb3\u0cbc}\u0c82\u0c83\u0cb3\u0cb6\u0cc4\u0cc3\u0cc6\u0cca\u0cd5\u0cd6\u0C8B\u0C8C\u0C8E\u0C92\u0CB1\u0CB7\u0cbd\u0CE0\u0CE1\u0cde]", /*roundtrip exclusions*/
        },

        new String [] {  "MALAYALAM-GURMUKHI",
                "[:MALAYALAM:]", "[:GURMUKHI:]",
                "[\u0A01\u0A02\u0a4b\u0a4c\u0a33\u0a36\u0a3c\u0a70\u0a71\u0A59\u0A5A\u0A5B\u0A5C\u0A5E\u0A72\u0A73\u0A74]", /*roundtrip exclusions*/
        },
        new String [] {  "GURMUKHI-MALAYALAM",
                "[:GURMUKHI:]", "[:MALAYALAM:]",
                "[\u0d02\u0d03\u0d33\u0d36\u0d43\u0d46\u0d4a\u0d4c\u0d57\u0D0B\u0D0C\u0D0E\u0D12\u0D31\u0D34\u0D37\u0D60\u0D61]", /*roundtrip exclusions*/
        },

        new String [] {  "GUJARATI-ORIYA",
                "[:GUJARATI:]", "[:ORIYA:]",
                "[\u0b56\u0b57\u0B0C\u0B5F\u0B61\u0b70\u0b71]", /*roundtrip exclusions*/
        },
        new String [] {  "ORIYA-GUJARATI",
                "[:ORIYA:]", "[:GUJARATI:]",
                "[\u0Ac4\u0Ac5\u0Ac9\u0Ac7\u0A8D\u0A91\u0AB5\u0Ad0]", /*roundtrip exclusions*/
        },

        new String [] {  "TAMIL-GUJARATI",
                "[:TAMIL:]", "[:GUJARATI:]",
                "[\u0A81\u0a8c\u0abc\u0ac3\u0Ac4\u0Ac5\u0Ac9\u0Ac7\u0A8B\u0A8D\u0A91\u0A96\u0A97\u0A98\u0A9B\u0A9D\u0AA0\u0AA1\u0AA2\u0AA5\u0AA6\u0AA7\u0AAB\u0AAC\u0AAD\u0AB6\u0ABD\u0AD0\u0AE0\u0AE1]", /*roundtrip exclusions*/
        },
        new String [] {  "GUJARATI-TAMIL",
                "[:GUJARATI:]", "[:TAMIL:]",
                "[\u0Bc6\u0Bca\u0Bd7\u0B8E\u0B92\u0BA9\u0BB1\u0BB4\u0BF0\u0BF1\u0BF2]", /*roundtrip exclusions*/
        },

        new String [] {  "TELUGU-GUJARATI",
                "[:TELUGU:]", "[:GUJARATI:]",
                "[\u0abc\u0Ac5\u0Ac9\u0A8D\u0A91\u0ABD\u0Ad0]", /*roundtrip exclusions*/
        },
        new String [] {  "GUJARATI-TELUGU",
                "[:GUJARATI:]", "[:TELUGU:]",
                "[\u0c46\u0c4a\u0c55\u0c56\u0C0C\u0C0E\u0C12\u0C31\u0C61]", /*roundtrip exclusions*/
        },

        new String [] {  "KANNADA-GUJARATI",
                "[:KANNADA:]", "[:GUJARATI:]",
                "[\u0A81\u0abc\u0Ac5\u0Ac9\u0A8D\u0A91\u0ABD\u0Ad0]", /*roundtrip exclusions*/
        },
        new String [] {  "GUJARATI-KANNADA",
                "[:GUJARATI:]", "[:KANNADA:]",
                "[{\u0cb0\u0cbc}{\u0cb3\u0cbc}\u0cc6\u0cca\u0cd5\u0cd6\u0C8C\u0C8E\u0C92\u0CB1\u0CDE\u0CE1]", /*roundtrip exclusions*/
        },

        new String [] {  "MALAYALAM-GUJARATI",
                "[:MALAYALAM:]", "[:GUJARATI:]",
                "[\u0A81\u0ac4\u0acb\u0acc\u0abc\u0Ac5\u0Ac9\u0A8D\u0A91\u0ABD\u0Ad0]", /*roundtrip exclusions*/
        },
        new String [] {  "GUJARATI-MALAYALAM",
                "[:GUJARATI:]", "[:MALAYALAM:]",
                "[\u0d46\u0d4a\u0d4c\u0d55\u0d57\u0D0C\u0D0E\u0D12\u0D31\u0D34\u0D61]", /*roundtrip exclusions*/
        },

        new String [] {  "TAMIL-ORIYA",
                "[:TAMIL:]", "[:ORIYA:]",
                "[\u0B01\u0b3c\u0b43\u0b56\u0B0B\u0B0C\u0B16\u0B17\u0B18\u0B1B\u0B1D\u0B20\u0B21\u0B22\u0B25\u0B26\u0B27\u0B2B\u0B2C\u0B2D\u0B36\u0B3D\u0B5C\u0B5D\u0B5F\u0B60\u0B61\u0b70\u0b71]", /*roundtrip exclusions*/
        },
        new String [] {  "ORIYA-TAMIL",
                "[:ORIYA:]", "[:TAMIL:]",
                "[\u0bc6\u0bca\u0bc7\u0B8E\u0B92\u0BA9\u0BB1\u0BB4\u0BB5\u0BF0\u0BF1\u0BF2]", /*roundtrip exclusions*/
        },

