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package jcgp.tests;
import static org.junit.Assert.assertTrue;
import jcgp.JCGP.Resources;
import jcgp.population.Chromosome;
import jcgp.population.Connection;
import jcgp.population.Output;
import org.junit.Before;
import org.junit.BeforeClass;
import org.junit.Test;
/**
*
* Tests which cover the behaviour specified for an output.
*
* - An output contains a single source Connection, which can be set and got.
* - It should return the value of its source connection.
* - It must be addressable by an index set upon construction only.
*
*
* @author Eduardo Pedroni
*
*/
public class OutputTests {
private Output output;
private static Chromosome chromosome;
private static Resources resources;
// these are the test values
private final int outputValue = 10;
private final int outputIndex = 2;
@BeforeClass
public static void setUpBeforeClass() {
resources = new Resources();
chromosome = new Chromosome(resources);
}
@Before
public void setUp() throws Exception {
output = new Output(chromosome, outputIndex);
}
@Test
public void evaluationsTest() {
// set source connection, check that the appropriate value is returned
output.setConnection(0, new Connection() {
@Override
public Object getValue() {
// test value
return outputValue;
}
@Override
public String getDescription() {
// blank
return null;
}
});
assertTrue("Incorrect evaluation.", ((Integer) output.calculate()) == outputValue);
}
@Test
public void connectionTest() {
// set a new connection, check that it is correctly returned
Connection newConn = new Connection() {
@Override
public Object getValue() {
// blank
return 0;
}
@Override
public String getDescription() {
// blank
return null;
}
};
output.setConnection(0, newConn);
assertTrue("Incorrect connection returned.", output.getSource() == newConn);
}
@Test
public void indexTest() {
// check that the index returned is the one passed to the constructor
assertTrue("Incorrect index returned.", output.getIndex() == outputIndex);
}
}
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