src/test/java/de/ids_mannheim/korap/index/TestMatchIndex.java

package de.ids_mannheim.korap.index;

import static org.junit.Assert.assertEquals;
import static org.junit.Assert.fail;

import java.io.IOException;

import org.apache.lucene.index.Term;
import org.apache.lucene.search.spans.SpanOrQuery;
import org.apache.lucene.search.spans.SpanQuery;
import org.apache.lucene.search.spans.SpanTermQuery;
import org.junit.Ignore;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.junit.runners.JUnit4;

import de.ids_mannheim.korap.KrillCollection;
import de.ids_mannheim.korap.KrillIndex;
import de.ids_mannheim.korap.query.QueryBuilder;
import de.ids_mannheim.korap.query.SpanClassQuery;
import de.ids_mannheim.korap.query.SpanElementQuery;
import de.ids_mannheim.korap.query.SpanFocusQuery;
import de.ids_mannheim.korap.query.SpanNextQuery;
import de.ids_mannheim.korap.query.SpanWithinQuery;
import de.ids_mannheim.korap.response.Match;
import de.ids_mannheim.korap.response.Result;

// mvn -Dtest=TestWithinIndex#indexExample1 test

// match is focus and split

@RunWith(JUnit4.class)
public class TestMatchIndex {
    @Test
    public void testEmbeddedClassQuery () throws IOException {
        KrillIndex ki = new KrillIndex();

        // abcabcabac
        FieldDocument fd = new FieldDocument();
        fd.addTV("base", "abcabcabac", "[(0-1)s:a|i:a|_0#0-1|-:t$<i>10]"
                + "[(1-2)s:b|i:b|_1#1-2]" + "[(2-3)s:c|i:c|_2#2-3]"
                + "[(3-4)s:a|i:a|_3#3-4]" + "[(4-5)s:b|i:b|_4#4-5]"
                + "[(5-6)s:c|i:c|_5#5-6]" + "[(6-7)s:a|i:a|_6#6-7]"
                + "[(7-8)s:b|i:b|_7#7-8]" + "[(8-9)s:a|i:a|_8#8-9]"
                + "[(9-10)s:c|i:c|_9#9-10]");
        ki.addDoc(fd);

        ki.commit();

        SpanQuery sq;
        Result kr;

        sq = new SpanFocusQuery(new SpanClassQuery(new SpanNextQuery(
                new SpanClassQuery(new SpanTermQuery(new Term("base", "s:b")),
                        (byte) 1), new SpanClassQuery(new SpanTermQuery(
                        new Term("base", "s:c")), (byte) 2)), (byte) 3),
                (byte) 3);

        kr = ki.search(sq, (short) 10);

        assertEquals("totalResults", kr.getTotalResults(), 2);
        assertEquals("StartPos (0)", 1, kr.getMatch(0).startPos);
        assertEquals("EndPos (0)", 3, kr.getMatch(0).endPos);
        assertEquals("SnippetBrackets (0)", "a[{3:{1:b}{2:c}}]abcaba ...", kr
                .getMatch(0).getSnippetBrackets());
        assertEquals("StartPos (1)", 4, kr.getMatch(1).startPos);
        assertEquals("EndPos (1)", 6, kr.getMatch(1).endPos);
        assertEquals("SnippetBrackets (1)", "abca[{3:{1:b}{2:c}}]abac", kr
                .getMatch(1).getSnippetBrackets());

        assertEquals("Document count", 1, ki.numberOf("base", "documents"));
        assertEquals("Token count", 10, ki.numberOf("base", "t"));

    }


    @Test
    public void indexExample1 () throws IOException {
        KrillIndex ki = new KrillIndex();

        // abcabcabac
        FieldDocument fd = new FieldDocument();
        fd.addTV("base", "abcabcabac", "[(0-1)s:a|i:a|_0#0-1|-:t$<i>10]"
                + "[(1-2)s:b|i:b|_1#1-2]" + "[(2-3)s:c|i:c|_2#2-3]"
                + "[(3-4)s:a|i:a|_3#3-4]" + "[(4-5)s:b|i:b|_4#4-5]"
                + "[(5-6)s:c|i:c|_5#5-6]" + "[(6-7)s:a|i:a|_6#6-7]"
                + "[(7-8)s:b|i:b|_7#7-8]" + "[(8-9)s:a|i:a|_8#8-9]"
                + "[(9-10)s:c|i:c|_9#9-10]");
        ki.addDoc(fd);

        ki.commit();