        new String [] {  "TELUGU-ORIYA",
                "[:TELUGU:]", "[:ORIYA:]",
                "[\u0b3c\u0b57\u0b56\u0B3D\u0B5C\u0B5D\u0B5F\u0b70\u0b71]", /*roundtrip exclusions*/
        },
        new String [] {  "ORIYA-TELUGU",
                "[:ORIYA:]", "[:TELUGU:]",
                "[\u0c44\u0c46\u0c4a\u0c55\u0c47\u0C0E\u0C12\u0C31\u0C35]", /*roundtrip exclusions*/
        },

        new String [] {  "KANNADA-ORIYA",
                "[:KANNADA:]", "[:ORIYA:]",
                "[\u0B01\u0b3c\u0b57\u0B3D\u0B5C\u0B5D\u0B5F\u0b70\u0b71]", /*roundtrip exclusions*/
        },
        new String [] {  "ORIYA-KANNADA",
                "[:ORIYA:]", "[:KANNADA:]",
                "[{\u0cb0\u0cbc}{\u0cb3\u0cbc}\u0cc4\u0cc6\u0cca\u0cd5\u0cc7\u0C8E\u0C92\u0CB1\u0CB5\u0CDE]", /*roundtrip exclusions*/
        },

        new String [] {  "MALAYALAM-ORIYA",
                "[:MALAYALAM:]", "[:ORIYA:]",
                "[\u0B01\u0b3c\u0b56\u0B3D\u0B5C\u0B5D\u0B5F\u0b70\u0b71]", /*roundtrip exclusions*/
        },
        new String [] {  "ORIYA-MALAYALAM",
                "[:ORIYA:]", "[:MALAYALAM:]",
                "[\u0D47\u0D46\u0D4a\u0D0E\u0D12\u0D31\u0D34\u0D35]", /*roundtrip exclusions*/
        },

        new String [] {  "TELUGU-TAMIL",
                "[:TELUGU:]", "[:TAMIL:]",
                "[\u0bd7\u0ba9\u0bb4\u0BF0\u0BF1\u0BF2\u0BF0\u0BF1\u0BF2]", /*roundtrip exclusions*/
        },
        new String [] {  "TAMIL-TELUGU",
                "[:TAMIL:]", "[:TELUGU:]",
                "[\u0C01\u0c43\u0c44\u0c46\u0c47\u0c55\u0c56\u0c66\u0C0B\u0C0C\u0C16\u0C17\u0C18\u0C1B\u0C1D\u0C20\u0C21\u0C22\u0C25\u0C26\u0C27\u0C2B\u0C2C\u0C2D\u0C36\u0C60\u0C61]", /*roundtrip exclusions*/
        },

        new String [] {  "KANNADA-TAMIL",
                "[:KANNADA:]", "[:TAMIL:]",
                "[\u0bd7\u0bc6\u0ba9\u0bb4\u0BF0\u0BF1\u0BF2]", /*roundtrip exclusions*/
        },
        new String [] {  "TAMIL-KANNADA",
                "[:TAMIL:]", "[:KANNADA:]",
                "[\u0cc3\u0cc4\u0cc6\u0cc7\u0cd5\u0cd6\u0C8B\u0C8C\u0C96\u0C97\u0C98\u0C9B\u0C9D\u0CA0\u0CA1\u0CA2\u0CA5\u0CA6\u0CA7\u0CAB\u0CAC\u0CAD\u0CB6\u0cbc\u0cbd\u0CDE\u0CE0\u0CE1]", /*roundtrip exclusions*/
        },

        new String [] {  "MALAYALAM-TAMIL",
                "[:MALAYALAM:]", "[:TAMIL:]",
                "[\u0ba9\u0BF0\u0BF1\u0BF2]", /*roundtrip exclusions*/
        },
        new String [] {  "TAMIL-MALAYALAM",
                "[:TAMIL:]", "[:MALAYALAM:]",
                "[\u0d43\u0d12\u0D0B\u0D0C\u0D16\u0D17\u0D18\u0D1B\u0D1D\u0D20\u0D21\u0D22\u0D25\u0D26\u0D27\u0D2B\u0D2C\u0D2D\u0D36\u0D60\u0D61]", /*roundtrip exclusions*/
        },

        new String [] {  "KANNADA-TELUGU",
                "[:KANNADA:]", "[:TELUGU:]",
                "[\u0C01\u0c3f\u0c46\u0c48\u0c4a]", /*roundtrip exclusions*/
        },
        new String [] {  "TELUGU-KANNADA",
                "[:TELUGU:]", "[:KANNADA:]",
                "[\u0cc8\u0cd5\u0cd6\u0CDE\u0cbc\u0cbd]", /*roundtrip exclusions*/
        },

        new String [] {  "MALAYALAM-TELUGU",
                "[:MALAYALAM:]", "[:TELUGU:]",
                "[\u0C01\u0c44\u0c4a\u0c4c\u0c4b\u0c55\u0c56]", /*roundtrip exclusions*/
        },
        new String [] {  "TELUGU-MALAYALAM",
                "[:TELUGU:]", "[:MALAYALAM:]",
                "[\u0d4c\u0d57\u0D34]", /*roundtrip exclusions*/
        },

