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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.search.querytransform.test;
import com.yahoo.component.chain.Chain;
import com.yahoo.prelude.Index;
import com.yahoo.prelude.IndexFacts;
import com.yahoo.prelude.IndexModel;
import com.yahoo.prelude.SearchDefinition;
import com.yahoo.search.Query;
import com.yahoo.search.Result;
import com.yahoo.search.Searcher;
import com.yahoo.search.grouping.GroupingQueryParser;
import com.yahoo.search.query.properties.DefaultProperties;
import com.yahoo.search.querytransform.SortingDegrader;
import com.yahoo.search.searchchain.Execution;
import org.junit.jupiter.api.Test;
import static org.junit.jupiter.api.Assertions.*;
/**
* @author bratseth
*/
public class SortingDegraderTestCase {
@Test
void testDegradingAscending() {
Query query = new Query("?ranking.sorting=%2ba1%20-a2");
execute(query);
assertEquals("a1", query.getRanking().getMatchPhase().getAttribute());
assertTrue(query.getRanking().getMatchPhase().getAscending());
assertEquals(1400l, query.getRanking().getMatchPhase().getMaxHits().longValue());
assertEquals(0.2, query.getRanking().getMatchPhase().getMaxFilterCoverage().doubleValue(), 1e-16);
}
@Test
void testDegradingDescending() {
Query query = new Query("?ranking.sorting=-a1%20-a2");
execute(query);
assertEquals("a1", query.getRanking().getMatchPhase().getAttribute());
assertFalse(query.getRanking().getMatchPhase().getAscending());
assertEquals(1400l, query.getRanking().getMatchPhase().getMaxHits().longValue());
}
@Test
void testDegradingNonDefaultMaxHits() {
Query query = new Query("?ranking.sorting=-a1%20-a2&ranking.matchPhase.maxHits=37");
execute(query);
assertEquals("a1", query.getRanking().getMatchPhase().getAttribute());
assertFalse(query.getRanking().getMatchPhase().getAscending());
assertEquals(37l, query.getRanking().getMatchPhase().getMaxHits().longValue());
}
@Test
void testDegradingNonDefaultMaxFilterCoverage() {
Query query = new Query("?ranking.sorting=-a1%20-a2&ranking.matchPhase.maxFilterCoverage=0.37");
execute(query);
assertEquals("a1", query.getRanking().getMatchPhase().getAttribute());
assertFalse(query.getRanking().getMatchPhase().getAscending());
assertEquals(0.37d, query.getRanking().getMatchPhase().getMaxFilterCoverage().doubleValue(), 1e-16);
}
@Test
void testDegradingNonDefaultIllegalMaxFilterCoverage() {
try {
Query query = new Query("?ranking.sorting=-a1%20-a2&ranking.matchPhase.maxFilterCoverage=37");
assertTrue(false);
} catch (IllegalArgumentException qe) {
assertTrue(qe instanceof IllegalArgumentException);
assertEquals("Could not set 'ranking.matchPhase.maxFilterCoverage' to '37'", qe.getMessage());
Throwable rootE = qe.getCause();
assertTrue(rootE instanceof IllegalArgumentException);
assertEquals("maxFilterCoverage must be in the range [0.0, 1.0]. It is 37.0", rootE.getMessage());
}
}
@Test
void testNoDegradingWhenGrouping() {
Query query = new Query("?ranking.sorting=%2ba1%20-a2&select=all(group(a1)%20each(output(a1)))");
execute(query);
assertNull(query.getRanking().getMatchPhase().getAttribute());
}
@Test
void testNoDegradingWhenNonFastSearchAttribute() {
Query query = new Query("?ranking.sorting=%2bnonFastSearchAttribute%20-a2");
execute(query);
assertNull(query.getRanking().getMatchPhase().getAttribute());
}
@Test
void testNoDegradingWhenNonNumericalAttribute() {
Query query = new Query("?ranking.sorting=%2bstringAttribute%20-a2");
execute(query);
