/*
 * 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.shardingsphere.proxy.backend.response.header.update;

import org.apache.shardingsphere.infra.executor.sql.execute.result.update.UpdateResult;
import org.apache.shardingsphere.sql.parser.statement.core.statement.SQLStatement;
import org.junit.jupiter.api.Test;

import java.util.Arrays;
import java.util.Collection;
import java.util.Collections;

import static org.hamcrest.CoreMatchers.is;
import static org.hamcrest.MatcherAssert.assertThat;
import static org.mockito.Mockito.mock;

class UpdateResponseHeaderTest {
    
    @Test
    void assertGetLastInsertIdWhenExecuteResultIsEmpty() {
        UpdateResponseHeader actual = new UpdateResponseHeader(mock(SQLStatement.class));
        assertThat(actual.getLastInsertId(), is(0L));
    }
    
    @Test
    void assertGetLastInsertIdWhenExecuteResultIsNotEmpty() {
        UpdateResponseHeader actual = new UpdateResponseHeader(mock(SQLStatement.class), createExecuteUpdateResults());
        assertThat(actual.getLastInsertId(), is(2L));
    }
    
    private Collection<UpdateResult> createExecuteUpdateResults() {
        return Arrays.asList(new UpdateResult(0, 0L), new UpdateResult(1, 2L), new UpdateResult(3, 4L));
    }
    
    @Test
    void assertGetLastInsertIdWhenAutoGeneratedIdIsNotEmpty() {
        UpdateResponseHeader actual = new UpdateResponseHeader(mock(SQLStatement.class), Collections.emptyList(), createAutoIncrementGeneratedValues());
        assertThat(actual.getLastInsertId(), is(1L));
    }
    
    private Collection<Comparable<?>> createAutoIncrementGeneratedValues() {
        return Arrays.asList(1, 2, 3, 4);
    }
    
    @Test
    void assertGetUpdateCountWhenExecuteResultIsEmpty() {
        UpdateResponseHeader actual = new UpdateResponseHeader(mock(SQLStatement.class));
        assertThat(actual.getUpdateCount(), is(0L));
    }
    
    @Test
    void assertGetUpdateCountWhenExecuteResultIsNotEmpty() {
        UpdateResponseHeader actual = new UpdateResponseHeader(mock(SQLStatement.class), createExecuteUpdateResults());
        assertThat(actual.getUpdateCount(), is(0L));
        actual.mergeUpdateCount();
        assertThat(actual.getUpdateCount(), is(4L));
    }
}
