| /* |
| * Copyright 2015 Open Networking Laboratory |
| * |
| * 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 org.onlab.util; |
| |
| import org.junit.After; |
| import org.junit.Before; |
| import org.junit.Test; |
| |
| /** |
| * Unit tests for RetryingFunction. |
| * |
| */ |
| public class RetryingFunctionTest { |
| |
| private int round; |
| |
| @Before |
| public void setUp() { |
| round = 1; |
| } |
| |
| @After |
| public void tearDown() { |
| round = 0; |
| } |
| |
| @Test(expected = RetryableException.class) |
| public void testNoRetries() { |
| new RetryingFunction<>(this::succeedAfterOneFailure, RetryableException.class, 0, 10).apply(null); |
| } |
| |
| @Test |
| public void testSuccessAfterOneRetry() { |
| new RetryingFunction<>(this::succeedAfterOneFailure, RetryableException.class, 1, 10).apply(null); |
| } |
| |
| @Test(expected = RetryableException.class) |
| public void testFailureAfterOneRetry() { |
| new RetryingFunction<>(this::succeedAfterTwoFailures, RetryableException.class, 1, 10).apply(null); |
| } |
| |
| @Test |
| public void testFailureAfterTwoRetries() { |
| new RetryingFunction<>(this::succeedAfterTwoFailures, RetryableException.class, 2, 10).apply(null); |
| } |
| |
| @Test(expected = NonRetryableException.class) |
| public void testFailureWithNonRetryableFailure() { |
| new RetryingFunction<>(this::failCompletely, RetryableException.class, 2, 10).apply(null); |
| } |
| |
| private String succeedAfterOneFailure(String input) { |
| if (round++ <= 1) { |
| throw new RetryableException(); |
| } else { |
| return "pass"; |
| } |
| } |
| |
| private String succeedAfterTwoFailures(String input) { |
| if (round++ <= 2) { |
| throw new RetryableException(); |
| } else { |
| return "pass"; |
| } |
| } |
| |
| private String failCompletely(String input) { |
| if (round++ <= 1) { |
| throw new NonRetryableException(); |
| } else { |
| return "pass"; |
| } |
| } |
| |
| private class RetryableException extends RuntimeException { |
| } |
| |
| private class NonRetryableException extends RuntimeException { |
| } |
| } |