/*
    * Copyright 2019-2021 the original author or authors.
    *
    * 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
    *
    *      https://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 nl.altindag.ssl.keymanager;
  
  import org.junit.jupiter.api.Test;
  import org.junit.jupiter.api.extension.ExtendWith;
  import org.mockito.junit.jupiter.MockitoExtension;
  
  import javax.net.ssl.X509ExtendedKeyManager;
  import java.security.PrivateKey;
  import java.security.cert.X509Certificate;
  
  import static org.assertj.core.api.Assertions.assertThat;
  import static org.assertj.core.api.Assertions.assertThatThrownBy;
  import static org.mockito.ArgumentMatchers.any;
  import static org.mockito.ArgumentMatchers.anyString;
  import static org.mockito.Mockito.mock;
  import static org.mockito.Mockito.times;
  import static org.mockito.Mockito.verify;
  import static org.mockito.Mockito.when;
  
  /**
   * @author Hakan Altindag
   */
  @ExtendWith(MockitoExtension.class)
  class HotSwappableX509ExtendedKeyManagerShould {
  
      @Test
      void chooseClientAlias() {
          X509ExtendedKeyManager keyManager = mock(X509ExtendedKeyManager.class);
          when(keyManager.chooseClientAlias(any(), any(), any())).thenReturn("alias");
  
          X509ExtendedKeyManager victim = new HotSwappableX509ExtendedKeyManager(keyManager);
          String clientAlias = victim.chooseClientAlias(null, null, null);
  
          assertThat(clientAlias).isEqualTo("alias");
          verify(keyManager, times(1)).chooseClientAlias(null, null, null);
      }
  
      @Test
      void chooseEngineClientAlias() {
          X509ExtendedKeyManager keyManager = mock(X509ExtendedKeyManager.class);
          when(keyManager.chooseEngineClientAlias(any(), any(), any())).thenReturn("alias");
  
          X509ExtendedKeyManager victim = new HotSwappableX509ExtendedKeyManager(keyManager);
          String clientAlias = victim.chooseEngineClientAlias(null, null, null);
  
          assertThat(clientAlias).isEqualTo("alias");
          verify(keyManager, times(1)).chooseEngineClientAlias(null, null, null);
      }
  
      @Test
      void chooseServerAlias() {
          X509ExtendedKeyManager keyManager = mock(X509ExtendedKeyManager.class);
          when(keyManager.chooseServerAlias(any(), any(), any())).thenReturn("alias");
  
          X509ExtendedKeyManager victim = new HotSwappableX509ExtendedKeyManager(keyManager);
          String clientAlias = victim.chooseServerAlias(null, null, null);
  
          assertThat(clientAlias).isEqualTo("alias");
          verify(keyManager, times(1)).chooseServerAlias(null, null, null);
      }
  
      @Test
      void chooseEngineServerAlias() {
          X509ExtendedKeyManager keyManager = mock(X509ExtendedKeyManager.class);
          when(keyManager.chooseEngineServerAlias(any(), any(), any())).thenReturn("alias");
  
          X509ExtendedKeyManager victim = new HotSwappableX509ExtendedKeyManager(keyManager);
          String clientAlias = victim.chooseEngineServerAlias(null, null, null);
  
          assertThat(clientAlias).isEqualTo("alias");
          verify(keyManager, times(1)).chooseEngineServerAlias(null, null, null);
      }
  
      @Test
      void getPrivateKey() {
          X509ExtendedKeyManager keyManager = mock(X509ExtendedKeyManager.class);
          when(keyManager.getPrivateKey(anyString())).thenReturn(mock(PrivateKey.class));
  
          X509ExtendedKeyManager victim = new HotSwappableX509ExtendedKeyManager(keyManager);
          PrivateKey privateKey = victim.getPrivateKey("alias");
  
          assertThat(privateKey).isNotNull();
          verify(keyManager, times(1)).getPrivateKey("alias");
     }
 
     @Test
     void getCertificateChain() {
         X509ExtendedKeyManager keyManager = mock(X509ExtendedKeyManager.class);
         when(keyManager.getCertificateChain(anyString())).thenReturn(new X509Certificate[] { mock(X509Certificate.class) } );
 
         X509ExtendedKeyManager victim = new HotSwappableX509ExtendedKeyManager(keyManager);
         X509Certificate[] certificateChain = victim.getCertificateChain("alias");
 
         assertThat(certificateChain).hasSize(1);
         verify(keyManager, times(1)).getCertificateChain("alias");
     }
 
     @Test
     void getClientAliases() {
         X509ExtendedKeyManager keyManager = mock(X509ExtendedKeyManager.class);
         when(keyManager.getClientAliases(any(), any())).thenReturn(new String[]{"alias-1", "alias-2"});
 
         X509ExtendedKeyManager victim = new HotSwappableX509ExtendedKeyManager(keyManager);
         String[] clientAliases = victim.getClientAliases(null, null);
 
         assertThat(clientAliases).containsExactlyInAnyOrder("alias-1", "alias-2");
         verify(keyManager, times(1)).getClientAliases(null, null);
     }
 
     @Test
     void getServerAliases() {
         X509ExtendedKeyManager keyManager = mock(X509ExtendedKeyManager.class);
         when(keyManager.getServerAliases(any(), any())).thenReturn(new String[]{"alias-1", "alias-2"});
 
         X509ExtendedKeyManager victim = new HotSwappableX509ExtendedKeyManager(keyManager);
         String[] clientAliases = victim.getServerAliases(null, null);
 
         assertThat(clientAliases).containsExactlyInAnyOrder("alias-1", "alias-2");
         verify(keyManager, times(1)).getServerAliases(null, null);
     }
 
     @Test
     void setKeyManager() {
         X509ExtendedKeyManager keyManager = mock(X509ExtendedKeyManager.class);
         when(keyManager.chooseClientAlias(any(), any(), any())).thenReturn("alias");
 
         HotSwappableX509ExtendedKeyManager victim = new HotSwappableX509ExtendedKeyManager(keyManager);
         victim.chooseClientAlias(null, null, null);
 
         victim.setKeyManager(mock(X509ExtendedKeyManager.class));
         victim.chooseClientAlias(null, null, null);
 
         verify(keyManager, times(1)).chooseClientAlias(null, null, null);
     }
 
     @Test
     void throwNullPointerExceptionWhenKeyManagerIsNotPresent() {
         assertThatThrownBy(() -> new HotSwappableX509ExtendedKeyManager(null))
                 .isInstanceOf(NullPointerException.class);
     }
 
 }