| /* |
| * 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.math4.legacy; |
| |
| import java.util.Random; |
| |
| import org.apache.commons.math4.legacy.exception.MathIllegalStateException; |
| import org.junit.Test; |
| import org.junit.runner.RunWith; |
| |
| /** |
| * Test for the "Retry" functionality (retrying Junit test methods). |
| */ |
| @RunWith(RetryRunner.class) |
| public class RetryRunnerTest { |
| private final Random rng = new Random(); |
| |
| /** |
| * Shows that an always failing test will fail even if it is retried. |
| */ |
| @Test(expected=MathIllegalStateException.class) |
| @Retry |
| public void testRetryFailAlways() { |
| throw new MathIllegalStateException(); |
| } |
| |
| /** |
| * Shows that a test that sometimes fail might succeed if it is retried. |
| * In this case the high number of retries makes it quite unlikely that |
| * the exception will be thrown by all of the calls. |
| */ |
| @Test |
| @Retry(100) |
| public void testRetryFailSometimes() { |
| if (rng.nextBoolean()) { |
| throw new MathIllegalStateException(); |
| } |
| } |
| } |