        new String [] {  "MALAYALAM-KANNADA",
                "[:MALAYALAM:]", "[:KANNADA:]",
                "[\u0cbc\u0cbd\u0cc4\u0cc6\u0cca\u0ccc\u0ccb\u0cd5\u0cd6\u0cDe]", /*roundtrip exclusions*/
        },
        new String [] {  "Latin-Bengali",
                latinForIndic, "[[:Bengali:][\u0964\u0965]]",
                "[\u0965\u09f0-\u09fa\u09ce]", /*roundtrip exclusions*/
        },
        new String [] {  "Latin-Gurmukhi",
                latinForIndic, "[[:Gurmukhi:][\u0964\u0965]]",
                "[\u0a01\u0a02\u0965\u0a72\u0a73\u0a74]", /*roundtrip exclusions*/
        },
        new String [] {  "Latin-Gujarati",
                latinForIndic, "[[:Gujarati:][\u0964\u0965]]",
                "[\u0965]", /*roundtrip exclusions*/
        },
        new String [] {  "Latin-Oriya",
                latinForIndic, "[[:Oriya:][\u0964\u0965]]",
                "[\u0965\u0b70]", /*roundtrip exclusions*/
        },
        new String [] {  "Latin-Tamil",
                latinForIndic, "[:Tamil:]",
                "[\u0BF0\u0BF1\u0BF2]", /*roundtrip exclusions*/
        },
        new String [] {  "Latin-Telugu",
                latinForIndic, "[:Telugu:]",
                null, /*roundtrip exclusions*/
        },
        new String [] {  "Latin-Kannada",
                latinForIndic, "[:Kannada:]",
                null, /*roundtrip exclusions*/
        },
        new String [] {  "Latin-Malayalam",
                latinForIndic, "[:Malayalam:]",
                null, /*roundtrip exclusions*/
        },
    };

    public void TestInterIndic() throws Exception{
        long start = System.currentTimeMillis();
        int num = interIndicArray.length;
        if (isQuick()) {
            logln("Testing only 5 of "+ interIndicArray.length+" Skipping rest (use -e for exhaustive)");
            num = 5;
        }
        if (FIX_ME) {
            // We temporarily filter against Unicode 4.1, but we only do this
            // before version 3.4.
            errln("FAIL: TestInterIndic needs to be updated to remove delete the [:Age=4.1:] filter ");
            return;
        }
        logln("Warning: TestInterIndic needs to be updated to remove delete the section marked [:Age=4.1:] filter");

        for(int i=0; i<num;i++){
            logln("Testing " + interIndicArray[i][0] + " at index " + i   );
            /*TODO: uncomment the line below when the transliterator is fixed
            new Test(interIndicArray[i][0], 50)
                .test(interIndicArray[i][1],
                      interIndicArray[i][2],
                      interIndicArray[i][3],
                      this, new LegalIndic());
             */
            /* comment lines below  when transliterator is fixed */
            // start
            // TODO(Mark): Fix ticket #8989, transliterate U+0970.
            String minusDevAbb = logKnownIssue("cldrbug:4375", null) ? "-[\u0970]" : "";

            new Test(interIndicArray[i][0], 50)
            .test("[["+interIndicArray[i][1] + minusDevAbb + "] &[:Age=4.1:]]",
                    "[["+interIndicArray[i][2] + minusDevAbb + "] &[:Age=4.1:]]",
                    interIndicArray[i][3],
                    this, new LegalIndic());
            //end
        }
        showElapsed(start, "TestInterIndic");
    }

    //---------------
    // End Indic
    //---------------

    public static class Legal {
        public boolean is(String sourceString) {return true;}
    }

    public static class LegalJamo extends Legal {
        // any initial must be followed by a medial (or initial)
        // any medial must follow an initial (or medial)
        // any final must follow a medial (or final)

        public boolean is(String sourceString) {
            try {
                int t;
                String decomp = Normalizer.normalize(sourceString, Normalizer.NFD);
                for (int i = 0; i < decomp.length(); ++i) { // don't worry about surrogates
                    switch (getType(decomp.charAt(i))) {
                    case 0:
                        t = getType(decomp.charAt(i+1));
                        if (t != 0 && t != 1) return false;
                        break;
                    case 1:
                        t = getType(decomp.charAt(i-1));
                        if (t != 0 && t != 1) return false;
                        break;
                    case 2:
                        t = getType(decomp.charAt(i-1));
                        if (t != 1 && t != 2) return false;
                        break;
                    }
                }
                return true;
            } catch (StringIndexOutOfBoundsException e) {
                return false;
            }
        }

        public int getType(char c) {
            if ('\u1100' <= c && c <= '\u1112') return 0;
            else if ('\u1161' <= c && c  <= '\u1175') return 1;
            else if ('\u11A8' <= c && c  <= '\u11C2') return 2;
            return -1; // other
        }
    }

    //static BreakIterator thaiBreak = BreakIterator.getWordInstance(new Locale("th", "TH"));
    // anything is legal except word ending with Logical-order-exception
    public static class LegalThai extends Legal {
        public boolean is(String sourceString) {
            if (sourceString.length() == 0) return true;
            char ch = sourceString.charAt(sourceString.length() - 1); // don't worry about surrogates.
            if (UCharacter.hasBinaryProperty(ch, UProperty.LOGICAL_ORDER_EXCEPTION)) return false;


            // disallow anything with a wordbreak between
            /*
            if (UTF16.countCodePoint(sourceString) <= 1) return true;
            thaiBreak.setText(sourceString);
            for (int pos = thaiBreak.first(); pos != BreakIterator.DONE; pos = thaiBreak.next()) {
                if (pos > 0 && pos < sourceString.length()) {
                    System.out.println("Skipping " + Utility.escape(sourceString));
                    return false;
                }
            }
             */
            return true;
        }
    }

