/*
* 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.beam.sdk.io;
import static org.hamcrest.Matchers.contains;
import static org.hamcrest.Matchers.instanceOf;
import static org.junit.Assert.assertThat;
import static org.junit.Assert.fail;
import com.google.common.collect.Lists;
import java.util.ServiceLoader;
import org.apache.beam.sdk.options.PipelineOptionsFactory;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.junit.runners.JUnit4;
/**
* Tests for {@link LocalFileSystemRegistrar}.
*/
@RunWith(JUnit4.class)
public class LocalFileSystemRegistrarTest {
@Test
public void testServiceLoader() {
for (FileSystemRegistrar registrar
: Lists.newArrayList(ServiceLoader.load(FileSystemRegistrar.class).iterator())) {
if (registrar instanceof LocalFileSystemRegistrar) {
Iterable<FileSystem> fileSystems = registrar.fromOptions(PipelineOptionsFactory.create());
assertThat(fileSystems, contains(instanceOf(LocalFileSystem.class)));
return;
}
}
fail("Expected to find " + LocalFileSystemRegistrar.class);
}
}