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.Lock;
  import java.util.Collections;
  import org.junit.jupiter.api.Test;
  import org.junit.jupiter.api.extension.ExtendWith;
  import org.mockito.Mock;
  import org.mockito.junit.jupiter.MockitoExtension;
  import org.springframework.retry.policy.NeverRetryPolicy;
  import org.springframework.retry.policy.SimpleRetryPolicy;
  import org.springframework.retry.support.RetryTemplate;
  
  import static org.assertj.core.api.Assertions.assertThat;
  import static org.mockito.ArgumentMatchers.anyList;
  import static org.mockito.ArgumentMatchers.anyLong;
  import static org.mockito.ArgumentMatchers.anyString;
  import static org.mockito.Mockito.times;
  import static org.mockito.Mockito.verify;
  import static org.mockito.Mockito.when;
  
  @ExtendWith(MockitoExtension.class)
  public class RetriableLockTest {
  
    @Mock
    private Lock lock;
  
    @Test
    public void shouldNotRetryWhenFirstAttemptIsSuccessful() {
      when(lock.acquire(anyList(), anyString(), anyLong()))
        .thenReturn("abc");
  
      final RetryTemplate retryTemplate = new RetryTemplate();
      retryTemplate.setRetryPolicy(new NeverRetryPolicy());
  
      final RetriableLock retriableLock = new RetriableLock(lock, retryTemplate);
      final String token = retriableLock.acquire(Collections.singletonList("key"), "defaultStore", 1000L);
  
      assertThat(token).isEqualTo("abc");
    }
  
    @Test
    public void shouldRetryWhenFirstAttemptIsNotSuccessful() {
      when(lock.acquire(anyList(), anyString(), anyLong()))
        .thenReturn(null)
        .thenReturn("abc");
  
      final RetryTemplate retryTemplate = new RetryTemplate();
      retryTemplate.setRetryPolicy(new SimpleRetryPolicy(2));
  
      final RetriableLock retriableLock = new RetriableLock(lock, retryTemplate);
      final String token = retriableLock.acquire(Collections.singletonList("key"), "defaultStore", 1000L);
  
      assertThat(token).isEqualTo("abc");
      verify(lock, times(2)).acquire(anyList(), anyString(), anyLong());
    }
  
    @Test
    public void shouldFailRetryWhenFirstAttemptIsNotSuccessful() {
      when(lock.acquire(anyList(), anyString(), anyLong()))
        .thenReturn(null);
  
      final RetryTemplate retryTemplate = new RetryTemplate();
      retryTemplate.setRetryPolicy(new NeverRetryPolicy());
  
      final RetriableLock retriableLock = new RetriableLock(lock, retryTemplate);
      final String token = retriableLock.acquire(Collections.singletonList("key"), "defaultStore", 1000L);
  
      assertThat(token).isNull();
      verify(lock, times(1)).acquire(anyList(), anyString(), anyLong());
    }
  }
  