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// Copyright Yahoo. 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 java.util.StringTokenizer;
import com.yahoo.component.chain.Chain;
import com.yahoo.language.simple.SimpleLinguistics;
import com.yahoo.search.Query;
import com.yahoo.prelude.semantics.RuleBase;
import com.yahoo.prelude.semantics.RuleBaseException;
import com.yahoo.prelude.semantics.SemanticSearcher;
import com.yahoo.search.Result;
import com.yahoo.search.Searcher;
import com.yahoo.search.searchchain.Execution;
import com.yahoo.search.test.QueryTestCase;
import org.junit.jupiter.api.Test;
import static org.junit.jupiter.api.Assertions.*;
/**
* @author bratseth
*/
public class InheritanceTestCase {
private static final String root = "src/test/java/com/yahoo/prelude/semantics/test/rulebases/";
private static final RuleBase parent, child1, child2, grandchild;
private static final SemanticSearcher searcher;
static {
try {
parent = RuleBase.createFromFile(root + "inheritingrules/parent.sr", null, new SimpleLinguistics());
child1 = RuleBase.createFromFile(root + "inheritingrules/child1.sr", null, new SimpleLinguistics());
child2 = RuleBase.createFromFile(root + "inheritingrules/child2.sr", null, new SimpleLinguistics());
grandchild = RuleBase.createFromFile(root + "inheritingrules/grandchild.sr", null, new SimpleLinguistics());
grandchild.setDefault(true);
searcher = new SemanticSearcher(parent, child1, child2, grandchild);
}
catch (Exception e) {
throw new RuntimeException(e);
}
}
protected void assertSemantics(String result, String input, RuleBase base) {
assertSemantics(result, input, base, 0);
}
protected void assertSemantics(String result, String input, RuleBase base, int tracelevel) {
Query query = new Query("?query=" + QueryTestCase.httpEncode(input));
base.analyze(query, tracelevel);
assertEquals(result, query.getModel().getQueryTree().getRoot().toString());
}
@Test
void testInclusion() {
assertTrue(grandchild.includes("child1"));
assertTrue(grandchild.includes("child2"));
assertTrue(grandchild.includes("parent"));
assertTrue(grandchild.includes("grandfather"));
assertTrue(grandchild.includes("grandmother"));
assertFalse(grandchild.includes("nonexisting"));
assertFalse(parent.includes("child1"));
assertFalse(parent.includes("child2"));
assertFalse(parent.includes("parent"));
assertTrue(parent.includes("grandfather"));
assertTrue(parent.includes("grandmother"));
}
@Test
void testInclusionOrderAndContentDump() {
StringTokenizer lines = new StringTokenizer(grandchild.toContentString(), "\n", false);
assertEquals("vw -> audi", lines.nextToken());
assertEquals("car -> car", lines.nextToken());
assertEquals("[brand] [vehicle] -> vehiclebrand:[brand]", lines.nextToken());
assertEquals("vehiclebrand:bmw +> expensivetv", lines.nextToken());
assertEquals("vehiclebrand:audi -> vehiclebrand:skoda", lines.nextToken());
assertEquals("vehiclebrand:vw -> vehiclebrand:audi", lines.nextToken());
assertEquals("causesphrase -> \"a produced phrase\"", lines.nextToken());
assertEquals("[vehicle] :- car, motorcycle, bus", lines.nextToken());
assertEquals("[brand] :- alfa, audi, bmw, skoda", lines.nextToken());
}
@Test
void testParent() {
assertSemantics("WEAKAND(100) vehiclebrand:audi", "audi cars", parent);
assertSemantics("WEAKAND(100) vehiclebrand:alfa", "alfa bus", parent);
