/* * 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. */ package org.jdbi.v3.core.result; import static org.assertj.core.api.Assertions.assertThat; import org.jdbi.v3.core.Handle; import org.jdbi.v3.core.rule.H2DatabaseRule; import org.junit.Before; import org.junit.Rule; import org.junit.Test; public class TestResultBearing { @Rule public H2DatabaseRule dbRule = new H2DatabaseRule(); @Before public void setUp() throws Exception { Handle h = dbRule.getSharedHandle(); h.execute("CREATE TABLE reduce (u INT)"); for (int u = 0; u < 5; u++) { h.execute("INSERT INTO reduce VALUES (?)", u); } } @Test public void testReduceBiFunction() throws Exception { assertThat( dbRule.getSharedHandle().createQuery("SELECT * FROM reduce") .mapTo(Integer.class) .reduce(0, TestResultBearing::add)) .isEqualTo(10); } public static Integer add(Integer u, Integer v) { return u + v; } }