| /** |
| * 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.test; |
| |
| import java.io.Closeable; |
| |
| import org.mockito.Mockito; |
| import org.mockito.invocation.InvocationOnMock; |
| import org.mockito.stubbing.Answer; |
| import org.mockito.stubbing.Stubber; |
| |
| public abstract class MockitoUtil { |
| |
| /** |
| * Return a mock object for an IPC protocol. This special |
| * method is necessary, since the IPC proxies have to implement |
| * Closeable in addition to their protocol interface. |
| * @param clazz the protocol class |
| */ |
| public static <T> T mockProtocol(Class<T> clazz) { |
| return Mockito.mock(clazz, |
| Mockito.withSettings().extraInterfaces(Closeable.class)); |
| } |
| |
| /** |
| * Throw an exception from the mock/spy only in the case that the |
| * call stack at the time the method has a line which matches the given |
| * pattern. |
| * |
| * @param t the Throwable to throw |
| * @param pattern the pattern against which to match the call stack trace |
| * @return the stub in progress |
| */ |
| public static Stubber doThrowWhenCallStackMatches( |
| final Throwable t, final String pattern) { |
| return Mockito.doAnswer(new Answer<Object>() { |
| @Override |
| public Object answer(InvocationOnMock invocation) throws Throwable { |
| t.setStackTrace(Thread.currentThread().getStackTrace()); |
| for (StackTraceElement elem : t.getStackTrace()) { |
| if (elem.toString().matches(pattern)) { |
| throw t; |
| } |
| } |
| return invocation.callRealMethod(); |
| } |
| }); |
| } |
| } |