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// Copyright 2017 Yahoo Holdings. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
package com.yahoo.search.querytransform;
import java.util.HashSet;
import java.util.Iterator;
import java.util.Set;
import com.yahoo.container.protect.Error;
import com.yahoo.prelude.IndexFacts;
import com.yahoo.prelude.query.AndItem;
import com.yahoo.prelude.query.WordItem;
import com.yahoo.search.Query;
import com.yahoo.search.Searcher;
import com.yahoo.search.searchchain.Execution;
import org.junit.Before;
import org.junit.Test;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertFalse;
import static org.junit.Assert.assertTrue;
/**
* Unit testing of the searcher com.yahoo.search.querytransform.LegacyCombinator.
*
* @author Steinar Knutsen
*/
public class LegacyCombinatorTestCase {
Searcher searcher;
@Before
public void setUp() throws Exception {
searcher = new LegacyCombinator();
}
@Test
public void testStraightForwardSearch() {
Query q = new Query("?query=a&query.juhu=b");
Execution e = new Execution(searcher, Execution.Context.createContextStub(new IndexFacts()));
e.search(q);
assertEquals("AND a b", q.getModel().getQueryTree().toString());
q = new Query("?query=a&query.juhu=b&defidx.juhu=juhu.22[gnuff]");
e = new Execution(searcher, Execution.Context.createContextStub(new IndexFacts()));
e.search(q);
assertEquals("AND a juhu.22[gnuff]:b", q.getModel().getQueryTree().toString());
q = new Query("?query=a&query.juhu=");
e = new Execution(searcher, Execution.Context.createContextStub(new IndexFacts()));
e.search(q);
assertEquals("a", q.getModel().getQueryTree().toString());
q = new Query("?query=a+c&query.juhu=b");
e = new Execution(searcher, Execution.Context.createContextStub(new IndexFacts()));
e.search(q);
assertEquals("AND a c b", q.getModel().getQueryTree().toString());
}
@Test
public void testNoBaseQuery() {
Query q = new Query("?query.juhu=b");
Execution e = new Execution(searcher, Execution.Context.createContextStub(new IndexFacts()));
e.search(q);
assertEquals("b", q.getModel().getQueryTree().toString());
}
@Test
public void testIncompatibleNewAndOldQuery() {
Query q = new Query("?query.juhu=b&defidx.juhu=a&query.juhu.defidx=c");
Execution e = new Execution(searcher, Execution.Context.createContextStub(new IndexFacts()));
e.search(q);
assertEquals("NULL", q.getModel().getQueryTree().toString());
assertTrue("No expected error found.", q.errors().size() > 0);
assertEquals("Did not get invalid query parameter error as expected.",
Error.INVALID_QUERY_PARAMETER.code, q.errors().get(0).getCode());
}
@Test
public void testNotCombinatorWithoutRoot() {
Query q = new Query("?query.juhu=b&query.juhu.defidx=nalle&query.juhu.operator=not");
Execution e = new Execution(searcher, Execution.Context.createContextStub(new IndexFacts()));
e.search(q);
assertEquals("NULL", q.getModel().getQueryTree().toString());
assertTrue("No expected error found.", q.errors().size() > 0);
System.out.println(q.errors());
assertEquals("Did not get invalid query parameter error as expected.",
Error.INVALID_QUERY_PARAMETER.code, q.errors().get(0).getCode());
}
@Test
public void testRankCombinator() {
Query q = new Query("?query.juhu=b&query.juhu.defidx=nalle&query.juhu.operator=rank");
Execution e = new Execution(searcher, Execution.Context.createContextStub(new IndexFacts()));
e.search(q);
assertEquals("nalle:b", q.getModel().getQueryTree().toString());
}
@Test
public void testRankAndNot() {
Query q = new Query("?query.yahoo=2&query.yahoo.defidx=1&query.yahoo.operator=not&query.juhu=b&query.juhu.defidx=nalle&query.juhu.operator=rank");
Execution e = new Execution(searcher, Execution.Context.createContextStub(new IndexFacts()));
e.search(q);
assertEquals("+nalle:b -1:2", q.getModel().getQueryTree().toString());
}
@Test
public void testReqAndRankAndNot() {
Query q = new Query("?query.yahoo=2&query.yahoo.defidx=1&query.yahoo.operator=not&query.juhu=b&query.juhu.defidx=nalle&query.juhu.operator=rank&query.bamse=z&query.bamse.defidx=y");
Execution e = new Execution(searcher, Execution.Context.createContextStub(new IndexFacts()));
e.search(q);
assertEquals("+(RANK y:z nalle:b) -1:2", q.getModel().getQueryTree().toString());
}
@Test
public void testReqAndRank() {
Query q = new Query("?query.juhu=b&query.juhu.defidx=nalle&query.juhu.operator=rank&query.bamse=z&query.bamse.defidx=y");
Execution e = new Execution(searcher, Execution.Context.createContextStub(new IndexFacts()));
e.search(q);
assertEquals("RANK y:z nalle:b", q.getModel().getQueryTree().toString());
}
@Test
public void testReqAndNot() {
Query q = new Query("?query.juhu=b&query.juhu.defidx=nalle&query.juhu.operator=not&query.bamse=z&query.bamse.defidx=y");
