| /* |
| * 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.commons.testing.junit4; |
| |
| import org.junit.rules.TestRule; |
| import org.junit.runner.Description; |
| import org.junit.runners.model.Statement; |
| |
| /** |
| * Sets a security manager for a test run. The current security manager is first saved then restored after the test is |
| * run. |
| * <p> |
| * Using a security manager can mess up other tests so this is best used from integration tests (classes that end in |
| * "IT" instead of "Test" and "TestCase".) |
| * </p> |
| * |
| * <p> |
| * When this test rule is evaluated, it will: |
| * </p> |
| * <ol> |
| * <li>Save the current SecurityManager.</li> |
| * <li>Set the SecurityManager to the instance supplied to this rule.</li> |
| * <li>Evaluate the test statement.</li> |
| * <li>Reset the current SecurityManager to the one from step (1).</li> |
| * </ol> |
| */ |
| public class SecurityManagerTestRule implements TestRule { |
| |
| private final SecurityManager securityManager; |
| |
| private SecurityManager securityManagerBefore; |
| |
| /** |
| * Constructs a new instance with the given {@link SecurityManager}. |
| * <p> |
| * When this test rule is evaluated, it will: |
| * </p> |
| * <ol> |
| * <li>Save the current SecurityManager.</li> |
| * <li>Set the SecurityManager to the instance supplied to this rule.</li> |
| * <li>Evaluate the test statement.</li> |
| * <li>Reset the current SecurityManager to the one from step (1).</li> |
| * </ol> |
| * |
| * @param securityManager |
| * the {@link SecurityManager} to use while running a test. |
| */ |
| public SecurityManagerTestRule(final SecurityManager securityManager) { |
| super(); |
| this.securityManager = securityManager; |
| } |
| |
| @Override |
| public Statement apply(final Statement base, final Description description) { |
| return new Statement() { |
| private void after() { |
| System.setSecurityManager(securityManagerBefore); |
| } |
| |
| private void before() { |
| securityManagerBefore = System.getSecurityManager(); |
| System.setSecurityManager(securityManager); |
| |
| } |
| |
| @Override |
| public void evaluate() throws Throwable { |
| before(); |
| try { |
| base.evaluate(); |
| } finally { |
| after(); |
| } |
| } |
| }; |
| } |
| |
| } |