assertNull(query.getRanking().getMatchPhase().getAttribute());
}
@Test
void testNoDegradingWhenMultiValueNumericAttribute() {
Query query = new Query("?ranking.sorting=%2ba3");
execute(query);
assertNull(query.getRanking().getMatchPhase().getAttribute());
}
@Test
void testNoDegradingWhenTurnedOff() {
Query query = new Query("?ranking.sorting=-a1%20-a2&sorting.degrading=false");
execute(query);
assertNull(query.getRanking().getMatchPhase().getAttribute());
}
@Test
void testAccessAllDegradingParametersInQuery() {
Query query = new Query("?ranking.matchPhase.maxHits=555&ranking.matchPhase.attribute=foo&ranking.matchPhase.ascending=true");
execute(query);
assertEquals("foo", query.getRanking().getMatchPhase().getAttribute());
assertTrue(query.getRanking().getMatchPhase().getAscending());
assertEquals(555l, query.getRanking().getMatchPhase().getMaxHits().longValue());
assertEquals("foo", query.properties().get("ranking.matchPhase.attribute"));
assertTrue(query.properties().getBoolean("ranking.matchPhase.ascending"));
assertEquals(555l, query.properties().getLong("ranking.matchPhase.maxHits").longValue());
}
@Test
void testDegradingWithLargeMaxHits() {
Query query = new Query("?ranking.sorting=%2ba1%20-a2");
query.properties().set(DefaultProperties.MAX_HITS, 13 * 1000);
query.properties().set(DefaultProperties.MAX_OFFSET, 8 * 1000);
execute(query);
assertEquals("a1", query.getRanking().getMatchPhase().getAttribute());
assertTrue(query.getRanking().getMatchPhase().getAscending());
assertEquals(21000l, query.getRanking().getMatchPhase().getMaxHits().longValue());
}
@Test
void testDegradingWithoutPaginationSupport() {
Query query = new Query("?ranking.sorting=%2ba1%20-a2&hits=7&offset=1");
query.properties().set(DefaultProperties.MAX_HITS, 13 * 1000);
query.properties().set(DefaultProperties.MAX_OFFSET, 8 * 1000);
query.properties().set(SortingDegrader.PAGINATION, "false");
execute(query);
assertEquals("a1", query.getRanking().getMatchPhase().getAttribute());
assertTrue(query.getRanking().getMatchPhase().getAscending());
assertEquals(8l, query.getRanking().getMatchPhase().getMaxHits().longValue());
}
private Result execute(Query query) {
// Add the grouping parser to transfer the select parameter to a grouping expression
Chain<Searcher> chain = new Chain<Searcher>(new GroupingQueryParser(), new SortingDegrader());
return new Execution(chain, Execution.Context.createContextStub(createIndexFacts())).search(query);
}
private IndexFacts createIndexFacts() {
SearchDefinition test = new SearchDefinition("test");
Index fastSearchAttribute1 = new Index("a1");
fastSearchAttribute1.setFastSearch(true);
fastSearchAttribute1.setNumerical(true);
Index fastSearchAttribute2 = new Index("a2");
fastSearchAttribute2.setFastSearch(true);
fastSearchAttribute2.setNumerical(true);
Index fastSearchAttribute3 = new Index("a3");
fastSearchAttribute3.setFastSearch(true);
fastSearchAttribute3.setNumerical(true);
fastSearchAttribute3.setMultivalue(true);
Index nonFastSearchAttribute = new Index("nonFastSearchAttribute");
nonFastSearchAttribute.setNumerical(true);
Index stringAttribute = new Index("stringAttribute");
stringAttribute.setFastSearch(true);
test.addIndex(fastSearchAttribute1);
test.addIndex(fastSearchAttribute2);
test.addIndex(fastSearchAttribute3);
test.addIndex(nonFastSearchAttribute);
test.addIndex(stringAttribute);
return new IndexFacts(new IndexModel(test));
}
}
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