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 }