assertSemantics("AND (WEAKAND(100) vehiclebrand:bmw) expensivetv", "bmw motorcycle", parent);
assertSemantics("WEAKAND(100) vw car", "vw cars", parent);
assertSemantics("WEAKAND(100) skoda car", "skoda cars", parent);
}
@Test
void testChild1() {
assertSemantics("WEAKAND(100) vehiclebrand:skoda", "audi cars", child1);
assertSemantics("WEAKAND(100) vehiclebrand:alfa", "alfa bus", child1);
assertSemantics("AND (WEAKAND(100) vehiclebrand:bmw) expensivetv", "bmw motorcycle", child1);
assertSemantics("WEAKAND(100) vehiclebrand:skoda", "vw cars", child1);
assertSemantics("WEAKAND(100) skoda car", "skoda cars", child1);
}
@Test
void testChild2() {
assertSemantics("WEAKAND(100) vehiclebrand:audi", "audi cars", child2);
assertSemantics("WEAKAND(100) vehiclebrand:alfa", "alfa bus", child2);
assertSemantics("AND (WEAKAND(100) vehiclebrand:bmw) expensivetv", "bmw motorcycle", child2);
assertSemantics("WEAKAND(100) vw car", "vw cars", child2);
assertSemantics("WEAKAND(100) vehiclebrand:skoda", "skoda cars", child2);
}
@Test
void testGrandchild() {
assertSemantics("WEAKAND(100) vehiclebrand:skoda", "audi cars", grandchild);
assertSemantics("WEAKAND(100) vehiclebrand:alfa", "alfa bus", grandchild);
assertSemantics("AND (WEAKAND(100) vehiclebrand:bmw) expensivetv", "bmw motorcycle", grandchild);
assertSemantics("WEAKAND(100) vehiclebrand:skoda", "vw cars", grandchild);
assertSemantics("WEAKAND(100) vehiclebrand:skoda", "skoda cars", grandchild);
}
@Test
void testRuleBaseNames() {
assertEquals("parent", parent.getName());
assertEquals("child1", child1.getName());
assertEquals("child2", child2.getName());
assertEquals("grandchild", grandchild.getName());
}
@Test
void testSearcher() {
assertSemantics("WEAKAND(100) vehiclebrand:skoda", "vw cars", "");
assertSemantics("WEAKAND(100) vehiclebrand:skoda", "vw cars", "&rules.rulebase=grandchild");
assertSemantics("WEAKAND(100) vehiclebrand:skoda", "vw cars", "&rules.rulebase=grandchild.sd");
try {
assertSemantics("WEAKAND(100) vw cars", "vw cars", "&rules.rulebase=doesntexist");
fail("No exception on missing rule base");
}
catch (RuleBaseException e) {
// Success
}
assertSemantics("WEAKAND(100) vw cars", "vw cars", "&rules.rulebase=grandchild.sd&rules.off");
assertSemantics("WEAKAND(100) vw cars", "vw cars", "&rules.off");
assertSemantics("WEAKAND(100) vw car", "vw cars", "&rules.rulebase=child2");
assertSemantics("WEAKAND(100) vehiclebrand:skoda", "skoda cars", "&rules.rulebase=child2");
assertSemantics("WEAKAND(100) vehiclebrand:skoda", "audi cars", "&rules.rulebase=child1");
assertSemantics("WEAKAND(100) vehiclebrand:skoda", "vw cars", "&rules.rulebase=child1");
assertSemantics("WEAKAND(100) skoda car", "skoda cars", "&rules.rulebase=child1");
assertSemantics("WEAKAND(100) vw car", "vw cars", "&rules.rulebase=parent");
assertSemantics("WEAKAND(100) skoda car", "skoda cars", "&rules.rulebase=parent");
}
protected void assertSemantics(String result,String input,String ruleSelection) {
Query query = new Query("?query=" + QueryTestCase.httpEncode(input) + "&tracelevel=0&tracelevel.rules=0" + ruleSelection);
doSearch(searcher, query, 0,10);
assertEquals(result, query.getModel().getQueryTree().getRoot().toString());
}
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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