| /** |
| * 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.hadoop.gateway.identityasserter.hadoop.groups.filter; |
| |
| import static org.hamcrest.MatcherAssert.assertThat; |
| import static org.junit.Assert.fail; |
| |
| import java.util.Iterator; |
| import java.util.ServiceLoader; |
| |
| import org.apache.hadoop.gateway.deploy.ProviderDeploymentContributor; |
| import org.junit.Test; |
| |
| /** |
| * Test for {@link HadoopGroupProviderDeploymentContributor} |
| * @since 0.11 |
| */ |
| public class HadoopGroupProviderDeploymentContributorTest { |
| |
| @Test |
| public void testServiceLoader() throws Exception { |
| |
| ServiceLoader<ProviderDeploymentContributor> loader = ServiceLoader |
| .load(ProviderDeploymentContributor.class); |
| |
| Iterator<ProviderDeploymentContributor> iterator = loader.iterator(); |
| assertThat("Service iterator empty.", iterator.hasNext()); |
| while (iterator.hasNext()) { |
| Object object = iterator.next(); |
| if (object instanceof HadoopGroupProviderDeploymentContributor) { |
| return; |
| } |
| } |
| fail("Failed to find " |
| + HadoopGroupProviderDeploymentContributor.class.getName() |
| + " via service loader."); |
| } |
| |
| } |