        SpanQuery sq;
        Result kr;

        sq = new SpanNextQuery(new SpanTermQuery(new Term("base", "s:b")),
                new SpanClassQuery(new SpanTermQuery(new Term("base", "s:a"))));
        kr = ki.search(sq, (short) 10);

        assertEquals("totalResults", kr.getTotalResults(), 1);
        assertEquals("StartPos (0)", 7, kr.getMatch(0).startPos);
        assertEquals("EndPos (0)", 9, kr.getMatch(0).endPos);
        assertEquals("SnippetBrackets (0)", "... bcabca[b{1:a}]c",
                kr.getMatch(0).getSnippetBrackets());

        assertEquals(
                "Test no 'more' context",
                "<span class=\"context-left\"><span class=\"more\"></span>bcabca</span><mark>b<mark class=\"class-1 level-0\">a</mark></mark><span class=\"context-right\">c</span>",
                kr.getMatch(0).getSnippetHTML());
        sq = new SpanFocusQuery(new SpanNextQuery(new SpanTermQuery(new Term(
                "base", "s:b")), new SpanClassQuery(new SpanTermQuery(new Term(
                "base", "s:a")))));
        kr = ki.search(sq, (short) 10);

        assertEquals("totalResults", kr.getTotalResults(), 1);
        assertEquals("StartPos (0)", 8, kr.getMatch(0).startPos);
        assertEquals("EndPos (0)", 9, kr.getMatch(0).endPos);
        assertEquals("SnippetBrackets (0)", "... cabcab[{1:a}]c", kr
                .getMatch(0).getSnippetBrackets());
        sq = new SpanFocusQuery(new SpanNextQuery(new SpanClassQuery(
                new SpanTermQuery(new Term("base", "s:a")), (byte) 2),
                new SpanClassQuery(new SpanTermQuery(new Term("base", "s:b")),
                        (byte) 3)), (byte) 3);

        kr = ki.search(sq, (short) 10);

        assertEquals("totalResults", kr.getTotalResults(), 3);
        assertEquals("StartPos (0)", 1, kr.getMatch(0).startPos);
        assertEquals("EndPos (0)", 2, kr.getMatch(0).endPos);
        assertEquals("SnippetBrackets (0)", "a[{3:b}]cabcab ...", kr
                .getMatch(0).getSnippetBrackets());


        assertEquals(
                "<span class=\"context-left\">a</span><mark><mark class=\"class-3 level-0\">b</mark></mark><span class=\"context-right\">cabcab<span class=\"more\"></span></span>",
                kr.getMatch(0).getSnippetHTML());

        assertEquals("StartPos (1)", 4, kr.getMatch(1).startPos);
        assertEquals("EndPos (1)", 5, kr.getMatch(1).endPos);
        assertEquals("SnippetBrackets (1)", "abca[{3:b}]cabac", kr.getMatch(1)
                .getSnippetBrackets());

        assertEquals(
                "<span class=\"context-left\">abca</span><mark><mark class=\"class-3 level-0\">b</mark></mark><span class=\"context-right\">cabac</span>",
                kr.getMatch(1).getSnippetHTML());

        assertEquals("StartPos (2)", 7, kr.getMatch(2).startPos);
        assertEquals("EndPos (2)", 8, kr.getMatch(2).endPos);
        assertEquals("SnippetBrackets (2)", "... bcabca[{3:b}]ac",
                kr.getMatch(2).getSnippetBrackets());



        // abcabcabac
        sq = new SpanFocusQuery(
                new SpanNextQuery(new SpanTermQuery(new Term("base", "s:a")),
                        new SpanClassQuery(new SpanNextQuery(new SpanTermQuery(
                                new Term("base", "s:b")), new SpanClassQuery(
                                new SpanTermQuery(new Term("base", "s:a")))),
                                (byte) 2)), (byte) 2);

        kr = ki.search(sq, (short) 10);

        assertEquals("totalResults", kr.getTotalResults(), 1);
        assertEquals("SnippetBrackets (0)", "... bcabca[{2:b{1:a}}]c", kr
                .getMatch(0).getSnippetBrackets());

        assertEquals(
                "SnippetHTML (0) 1",
                "<span class=\"context-left\"><span class=\"more\"></span>bcabca</span><mark><mark class=\"class-2 level-0\">b<mark class=\"class-1 level-1\">a</mark></mark></mark><span class=\"context-right\">c</span>",
                kr.getMatch(0).getSnippetHTML());

