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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.search.querytransform;
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.prelude.query.AndItem;
import com.yahoo.prelude.query.DotProductItem;
import com.yahoo.prelude.query.Item;
import com.yahoo.prelude.query.OrItem;
import com.yahoo.prelude.query.WandItem;
import com.yahoo.prelude.query.WeakAndItem;
import com.yahoo.prelude.query.WeightedSetItem;
import com.yahoo.prelude.query.WordItem;
import com.yahoo.processing.request.ErrorMessage;
import com.yahoo.search.Query;
import com.yahoo.search.Result;
import com.yahoo.search.Searcher;
import com.yahoo.search.searchchain.Execution;
import org.junit.jupiter.api.BeforeEach;
import org.junit.jupiter.api.Test;
import java.util.Collections;
import java.util.ListIterator;
import static com.yahoo.container.protect.Error.INVALID_QUERY_PARAMETER;
import static org.junit.jupiter.api.Assertions.*;
/**
* Testing of WandSearcher.
*/
public class WandSearcherTestCase {
private static final String VESPA_FIELD = "vespa-field";
private static final double delta = 0.0000001;
private Execution exec;
@SuppressWarnings("deprecation")
private IndexFacts buildIndexFacts() {
SearchDefinition sd = new SearchDefinition("test");
sd.addIndex(new Index(VESPA_FIELD));
return new IndexFacts(new IndexModel(sd));
}
private Execution buildExec() {
return new Execution(new Chain<Searcher>(new WandSearcher()),
Execution.Context.createContextStub(buildIndexFacts()));
}
private Query buildQuery(String wandFieldName, String wandTokens, String wandHeapSize, String wandType, String wandScoreThreshold, String wandThresholdBoostFactor) {
Query q = new Query("");
q.properties().set("wand.field", wandFieldName);
q.properties().set("wand.tokens", wandTokens);
if (wandHeapSize != null) {
q.properties().set("wand.heapSize", wandHeapSize);
}
if (wandType != null) {
q.properties().set("wand.type", wandType);
}
if (wandScoreThreshold != null) {
q.properties().set("wand.scoreThreshold", wandScoreThreshold);
}
if (wandThresholdBoostFactor != null) {
q.properties().set("wand.thresholdBoostFactor", wandThresholdBoostFactor);
}
q.setHits(9);
return q;
}
private Query buildDefaultQuery(String wandFieldName, String wandHeapSize) {
return buildQuery(wandFieldName, "{a:1,b:2,c:3}", wandHeapSize, null, null, null);
}
private Query buildDefaultQuery() {
return buildQuery(VESPA_FIELD, "{a:1,\"b\":2,c:3}", null, null, null, null);
}
private void assertWordItem(String expToken, String expField, int expWeight, Item item) {
WordItem wordItem = (WordItem) item;
assertEquals(expToken, wordItem.getWord());
assertEquals(expField, wordItem.getIndexName());
assertEquals(expWeight, wordItem.getWeight());
}
@BeforeEach
public void setUp() throws Exception {
exec = buildExec();
}
@Test
void requireThatVespaWandCanBeSpecified() {
Query q = buildDefaultQuery();
Result r = exec.search(q);
WeakAndItem root = (WeakAndItem) TestUtils.getQueryTreeRoot(r);
assertEquals(100, root.getN());
assertEquals(3, root.getItemCount());
ListIterator<Item> itr = root.getItemIterator();
assertWordItem("a", VESPA_FIELD, 1, itr.next());
assertWordItem("b", VESPA_FIELD, 2, itr.next());
assertWordItem("c", VESPA_FIELD, 3, itr.next());
assertFalse(itr.hasNext());
}
@Test
void requireThatVespaWandHeapSizeCanBeSpecified() {
Query q = buildDefaultQuery(VESPA_FIELD, "50");
Result r = exec.search(q);
WeakAndItem root = (WeakAndItem) TestUtils.getQueryTreeRoot(r);
assertEquals(50, root.getN());
}
@Test
void requireThatWandCanBeSpecifiedTogetherWithNonAndQueryRoot() {
Query q = buildDefaultQuery();
q.getModel().getQueryTree().setRoot(new WordItem("foo", "otherfield"));
Result r = exec.search(q);
AndItem root = (AndItem) TestUtils.getQueryTreeRoot(r);
assertEquals(2, root.getItemCount());
ListIterator<Item> itr = root.getItemIterator();
