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Elasticsearch subproject :test:framework
There is a newer version: 8.15.1
/*
 * Copyright Elasticsearch B.V. and/or licensed to Elasticsearch B.V. under one
 * or more contributor license agreements. Licensed under the "Elastic License
 * 2.0", the "GNU Affero General Public License v3.0 only", and the "Server Side
 * Public License v 1"; you may not use this file except in compliance with, at
 * your election, the "Elastic License 2.0", the "GNU Affero General Public
 * License v3.0 only", or the "Server Side Public License, v 1".
 */

package org.elasticsearch.index.mapper;

import org.apache.lucene.index.LeafReaderContext;
import org.apache.lucene.index.SortedDocValues;
import org.apache.lucene.util.BytesRef;

import java.io.IOException;
import java.io.UncheckedIOException;
import java.util.ArrayList;
import java.util.List;

import static org.junit.Assert.assertNotNull;
import static org.junit.Assert.assertNull;

public class TestBlock implements BlockLoader.Block {
    public static BlockLoader.BlockFactory factory(int pageSize) {
        return new BlockLoader.BlockFactory() {
            @Override
            public BlockLoader.BooleanBuilder booleansFromDocValues(int expectedCount) {
                return booleans(expectedCount);
            }

            @Override
            public BlockLoader.BooleanBuilder booleans(int expectedCount) {
                class BooleansBuilder extends TestBlock.Builder implements BlockLoader.BooleanBuilder {
                    @Override
                    public BooleansBuilder appendBoolean(boolean value) {
                        add(value);
                        return this;
                    }
                }
                return new BooleansBuilder();
            }

            @Override
            public BlockLoader.BytesRefBuilder bytesRefsFromDocValues(int expectedCount) {
                return bytesRefs(expectedCount);
            }

            @Override
            public BlockLoader.BytesRefBuilder bytesRefs(int expectedCount) {
                class BytesRefsBuilder extends TestBlock.Builder implements BlockLoader.BytesRefBuilder {
                    @Override
                    public BytesRefsBuilder appendBytesRef(BytesRef value) {
                        add(BytesRef.deepCopyOf(value));
                        return this;
                    }
                }
                return new BytesRefsBuilder();
            }

            @Override
            public BlockLoader.DoubleBuilder doublesFromDocValues(int expectedCount) {
                return doubles(expectedCount);
            }

            @Override
            public BlockLoader.DoubleBuilder doubles(int expectedCount) {
                class DoublesBuilder extends TestBlock.Builder implements BlockLoader.DoubleBuilder {
                    @Override
                    public DoublesBuilder appendDouble(double value) {
                        add(value);
                        return this;
                    }
                }
                return new DoublesBuilder();
            }

            @Override
            public BlockLoader.IntBuilder intsFromDocValues(int expectedCount) {
                return ints(expectedCount);
            }

            @Override
            public BlockLoader.IntBuilder ints(int expectedCount) {
                class IntsBuilder extends TestBlock.Builder implements BlockLoader.IntBuilder {
                    @Override
                    public IntsBuilder appendInt(int value) {
                        add(value);
                        return this;
                    }
                }
                return new IntsBuilder();
            }

            @Override
            public BlockLoader.LongBuilder longsFromDocValues(int expectedCount) {
                return longs(expectedCount);
            }

            @Override
            public BlockLoader.LongBuilder longs(int expectedCount) {
                class LongsBuilder extends TestBlock.Builder implements BlockLoader.LongBuilder {
                    @Override
                    public LongsBuilder appendLong(long value) {
                        add(value);
                        return this;
                    }
                }
                return new LongsBuilder();
            }

            @Override
            public BlockLoader.Builder nulls(int expectedCount) {
                return longs(expectedCount);
            }

            @Override
            public BlockLoader.Block constantNulls() {
                BlockLoader.LongBuilder builder = longs(pageSize);
                for (int i = 0; i < pageSize; i++) {
                    builder.appendNull();
                }
                return builder.build();
            }

            @Override
            public BlockLoader.Block constantBytes(BytesRef value) {
                BlockLoader.BytesRefBuilder builder = bytesRefs(pageSize);
                for (int i = 0; i < pageSize; i++) {
                    builder.appendBytesRef(value);
                }
                return builder.build();
            }

            @Override
            public BlockLoader.SingletonOrdinalsBuilder singletonOrdinalsBuilder(SortedDocValues ordinals, int count) {
                class SingletonOrdsBuilder extends TestBlock.Builder implements BlockLoader.SingletonOrdinalsBuilder {
                    @Override
                    public SingletonOrdsBuilder appendOrd(int value) {
                        try {
                            add(ordinals.lookupOrd(value));
                            return this;
                        } catch (IOException e) {
                            throw new UncheckedIOException(e);
                        }
                    }
                }
                return new SingletonOrdsBuilder();
            }
        };
    }

    public static final BlockLoader.Docs docs(int... docs) {
        return new BlockLoader.Docs() {
            @Override
            public int count() {
                return docs.length;
            }

            @Override
            public int get(int i) {
                return docs[i];
            }
        };
    }

    public static final BlockLoader.Docs docs(LeafReaderContext ctx) {
        return new BlockLoader.Docs() {
            @Override
            public int count() {
                return ctx.reader().numDocs();
            }

            @Override
            public int get(int i) {
                return i;
            }
        };
    }

    private final List