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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.search.predicate.index;
import com.google.common.primitives.Ints;
import org.junit.jupiter.api.Test;
import java.io.IOException;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;
import static com.yahoo.search.predicate.serialization.SerializationTestHelper.assertSerializationDeserializationMatches;
import static org.junit.jupiter.api.Assertions.*;
/**
* @author bjorncs
*/
public class PredicateIntervalStoreTest {
@Test
void requireThatEmptyIntervalListThrows() {
assertThrows(IllegalArgumentException.class, () -> {
PredicateIntervalStore.Builder builder = new PredicateIntervalStore.Builder();
builder.insert(new ArrayList<>());
});
}
@Test
void requireThatSingleIntervalCanBeInserted() {
testInsertAndRetrieve(0x0001ffff);
}
@Test
void requireThatMultiIntervalEntriesCanBeInserted() {
testInsertAndRetrieve(0x00010001, 0x00020002, 0x0003ffff);
testInsertAndRetrieve(0x00010001, 0x00020002, 0x00030003, 0x00040004, 0x00050005, 0x00060006,
0x00070007, 0x00080008, 0x00090009, 0x000a000a);
}
@Test
void requireThatDifferentSizeIntervalArraysCanBeInserted() {
PredicateIntervalStore.Builder builder = new PredicateIntervalStore.Builder();
int intervals1[] = new int[]{0x00010001, 0x00020002};
int intervals2[] = new int[]{0x00010001, 0x00020002, 0x00030003};
assertEquals(0, builder.insert(Ints.asList(intervals1)));
assertEquals(1, builder.insert(Ints.asList(intervals2)));
}
@Test
void requireThatSerializationAndDeserializationRetainIntervals() throws IOException {
PredicateIntervalStore.Builder builder = new PredicateIntervalStore.Builder();
builder.insert(Arrays.asList(0x00010001, 0x00020002));
builder.insert(Arrays.asList(0x00010001, 0x00020002, 0x00030003));
builder.insert(Arrays.asList(0x0fffffff, 0x00020002, 0x00030003));
PredicateIntervalStore store = builder.build();
assertSerializationDeserializationMatches(
store, PredicateIntervalStore::writeToOutputStream, PredicateIntervalStore::fromInputStream);
}
@Test
void requireThatEqualIntervalListsReturnsSameReference() {
PredicateIntervalStore.Builder builder = new PredicateIntervalStore.Builder();
List<Integer> intervals1 = Arrays.asList(0x00010001, 0x00020002);
List<Integer> intervals2 = Arrays.asList(0x00010001, 0x00020002);
int ref1 = builder.insert(intervals1);
int ref2 = builder.insert(intervals2);
PredicateIntervalStore store = builder.build();
int[] a1 = store.get(ref1);
int[] a2 = store.get(ref2);
assertEquals(a1, a2);
}
private static void testInsertAndRetrieve(int... intervals) {
PredicateIntervalStore.Builder builder = new PredicateIntervalStore.Builder();
int ref = builder.insert(Ints.asList(intervals));
PredicateIntervalStore store = builder.build();
int retrieved[] = store.get(ref);
assertArrayEquals(intervals, retrieved);
}
}
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