1 /* 2 * Licensed to the Apache Software Foundation (ASF) under one or more 3 * contributor license agreements. See the NOTICE file distributed with 4 * this work for additional information regarding copyright ownership. 5 * The ASF licenses this file to You under the Apache License, Version 2.0 6 * (the "License"); you may not use this file except in compliance with 7 * the License. You may obtain a copy of the License at 8 * 9 * http://www.apache.org/licenses/LICENSE-2.0 10 * 11 * Unless required by applicable law or agreed to in writing, software 12 * distributed under the License is distributed on an "AS IS" BASIS, 13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 14 * See the License for the specific language governing permissions and 15 * limitations under the License. 16 */ 17 package org.apache.commons.dbutils.handlers.properties; 18 19 import static org.junit.Assert.assertTrue; 20 21 import java.util.ServiceLoader; 22 23 import org.apache.commons.dbutils.PropertyHandler; 24 import org.junit.Before; 25 import org.junit.Test; 26 27 public class PropertyHandlerTest { 28 private ServiceLoader<PropertyHandler> loader; 29 30 @Before 31 public void setUp() { 32 loader = ServiceLoader.load(PropertyHandler.class); 33 } 34 35 /** 36 * Verifying 'more than 1' shows that we found more than we loaded locally which assumes the core handlers 37 * were loaded, too. 38 */ 39 @Test 40 public void testFoundMoreThanLocal() { 41 int count = 0; 42 for (final PropertyHandler handler : loader) { 43 count++; 44 } 45 46 assertTrue(count > 1); 47 } 48 49 @Test 50 public void testServiceLoaderFindsMultipleRegistries() { 51 boolean found = false; 52 for (final PropertyHandler handler : loader) { 53 // this class is defined outside of the main classes of dbutils 54 if (handler instanceof TestPropertyHandler) { 55 found = true; 56 } 57 } 58 59 assertTrue(found); 60 } 61 62 }