1 /*
2 * Licensed to the Apache Software Foundation (ASF) under one or more
3 * contributor license agreements. See the NOTICE file distributed with
4 * this work for additional information regarding copyright ownership.
5 * The ASF licenses this file to You under the Apache License, Version 2.0
6 * (the "License"); you may not use this file except in compliance with
7 * the License. You may obtain a copy of the License at
8 *
9 * https://www.apache.org/licenses/LICENSE-2.0
10 *
11 * Unless required by applicable law or agreed to in writing, software
12 * distributed under the License is distributed on an "AS IS" BASIS,
13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14 * See the License for the specific language governing permissions and
15 * limitations under the License.
16 */
17
18 /*
19 * This is not the original file distributed by the Apache Software Foundation
20 * It has been modified by the Hipparchus project
21 */
22
23 package org.hipparchus;
24
25 import java.util.Random;
26
27 import org.hipparchus.exception.LocalizedCoreFormats;
28 import org.hipparchus.exception.MathIllegalStateException;
29 import org.junit.Test;
30 import org.junit.runner.RunWith;
31
32 /**
33 * Test for the "Retry" functionality (retrying Junit test methods).
34 */
35 @RunWith(RetryRunner.class)
36 public class RetryRunnerTest {
37 final Random rng = new Random();
38
39 /**
40 * Shows that an always failing test will fail even if it is retried.
41 */
42 @Test(expected=MathIllegalStateException.class)
43 @Retry
44 public void testRetryFailAlways() {
45 throw new MathIllegalStateException(LocalizedCoreFormats.ILLEGAL_STATE);
46 }
47
48 /**
49 * Shows that a test that sometimes fail might succeed if it is retried.
50 * In this case the high number of retries makes it quite unlikely that
51 * the exception will be thrown by all of the calls.
52 */
53 @Test
54 @Retry(100)
55 public void testRetryFailSometimes() {
56 if (rng.nextBoolean()) {
57 throw new MathIllegalStateException(LocalizedCoreFormats.ILLEGAL_STATE);
58 }
59 }
60 }