/*
    * 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.SSLSocket;
  import javax.net.ssl.SSLSocketFactory;
  import java.io.ByteArrayInputStream;
  import java.io.IOException;
  import java.io.InputStream;
  import java.net.InetAddress;
  import java.net.Socket;
  
  import static org.assertj.core.api.Assertions.assertThat;
  import static org.mockito.ArgumentMatchers.any;
  import static org.mockito.ArgumentMatchers.anyBoolean;
  import static org.mockito.ArgumentMatchers.anyInt;
  import static org.mockito.ArgumentMatchers.anyString;
  import static org.mockito.Mockito.doReturn;
  import static org.mockito.Mockito.mock;
  import static org.mockito.Mockito.spy;
  import static org.mockito.Mockito.times;
  import static org.mockito.Mockito.verify;
  import static org.mockito.Mockito.verifyNoInteractions;
  
  /**
   * @author Hakan Altindag
   */
  @ExtendWith(MockitoExtension.class)
  class CompositeSSLSocketFactoryShould {
  
      private final SSLParameters sslParameters = spy(
              new SSLParameters(
                      new String[] {"TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA384"},
                      new String[] {"TLSv1.2"}
              )
      );
  
      private final SSLSocketFactory sslSocketFactory = mock(SSLSocketFactory.class);
  
      private final CompositeSSLSocketFactory victim = new CompositeSSLSocketFactory(sslSocketFactory, 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 createSocket() throws IOException {
          SSLSocket mockedSslSocket = mock(SSLSocket.class);
  
          doReturn(mockedSslSocket).when(sslSocketFactory).createSocket();
  
          Socket socket = victim.createSocket();
  
          assertThat(socket).isNotNull();
          verify(sslSocketFactory, times(1)).createSocket();
          verify(mockedSslSocket, times(1)).setSSLParameters(sslParameters);
      }
  
      @Test
      void createSocketDoesNotUseSslParametersWhenInnerSslSocketFactoryReturnsSocket() throws IOException {
          Socket mockedSocket = mock(Socket.class);
  
          doReturn(mockedSocket).when(sslSocketFactory).createSocket();
  
          Socket socket = victim.createSocket();
  
          assertThat(socket).isNotNull();
          verify(sslSocketFactory, times(1)).createSocket();
         verifyNoInteractions(mockedSocket);
     }
 
     @Test
     void createSocketWithSocketInputStreamAutoClosable() throws IOException {
         Socket baseSocket = mock(SSLSocket.class);
         SSLSocket mockedSslSocket = mock(SSLSocket.class);
         InputStream inputStream = new ByteArrayInputStream(new byte[]{});
 
         doReturn(mockedSslSocket)
                 .when(sslSocketFactory).createSocket(any(Socket.class), any(InputStream.class), anyBoolean());
 
         Socket socket = victim.createSocket(baseSocket, inputStream, true);
 
         assertThat(socket).isNotNull();
         verify(sslSocketFactory, times(1)).createSocket(baseSocket, inputStream, true);
         verify(mockedSslSocket, times(1)).setSSLParameters(sslParameters);
     }
 
     @Test
     void createSocketWithSocketHostPortAutoClosable() throws IOException {
         Socket baseSocket = mock(SSLSocket.class);
         SSLSocket mockedSslSocket = mock(SSLSocket.class);
 
         doReturn(mockedSslSocket)
                 .when(sslSocketFactory).createSocket(any(Socket.class), anyString(), anyInt(), anyBoolean());
 
         Socket socket = victim.createSocket(baseSocket, "localhost", 8443, true);
 
         assertThat(socket).isNotNull();
         verify(sslSocketFactory, times(1)).createSocket(baseSocket, "localhost", 8443, true);
         verify(mockedSslSocket, times(1)).setSSLParameters(sslParameters);
     }
 
     @Test
     void createSocketWithHostPort() throws IOException {
         SSLSocket mockedSslSocket = mock(SSLSocket.class);
 
         doReturn(mockedSslSocket)
                 .when(sslSocketFactory).createSocket(anyString(), anyInt());
 
         Socket socket = victim.createSocket("localhost", 8443);
 
         assertThat(socket).isNotNull();
         verify(sslSocketFactory, times(1)).createSocket("localhost", 8443);
         verify(mockedSslSocket, times(1)).setSSLParameters(sslParameters);
     }
 
     @Test
     void createSocketWithHostPortLocalAddressLocalPort() throws IOException {
         SSLSocket mockedSslSocket = mock(SSLSocket.class);
 
         doReturn(mockedSslSocket)
                 .when(sslSocketFactory).createSocket(anyString(), anyInt(), any(InetAddress.class), anyInt());
 
         Socket socket = victim.createSocket("localhost", 8443, InetAddress.getLocalHost(), 1234);
 
         assertThat(socket).isNotNull();
         verify(sslSocketFactory, times(1)).createSocket("localhost", 8443, InetAddress.getLocalHost(), 1234);
         verify(mockedSslSocket, times(1)).setSSLParameters(sslParameters);
     }
 
     @Test
     void createSocketWithAddressPort() throws IOException {
         SSLSocket mockedSslSocket = mock(SSLSocket.class);
 
         doReturn(mockedSslSocket)
                 .when(sslSocketFactory).createSocket(any(InetAddress.class), anyInt());
 
         Socket socket = victim.createSocket(InetAddress.getLocalHost(), 1234);
 
         assertThat(socket).isNotNull();
         verify(sslSocketFactory, times(1)).createSocket(InetAddress.getLocalHost(), 1234);
         verify(mockedSslSocket, times(1)).setSSLParameters(sslParameters);
     }
 
     @Test
     void createSocketWithAddressPortLocalAddressPort() throws IOException {
         SSLSocket mockedSslSocket = mock(SSLSocket.class);
 
         doReturn(mockedSslSocket)
                 .when(sslSocketFactory).createSocket(any(InetAddress.class), anyInt(), any(InetAddress.class), anyInt());
 
         Socket socket = victim.createSocket(InetAddress.getLocalHost(), 1234, InetAddress.getLocalHost(), 4321);
 
         assertThat(socket).isNotNull();
         verify(sslSocketFactory, times(1)).createSocket(InetAddress.getLocalHost(), 1234, InetAddress.getLocalHost(), 4321);
         verify(mockedSslSocket, times(1)).setSSLParameters(sslParameters);
     }
 
 }