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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.query;
import java.lang.reflect.Modifier;
import static org.junit.jupiter.api.Assertions.*;
import org.junit.jupiter.api.Test;
import com.yahoo.search.Query;
import com.yahoo.prelude.query.textualrepresentation.Discloser;
public class ItemLabelTestCase {
private static final class LabelCatcher implements Discloser {
public String label = null;
public void addProperty(String key, Object value) {
if (key.equals("label")) {
if (value == null) {
label = "null";
} else {
label = (String) value;
}
}
}
public void setValue(Object value) {}
public void addChild(Item item) {}
}
@Test
final void testLabelVisibility() throws Exception {
assertTrue(Modifier.isPublic(Item.class.getMethod("setLabel", String.class).getModifiers()));
assertTrue(Modifier.isPublic(Item.class.getMethod("getLabel").getModifiers()));
}
@Test
final void testLabelAccess() {
Item item = new WordItem("word");
assertFalse(item.hasUniqueID());
assertNull(item.getLabel());
item.setLabel("my_label");
assertTrue(item.hasUniqueID());
assertEquals("my_label", item.getLabel());
}
@Test
final void testLabelDisclose() {
LabelCatcher catcher = new LabelCatcher();
Item item = new WordItem("word");
item.disclose(catcher);
assertNull(catcher.label);
item.setLabel("my_other_label");
item.disclose(catcher);
assertEquals("my_other_label", item.getLabel());
}
@Test
final void testLabelEncode() {
Item w1 = new WordItem("w1");
Item w2 = new WordItem("w2");
Item w3 = new WordItem("w3");
AndItem and = new AndItem();
Query query = new Query();
w1.setLabel("bar");
w3.setLabel("foo");
and.addItem(w1);
and.addItem(w2);
and.addItem(w3);
and.setLabel("missing");
query.getModel().getQueryTree().setRoot(and);
query.prepare();
assertEquals("3", query.getRanking().getProperties().get("vespa.label.foo.id").get(0));
assertEquals("1", query.getRanking().getProperties().get("vespa.label.bar.id").get(0));
// Conceptually, any node can have a label. However, only
// taggable nodes are allowed to have a unique id. Taggable
// nodes act as leaf nodes, but labels should be possible for
// any combination of nodes in the query tree. Thus, generic
// labeling is appropriate, but only those items that are also
// taggable will propagate their labels to the bank-end. We
// can live with this weakness for now, as the nodes we
// typically need to label in the back-end are leaf-ish nodes.
assertNull(query.getRanking().getProperties().get("vespa.label.missing.id"));
}
}
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