Execution e = new Execution(searcher, Execution.Context.createContextStub(new IndexFacts()));
e.search(q);
assertEquals("+y:z -nalle:b", q.getModel().getQueryTree().toString());
}
@Test
public void testNewAndOld() {
Query q = new Query("?query.juhu=b&defidx.juhu=nalle&query.bamse=z&query.bamse.defidx=y");
Execution e = new Execution(searcher, Execution.Context.createContextStub(new IndexFacts()));
Set<StringPair> nastierItems = new HashSet<>();
nastierItems.add(new StringPair("nalle", "b"));
nastierItems.add(new StringPair("y", "z"));
e.search(q);
AndItem root = (AndItem) q.getModel().getQueryTree().getRoot();
Iterator<?> iterator = root.getItemIterator();
while (iterator.hasNext()) {
WordItem word = (WordItem) iterator.next();
StringPair asPair = new StringPair(word.getIndexName(), word.stringValue());
if (nastierItems.contains(asPair)) {
nastierItems.remove(asPair);
} else {
assertFalse("Got unexpected item in query tree: ("
+ word.getIndexName() + ", " + word.stringValue() + ")",
true);
}
}
assertEquals("Not all expected items found in query.", 0, nastierItems.size());
}
@Test
public void testReqAndNotWithQuerySyntaxAll() {
Query q = new Query("?query.juhu=b+c&query.juhu.defidx=nalle&query.juhu.operator=not&query.juhu.type=any&query.bamse=z&query.bamse.defidx=y");
Execution e = new Execution(searcher, Execution.Context.createContextStub(new IndexFacts()));
e.search(q);
assertEquals("+y:z -(OR nalle:b nalle:c)", q.getModel().getQueryTree().toString());
}
@Test
public void testDefaultIndexWithoutQuery() {
Query q = new Query("?defidx.juhu=b");
Execution e = new Execution(searcher, Execution.Context.createContextStub(new IndexFacts()));
e.search(q);
assertEquals("NULL", q.getModel().getQueryTree().toString());
q = new Query("?query=a&defidx.juhu=b");
e = new Execution(searcher, Execution.Context.createContextStub(new IndexFacts()));
e.search(q);
assertEquals("a", q.getModel().getQueryTree().toString());
}
private static class StringPair {
public final String index;
public final String value;
StringPair(String index, String value) {
super();
this.index = index;
this.value = value;
}
@Override
public int hashCode() {
final int prime = 31;
int result = 1;
result = prime * result + ((index == null) ? 0 : index.hashCode());
result = prime * result + ((value == null) ? 0 : value.hashCode());
return result;
}
@Override
public boolean equals(Object obj) {
if (this == obj)
return true;
if (obj == null)
return false;
if (getClass() != obj.getClass())
return false;
final StringPair other = (StringPair) obj;
if (index == null) {
if (other.index != null)
return false;
} else if (!index.equals(other.index))
return false;
if (value == null) {
if (other.value != null)
return false;
} else if (!value.equals(other.value))
return false;
return true;
}
}
@Test
public void testMultiPart() {
Query q = new Query("?query=a&query.juhu=b&query.nalle=c");
Execution e = new Execution(searcher, Execution.Context.createContextStub(new IndexFacts()));
Set<String> items = new HashSet<>();
items.add("a");
items.add("b");
items.add("c");
e.search(q);
// OK, the problem here is we have no way of knowing whether nalle or
// juhu was added first, since we have passed through HashMap instances
// inside the implementation
AndItem root = (AndItem) q.getModel().getQueryTree().getRoot();
Iterator<?> iterator = root.getItemIterator();
while (iterator.hasNext()) {
WordItem word = (WordItem) iterator.next();
if (items.contains(word.stringValue())) {
items.remove(word.stringValue());
} else {
assertFalse("Got unexpected item in query tree: " + word.stringValue(), true);
}
}
assertEquals("Not all expected items found in query.", 0, items.size());
Set<StringPair> nastierItems = new HashSet<>();
nastierItems.add(new StringPair("", "a"));
nastierItems.add(new StringPair("juhu.22[gnuff]", "b"));
nastierItems.add(new StringPair("gnuff[8].name(\"tralala\")", "c"));
q = new Query("?query=a&query.juhu=b&defidx.juhu=juhu.22[gnuff]&query.nalle=c&defidx.nalle=gnuff[8].name(%22tralala%22)");
e = new Execution(searcher, Execution.Context.createContextStub(new IndexFacts()));
e.search(q);
root = (AndItem) q.getModel().getQueryTree().getRoot();
iterator = root.getItemIterator();
while (iterator.hasNext()) {
WordItem word = (WordItem) iterator.next();
StringPair asPair = new StringPair(word.getIndexName(), word.stringValue());
if (nastierItems.contains(asPair)) {
nastierItems.remove(asPair);
} else {
assertFalse("Got unexpected item in query tree: ("
+ word.getIndexName() + ", " + word.stringValue() + ")",
true);
}
}
assertEquals("Not all expected items found in query.", 0, nastierItems.size());
}
}
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