/*
    * 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.socket;
  
  import org.junit.jupiter.api.Test;
  import org.junit.jupiter.api.extension.ExtendWith;
  import org.mockito.junit.jupiter.MockitoExtension;
  
  import javax.net.ssl.SSLParameters;
  import javax.net.ssl.SSLServerSocket;
  import javax.net.ssl.SSLServerSocketFactory;
  import java.io.IOException;
  import java.net.InetAddress;
  import java.net.ServerSocket;
  
  import static org.assertj.core.api.Assertions.assertThat;
  import static org.mockito.ArgumentMatchers.*;
  import static org.mockito.Mockito.*;
  
  /**
   * @author Hakan Altindag
   */
  @ExtendWith(MockitoExtension.class)
  class CompositeSSLServerSocketFactoryShould {
  
      private final SSLParameters sslParameters = spy(
              new SSLParameters(
                      new String[] {"TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA384"},
                      new String[] {"TLSv1.2"}
              )
      );
  
      private final SSLServerSocketFactory sslServerSocketFactory = mock(SSLServerSocketFactory.class);
  
      private final CompositeSSLServerSocketFactory victim = new CompositeSSLServerSocketFactory(sslServerSocketFactory, sslParameters);
  
      @Test
      void returnDefaultCipherSuites() {
          String[] defaultCipherSuites = victim.getDefaultCipherSuites();
  
          assertThat(defaultCipherSuites).containsExactly("TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA384");
          verify(sslParameters, times(1)).getCipherSuites();
      }
  
      @Test
      void returnSupportedCipherSuites() {
          String[] supportedCipherSuites = victim.getSupportedCipherSuites();
  
          assertThat(supportedCipherSuites).containsExactly("TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA384");
          verify(sslParameters, times(1)).getCipherSuites();
      }
  
      @Test
      void createServerSocket() throws IOException {
          SSLServerSocket mockedSslServerSocket = mock(SSLServerSocket.class);
  
          doReturn(mockedSslServerSocket).when(sslServerSocketFactory).createServerSocket();
  
          ServerSocket serverSocket = victim.createServerSocket();
  
          assertThat(serverSocket).isNotNull();
          verify(sslServerSocketFactory, times(1)).createServerSocket();
          verify(mockedSslServerSocket, times(1)).setSSLParameters(sslParameters);
      }
  
      @Test
      void createServerSocketDoesNotUseSslParametersWhenInnerSslServerSocketFactoryReturnsServerSocket() throws IOException {
          ServerSocket mockedServerSocket = mock(ServerSocket.class);
  
          doReturn(mockedServerSocket).when(sslServerSocketFactory).createServerSocket();
  
          ServerSocket serverSocket = victim.createServerSocket();
  
          assertThat(serverSocket).isNotNull();
          verify(sslServerSocketFactory, times(1)).createServerSocket();
          verifyNoInteractions(mockedServerSocket);
      }
  
      @Test
      void createServerSocketWithPort() throws IOException {
          SSLServerSocket mockedSslServerSocket = mock(SSLServerSocket.class);
  
          doReturn(mockedSslServerSocket)
                  .when(sslServerSocketFactory).createServerSocket(anyInt());
  
         ServerSocket serverSocket = victim.createServerSocket(8443);
 
         assertThat(serverSocket).isNotNull();
         verify(sslServerSocketFactory, times(1)).createServerSocket(8443);
         verify(mockedSslServerSocket, times(1)).setSSLParameters(sslParameters);
     }
 
     @Test
     void createServerSocketWithPortBacklog() throws IOException {
         SSLServerSocket mockedSslServerSocket = mock(SSLServerSocket.class);
 
         doReturn(mockedSslServerSocket)
                 .when(sslServerSocketFactory).createServerSocket(anyInt(), anyInt());
 
         ServerSocket serverSocket = victim.createServerSocket(8443, 50);
 
         assertThat(serverSocket).isNotNull();
         verify(sslServerSocketFactory, times(1)).createServerSocket(8443, 50);
         verify(mockedSslServerSocket, times(1)).setSSLParameters(sslParameters);
     }
 
     @Test
     void createServerSocketWithPortBacklogIfAddress() throws IOException {
         SSLServerSocket mockedSslServerSocket = mock(SSLServerSocket.class);
 
         doReturn(mockedSslServerSocket)
                 .when(sslServerSocketFactory).createServerSocket(anyInt(), anyInt(), any(InetAddress.class));
 
         ServerSocket serverSocket = victim.createServerSocket(8443, 50, InetAddress.getLocalHost());
 
         assertThat(serverSocket).isNotNull();
         verify(sslServerSocketFactory, times(1)).createServerSocket(8443, 50, InetAddress.getLocalHost());
         verify(mockedSslServerSocket, times(1)).setSSLParameters(sslParameters);
     }
 
 }