content: /*
   * MIT License
   *
   * Copyright (c) 2020 Alen Turkovic
   *
   * Permission is hereby granted, free of charge, to any person obtaining a copy
   * of this software and associated documentation files (the "Software"), to deal
   * in the Software without restriction, including without limitation the rights
   * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
   * copies of the Software, and to permit persons to whom the Software is
   * furnished to do so, subject to the following conditions:
   *
   * The above copyright notice and this permission notice shall be included in all
   * copies or substantial portions of the Software.
   *
   * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
   * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
   * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
   * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
   * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
   * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
   * SOFTWARE.
   */
  
  package com.github.alturkovic.lock.retry;
  
  import com.github.alturkovic.lock.Interval;
  import com.github.alturkovic.lock.Locked;
  import com.github.alturkovic.lock.interval.BeanFactoryAwareIntervalConverter;
  import com.github.alturkovic.lock.interval.IntervalConverter;
  import org.junit.jupiter.api.Test;
  import org.springframework.beans.ConfigurablePropertyAccessor;
  import org.springframework.beans.PropertyAccessorFactory;
  import org.springframework.beans.factory.support.DefaultListableBeanFactory;
  import org.springframework.retry.RetryPolicy;
  import org.springframework.retry.backoff.FixedBackOffPolicy;
  import org.springframework.retry.policy.CompositeRetryPolicy;
  import org.springframework.retry.policy.SimpleRetryPolicy;
  import org.springframework.retry.policy.TimeoutRetryPolicy;
  import org.springframework.retry.support.RetryTemplate;
  
  import static org.assertj.core.api.Assertions.assertThat;
  
  public class DefaultRetryTemplateConverterTest {
  
    private final IntervalConverter intervalConverter = new BeanFactoryAwareIntervalConverter(new DefaultListableBeanFactory());
  
    @Test
    @Locked
    public void shouldConstructDefaultRetryTemplate() {
      final Locked locked = new Object() {}.getClass().getEnclosingMethod().getAnnotation(Locked.class);
      final RetryTemplateConverter converter = new DefaultRetryTemplateConverter(intervalConverter);
      final RetryTemplate retryTemplate = converter.construct(locked);
  
      assertRetryTemplateConstruction(retryTemplate, 1000L, 50L);
    }
  
    @Test
    @Locked(retry = @Interval("100"), timeout = @Interval("2000"))
    public void shouldConstructCustomizedRetryTemplate() {
      final Locked locked = new Object() {}.getClass().getEnclosingMethod().getAnnotation(Locked.class);
      final RetryTemplateConverter converter = new DefaultRetryTemplateConverter(intervalConverter);
      final RetryTemplate retryTemplate = converter.construct(locked);
  
      assertRetryTemplateConstruction(retryTemplate, 2000L, 100L);
    }
  
    @Test
    @Locked(retry = @Interval("0"))
    public void shouldConstructNullRetryTemplateWithNoRetry() {
      final Locked locked = new Object() {}.getClass().getEnclosingMethod().getAnnotation(Locked.class);
      final RetryTemplateConverter converter = new DefaultRetryTemplateConverter(intervalConverter);
      final RetryTemplate retryTemplate = converter.construct(locked);
  
      assertThat(retryTemplate).isNull();
    }
  
    @Test
    @Locked(timeout = @Interval("0"))
    public void shouldConstructNullRetryTemplateWithNoTimeout() {
      final Locked locked = new Object() {}.getClass().getEnclosingMethod().getAnnotation(Locked.class);
      final RetryTemplateConverter converter = new DefaultRetryTemplateConverter(intervalConverter);
      final RetryTemplate retryTemplate = converter.construct(locked);
  
      assertThat(retryTemplate).isNull();
    }
  
    // is there a better way to test the RetryTemplate construction?
    private void assertRetryTemplateConstruction(final RetryTemplate retryTemplate, final long timeout, final long backOff) {
      final ConfigurablePropertyAccessor wrapper = PropertyAccessorFactory.forDirectFieldAccess(retryTemplate);
  
      assertThat(wrapper.getPropertyValue("retryPolicy")).isInstanceOf(CompositeRetryPolicy.class);
      assertThat((RetryPolicy[]) wrapper.getPropertyValue("retryPolicy.policies"))
        .hasSize(2)
        .allMatch(policy -> {
          if (policy instanceof TimeoutRetryPolicy) {
            final TimeoutRetryPolicy timeoutRetryPolicy = (TimeoutRetryPolicy) policy;
            assertThat(timeoutRetryPolicy.getTimeout()).isEqualTo(timeout);
            return true;
          }
          if (policy instanceof SimpleRetryPolicy) {
            final SimpleRetryPolicy simpleRetryPolicy = (SimpleRetryPolicy) policy;
            assertThat(simpleRetryPolicy.getMaxAttempts()).isEqualTo(Integer.MAX_VALUE);
            return true;
          }
          return false;
        });
  
      assertThat(wrapper.getPropertyValue("backOffPolicy")).isInstanceOf(FixedBackOffPolicy.class);
      assertThat(((FixedBackOffPolicy) wrapper.getPropertyValue("backOffPolicy")).getBackOffPeriod()).isEqualTo(backOff);
    }
  }