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- /*
- * 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 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;
- }
- }
- }
- }
-
- @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;
- }
- }
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