/*
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    * Licensed to the Apache Software Foundation (ASF) under one
    * or more contributor license agreements.  See the NOTICE file
    * distributed with this work for additional information
    * regarding copyright ownership.  The ASF licenses this file
    * to you 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.
   * ====================================================================
   *
   * This software consists of voluntary contributions made by many
   * individuals on behalf of the Apache Software Foundation.  For more
   * information on the Apache Software Foundation, please see
   * <http://www.apache.org/>.
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  package org.apache.hc.client5.http.impl.cache;
  
  import static org.mockito.Mockito.doThrow;
  import static org.mockito.Mockito.verify;
  import static org.mockito.Mockito.when;
  
  import java.util.concurrent.RejectedExecutionException;
  
  import org.apache.hc.client5.http.schedule.SchedulingStrategy;
  import org.apache.hc.core5.util.TimeValue;
  import org.apache.hc.core5.util.Timeout;
  import org.junit.jupiter.api.Assertions;
  import org.junit.jupiter.api.BeforeEach;
  import org.junit.jupiter.api.Test;
  import org.mockito.ArgumentMatchers;
  import org.mockito.Mock;
  import org.mockito.MockitoAnnotations;
  
  public class TestCacheRevalidatorBase {
  
      @Mock
      private SchedulingStrategy mockSchedulingStrategy;
      @Mock
      private CacheRevalidatorBase.ScheduledExecutor mockScheduledExecutor;
      @Mock
      private Runnable mockOperation;
  
      private CacheRevalidatorBase impl;
  
  
      @BeforeEach
      public void setUp() {
          MockitoAnnotations.openMocks(this);
          impl = new CacheRevalidatorBase(mockScheduledExecutor, mockSchedulingStrategy);
      }
  
      @Test
      public void testRevalidateCacheEntrySchedulesExecutionAndPopulatesIdentifier() {
          when(mockSchedulingStrategy.schedule(ArgumentMatchers.anyInt())).thenReturn(TimeValue.ofSeconds(1));
  
          final String cacheKey = "blah";
          impl.scheduleRevalidation(cacheKey, mockOperation);
  
          verify(mockSchedulingStrategy).schedule(0);
          verify(mockScheduledExecutor).schedule(ArgumentMatchers.same(mockOperation), ArgumentMatchers.eq(TimeValue.ofSeconds(1)));
  
          Assertions.assertEquals(1, impl.getScheduledIdentifiers().size());
      }
  
      @Test
      public void testMarkCompleteRemovesIdentifier() {
          when(mockSchedulingStrategy.schedule(ArgumentMatchers.anyInt())).thenReturn(TimeValue.ofSeconds(3));
  
          final String cacheKey = "blah";
          impl.scheduleRevalidation(cacheKey, mockOperation);
  
          verify(mockSchedulingStrategy).schedule(0);
          verify(mockScheduledExecutor).schedule(ArgumentMatchers.any(), ArgumentMatchers.eq(TimeValue.ofSeconds(3)));
  
          Assertions.assertEquals(1, impl.getScheduledIdentifiers().size());
          Assertions.assertTrue(impl.getScheduledIdentifiers().contains(cacheKey));
  
          impl.jobSuccessful(cacheKey);
  
          Assertions.assertEquals(0, impl.getScheduledIdentifiers().size());
      }
  
      @Test
      public void testRevalidateCacheEntryDoesNotPopulateIdentifierOnRejectedExecutionException() {
          when(mockSchedulingStrategy.schedule(ArgumentMatchers.anyInt())).thenReturn(TimeValue.ofSeconds(2));
          doThrow(new RejectedExecutionException()).when(mockScheduledExecutor).schedule(ArgumentMatchers.any(), ArgumentMatchers.any());
  
          final String cacheKey = "blah";
         impl.scheduleRevalidation(cacheKey, mockOperation);
 
         Assertions.assertEquals(0, impl.getScheduledIdentifiers().size());
         verify(mockScheduledExecutor).schedule(ArgumentMatchers.any(), ArgumentMatchers.eq(TimeValue.ofSeconds(2)));
     }
 
     @Test
     public void testRevalidateCacheEntryProperlyCollapsesRequest() {
         when(mockSchedulingStrategy.schedule(ArgumentMatchers.anyInt())).thenReturn(TimeValue.ofSeconds(2));
 
         final String cacheKey = "blah";
         impl.scheduleRevalidation(cacheKey, mockOperation);
         impl.scheduleRevalidation(cacheKey, mockOperation);
         impl.scheduleRevalidation(cacheKey, mockOperation);
 
         verify(mockSchedulingStrategy).schedule(ArgumentMatchers.anyInt());
         verify(mockScheduledExecutor).schedule(ArgumentMatchers.any(), ArgumentMatchers.eq(TimeValue.ofSeconds(2)));
 
         Assertions.assertEquals(1, impl.getScheduledIdentifiers().size());
     }
 
     @Test
     public void testShutdown() throws Exception {
         impl.close();
         impl.awaitTermination(Timeout.ofMinutes(2));
 
         verify(mockScheduledExecutor).shutdown();
         verify(mockScheduledExecutor).awaitTermination(Timeout.ofMinutes(2));
     }
 
 }