    // anything is legal except that Final letters can't be followed by letter; NonFinal must be
    public static class LegalHebrew extends Legal {
        static UnicodeSet FINAL = new UnicodeSet("[\u05DA\u05DD\u05DF\u05E3\u05E5]");
        static UnicodeSet NON_FINAL = new UnicodeSet("[\u05DB\u05DE\u05E0\u05E4\u05E6]");
        static UnicodeSet LETTER = new UnicodeSet("[:letter:]");
        public boolean is(String sourceString) {
            if (sourceString.length() == 0) return true;
            // don't worry about surrogates.
            for (int i = 0; i < sourceString.length(); ++i) {
                char ch = sourceString.charAt(i);
                char next = i+1 == sourceString.length() ? '\u0000' : sourceString.charAt(i);
                if (FINAL.contains(ch)) {
                    if (LETTER.contains(next)) return false;
                } else if (NON_FINAL.contains(ch)) {
                    if (!LETTER.contains(next)) return false;
                }
            }
            return true;
        }
    }


    public static class LegalGreek extends Legal {

        boolean full;

        public LegalGreek(boolean full) {
            this.full = full;
        }

        static final char IOTA_SUBSCRIPT = '\u0345';
        static final UnicodeSet breathing = new UnicodeSet("[\\u0313\\u0314']");
        static final UnicodeSet validSecondVowel = new UnicodeSet("[\\u03C5\\u03B9\\u03A5\\u0399]");

        public static boolean isVowel(char c) {
            return "\u03B1\u03B5\u03B7\u03B9\u03BF\u03C5\u03C9\u0391\u0395\u0397\u0399\u039F\u03A5\u03A9".indexOf(c) >= 0;
        }

        public static boolean isRho(char c) {
            return "\u03C1\u03A1".indexOf(c) >= 0;
        }

        public boolean is(String sourceString) {
            try {
                String decomp = Normalizer.normalize(sourceString, Normalizer.NFD);

                // modern is simpler: don't care about anything but a grave
                if (!full) {
                    //if (sourceString.equals("\u039C\u03C0")) return false;
                    for (int i = 0; i < decomp.length(); ++i) {
                        char c = decomp.charAt(i);
                        // exclude all the accents
                        if (c == '\u0313' || c == '\u0314' || c == '\u0300' || c == '\u0302'
                            || c == '\u0342' || c == '\u0345'
                        ) return false;
                    }
                    return true;
                }

                // Legal full Greek has breathing marks IFF there is a vowel or RHO at the start
                // IF it has them, it has exactly one.
                // IF it starts with a RHO, then the breathing mark must come before the second letter.
                // IF it starts with a vowel, then it must before the third letter.
                //  it will only come after the second if of the format [vowel] [no iota subscript!] [upsilon or iota]
                // Since there are no surrogates in greek, don't worry about them

                boolean firstIsVowel = false;
                boolean firstIsRho = false;
                boolean noLetterYet = true;
                int breathingCount = 0;
                int letterCount = 0;
                //int breathingPosition = -1;

                for (int i = 0; i < decomp.length(); ++i) {
                    char c = decomp.charAt(i);
                    if (UCharacter.isLetter(c)) {
                        ++letterCount;
                        if (firstIsVowel && !validSecondVowel.contains(c) && breathingCount == 0) return false;
                        if (noLetterYet) {
                            noLetterYet = false;
                            firstIsVowel = isVowel(c);
                            firstIsRho = isRho(c);
                        }
                        if (firstIsRho && letterCount == 2 && breathingCount == 0) return false;
                    }
                    if (c == IOTA_SUBSCRIPT && firstIsVowel && breathingCount == 0) return false;
                    if (breathing.contains(c)) {
                        // breathingPosition = i;
                        ++breathingCount;
                    }
                }

                if (firstIsVowel || firstIsRho) return breathingCount == 1;
                return breathingCount == 0;
            } catch (Throwable t) {
                System.out.println(t.getClass().getName() + " " + t.getMessage());
                return true;
            }
        }
    }

    static class Test {

        PrintWriter out;

        private String transliteratorID;
        private int errorLimit = 500;
        private int errorCount = 0;
        private long pairLimit  = 1000000; // make default be 1M.
        private int density = 100;
        UnicodeSet sourceRange;
        UnicodeSet targetRange;
        UnicodeSet toSource;
        UnicodeSet toTarget;
        UnicodeSet roundtripExclusions;

        RoundTripTest log;
        Legal legalSource;
        UnicodeSet badCharacters;

        /*
         * create a test for the given script transliterator.
         */
        Test(String transliteratorID) {
            this(transliteratorID, 100);
        }

        Test(String transliteratorID, int dens) {
            this.transliteratorID = transliteratorID;
            this.density = dens;
        }

        public void setErrorLimit(int limit) {
            errorLimit = limit;
        }

        public void setPairLimit(int limit) {
            pairLimit = limit;
        }

        // Added to do better equality check.

        public static boolean isSame(String a, String b) {
            if (a.equals(b)) return true;
            if (a.equalsIgnoreCase(b) && isCamel(a)) return true;
            a = Normalizer.normalize(a, Normalizer.NFD);
            b = Normalizer.normalize(b, Normalizer.NFD);
            if (a.equals(b)) return true;
            if (a.equalsIgnoreCase(b) && isCamel(a)) return true;
            return false;
        }

        /*
        public boolean includesSome(UnicodeSet set, String a) {
            int cp;
            for (int i = 0; i < a.length(); i += UTF16.getCharCount(cp)) {
                cp = UTF16.charAt(a, i);
                if (set.contains(cp)) return true;
            }
            return false;
        }
         */

        public static boolean isCamel(String a) {
            //System.out.println("CamelTest");
            // see if string is of the form aB; e.g. lower, then upper or title
            int cp;
            boolean haveLower = false;
            for (int i = 0; i < a.length(); i += UTF16.getCharCount(cp)) {
                cp = UTF16.charAt(a, i);
                int t = UCharacter.getType(cp);
                //System.out.println("\t" + t + " " + Integer.toString(cp,16) + " " + UCharacter.getName(cp));
                switch (t) {
                case Character.UPPERCASE_LETTER:
                    if (haveLower) return true;
                    break;
                case Character.TITLECASE_LETTER:
                    if (haveLower) return true;
                    // drop through, since second letter is lower.
                case Character.LOWERCASE_LETTER:
                    haveLower = true;
                    break;
                }
            }
            //System.out.println("FALSE");
            return false;
        }

        static final UnicodeSet okAnyway = new UnicodeSet("[^[:Letter:]]");
        static final UnicodeSet neverOk = new UnicodeSet("[:Other:]");

        public void test(String srcRange, String trgtRange,
                String rdtripExclusions, RoundTripTest logger, Legal legalSrc)
        throws java.io.IOException {
            test(srcRange, trgtRange, srcRange, rdtripExclusions, logger, legalSrc);
        }

