/*
* Copyright 2011-2017 Amazon.com, Inc. or its affiliates. All Rights Reserved.
*
* Licensed under the Apache License, Version 2.0 (the "License").
* You may not use this file except in compliance with the License.
* A copy of the License is located at
*
* http://aws.amazon.com/apache2.0
*
* or in the "license" file accompanying this file. This file 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 com.amazonaws.retry;
import com.amazonaws.AmazonClientException;
import com.amazonaws.AmazonWebServiceRequest;
import com.amazonaws.ClientConfiguration;
import com.amazonaws.retry.v2.RetryPolicyContext;
import com.amazonaws.retry.v2.RetryPolicyContexts;
import org.junit.Before;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.mockito.Mock;
import org.mockito.runners.MockitoJUnitRunner;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertFalse;
import static org.junit.Assert.assertTrue;
import static org.mockito.Matchers.any;
import static org.mockito.Matchers.anyInt;
import static org.mockito.Matchers.eq;
import static org.mockito.Mockito.verify;
import static org.mockito.Mockito.when;
@RunWith(MockitoJUnitRunner.class)
public class RetryPolicyAdapterTest {
@Mock
private RetryPolicy.RetryCondition retryCondition;
@Mock
private RetryPolicy.BackoffStrategy backoffStrategy;
private RetryPolicy legacyPolicy;
private ClientConfiguration clientConfiguration = new ClientConfiguration().withMaxErrorRetry(10);
private RetryPolicyAdapter adapter;
@Before
public void setup() {
legacyPolicy = new RetryPolicy(retryCondition, backoffStrategy, 3, false);
adapter = new RetryPolicyAdapter(legacyPolicy, clientConfiguration);
}
@Test
public void getLegacyRetryPolicy_ReturnsSamePolicy() {
assertEquals(legacyPolicy, adapter.getLegacyRetryPolicy());
}
@Test(expected = IllegalArgumentException.class)
public void nullRetryPolicy_ThrowsException() {
new RetryPolicyAdapter(null, clientConfiguration);
}
@Test(expected = IllegalArgumentException.class)
public void nullClientConfiguration_ThrowsException() {
new RetryPolicyAdapter(legacyPolicy, null);
}
@Test
public void computeDelayBeforeNextRetry_DelegatesToLegacyPolicy() {
final RetryPolicyContext context = RetryPolicyContexts.LEGACY;
adapter.computeDelayBeforeNextRetry(context);
verify(backoffStrategy).delayBeforeNextRetry(
eq((AmazonWebServiceRequest) context.originalRequest()),
eq((AmazonClientException) context.exception()),
eq(context.retriesAttempted()));
}
@Test
public void shouldRetry_MaxErrorRetryReached() {
assertFalse(adapter.shouldRetry(RetryPolicyContexts.withRetriesAttempted(3)));
}
@Test
public void shouldRetry_MaxErrorInClientConfigHonored_DoesNotUseMaxErrorInPolicy() {
when(retryCondition.shouldRetry(any(AmazonWebServiceRequest.class), any(AmazonClientException.class), anyInt()))
.thenReturn(true);
legacyPolicy = new RetryPolicy(retryCondition, backoffStrategy, 3, true);
adapter = new RetryPolicyAdapter(legacyPolicy, clientConfiguration);
assertTrue(adapter.shouldRetry(RetryPolicyContexts.withRetriesAttempted(3)));
assertFalse(adapter.shouldRetry(RetryPolicyContexts.withRetriesAttempted(10)));
}
@Test
public void shouldRetry_MaxErrorNotExceeded_DelegatesToLegacyRetryCondition() {
final RetryPolicyContext context = RetryPolicyContexts.LEGACY;
adapter.shouldRetry(context);
verify(retryCondition).shouldRetry(
eq((AmazonWebServiceRequest) context.originalRequest()),
eq((AmazonClientException) context.exception()),
eq(context.retriesAttempted()));
}
}