/*
* Copyright 1999-2015 dangdang.com.
* <p>
* Licensed 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.
* </p>
*/
package com.dangdang.ddframe.rdb.sharding.merger.pipeline.coupling;
import static org.hamcrest.CoreMatchers.is;
import static org.junit.Assert.assertFalse;
import static org.junit.Assert.assertThat;
import static org.junit.Assert.assertTrue;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.util.Arrays;
import org.junit.Test;
import com.dangdang.ddframe.rdb.sharding.merger.ResultSetFactory;
import com.dangdang.ddframe.rdb.sharding.merger.fixture.MockResultSet;
import com.dangdang.ddframe.rdb.sharding.parser.result.merger.MergeContext;
import com.dangdang.ddframe.rdb.sharding.parser.result.merger.OrderByColumn;
import com.dangdang.ddframe.rdb.sharding.parser.result.merger.OrderByColumn.OrderByType;
public final class OrderByResultSetTest {
@Test
public void assertNextForAsc() throws SQLException {
ResultSet resultSet = ResultSetFactory.getResultSet(Arrays.<ResultSet>asList(new MockResultSet<>(1, 4), new MockResultSet<>(2, 4),
new MockResultSet<Integer>()), createMergeContext(OrderByType.ASC));
assertTrue(resultSet.next());
assertThat(resultSet.getInt(1), is(1));
assertTrue(resultSet.next());
assertThat(resultSet.getInt(1), is(2));
assertTrue(resultSet.next());
assertThat(resultSet.getInt(1), is(4));
assertTrue(resultSet.next());
assertThat(resultSet.getInt(1), is(4));
assertFalse(resultSet.next());
}
@Test
public void assertNextForDesc() throws SQLException {
ResultSet resultSet = ResultSetFactory.getResultSet(Arrays.<ResultSet>asList(new MockResultSet<>(4, 1), new MockResultSet<>(4, 2),
new MockResultSet<Integer>()), createMergeContext(OrderByType.DESC));
assertTrue(resultSet.next());
assertThat(resultSet.getInt(1), is(4));
assertTrue(resultSet.next());
assertThat(resultSet.getInt(1), is(4));
assertTrue(resultSet.next());
assertThat(resultSet.getInt(1), is(2));
assertTrue(resultSet.next());
assertThat(resultSet.getInt(1), is(1));
assertFalse(resultSet.next());
}
private MergeContext createMergeContext(final OrderByType orderType) {
MergeContext result = new MergeContext();
result.getOrderByColumns().add(new OrderByColumn("name", orderType));
return result;
}
}