        /**
         * Will test 
         * that everything in sourceRange maps to targetRange,
         * that everything in targetRange maps to backtoSourceRange
         * that everything roundtrips from target -> source -> target, except roundtripExceptions
         */
        public void test(String srcRange, String trgtRange, String backtoSourceRange,
                String rdtripExclusions, RoundTripTest logger, Legal legalSrc)
        throws java.io.IOException {

            legalSource = legalSrc;
            sourceRange = new UnicodeSet(srcRange);
            sourceRange.removeAll(neverOk);

            targetRange = new UnicodeSet(trgtRange);
            targetRange.removeAll(neverOk);

            toSource = new UnicodeSet(backtoSourceRange);
            toSource.addAll(okAnyway);

            toTarget = new UnicodeSet(trgtRange);
            toTarget.addAll(okAnyway);

            if (rdtripExclusions != null && rdtripExclusions.length() > 0) {
                roundtripExclusions = new UnicodeSet(rdtripExclusions);
            }else{
                roundtripExclusions = new UnicodeSet(); // empty
            }

            log = logger;

            log.logln(Utility.escape("Source:  " + sourceRange));
            log.logln(Utility.escape("Target:  " + targetRange));
            log.logln(Utility.escape("Exclude: " + roundtripExclusions));
            if (log.isQuick()) log.logln("Abbreviated Test");

            badCharacters = new UnicodeSet("[:other:]");

            // make a UTF-8 output file we can read with a browser

            // note: check that every transliterator transliterates the null string correctly!

            // {dlf} reorganize so can run test in protected security environment
            //              String logFileName = "test_" + transliteratorID.replace('/', '_') + ".html";

            //              File lf = new File(logFileName);
            //              log.logln("Creating log file " + lf.getAbsoluteFile());

            //              out = new PrintWriter(new BufferedWriter(new OutputStreamWriter(
            //                        new FileOutputStream(logFileName), "UTF8"), 4*1024));

            ByteArrayOutputStream bast = new ByteArrayOutputStream();
            out = new PrintWriter(new BufferedWriter(new OutputStreamWriter(
                    bast, "UTF8"), 4*1024));
            //out.write('\uFFEF');    // BOM
            out.println("<!DOCTYPE HTML PUBLIC \"-//W3C//DTD HTML 4.0 Transitional//EN\">");
            out.println("<HTML><HEAD>");
            out.println("<META content=\"text/html; charset=utf-8\" http-equiv=Content-Type></HEAD>");
            out.println("<BODY bgcolor='#FFFFFF' style='font-family: Arial Unicode MS'>");

            try {
                test2();
            } catch (TestTruncated e) {
                out.println(e.getMessage());
            }
            out.println("</BODY></HTML>");
            out.close();

            if (errorCount > 0) {
                try {
                    File translitErrorDirectory = new File("translitErrorLogs");
                    if (!translitErrorDirectory.exists()) {
                        translitErrorDirectory.mkdir();
                    }
                    String logFileName = "translitErrorLogs/test_" + transliteratorID.replace('/', '_') + ".html";
                    File lf = new File(logFileName);
                    logger.logln("Creating log file " + lf.getAbsoluteFile());
                    FileOutputStream fos = new FileOutputStream(lf);
                    fos.write(bast.toByteArray());
                    fos.close();
                    logger.errln(transliteratorID + " errors: "
                            + errorCount + (errorCount > errorLimit ? " (at least!)" : "")
                            + ", see " + lf.getAbsoluteFile());
                }
                catch (SecurityException e) {
                    logger.errln(transliteratorID + " errors: "
                            + errorCount + (errorCount > errorLimit ? " (at least!)" : "")
                            + ", no log provided due to protected test domain");
                }
            } else {
                logger.logln(transliteratorID + " ok");
                //                  new File(logFileName).delete();
            }
        }

        // ok if at least one is not equal
        public boolean checkIrrelevants(Transliterator t, String irrelevants) {
            for (int i = 0; i < irrelevants.length(); ++i) {
                char c = irrelevants.charAt(i);
                String cs = UTF16.valueOf(c);
                String targ = t.transliterate(cs);
                if (cs.equals(targ)) return true;
            }
            return false;
        }

        AbbreviatedUnicodeSetIterator usi = new AbbreviatedUnicodeSetIterator();
        AbbreviatedUnicodeSetIterator usi2 = new AbbreviatedUnicodeSetIterator();

        Transliterator sourceToTarget;
        Transliterator targetToSource;

        public void test2() {

            sourceToTarget = Transliterator.getInstance(transliteratorID);
            targetToSource = sourceToTarget.getInverse();

            log.logln("Checking that at least one irrevant characters is not NFC'ed");
            out.println("<h3>Checking that at least one irrevant characters is not NFC'ed</h3>");

