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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.data.access.helpers;
import com.yahoo.collections.Hashlet;
import org.junit.jupiter.api.Test;
import java.util.List;
import java.util.Set;
import static org.junit.jupiter.api.Assertions.*;
/**
* @author arnej
*/
public class MatchFeatureFilterTest {
Hashlet<String,Integer> makeHash() {
var h = new Hashlet<String,Integer>();
h.put("foo", 0);
h.put("bar", 1);
h.put("baz", 2);
h.put("four", 4);
h.put("five", 5);
return h;
}
@Test
void testFiltering() {
var h1 = makeHash();
var h2 = makeHash();
var h3 = makeHash();
var f1 = new MatchFeatureFilter(List.of("foo", "baz", "four"));
var f2 = new MatchFeatureFilter(Set.of("bar", "five"));
var f3 = new MatchFeatureFilter(List.of("not", "bar", "nope"));
var fAll = new MatchFeatureFilter(Set.of("foo", "bar", "baz", "four", "five"));
var h4 = f1.apply(h1);
var h5 = f1.apply(h2);
var h6 = f1.apply(h1);
var h7 = f1.apply(h3);
assertEquals(2, h4.size());
assertEquals(1, h4.get("bar"));
assertEquals(5, h4.get("five"));
assertEquals(h4, h5);
assertEquals(h4, h6);
assertEquals(h4, h7);
// check that we get same instance out if we put the same instance in (only)
assertFalse(h4 == h5);
assertTrue(h4 == h6);
assertFalse(h4 == h7);
assertTrue(h5 == f1.apply(h2));
assertTrue(h7 == f1.apply(h3));
var h8 = f2.apply(h1);
assertEquals(3, h8.size());
assertEquals(0, h8.get("foo"));
assertEquals(2, h8.get("baz"));
assertEquals(4, h8.get("four"));
assertTrue(h8 == f2.apply(h1));
var h9 = f3.apply(h1);
assertEquals(4, h9.size());
assertNull(h9.get("bar"));
var empty = fAll.apply(h1);
assertEquals(0, empty.size());
}
}
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