        // Offset tokens
        kr = ki.search(sq, 0, (short) 10, true, (short) 2, true, (short) 2);
        assertEquals("totalResults", kr.getTotalResults(), 1);
        assertEquals("SnippetBrackets (0)", "... ca[{2:b{1:a}}]c",
                kr.getMatch(0).getSnippetBrackets());



        // Offset Characters
        kr = ki.search(sq, 0, (short) 10, false, (short) 1, false, (short) 0);
        assertEquals("totalResults", kr.getTotalResults(), 1);
        assertEquals("SnippetBrackets (0)", "... a[{2:b{1:a}}] ...", kr
                .getMatch(0).getSnippetBrackets());

        assertEquals(
                "SnippetHTML (0) 2",
                "<span class=\"context-left\"><span class=\"more\"></span>a</span><mark><mark class=\"class-2 level-0\">b<mark class=\"class-1 level-1\">a</mark></mark></mark><span class=\"context-right\"><span class=\"more\"></span></span>",
                kr.getMatch(0).getSnippetHTML());



        // Don't match the expected class!
        sq = new SpanFocusQuery(new SpanNextQuery(new SpanClassQuery(
                new SpanTermQuery(new Term("base", "s:b")), (byte) 1),
                new SpanClassQuery(new SpanTermQuery(new Term("base", "s:c")),
                        (byte) 2)), (byte) 3);

        kr = ki.search(sq, (short) 10);

        assertEquals("totalResults", kr.getTotalResults(), 0);

        sq = new SpanFocusQuery(new SpanNextQuery(new SpanTermQuery(new Term(
                "base", "s:a")), new SpanClassQuery(new SpanNextQuery(
                new SpanTermQuery(new Term("base", "s:b")), new SpanTermQuery(
                        new Term("base", "s:c"))))));

        kr = ki.search(sq, (short) 2);

        assertEquals("totalResults", kr.getTotalResults(), 2);
        assertEquals("StartPos (0)", 1, kr.getMatch(0).startPos);
        assertEquals("EndPos (0)", 3, kr.getMatch(0).endPos);
        assertEquals("SnippetBrackets (0)", "a[{1:bc}]abcaba ...",
                kr.getMatch(0).getSnippetBrackets());
        assertEquals("StartPos (1)", 4, kr.getMatch(1).startPos);
        assertEquals("EndPos (1)", 6, kr.getMatch(1).endPos);
        assertEquals("SnippetBrackets (1)", "abca[{1:bc}]abac", kr.getMatch(1)
                .getSnippetBrackets());

        assertEquals(1, ki.numberOf("base", "documents"));
        assertEquals(10, ki.numberOf("base", "t"));
    };


    @Test
    public void indexExample2 () throws IOException {
        KrillIndex ki = new KrillIndex();

        // abcabcabac
        FieldDocument fd = new FieldDocument();
        fd.addTV("base", "abcabcabac", "[(0-1)s:a|i:a|_0#0-1|-:t$<i>10]"
                + "[(1-2)s:b|i:b|_1#1-2]" + "[(2-3)s:c|i:c|_2#2-3]"
                + "[(3-4)s:a|i:a|_3#3-4]" + "[(4-5)s:b|i:b|_4#4-5]"
                + "[(5-6)s:c|i:c|_5#5-6]" + "[(6-7)s:a|i:a|_6#6-7]"
                + "[(7-8)s:b|i:b|_7#7-8]" + "[(8-9)s:a|i:a|_8#8-9]"
                + "[(9-10)s:c|i:c|_9#9-10]");
        ki.addDoc(fd);
        ki.commit();

        SpanQuery sq;
        Result kr;

        // No contexts:
        sq = new SpanOrQuery(new SpanTermQuery(new Term("base", "s:a")),
                new SpanTermQuery(new Term("base", "s:c")));
        kr = ki.search(sq, (short) 20);

        assertEquals("totalResults", kr.getTotalResults(), 7);
        assertEquals(
                "SnippetBrackets (0)",
                "<span class=\"context-left\"></span><mark>a</mark><span class=\"context-right\">bcabca<span class=\"more\"></span></span>",
                kr.getMatch(0).getSnippetHTML());
        assertEquals("SnippetBrackets (0)", "[a]bcabca ...", kr.getMatch(0)
                .getSnippetBrackets());

