/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package org.apache.flink.api.java.typeutils;

import org.apache.flink.api.common.serialization.SerializerConfig;
import org.apache.flink.api.common.typeinfo.BasicTypeInfo;
import org.apache.flink.api.common.typeutils.TypeInformationTestBase;
import org.apache.flink.api.common.typeutils.TypeSerializer;
import org.apache.flink.api.java.tuple.Tuple1;

import org.junit.jupiter.api.Test;

import static org.assertj.core.api.Assertions.assertThat;

/** Test for {@link TupleTypeInfo}. */
class TupleTypeInfoTest extends TypeInformationTestBase<TupleTypeInfo<?>> {

    @Override
    protected TupleTypeInfo<?>[] getTestData() {
        return new TupleTypeInfo<?>[] {
            new TupleTypeInfo<>(BasicTypeInfo.INT_TYPE_INFO, BasicTypeInfo.STRING_TYPE_INFO),
            new TupleTypeInfo<>(BasicTypeInfo.INT_TYPE_INFO, BasicTypeInfo.BOOLEAN_TYPE_INFO)
        };
    }

    @Test
    void testTupleTypeInfoSymmetricEqualityRelation() {
        TupleTypeInfo<Tuple1<Integer>> tupleTypeInfo =
                new TupleTypeInfo<>(BasicTypeInfo.INT_TYPE_INFO);

        TupleTypeInfoBase<Tuple1> anonymousTupleTypeInfo =
                new TupleTypeInfoBase<Tuple1>(Tuple1.class, BasicTypeInfo.INT_TYPE_INFO) {

                    private static final long serialVersionUID = -7985593598027660836L;

                    @Override
                    public TypeSerializer<Tuple1> createSerializer(SerializerConfig config) {
                        return null;
                    }

                    @Override
                    protected TypeComparatorBuilder<Tuple1> createTypeComparatorBuilder() {
                        return null;
                    }

                    @Override
                    public String[] getFieldNames() {
                        return new String[0];
                    }

                    @Override
                    public int getFieldIndex(String fieldName) {
                        return 0;
                    }
                };

        boolean tupleVsAnonymous = tupleTypeInfo.equals(anonymousTupleTypeInfo);
        boolean anonymousVsTuple = anonymousTupleTypeInfo.equals(tupleTypeInfo);

        assertThat(tupleVsAnonymous)
                .as("Equality relation should be symmetric")
                .isEqualTo(anonymousVsTuple);
    }
}