assertTrue(itr.next() instanceof WordItem);
assertTrue(itr.next() instanceof WeakAndItem);
assertFalse(itr.hasNext());
}
@Test
void requireThatWandCanBeSpecifiedTogetherWithAndQueryRoot() {
Query q = buildDefaultQuery();
{
AndItem root = new AndItem();
root.addItem(new WordItem("foo", "otherfield"));
root.addItem(new WordItem("bar", "otherfield"));
q.getModel().getQueryTree().setRoot(root);
}
Result r = exec.search(q);
AndItem root = (AndItem) TestUtils.getQueryTreeRoot(r);
assertEquals(3, root.getItemCount());
ListIterator<Item> itr = root.getItemIterator();
assertTrue(itr.next() instanceof WordItem);
assertTrue(itr.next() instanceof WordItem);
assertTrue(itr.next() instanceof WeakAndItem);
assertFalse(itr.hasNext());
}
@Test
void requireThatNothingIsAddedWithoutWandPropertiesSet() {
Query foo = new Query("");
foo.getModel().getQueryTree().setRoot(new WordItem("foo", "otherfield"));
Result r = exec.search(foo);
WordItem root = (WordItem) TestUtils.getQueryTreeRoot(r);
assertEquals("foo", root.getWord());
}
@Test
void requireThatErrorIsReturnedOnInvalidTokenList() {
Query q = buildQuery(VESPA_FIELD, "{a1,b:1}", null, null, null, null);
Result r = exec.search(q);
ErrorMessage msg = r.hits().getError();
assertNotNull(msg);
assertEquals(INVALID_QUERY_PARAMETER.code, msg.getCode());
assertEquals("'{a1,b:1}' is not a legal sparse vector string: Expected ':' starting at position 3 but was ','", msg.getDetailedMessage());
}
@Test
void requireThatErrorIsReturnedOnUnknownField() {
Query q = buildDefaultQuery("unknown", "50");
Result r = exec.search(q);
ErrorMessage msg = r.hits().getError();
assertNotNull(msg);
assertEquals(INVALID_QUERY_PARAMETER.code, msg.getCode());
assertEquals("Field 'unknown' was not found in index facts for search definitions [test]", msg.getDetailedMessage());
}
@Test
void requireThatVespaOrCanBeSpecified() {
Query q = buildQuery(VESPA_FIELD, "{a:1,b:2,c:3}", null, "or", null, null);
Result r = exec.search(q);
OrItem root = (OrItem) TestUtils.getQueryTreeRoot(r);
assertEquals(3, root.getItemCount());
ListIterator<Item> itr = root.getItemIterator();
assertWordItem("a", VESPA_FIELD, 1, itr.next());
assertWordItem("b", VESPA_FIELD, 2, itr.next());
assertWordItem("c", VESPA_FIELD, 3, itr.next());
assertFalse(itr.hasNext());
}
private void assertWeightedSetItem(WeightedSetItem item) {
assertEquals(3, item.getNumTokens());
assertEquals(Integer.valueOf(1), item.getTokenWeight("a"));
assertEquals(Integer.valueOf(2), item.getTokenWeight("b"));
assertEquals(Integer.valueOf(3), item.getTokenWeight("c"));
}
@Test
void requireThatDefaultParallelWandCanBeSpecified() {
Query q = buildQuery(VESPA_FIELD, "{a:1,b:2,c:3}", null, "parallel", null, null);
Result r = exec.search(q);
WandItem root = (WandItem) TestUtils.getQueryTreeRoot(r);
assertEquals(VESPA_FIELD, root.getIndexName());
assertEquals(100, root.getTargetNumHits());
assertEquals(0.0, root.getScoreThreshold(), delta);
assertEquals(1.0, root.getThresholdBoostFactor(), delta);
assertWeightedSetItem(root);
}
@Test
void requireThatParallelWandCanBeSpecified() {
Query q = buildQuery(VESPA_FIELD, "{a:1,b:2,c:3}", "50", "parallel", "70.5", "2.3");
Result r = exec.search(q);
WandItem root = (WandItem) TestUtils.getQueryTreeRoot(r);
assertEquals(VESPA_FIELD, root.getIndexName());
assertEquals(50, root.getTargetNumHits());
assertEquals(70.5, root.getScoreThreshold(), delta);
assertEquals(2.3, root.getThresholdBoostFactor(), delta);
assertWeightedSetItem(root);
}
@Test
void requireThatDotProductCanBeSpecified() {
Query q = buildQuery(VESPA_FIELD, "{a:1,b:2,c:3}", null, "dotProduct", null, null);
Result r = exec.search(q);
DotProductItem root = (DotProductItem) TestUtils.getQueryTreeRoot(r);
assertEquals(VESPA_FIELD, root.getIndexName());
assertWeightedSetItem(root);
}
}
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