        assertEquals("SnippetBrackets (1)", "ab[c]abcaba ...", kr.getMatch(1)
                .getSnippetBrackets());
        assertEquals(
                "SnippetBrackets (1)",
                "<span class=\"context-left\">ab</span><mark>c</mark><span class=\"context-right\">abcaba<span class=\"more\"></span></span>",
                kr.getMatch(1).getSnippetHTML());

        assertEquals("SnippetBrackets (6)", "... abcaba[c]", kr.getMatch(6)
                .getSnippetBrackets());
        assertEquals(
                "SnippetBrackets (6)",
                "<span class=\"context-left\"><span class=\"more\"></span>abcaba</span><mark>c</mark><span class=\"context-right\"></span>",
                kr.getMatch(6).getSnippetHTML());

        kr = ki.search(sq, 0, (short) 20, true, (short) 0, true, (short) 0);

        assertEquals("totalResults", kr.getTotalResults(), 7);
        assertEquals("SnippetBrackets (0)", "[a] ...", kr.getMatch(0)
                .getSnippetBrackets());
        assertEquals(
                "SnippetHTML (0)",
                "<span class=\"context-left\"></span><mark>a</mark><span class=\"context-right\"><span class=\"more\"></span></span>",
                kr.getMatch(0).getSnippetHTML());

        assertEquals("SnippetBrackets (1)", "... [c] ...", kr.getMatch(1)
                .getSnippetBrackets());
        assertEquals(
                "SnippetHTML (1)",
                "<span class=\"context-left\"><span class=\"more\"></span></span><mark>c</mark><span class=\"context-right\"><span class=\"more\"></span></span>",
                kr.getMatch(1).getSnippetHTML());

        assertEquals("SnippetBrackets (6)", "... [c]", kr.getMatch(6)
                .getSnippetBrackets());
        assertEquals(
                "SnippetBrackets (6)",
                "<span class=\"context-left\"><span class=\"more\"></span></span><mark>c</mark><span class=\"context-right\"></span>",
                kr.getMatch(6).getSnippetHTML());
    };


    @Test
    public void indexExample3 () throws Exception {
        KrillIndex ki = new KrillIndex();

        // abcabcabac
        FieldDocument fd = new FieldDocument();
        fd.addTV("base", "abcabcabac", "[(0-1)s:a|i:a|_0#0-1|-:t$<i>10]"
                + "[(1-2)s:b|i:b|_1#1-2]" + "[(2-3)s:c|i:c|_2#2-3]"
                + "[(3-4)s:a|i:a|_3#3-4]" + "[(4-5)s:b|i:b|_4#4-5]"
                + "[(5-6)s:c|i:c|_5#5-6]" + "[(6-7)s:a|i:a|_6#6-7]"
                + "[(7-8)s:b|i:b|_7#7-8]" + "[(8-9)s:a|i:a|_8#8-9]"
                + "[(9-10)s:c|i:c|_9#9-10]");
        ki.addDoc(fd);
        ki.commit();

        Result kr;

        QueryBuilder kq = new QueryBuilder("base");

        SpanQuery sq = kq._(
                1,
                kq.seq(kq.seg("s:b")).append(kq.seg("s:a"))
                        .append(kq._(2, kq.seg("s:c")))).toQuery();

        kr = ki.search(sq, 0, (short) 20, true, (short) 2, true, (short) 5);

        assertEquals("totalResults", kr.getTotalResults(), 1);
        assertEquals("SnippetBrackets (0)", "... ca[{1:ba{2:c}}]",
                kr.getMatch(0).getSnippetBrackets());
    };


    @Test
    public void indexExampleExtend () throws IOException {
        KrillIndex ki = new KrillIndex();

        // abcabcabac
        FieldDocument fd = new FieldDocument();
        fd.addTV("base", "abcabcabac", "[(0-1)s:a|i:a|_0#0-1|-:t$<i>10]"
                + "[(1-2)s:b|i:b|_1#1-2]" + "[(2-3)s:c|i:c|_2#2-3]"
                + "[(3-4)s:a|i:a|_3#3-4]" + "[(4-5)s:b|i:b|_4#4-5]"
                + "[(5-6)s:c|i:c|_5#5-6]" + "[(6-7)s:a|i:a|_6#6-7]"
                + "[(7-8)s:b|i:b|_7#7-8]" + "[(8-9)s:a|i:a|_8#8-9]"
                + "[(9-10)s:c|i:c|_9#9-10]");
        ki.addDoc(fd);
        ki.commit();

