| /* |
| * Copyright (C) 2016, Matthias Sohn <matthias.sohn@sap.com> |
| * and other copyright owners as documented in the project's IP log. |
| * |
| * This program and the accompanying materials are made available |
| * under the terms of the Eclipse Distribution License v1.0 which |
| * accompanies this distribution, is reproduced below, and is |
| * available at http://www.eclipse.org/org/documents/edl-v10.php |
| * |
| * All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or |
| * without modification, are permitted provided that the following |
| * conditions are met: |
| * |
| * - Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * |
| * - Redistributions in binary form must reproduce the above |
| * copyright notice, this list of conditions and the following |
| * disclaimer in the documentation and/or other materials provided |
| * with the distribution. |
| * |
| * - Neither the name of the Eclipse Foundation, Inc. nor the |
| * names of its contributors may be used to endorse or promote |
| * products derived from this software without specific prior |
| * written permission. |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND |
| * CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, |
| * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
| * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
| * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR |
| * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
| * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; |
| * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER |
| * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, |
| * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
| * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF |
| * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| */ |
| package org.eclipse.jgit.junit; |
| |
| import java.text.MessageFormat; |
| import java.util.logging.Level; |
| import java.util.logging.Logger; |
| |
| import org.junit.rules.TestRule; |
| import org.junit.runner.Description; |
| import org.junit.runners.model.Statement; |
| |
| /** |
| * {@link org.junit.rules.TestRule} which enables to run the same JUnit test |
| * repeatedly. Add this rule to the test class |
| * |
| * <pre> |
| * public class MyTest { |
| * @Rule |
| * public RepeatRule repeatRule = new RepeatRule(); |
| * ... |
| * } |
| * </pre> |
| * |
| * and annotate the test to be repeated with the |
| * {@code @Repeat(n=<repetitions>)} annotation |
| * |
| * <pre> |
| * @Test |
| * @Repeat(n = 100) |
| * public void test() { |
| * ... |
| * } |
| * </pre> |
| * |
| * then this test will be repeated 100 times. If any test execution fails test |
| * repetition will be stopped. |
| */ |
| public class RepeatRule implements TestRule { |
| |
| private static Logger LOG = Logger |
| .getLogger(RepeatRule.class.getName()); |
| |
| public static class RepeatedTestException extends RuntimeException { |
| private static final long serialVersionUID = 1L; |
| |
| public RepeatedTestException(String message, Throwable cause) { |
| super(message, cause); |
| } |
| } |
| |
| private static class RepeatStatement extends Statement { |
| |
| private final int repetitions; |
| |
| private final Statement statement; |
| |
| private RepeatStatement(int repetitions, Statement statement) { |
| this.repetitions = repetitions; |
| this.statement = statement; |
| } |
| |
| @Override |
| public void evaluate() throws Throwable { |
| for (int i = 0; i < repetitions; i++) { |
| try { |
| statement.evaluate(); |
| } catch (Throwable e) { |
| RepeatedTestException ex = new RepeatedTestException( |
| MessageFormat.format( |
| "Repeated test failed when run for the {0}. time", |
| Integer.valueOf(i + 1)), |
| e); |
| LOG.log(Level.SEVERE, ex.getMessage(), ex); |
| throw ex; |
| } |
| } |
| } |
| } |
| |
| /** {@inheritDoc} */ |
| @Override |
| public Statement apply(Statement statement, Description description) { |
| Statement result = statement; |
| Repeat repeat = description.getAnnotation(Repeat.class); |
| if (repeat != null) { |
| int n = repeat.n(); |
| result = new RepeatStatement(n, statement); |
| } |
| return result; |
| } |
| } |