/*
 * 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.search.suggest.completion;

import org.elasticsearch.test.ESTestCase;
import org.elasticsearch.xcontent.ToXContent;
import org.elasticsearch.xcontent.XContentBuilder;
import org.elasticsearch.xcontent.XContentFactory;
import org.elasticsearch.xcontent.XContentParser;

import java.io.IOException;

public abstract class QueryContextTestCase<QC extends ToXContent> extends ESTestCase {
    private static final int NUMBER_OF_RUNS = 20;

    /**
     * create random model that is put under test
     */
    protected abstract QC createTestModel();

    /**
     * read the context
     */
    protected abstract QC fromXContent(XContentParser parser) throws IOException;

    public void testToXContext() throws IOException {
        for (int i = 0; i < NUMBER_OF_RUNS; i++) {
            QC toXContent = createTestModel();
            XContentBuilder builder = XContentFactory.jsonBuilder();
            toXContent.toXContent(builder, ToXContent.EMPTY_PARAMS);
            try (XContentParser parser = createParser(builder)) {
                parser.nextToken();
                QC fromXContext = fromXContent(parser);
                assertEquals(toXContent, fromXContext);
                assertEquals(toXContent.hashCode(), fromXContext.hashCode());
            }
        }
    }
}