        SpanQuery sq;
        Result kr;

        sq = new SpanFocusQuery(new SpanNextQuery(new SpanClassQuery(
                new SpanTermQuery(new Term("base", "s:a")), (byte) 2),
                new SpanClassQuery(new SpanTermQuery(new Term("base", "s:b")),
                        (byte) 3)), (byte) 3);

        kr = ki.search(sq, (short) 10);

        assertEquals("totalResults", kr.getTotalResults(), 3);

        Match km = kr.getMatch(0);
        assertEquals("StartPos (0)", 1, km.startPos);
        assertEquals("EndPos (0)", 2, km.endPos);
        assertEquals("SnippetBrackets (0)", "a[{3:b}]cabcab ...",
                km.getSnippetBrackets());

        sq = new SpanFocusQuery(new SpanFocusQuery(new SpanNextQuery(
                new SpanClassQuery(new SpanTermQuery(new Term("base", "s:a")),
                        (byte) 2), new SpanClassQuery(new SpanTermQuery(
                        new Term("base", "s:b")), (byte) 3)), (byte) 3),
                (byte) 2);

        kr = ki.search(sq, (short) 10);

        km = kr.getMatch(0);
        assertEquals("StartPos (0)", 0, km.startPos);
        assertEquals("EndPos (0)", 1, km.endPos);
        assertEquals("SnippetBrackets (0)", "[{2:a}]bcabca ...",
                km.getSnippetBrackets());

        // TODO: Check ID
    };


    @Test
    public void indexExampleFocusWithSpan () throws IOException {
        KrillIndex ki = new KrillIndex();

        // abcabcabac
        FieldDocument fd = new FieldDocument();
        fd.addTV("base", "abcabcabac", "[(0-1)s:a|i:a|_0#0-1|-:t$<i>10]"
                + "[(1-2)s:b|i:b|_1#1-2|<>:s#1-5$<i>5]"
                + "[(2-3)s:c|i:c|_2#2-3|<>:s#2-7$<i>7]"
                + "[(3-4)s:a|i:a|_3#3-4]" + "[(4-5)s:b|i:b|_4#4-5]"
                + "[(5-6)s:c|i:c|_5#5-6]" + "[(6-7)s:a|i:a|_6#6-7]"
                + "[(7-8)s:b|i:b|_7#7-8]" + "[(8-9)s:a|i:a|_8#8-9]"
                + "[(9-10)s:c|i:c|_9#9-10]");
        ki.addDoc(fd);
        ki.commit();

        SpanQuery sq;
        Result kr;

        //        sq = new SpanWithinQuery(new SpanClassQuery(new SpanElementQuery(
        //                "base", "s"), (byte) 2), new SpanClassQuery(new SpanTermQuery(
        //                new Term("base", "s:b")), (byte) 3));
        //
        //        kr = ki.search(sq, (short) 10);
        //        assertEquals(kr.getSerialQuery(),
        //                "spanContain({2: <base:s />}, {3: base:s:b})");
        //        assertEquals(kr.getMatch(0).getSnippetBrackets(),
        //                "a[{2:{3:b}cab}]cabac");

        sq = new SpanFocusQuery(new SpanWithinQuery(new SpanClassQuery(
                new SpanElementQuery("base", "s"), (byte) 2),
                new SpanClassQuery(new SpanTermQuery(new Term("base", "s:b")),
                        (byte) 3)), (byte) 3);

        kr = ki.search(sq, (short) 10);
        assertEquals(kr.getSerialQuery(),
                "focus(3: spanContain({2: <base:s />}, {3: base:s:b}))");
        assertEquals(kr.getMatch(0).getSnippetBrackets(), "a[{3:b}]cabcab ...");
    };


    @Ignore
    public void indexExampleFocusWithSkip () throws IOException {
        KrillIndex ki = new KrillIndex();

