| /** |
| * 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.util; |
| |
| import org.junit.Test; |
| |
| import static org.junit.Assert.assertEquals; |
| import static org.junit.Assert.assertNotNull; |
| |
| import org.apache.hadoop.util.DiskChecker.DiskErrorException; |
| |
| /** |
| * The class to test DiskValidatorFactory. |
| */ |
| public class TestDiskValidatorFactory { |
| |
| /** |
| * Trivial tests that make sure |
| * {@link DiskValidatorFactory#getInstance(String)} works as expected. |
| * |
| * @throws DiskErrorException if fail to get the instance. |
| */ |
| @Test |
| public void testGetInstance() throws DiskErrorException { |
| DiskValidator diskValidator = DiskValidatorFactory.getInstance("basic"); |
| assertNotNull("Fail to get the instance.", diskValidator); |
| |
| assertEquals("Fail to create the correct instance.", |
| diskValidator.getClass(), BasicDiskValidator.class); |
| |
| assertNotNull("Fail to cache the object", DiskValidatorFactory.INSTANCES. |
| get(BasicDiskValidator.class)); |
| } |
| |
| /** |
| * To test whether an exception is threw out as expected if trying to create |
| * a non-exist class. |
| * @throws DiskErrorException if fail to get the instance. |
| */ |
| @Test(expected = DiskErrorException.class) |
| public void testGetInstanceOfNonExistClass() throws DiskErrorException { |
| DiskValidatorFactory.getInstance("non-exist"); |
| } |
| } |