package org.jastacry.layer;
   
   import static org.junit.Assert.assertEquals;
   
   import java.io.ByteArrayInputStream;
   import java.io.ByteArrayOutputStream;
   import java.io.FileInputStream;
   import java.io.IOException;
   import java.io.InputStream;
  import java.io.OutputStream;
  
  import org.apache.commons.io.IOUtils;
  import org.jastacry.JastacryException;
  import org.jastacry.test.utils.Tooling;
  
  import org.junit.jupiter.api.AfterEach;
  import org.junit.jupiter.api.Assertions;
  import org.junit.jupiter.api.BeforeEach;
  import org.junit.jupiter.api.Test;
  
  
  /**
   * Test of Layer Random.
   *
   * @author Kai Kretschmann
   *
   */
  public class TestLayerFilemerge
  {
      /**
       * Test data to play with.
       */
      private final String testdata = "The quick brown fox jumps over the lazy dog.";
  
      /**
       * The layer to test.
       */
      private FilemergeLayer layer = null;
  
      /**
       * Init value for random layer.
       */
      private static final String INITVALUE = "src/test/resources/foto.jpg";
  
      /**
       * Init value for random layer.
       */
      private static final String LONGTEXTFILE = "src/test/resources/longtext.txt";
  
      /**
       * Test Before method.
       *
       * @throws Exception
       *             in case of error
       */
      @BeforeEach
      public void setUp() throws Exception
      {
          layer = new FilemergeLayer();
      }
  
      /**
       * Test After method.
       *
       * @throws Exception
       *             in case of error
       */
      @AfterEach
      public void tearDown() throws Exception
      {
          layer = null;
      }
  
      /**
       * Testcase testEncDecStream.
       *
       * @throws JastacryException
       *             in case of error
       */
      @Test
      public void testEncDecStream() throws JastacryException
      {
          byte[] buf = testdata.getBytes();
          final InputStream isEncode = new ByteArrayInputStream(buf);
          final ByteArrayOutputStream osEncode = new ByteArrayOutputStream();
          layer.init(INITVALUE);
          layer.encStream(isEncode, osEncode);
          buf = osEncode.toByteArray();
  
          layer = null;
          layer = new FilemergeLayer();
          final InputStream isDecode = new ByteArrayInputStream(buf);
          final OutputStream osDecode = new ByteArrayOutputStream();
          layer.init(INITVALUE);
          layer.decStream(isDecode, osDecode);
          assertEquals("decoding differs", testdata, osDecode.toString());
      }
  
      /**
      * Testcase testEncDecStream.
      *
      * @throws JastacryException
      *             in case of error
      * @throws IOException in case of error
      */
     @Test
     // TestLink(externalId = "JAS-6")
     public void testEncDecStreamLong() throws JastacryException, IOException
     {
         InputStream is = new FileInputStream(LONGTEXTFILE);
         byte[] buf = IOUtils.toByteArray(is);
 
         final InputStream isEncode = new ByteArrayInputStream(buf);
         final ByteArrayOutputStream osEncode = new ByteArrayOutputStream();
         layer.init(INITVALUE);
         layer.encStream(isEncode, osEncode);
         byte[] buf2 = osEncode.toByteArray();
 
         layer = null;
         layer = new FilemergeLayer();
         final InputStream isDecode = new ByteArrayInputStream(buf2);
         final OutputStream osDecode = new ByteArrayOutputStream();
         layer.init(INITVALUE);
         layer.decStream(isDecode, osDecode);
 
         String sTextcontent = new String(buf, "ISO-8859-1");
         assertEquals("decoding differs", sTextcontent, osDecode.toString());
     }
 
     /**
      * Testcase testEncStream Exceptions.
      *
      * @throws JastacryException
      *             in case of error
      * @throws IOException will be thrown in test
      */
     @Test
     public void testEncStreamException() throws JastacryException, IOException
     {
         Toolingg.html#Tooling">Tooling tool = new Tooling();
         Assertions.assertThrows(JastacryException.class, () -> {
             tool.mockupInputOutputEncStreams(layer);
         });
     }
 
     /**
      * Testcase testDecStream Exceptions.
      *
      * @throws JastacryException
      *             in case of error
      * @throws IOException will be thrown in test
      */
     @Test
     public void testDecStreamException() throws JastacryException, IOException
     {
         Toolingg.html#Tooling">Tooling tool = new Tooling();
         Assertions.assertThrows(JastacryException.class, () -> {
             tool.mockupInputOutputDecStreams(layer);
         });
     }
 
     /**
      * Testcase testToString.
      */
     @Test
     public void testToString()
     {
         assertEquals("Layer name mismatch", FilemergeLayer.LAYERNAME, layer.toString());
     }
 
     /**
      * Testcase equals.
      */
     @Test
     public void testEquals()
     {
         FilemergeLayer l1 = new FilemergeLayer();
         FilemergeLayer l2 = new FilemergeLayer();
         l1.init(INITVALUE);
         l2.init(INITVALUE);
         assertEquals("Layer object equal", l1, l2);
     }
 
     /**
      * Testcase equals.
      */
     @Test
     public void testEqualsSame()
     {
         FilemergeLayer l1 = new FilemergeLayer();
         l1.init(INITVALUE);
         assertEquals("Layer object same", l1, l1);
     }
 
     /**
      * Testcase equals.
      */
     @Test
     public void testNotEqualsNull()
     {
         FilemergeLayer l1 = new FilemergeLayer();
         l1.init(INITVALUE);
         Object o = null;
         assertEquals("Layer object null unequal", l1.equals(o), false);
     }
 
     /**
      * Testcase equals.
      */
     @Test
     public void testNotEqualsWrongclass()
     {
         FilemergeLayer l1 = new FilemergeLayer();
         l1.init(INITVALUE);
         Object o = new Object();
         assertEquals("Layer object wrong class unequal", l1.equals(o), false);
     }
 
     /**
      * Testcase hashcode.
      */
     @Test
     public void testHashcode()
     {
         FilemergeLayer l1 = new FilemergeLayer();
         FilemergeLayer l2 = new FilemergeLayer();
         l1.init(INITVALUE);
         l2.init(INITVALUE);
         assertEquals("Layer hash equal", l1.hashCode(), l2.hashCode());
     }
 }