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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.test;
import com.yahoo.prelude.query.Item;
import com.yahoo.prelude.query.PredicateQueryItem;
import org.junit.jupiter.api.Test;
import java.nio.ByteBuffer;
import java.util.Arrays;
import java.util.Iterator;
import static org.junit.jupiter.api.Assertions.assertArrayEquals;
import static org.junit.jupiter.api.Assertions.assertEquals;
/**
* @author Magnar Nedland
*/
public class PredicateQueryItemTestCase {
@Test
void requireThatItemConstantsAreSet() {
PredicateQueryItem item = new PredicateQueryItem();
assertEquals(Item.ItemType.PREDICATE_QUERY, item.getItemType());
assertEquals("PREDICATE_QUERY_ITEM", item.getName());
assertEquals(1, item.getTermCount());
assertEquals("predicate", item.getIndexName());
item.setIndexName("foobar");
assertEquals("foobar", item.getIndexName());
}
@Test
void requireThatFeaturesCanBeAdded() {
PredicateQueryItem item = new PredicateQueryItem();
assertEquals(0, item.getFeatures().size());
item.addFeature("foo", "bar");
item.addFeature("foo", "baz", 0xffff);
item.addFeature(new PredicateQueryItem.Entry("qux", "quux"));
item.addFeature(new PredicateQueryItem.Entry("corge", "grault", 0xf00ba));
assertEquals(4, item.getFeatures().size());
Iterator<PredicateQueryItem.Entry> it = item.getFeatures().iterator();
assertEquals(-1, it.next().getSubQueryBitmap());
assertEquals(0xffffL, it.next().getSubQueryBitmap());
assertEquals(-1, it.next().getSubQueryBitmap());
assertEquals(0xf00baL, it.next().getSubQueryBitmap());
}
@Test
void requireThatRangeFeaturesCanBeAdded() {
PredicateQueryItem item = new PredicateQueryItem();
assertEquals(0, item.getRangeFeatures().size());
item.addRangeFeature("foo", 23);
item.addRangeFeature("foo", 34, 0x12345678L);
item.addRangeFeature(new PredicateQueryItem.RangeEntry("qux", 43));
item.addRangeFeature(new PredicateQueryItem.RangeEntry("corge", 54, 0xf00ba));
assertEquals(4, item.getRangeFeatures().size());
Iterator<PredicateQueryItem.RangeEntry> it = item.getRangeFeatures().iterator();
assertEquals(-1, it.next().getSubQueryBitmap());
assertEquals(0x12345678L, it.next().getSubQueryBitmap());
assertEquals(-1, it.next().getSubQueryBitmap());
assertEquals(0xf00baL, it.next().getSubQueryBitmap());
}
@Test
void requireThatToStringWorks() {
PredicateQueryItem item = new PredicateQueryItem();
assertEquals("PREDICATE_QUERY_ITEM ", item.toString());
item.addFeature("foo", "bar");
item.addFeature("foo", "baz", 0xffffL);
assertEquals("PREDICATE_QUERY_ITEM foo=bar, foo=baz[0xffff]", item.toString());
item.addRangeFeature("foo", 23);
item.addRangeFeature("foo", 34, 0xfffffffffffffffeL);
assertEquals("PREDICATE_QUERY_ITEM foo=bar, foo=baz[0xffff], foo:23, foo:34[0xfffffffffffffffe]", item.toString());
}
@Test
void requireThatPredicateQueryItemCanBeEncoded() {
PredicateQueryItem item = new PredicateQueryItem();
assertEquals("PREDICATE_QUERY_ITEM ", item.toString());
item.addFeature("foo", "bar");
item.addFeature("foo", "baz", 0xffffL);
ByteBuffer buffer = ByteBuffer.allocate(1000);
item.encode(buffer);
buffer.flip();
byte[] actual = new byte[buffer.remaining()];
buffer.get(actual);
assertArrayEquals(new byte[]{
23, // PREDICATE_QUERY code 23
9, 'p', 'r', 'e', 'd', 'i', 'c', 'a', 't', 'e',
2, // 2 features
3, 'f', 'o', 'o', 3, 'b', 'a', 'r', -1, -1, -1, -1, -1, -1, -1, -1, // key, value, subquery
3, 'f', 'o', 'o', 3, 'b', 'a', 'z', 0, 0, 0, 0, 0, 0, -1, -1, // key, value, subquery
0}, // no range features
actual);
item.addRangeFeature("foo", 23);
item.addRangeFeature("foo", 34, 0xfffffffffffffffeL);
buffer.clear();
item.encode(buffer);
buffer.flip();
actual = new byte[buffer.remaining()];
buffer.get(actual);
assertArrayEquals(new byte[]{
23, // PREDICATE_QUERY code 23
9, 'p', 'r', 'e', 'd', 'i', 'c', 'a', 't', 'e',
2, // 2 features
3, 'f', 'o', 'o', 3, 'b', 'a', 'r', -1, -1, -1, -1, -1, -1, -1, -1, // key, value, subquery
3, 'f', 'o', 'o', 3, 'b', 'a', 'z', 0, 0, 0, 0, 0, 0, -1, -1, // key, value, subquery
2, // 2 range features
3, 'f', 'o', 'o', 0, 0, 0, 0, 0, 0, 0, 23, -1, -1, -1, -1, -1, -1, -1, -1, // key, value, subquery
3, 'f', 'o', 'o', 0, 0, 0, 0, 0, 0, 0, 34, -1, -1, -1, -1, -1, -1, -1, -2}, // key, value, subquery
actual);
}
@Test
void requireThatPredicateQueryItemWithManyAttributesCanBeEncoded() {
PredicateQueryItem item = new PredicateQueryItem();
assertEquals("PREDICATE_QUERY_ITEM ", item.toString());
for (int i = 0; i < 200; ++i) {
item.addFeature("foo", "bar");
}
ByteBuffer buffer = ByteBuffer.allocate(10000);
item.encode(buffer);
buffer.flip();
byte[] actual = new byte[buffer.remaining()];
buffer.get(actual);
byte [] expectedPrefix = new byte[]{
23, // PREDICATE_QUERY code 23
9, 'p', 'r', 'e', 'd', 'i', 'c', 'a', 't', 'e',
(byte) 0x80, (byte) 0xc8, // 200 features (0x80c8 => 0xc8 == 200)
3, 'f', 'o', 'o', 3, 'b', 'a', 'r', -1, -1, -1, -1, -1, -1, -1, -1, // key, value, subquery
3, 'f', 'o', 'o', 3, 'b', 'a', 'r', -1, -1, -1, -1, -1, -1, -1, -1, // key, value, subquery
3, 'f', 'o', 'o', 3, 'b', 'a', 'r', -1, -1, -1, -1, -1, -1, -1, -1, // key, value, subquery
}; // ...
assertArrayEquals(expectedPrefix, Arrays.copyOfRange(actual, 0, expectedPrefix.length));
}
}
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