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// Copyright Vespa.ai. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
package com.yahoo.prelude.semantics.test;
import java.util.ArrayList;
import java.util.List;
import com.yahoo.component.chain.Chain;
import static org.junit.jupiter.api.Assertions.assertEquals;
import com.yahoo.language.simple.SimpleLinguistics;
import com.yahoo.search.Query;
import com.yahoo.prelude.semantics.RuleImporter;
import com.yahoo.prelude.semantics.SemanticSearcher;
import com.yahoo.search.Result;
import com.yahoo.search.Searcher;
import com.yahoo.search.rendering.RendererRegistry;
import com.yahoo.search.searchchain.Execution;
import com.yahoo.search.test.QueryTestCase;
import org.junit.jupiter.api.Test;
/**
* @author bratseth
*/
@SuppressWarnings("deprecation")
public class BacktrackingTestCase {
private static final String root="src/test/java/com/yahoo/prelude/semantics/test/rulebases/";
private static final SemanticSearcher searcher;
static {
try {
searcher = new SemanticSearcher(new RuleImporter(new SimpleLinguistics()).importFile(root + "backtrackingrules.sr"));
}
catch (Exception e) {
throw new RuntimeException(e);
}
}
protected void assertSemantics(String result,String input) {
assertSemantics(result,input,0);
}
protected void assertSemantics(String result,String input,int tracelevel) {
Query query=new Query("?query=" + QueryTestCase.httpEncode(input) + "&tracelevel=0&tracelevel.rules=" + tracelevel);
doSearch(searcher, query, 0,10);
assertEquals(result, query.getModel().getQueryTree().getRoot().toString());
}
// Literal terms ---------------
@Test
void testMultilevelBacktrackingLiteralTerms() {
assertSemantics("WEAKAND(100) replaced", "word1 word2 word5 word8");
}
@Test
void testMultilevelBacktrackingWontReorderOthertermsLiteralTerms() {
assertSemantics("WEAKAND(100) other1 other2 other3 replaced", "other1 other2 other3 word1 word2 word5 word8");
}
@Test
void testMultilevelBacktrackingWithMulticompoundMatchLiteralTerms() {
assertSemantics("WEAKAND(100) other1 other2 other3 replaced", "other1 other2 other3 word1 word2 word5-word8");
}
@Test
void testMultilevelBacktrackingPreservePartialMatchBeforeLiteralTerms() {
assertSemantics("WEAKAND(100) word1 word2 word5 replaced", "word1 word2 word5 word1 word2 word5 word8");
}
@Test
void testMultilevelBacktrackingPreservePartialMatchAfterLiteralTerms() {
assertSemantics("WEAKAND(100) replaced word1 word2 word5", "word1 word2 word5 word8 word1 word2 word5 ");
}
// reference terms ---------------
@Test
void testMultilevelBacktrackingReferenceTerms() {
assertSemantics("WEAKAND(100) ref:ref1 ref:ref2 ref:ref5 ref:ref8", "ref1 ref2 ref5 ref8");
}
@Test
void testMultilevelBacktrackingPreservePartialMatchBeforeReferenceTerms() {
assertSemantics("WEAKAND(100) ref1 ref2 ref5 ref:ref1 ref:ref2 ref:ref5 ref:ref8",
"ref1 ref2 ref5 ref1 ref2 ref5 ref8");
}
@Test
void testMultilevelBacktrackingPreservePartialMatchAfterReferenceTerms() {
assertSemantics("WEAKAND(100) ref:ref1 ref:ref2 ref:ref5 ref:ref8 ref1 ref2 ref5",
"ref1 ref2 ref5 ref8 ref1 ref2 ref5");
}
private Result doSearch(Searcher searcher, Query query, int offset, int hits) {
query.setOffset(offset);
query.setHits(hits);
return createExecution(searcher).search(query);
}
private Execution createExecution(Searcher searcher) {
return new Execution(chainedAsSearchChain(searcher), Execution.Context.createContextStub());
}
private Chain<Searcher> chainedAsSearchChain(Searcher topOfChain) {
List<Searcher> searchers = new ArrayList<>();
searchers.add(topOfChain);
return new Chain<>(searchers);
}
}
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