1 /* 2 * Copyright (C) 2022 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 package com.android.server.art.testing; 18 19 import org.junit.rules.MethodRule; 20 import org.junit.runners.model.FrameworkMethod; 21 import org.junit.runners.model.Statement; 22 23 /** A JUnit rule that invokes a runnable on success. */ 24 public class OnSuccessRule implements MethodRule { 25 private RunnableThrowingException mRunnable; 26 OnSuccessRule(RunnableThrowingException runnable)27 public OnSuccessRule(RunnableThrowingException runnable) { 28 mRunnable = runnable; 29 } 30 31 @Override apply(Statement base, FrameworkMethod method, Object target)32 public Statement apply(Statement base, FrameworkMethod method, Object target) { 33 return new Statement() { 34 public void evaluate() throws Throwable { 35 base.evaluate(); 36 mRunnable.run(); 37 } 38 }; 39 } 40 41 public interface RunnableThrowingException { 42 void run() throws Exception; 43 } 44 } 45