        // abcabcabac
        FieldDocument fd = new FieldDocument();
        fd.addTV("base", "abcabcabac",
        // The payload should be ignored
                "[(0-1)s:a|i:a|_0#0-1|-:t$<i>10]"
                        + // |<>:p#0-10<i>9]" +
                        "[(1-2)s:b|i:b|_1#1-2|<>:s#1-5$<i>5]"
                        + "[(2-3)s:c|i:c|_2#2-3|<>:s#2-7$<i>7]"
                        + "[(3-4)s:a|i:a|_3#3-4]" + "[(4-5)s:b|i:b|_4#4-5]"
                        + "[(5-6)s:c|i:c|_5#5-6]" + "[(6-7)s:a|i:a|_6#6-7]"
                        + "[(7-8)s:b|i:b|_7#7-8]" + "[(8-9)s:a|i:a|_8#8-9]"
                        + "[(9-10)s:c|i:c|_9#9-10]");
        ki.addDoc(fd);
        fd = new FieldDocument();
        fd.addTV("base", "gbcgbcgbgc",
                "[(0-1)s:g|i:g|_0#0-1|-:t$<i>10|<>:p#0-10$<i>9]"
                        + "[(1-2)s:b|i:b|_1#1-2|<>:s#1-5$<i>5]"
                        + "[(2-3)s:c|i:c|_2#2-3|<>:s#2-7$<i>7]"
                        + "[(3-4)s:g|i:g|_3#3-4]" + "[(4-5)s:b|i:b|_4#4-5]"
                        + "[(5-6)s:c|i:c|_5#5-6]" + "[(6-7)s:g|i:g|_6#6-7]"
                        + "[(7-8)s:b|i:b|_7#7-8]" + "[(8-9)s:g|i:g|_8#8-9]"
                        + "[(9-10)s:c|i:c|_9#9-10]");
        ki.addDoc(fd);
        fd = new FieldDocument();
        fd.addTV("base", "gbcgbcgbgc", "[(0-1)s:g|i:g|_0#0-1|-:t$<i>10]"
                + "[(1-2)s:b|i:b|_1#1-2]" + "[(2-3)s:c|i:c|_2#2-3]"
                + "[(3-4)s:g|i:g|_3#3-4]" + "[(4-5)s:b|i:b|_4#4-5]"
                + "[(5-6)s:c|i:c|_5#5-6]" + "[(6-7)s:g|i:g|_6#6-7]"
                + "[(7-8)s:b|i:b|_7#7-8]" + "[(8-9)s:g|i:g|_8#8-9]"
                + "[(9-10)s:c|i:c|_9#9-10]");
        ki.addDoc(fd);
        fd = new FieldDocument();
        // contains(<p>, focus(3: contains({2:<s>}, {3:a})))
        fd.addTV("base", "acabcabac",
                "[(0-1)s:a|i:a|_0#0-1|-:t$<i>10|<>:p#0-9$<i>8]"
                        + "[(1-2)s:b|i:b|_1#1-2|<>:s#1-5$<i>5]"
                        + "[(2-3)s:a|i:a|_2#2-3|<>:s#2-7$<i>7]"
                        + "[(3-4)s:b|i:b|_3#3-4]" + "[(4-5)s:c|i:c|_4#4-5]"
                        + "[(5-6)s:a|i:a|_5#5-6]" + "[(6-7)s:b|i:b|_6#6-7]"
                        + "[(7-8)s:a|i:a|_7#7-8]" + "[(8-9)s:c|i:c|_8#8-9]");
        ki.addDoc(fd);
        ki.commit();

        SpanQuery sq;
        Result kr;
        KrillCollection kc = new KrillCollection(ki);

        assertEquals("Documents", 4, kc.numberOf("documents"));

        // within(<p>, focus(3:within({2:<s>}, {3:a})))
        sq = new SpanWithinQuery(new SpanElementQuery("base", "p"),
                new SpanFocusQuery(new SpanWithinQuery(new SpanClassQuery(
                        new SpanElementQuery("base", "s"), (byte) 2),
                        new SpanClassQuery(new SpanTermQuery(new Term("base",
                                "s:a")), (byte) 3)), (byte) 3));

        fail("Skipping may go horribly wrong! (Known issue)");

        kr = kc.search(sq);
        //        System.err.println(kr.getOverview());


        assertEquals(
                kr.getSerialQuery(),
                "spanContain(<base:p />, focus(3: spanContain({2: <base:s />}, {3: base:s:a})))");
        assertEquals(12, kr.getTotalResults());
        assertEquals("[a{2:bc{3:a}b}cabac]", kr.getMatch(0)
                .getSnippetBrackets());
        assertEquals("[ab{2:c{3:a}bcab}ac]", kr.getMatch(1)
                .getSnippetBrackets());
        assertEquals("[ab{2:cabc{3:a}}bac]", kr.getMatch(2)
                .getSnippetBrackets());
    };

};