package Neuro;

import java.io.PrintStream;

/**
 * Does some basic testing on the Neuro package
 */
public class Test
{
  /**
   * typically called with <tt>testAll( System.err )</tt>
   * @return <tt>true</tt> if all tests are successfull
   */
  public static boolean testAll( PrintStream log )
  {
    boolean bOk = true;

    bOk &= testNeuronalNetwork( log );

    log.println( ( bOk ? "[OK]": "[ERR]" ) + " test_All" );
    return bOk;
  }

  public static boolean testNeuronalNetwork( PrintStream log )
  {
    boolean bOk = true;

    try
    {
      NeuronalNetwork nn = new NeuronalNetwork();

      nn.addInput( 1, 1, 1 );
      nn.addInput( 1, -1, 1 );
      nn.addNeuron( 2, 1, 1 );
      nn.addInput( 1, 1, 2 );
      bOk &= nn.value() == 1;
    }
    catch ( Exception e )
    {
      log.println( "exception: " + e.getMessage() );
      bOk &= false;
    }

    try
    {
      NeuronalNetworkReader reader = new NeuronalNetworkReader();

      reader.readTerm( "E1:=+N1" );
      reader.readTerm( "N2:=+N1" );
      reader.readTerm( "E0:=-N2" );

      NeuronalNetwork nn = reader.createNetwork();

      bOk &= nn.value() == 1;
    }
    catch ( Exception e )
    {
      log.println( "exception: " + e.getMessage() );
      bOk &= false;
    }

    log.println( ( bOk ? "[OK]": "[ERR]" ) + " testNeuronalNetwork" );
    return bOk;
  }
}