            String irrelevants = "\u2000\u2001\u2126\u212A\u212B\u2329"; // string is from NFC_NO in the UCD

            if (!checkIrrelevants(sourceToTarget, irrelevants)) {
                logFails("" + getSourceTarget(transliteratorID) + ", Must not NFC everything");
            }
            if (!checkIrrelevants(targetToSource, irrelevants)) {
                logFails("" + getTargetSource(transliteratorID) + ", irrelevants");
            }

            if (EXTRA_TESTS) {
                log.logln("Checking that toRules works");
                String rules = "";
                Transliterator sourceToTarget2;
                Transliterator targetToSource2;
                try {
                    rules = sourceToTarget.toRules(false);
                    sourceToTarget2 = Transliterator.createFromRules("s2t2", rules, Transliterator.FORWARD);
                    if (PRINT_RULES) {
                        out.println("<h3>Forward Rules:</h3><p>");
                        out.println(TestUtility.replace(rules, "\n", "\u200E<br>\n\u200E"));
                        out.println("</p>");
                    }
                    rules = targetToSource.toRules(false);
                    targetToSource2 = Transliterator.createFromRules("t2s2", rules, Transliterator.FORWARD);
                    if (PRINT_RULES) {
                        out.println("<h3>Backward Rules:</h3><p>");
                        out.println(TestUtility.replace(rules, "\n", "\u200E<br>\n\u200E"));
                        out.println("</p>");
                    }
                } catch (RuntimeException e) {
                    out.println("<h3>Broken Rules:</h3><p>");
                    out.println(TestUtility.replace(rules, "\n", "<br>\n"));
                    out.println("</p>");
                    out.flush();
                    throw e;
                }

                out.println("<h3>Roundtrip Exclusions: " + new UnicodeSet(roundtripExclusions) + "</h3>");
                out.flush();

                checkSourceTargetSource(sourceToTarget2);

                checkTargetSourceTarget(targetToSource2);
            }

            UnicodeSet failSourceTarg = new UnicodeSet();


            checkSourceTargetSingles(failSourceTarg);

            boolean quickRt = checkSourceTargetDoubles(failSourceTarg);

            UnicodeSet failTargSource = new UnicodeSet();
            UnicodeSet failRound = new UnicodeSet();

            checkTargetSourceSingles(failTargSource, failRound);
            checkTargetSourceDoubles(quickRt, failTargSource, failRound);
        }

        private void checkSourceTargetSource(Transliterator sourceToTarget2) {
            log.logln("Checking that source -> target -> source");
            out.println("<h3>Checking that source -> target -> source</h3>");

            usi.reset(sourceRange);
            while (usi.next()) {
                int c = usi.codepoint;

                String cs = UTF16.valueOf(c);
                String targ = sourceToTarget.transliterate(cs);
                String targ2 = sourceToTarget2.transliterate(cs);
                if (!targ.equals(targ2)) {
                    logToRulesFails("" + getSourceTarget(transliteratorID) + ", toRules", cs, targ, targ2);
                }
            }
        }

        private void checkTargetSourceTarget(Transliterator targetToSource2) {
            log.logln("Checking that target -> source -> target");
            out.println("<h3>Checking that target -> source -> target</h3>");
            usi.reset(targetRange);
            while (usi.next()) {
                int c = usi.codepoint;

                String cs = UTF16.valueOf(c);
                String targ = targetToSource.transliterate(cs);
                String targ2 = targetToSource2.transliterate(cs);
                if (!targ.equals(targ2)) {
                    logToRulesFails("" + getTargetSource(transliteratorID) + ", toRules", cs, targ, targ2);
                }
            }
        }

        private void checkSourceTargetSingles(UnicodeSet failSourceTarg) {
            log.logln("Checking that source characters convert to target - Singles");
            out.println("<h3>Checking that source characters convert to target - Singles</h3>");


            /*
            for (char c = 0; c < 0xFFFF; ++c) {
                if (!sourceRange.contains(c)) continue;
             */
            usi.reset(sourceRange);
            while (usi.next()) {
                int c = usi.codepoint;

                String cs = UTF16.valueOf(c);
                String targ = sourceToTarget.transliterate(cs);
                if (!toTarget.containsAll(targ)
                        || badCharacters.containsSome(targ)) {
                    String targD = Normalizer.normalize(targ, Normalizer.NFD);
                    if (!toTarget.containsAll(targD)
                            || badCharacters.containsSome(targD)) {
                        logWrongScript("" + getSourceTarget(transliteratorID) + "", cs, targ, toTarget, badCharacters);
                        failSourceTarg.add(c);
                        continue;
                    }
                }

                String cs2 = Normalizer.normalize(cs, Normalizer.NFD);
                String targ2 = sourceToTarget.transliterate(cs2);
                if (!targ.equals(targ2)) {
                    logNotCanonical("" + getSourceTarget(transliteratorID) + "", cs, targ, cs2, targ2);
                }
            }
        }

        private boolean checkSourceTargetDoubles(UnicodeSet failSourceTarg) {
            log.logln("Checking that source characters convert to target - Doubles");
            out.println("<h3>Checking that source characters convert to target - Doubles</h3>");
            long count = 0;

            /*
            for (char c = 0; c < 0xFFFF; ++c) {
                if (TestUtility.isUnassigned(c) ||
                    !sourceRange.contains(c)) continue;
                if (failSourceTarg.get(c)) continue;

             */

            UnicodeSet sourceRangeMinusFailures = new UnicodeSet(sourceRange);
            sourceRangeMinusFailures.removeAll(failSourceTarg);

            boolean quickRt = log.getInclusion() < 10;

            usi.reset(sourceRangeMinusFailures, quickRt, density);

            while (usi.next()) {
                int c = usi.codepoint;

                /*
                for (char d = 0; d < 0xFFFF; ++d) {
                    if (TestUtility.isUnassigned(d) ||
                        !sourceRange.contains(d)) continue;
                    if (failSourceTarg.get(d)) continue;
                 */
                log.logln(count + "/" + pairLimit + " Checking starting with " + UTF16.valueOf(c));
                usi2.reset(sourceRangeMinusFailures, quickRt, density);

                while (usi2.next()) {
                    int d = usi2.codepoint;
                    ++count;

