celltest.java

jboss规则引擎

package org.drools.examples.conway;

import junit.framework.TestCase;

/**
 *
 */
public class CellTest extends TestCase {

    public void testDefaultStateIsDead() {
        Cell c1 = new Cell();

        assertEquals( "c1 had wrong inital state",
                      CellState.DEAD,
                      c1.getCellState() );
    }

    public void testAddNeighbor() {
        Cell c1 = new Cell();
        Cell c2 = new Cell();
        assertEquals( "c1 had wrong number of neighbors before adding neighbor",
                      0,
                      c1.getNumberOfNeighboringCells() );
        assertEquals( "c2 had wrong number of neighbors before adding neighbor",
                      0,
                      c2.getNumberOfNeighboringCells() );

        c1.addNeighbor( c2 );

        assertEquals( "c1 had wrong number of neighbors after adding neighbor",
                      1,
                      c1.getNumberOfNeighboringCells() );
        assertEquals( "c2 had wrong number of neighbors after adding neighbor",
                      1,
                      c2.getNumberOfNeighboringCells() );
    }

    public void testAddingNeighborMultipleTimes() {
        Cell c1 = new Cell();
        Cell c2 = new Cell();
        assertEquals( "c1 had wrong number of neighbors before adding neighbor",
                      0,
                      c1.getNumberOfNeighboringCells() );
        assertEquals( "c2 had wrong number of neighbors before adding neighbor",
                      0,
                      c2.getNumberOfNeighboringCells() );

        c1.addNeighbor( c2 );

        assertEquals( "c1 had wrong number of neighbors after adding neighbor",
                      1,
                      c1.getNumberOfNeighboringCells() );
        assertEquals( "c2 had wrong number of neighbors after adding neighbor",
                      1,
                      c2.getNumberOfNeighboringCells() );

        c1.addNeighbor( c2 );
        c1.addNeighbor( c2 );
        c2.addNeighbor( c1 );

        assertEquals( "c1 had wrong number of neighbors after adding neighbor again",
                      1,
                      c1.getNumberOfNeighboringCells() );
        assertEquals( "c2 had wrong number of neighbors after adding neighbor again",
                      1,
                      c2.getNumberOfNeighboringCells() );
    }

    public void testNumberOfLiveNeighbors() {
        Cell c1 = new Cell();
        Cell c2 = new Cell();
        Cell c3 = new Cell();

        c1.addNeighbor( c2 );

        assertEquals( "c1 had wrong number of live neighbors initally",
                      0,
                      c1.getNumberOfLiveNeighbors() );

        c2.setCellState( CellState.LIVE );

        assertEquals( "c1 had wrong number of live neighbors",
                      1,
                      c1.getNumberOfLiveNeighbors() );
        c3.setCellState( CellState.LIVE );
        c1.addNeighbor( c3 );
        assertEquals( "c1 had wrong number of live neighbors",
                      2,
                      c1.getNumberOfLiveNeighbors() );

    }

    public void testStateQueuing() {
        Cell c1 = new Cell();
        assertEquals( "c1 had wrong inital state",
                      CellState.DEAD,
                      c1.getCellState() );

        c1.setCellState( CellState.LIVE );
        assertEquals( "c1 had wrong state",
                      CellState.LIVE,
                      c1.getCellState() );

        c1.queueNextCellState( CellState.DEAD );
        assertEquals( "c1 had wrong state",
                      CellState.LIVE,
                      c1.getCellState() );

        c1.transitionState();
        assertEquals( "c1 had wrong state",
                      CellState.DEAD,
                      c1.getCellState() );

        c1.queueNextCellState( CellState.LIVE );
        assertEquals( "c1 had wrong state",
                      CellState.DEAD,
                      c1.getCellState() );

        c1.transitionState();
        assertEquals( "c1 had wrong state",
                      CellState.LIVE,
                      c1.getCellState() );

    }

}