1 /* 2 * Copyright (C) 2008 The Guava Authors 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.google.common.testing; 18 19 import com.google.common.annotations.GwtCompatible; 20 21 /** 22 * An object that can perform a {@link #tearDown} operation. 23 * 24 * @author Kevin Bourrillion 25 * @since 10.0 26 */ 27 @GwtCompatible 28 @ElementTypesAreNonnullByDefault 29 public interface TearDown { 30 /** 31 * Performs a <b>single</b> tear-down operation. See test-libraries-for-java's {@code 32 * com.google.common.testing.junit3.TearDownTestCase} and {@code 33 * com.google.common.testing.junit4.TearDownTestCase} for example. 34 * 35 * <p>A failing {@link TearDown} may or may not fail a tl4j test, depending on the version of 36 * JUnit test case you are running under. To avoid failing in the face of an exception regardless 37 * of JUnit version, implement a {@link SloppyTearDown} instead. 38 * 39 * <p>tl4j details: For backwards compatibility, {@code junit3.TearDownTestCase} currently does 40 * not fail a test when an exception is thrown from one of its {@link TearDown} instances, but 41 * this is subject to change. Also, {@code junit4.TearDownTestCase} will. 42 * 43 * @throws Exception for any reason. {@code TearDownTestCase} ensures that any exception thrown 44 * will not interfere with other TearDown operations. 45 */ tearDown()46 void tearDown() throws Exception; 47 } 48