import junit.framework.TestCase;
import com.nurey.ObservableCollection.*;
import java.util.*;

/**
 * <<Class summary>>
 *
 * @author Ilia Lobsanov &lt;&gt;
 * @version $Rev$
 */

public class ObservableListTest extends TestCase implements ListListener {

    private ObservableList list;
    private TestListListener listener;
    
    private Enum expectedAction;
    private ArrayList expectedElements;

    /**
    * Sets up the test fixture.
    *
    * Called before every test case method.
    */
    protected void setUp() {
        
        expectedElements = new ArrayList();

        String bar = "bar";
        String baz = "baz";
        
        list = new ObservableList();
        list.add(bar);
        list.add(baz);
        
        listener = new TestListListener();

        list.register(listener);
        list.register(this);
    }

    /**
    * Tears down the test fixture.
    *
    * Called after every test case method.
    */
    protected void tearDown() {
        // release objects under test here, if necessary
        list.unregister(this);
        list.unregister(listener);
    }


    public void update(ObservableList list, Enum action, ArrayList affectedElements) {
        assertEquals(this.expectedAction, action);
        assertEquals(this.expectedElements.toString(), affectedElements.toString());
    }
    
    /**
    * Tests adding an item to the list
    */
    public void testAdd() {
        String foo = "foo";
        this.expectedAction = ObservableList.Action.ADDED;
        this.expectedElements.add(foo);
        list.add(foo);

    }
    
    /**
    * Tests adding an item to the list via an index
    */
    public void testAddIndex() {
        String foo = "foo";
        this.expectedAction = ObservableList.Action.ADDED;
        this.expectedElements.add(foo);
        list.add(0, foo); //add foo as the first element

    }

    /**
    * Tests removing an item from the list.
    *
    */
    public void testRemove() {
        String bar = "bar";
        this.expectedAction = ObservableList.Action.REMOVED;
        this.expectedElements.add(bar);
        list.remove(bar);
    }
    
    /**
    * Tests removing an item from the list via an index
    *
    */
    public void testRemoveIndex() {
        String bar = "bar";
        this.expectedAction = ObservableList.Action.REMOVED;
        this.expectedElements.add(bar);
        list.remove(0);
    }
    
    /**
    * Tests removing items from the list by specifying fromIndex, toIndex
    *
    */
    public void testRemoveRange() {
        String bar = "bar";
        String baz = "baz";
        this.expectedAction = ObservableList.Action.REMOVED;
        this.expectedElements.add(bar);
        this.expectedElements.add(baz);
        list.removeRange(0, 2);
    }
}