                    String cs = UTF16.valueOf(c) + UTF16.valueOf(d);
                    String targ = sourceToTarget.transliterate(cs);
                    if (!toTarget.containsAll(targ)
                            || badCharacters.containsSome(targ)) {
                        String targD = Normalizer.normalize(targ, Normalizer.NFD);
                        if (!toTarget.containsAll(targD)
                                || badCharacters.containsSome(targD)) {
                            logWrongScript("" + getSourceTarget(transliteratorID) + "", cs, targ, toTarget, badCharacters);
                            continue;
                        }
                    }
                    String cs2 = Normalizer.normalize(cs, Normalizer.NFD);
                    String targ2 = sourceToTarget.transliterate(cs2);
                    if (!targ.equals(targ2)) {
                        logNotCanonical("" + getSourceTarget(transliteratorID) + "", cs, targ, cs2, targ2);
                    }
                }
            }
            return quickRt;
        }

        void checkTargetSourceSingles(UnicodeSet failTargSource, UnicodeSet failRound) {
            log.logln("Checking that target characters convert to source and back - Singles");
            out.println("<h3>Checking that target characters convert to source and back - Singles</h3>");


            /*for (char c = 0; c < 0xFFFF; ++c) {
                if (TestUtility.isUnassigned(c) ||
                    !targetRange.contains(c)) continue;
             */

            usi.reset(targetRange);
            while (usi.next()) {
                String cs;
                int c;
                if(usi.codepoint == UnicodeSetIterator.IS_STRING){
                    cs = usi.string;
                    c = UTF16.charAt(cs,0);
                }else{
                    c = usi.codepoint;
                    cs =UTF16.valueOf(c);
                }

                String targ = targetToSource.transliterate(cs);
                String reverse = sourceToTarget.transliterate(targ);

                if (!toSource.containsAll(targ)
                        || badCharacters.containsSome(targ)) {
                    String targD = Normalizer.normalize(targ, Normalizer.NFD);
                    if (!toSource.containsAll(targD)
                            || badCharacters.containsSome(targD)) {
                        /*UnicodeSet temp = */new UnicodeSet().addAll(targD);
                        logWrongScript("" + getTargetSource(transliteratorID) + "", cs, targ, toSource, badCharacters);
                        failTargSource.add(cs);
                        continue;
                    }
                }
                if (!isSame(cs, reverse) && !roundtripExclusions.contains(c)
                        && !roundtripExclusions.contains(cs)) {
                    logRoundTripFailure(cs,targetToSource.getID(), targ,sourceToTarget.getID(), reverse);
                    failRound.add(c);
                    continue;
                }
                String targ2 = Normalizer.normalize(targ, Normalizer.NFD);
                String reverse2 = sourceToTarget.transliterate(targ2);
                if (!reverse.equals(reverse2)) {
                    logNotCanonical("" + getTargetSource(transliteratorID) + "", targ, reverse, targ2, reverse2);
                }
            }

        }

        private void checkTargetSourceDoubles(boolean quickRt, UnicodeSet failTargSource,
                UnicodeSet failRound) {
            log.logln("Checking that target characters convert to source and back - Doubles");
            out.println("<h3>Checking that target characters convert to source and back - Doubles</h3>");
            long count = 0;

            UnicodeSet targetRangeMinusFailures = new UnicodeSet(targetRange);
            targetRangeMinusFailures.removeAll(failTargSource);
            targetRangeMinusFailures.removeAll(failRound);

            //char[] buf = new char[4]; // maximum we can have with 2 code points
            /*
            for (char c = 0; c < 0xFFFF; ++c) {
                if (TestUtility.isUnassigned(c) ||
                    !targetRange.contains(c)) continue;
             */
            
            usi.reset(targetRangeMinusFailures, quickRt, density);

            while (usi.next()) {
                int c = usi.codepoint;

                //log.log(TestUtility.hex(c));

                /*
                for (char d = 0; d < 0xFFFF; ++d) {
                    if (TestUtility.isUnassigned(d) ||
                        !targetRange.contains(d)) continue;
                 */
                log.logln(count + "/" + pairLimit + " Checking starting with " + UTF16.valueOf(c));
                usi2.reset(targetRangeMinusFailures, quickRt, density);

                while (usi2.next()) {
                    
                    int d = usi2.codepoint;
                    if (d < 0) break;
                    
                    if (++count > pairLimit) {
                        throw new TestTruncated("Test truncated at " + pairLimit);
                    }

                    String cs = UTF16.valueOf(c) + UTF16.valueOf(d);
                    String targ = targetToSource.transliterate(cs);
                    String reverse = sourceToTarget.transliterate(targ);

                    if (!toSource.containsAll(targ) /*&& !failTargSource.contains(c) && !failTargSource.contains(d)*/
                            || badCharacters.containsSome(targ)) {
                        String targD = Normalizer.normalize(targ, Normalizer.NFD);
                        if (!toSource.containsAll(targD) /*&& !failTargSource.contains(c) && !failTargSource.contains(d)*/
                                || badCharacters.containsSome(targD)) {
                            logWrongScript("" + getTargetSource(transliteratorID) + "", cs, targ, toSource, badCharacters);
                            continue;
                        }
                    }
                    if (!isSame(cs, reverse) /*&& !failRound.contains(c) && !failRound.contains(d)*/
                            && !roundtripExclusions.contains(c)
                            && !roundtripExclusions.contains(d)
                            && !roundtripExclusions.contains(cs)) {
                        logRoundTripFailure(cs,targetToSource.getID(), targ,sourceToTarget.getID(), reverse);
                        continue;
                    }
                    String targ2 = Normalizer.normalize(targ, Normalizer.NFD);
                    String reverse2 = sourceToTarget.transliterate(targ2);
                    if (!reverse.equals(reverse2)) {
                        logNotCanonical("" + getTargetSource(transliteratorID) + "", targ, reverse, targ2, reverse2);
                    }
                }
            }
            log.logln("");
        }

