/*
 * Copyright (C) 2008 The Guava Authors
 *
 * Licensed 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 com.google.common.testing;

import com.google.common.annotations.Beta;
import com.google.common.annotations.GwtCompatible;

/**
 * An object that can perform a {@link #tearDown} operation.
 *
 * @author Kevin Bourrillion
 * @since 10.0
 */
@Beta
@GwtCompatible
public interface TearDown {
  /**
   * Performs a <b>single</b> tear-down operation. See test-libraries-for-java's
   * {@code com.google.common.testing.junit3.TearDownTestCase} and
   * {@code com.google.common.testing.junit4.TearDownTestCase} for example.
   *
   * <p>A failing {@link TearDown} may or may not fail a tl4j test, depending on
   * the version of JUnit test case you are running under. To avoid failing in
   * the face of an exception regardless of JUnit version, implement a {@link
   * SloppyTearDown} instead.
   *
   * <p>tl4j details: For backwards compatibility, {@code
   * junit3.TearDownTestCase} currently does not fail a test when an exception
   * is thrown from one of its {@link TearDown}s, but this is subject to
   * change. Also, {@code junit4.TearDownTestCase} will.
   *
   * @throws Exception for any reason. {@code TearDownTestCase} ensures that
   *     any exception thrown will not interfere with other TearDown
   *     operations.
   */
  void tearDown() throws Exception;
}