        /**
         * @param transliteratorID2
         * @return
         */
        private String getTargetSource(String transliteratorID2) {
            return "Target-Source [" + transliteratorID2 + "]";
        }

        /**
         * @param transliteratorID2
         * @return
         */
        private String getSourceTarget(String transliteratorID2) {
            return "Source-Target [" + transliteratorID2 + "]";
        }

        final String info(String s) {
            StringBuffer result = new StringBuffer();
            result.append("\u200E").append(s).append("\u200E (").append(TestUtility.hex(s)).append("/");
            if (false) { // append age, as a check
                int cp = 0;    
                for (int i = 0; i < s.length(); i += UTF16.getCharCount(cp)) {
                    cp = UTF16.charAt(s, i);
                    if (i > 0) result.append(", ");
                    result.append(UCharacter.getAge(cp));
                }
            }
            result.append(")");
            return result.toString();
        }

        final void logWrongScript(String label, String from, String to, 
                UnicodeSet shouldContainAll, UnicodeSet shouldNotContainAny) {
            if (++errorCount > errorLimit) {
                throw new TestTruncated("Test truncated; too many failures");
            }
            String toD = Normalizer.normalize(to, Normalizer.NFD);
            UnicodeSet temp = new UnicodeSet().addAll(toD);
            UnicodeSet bad = new UnicodeSet(shouldNotContainAny).retainAll(temp)
            .addAll(new UnicodeSet(temp).removeAll(shouldContainAll));

            out.println("<br>Fail " + label + ": " +
                    info(from) + " => " + info(to) + " " + bad
            );
        }

        final void logNotCanonical(String label, String from, String to, String fromCan, String toCan) {
            if (++errorCount > errorLimit) {
                throw new TestTruncated("Test truncated; too many failures");
            }
            out.println("<br>Fail (can.equiv) " + label + ": " +
                    info(from) + " => " + info(to) +
                    " -- " +
                    info(fromCan) + " => " + info(toCan) + ")"
            );
        }

        final void logFails(String label) {
            if (++errorCount > errorLimit) {
                throw new TestTruncated("Test truncated; too many failures");
            }
            out.println("<br>Fail (can.equiv)" + label);
        }

        final void logToRulesFails(String label, String from, String to, String toCan) {
            if (++errorCount > errorLimit) {
                throw new TestTruncated("Test truncated; too many failures");
            }
            out.println("<br>Fail " + label + ": " +
                    info(from) + " => " + info(to) + ", " + info(toCan)
            );
        }

        final void logRoundTripFailure(String from,String toID, String to,String backID, String back) {
            if (!legalSource.is(from)) return; // skip illegals

            if (++errorCount > errorLimit) {
                throw new TestTruncated("Test truncated; too many failures");
            }
            out.println("<br>Fail Roundtrip: " +
                    info(from) + " "+toID+" => " + info(to) + " " + backID+" => " + info(back)
            );
        }

        /*
         * Characters to filter for source-target mapping completeness
         * Typically is base alphabet, minus extended characters
         * Default is ASCII letters for Latin
         */
        /*
        public boolean isSource(char c) {
            if (!sourceRange.contains(c)) return false;
            return true;
        }
         */

        /*
         * Characters to check for target back to source mapping.
         * Typically the same as the target script, plus punctuation
         */
        /*
        public boolean isReceivingSource(char c) {
            if (!targetRange.contains(c)) return false;
            return true;
        }
         */
        /*
         * Characters to filter for target-source mapping
         * Typically is base alphabet, minus extended characters
         */
        /*
        public boolean isTarget(char c) {
            byte script = TestUtility.getScript(c);
            if (script != targetScript) return false;
            if (!TestUtility.isLetter(c)) return false;
            if (targetRange != null && !targetRange.contains(c)) return false;
            return true;
        }
         */

        /*
         * Characters to check for target-source mapping
         * Typically the same as the source script, plus punctuation
         */
        /*
        public boolean isReceivingTarget(char c) {
            byte script = TestUtility.getScript(c);
            return (script == targetScript || script == TestUtility.COMMON_SCRIPT);
        }

        final boolean isSource(String s) {
            for (int i = 0; i < s.length(); ++i) {
                if (!isSource(s.charAt(i))) return false;
            }
            return true;
        }

        final boolean isTarget(String s) {
            for (int i = 0; i < s.length(); ++i) {
                if (!isTarget(s.charAt(i))) return false;
            }
            return true;
        }

        final boolean isReceivingSource(String s) {
            for (int i = 0; i < s.length(); ++i) {
                if (!isReceivingSource(s.charAt(i))) return false;
            }
            return true;
        }

        final boolean isReceivingTarget(String s) {
            for (int i = 0; i < s.length(); ++i) {
                if (!isReceivingTarget(s.charAt(i))) return false;
            }
            return true;
        }
         */

        static class TestTruncated extends RuntimeException {
            /**
             * For serialization
             */
            private static final long serialVersionUID = 3361828190488168323L;

            TestTruncated(String msg) {
                super(msg);
            }
        }
    }

    //  static class TestHangul extends Test {
    //      TestHangul () {
    //          super("Jamo-Hangul", TestUtility.JAMO_SCRIPT, TestUtility.HANGUL_SCRIPT);
    //      }
    //
    //      public boolean isSource(char c) {
    //          if (0x1113 <= c && c <= 0x1160) return false;
    //          if (0x1176 <= c && c <= 0x11F9) return false;
    //          if (0x3131 <= c && c <= 0x318E) return false;
    //          return super.isSource(c);
    //      }
    //  }


}