//   Copyright 2012 Georg-August-Universität Göttingen, Germany
//
//   Licensed under the Apache License, Version 2.0 (the "License");
//   you may not use this file except in compliance with the License.
//   You may obtain a copy of the License at
//
//       http://www.apache.org/licenses/LICENSE-2.0
//
//   Unless required by applicable law or agreed to in writing, software
//   distributed under the License is distributed on an "AS IS" BASIS,
//   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
//   See the License for the specific language governing permissions and
//   limitations under the License.

package de.ugoe.cs.autoquest.eventcore.guimodel;

import static org.junit.Assert.*;

import org.junit.Test;

/**
 * Test of {@link GUIElementTree}
 * @author Fabian Glaser
 *
 */
public class GUIElementTreeTest {

    @Test
    public void testAdd() throws Exception {
        GUIElementTree<Long> tree = new GUIElementTree<Long>();
        IGUIElementSpec spec = new MockGUIElementSpec();
        tree.add(10l, null, spec);
        
        assertEquals(1, tree.size());
    }
    
    @Test
    public void testAddWithParent() throws Exception {
        GUIElementTree<Long> tree = new GUIElementTree<Long>();
        IGUIElementSpec parentspec = new MockGUIElementSpec();
        IGUIElementSpec spec = new MockGUIElementSpec();
        tree.add(10l, null, parentspec);
        tree.add(20l, 10l, spec);
        
        assertEquals(2, tree.size());
        
        IGUIElement element = tree.find(20l);
        assertEquals(parentspec, element.getParent().getSpecification());
    }

    @Test
    public void testFindExisting() throws Exception {
        GUIElementTree<Long> tree = new GUIElementTree<Long>();
        IGUIElementSpec spec = new MockGUIElementSpec();
        tree.add(10l, 0l, spec);
        
        IGUIElement element = tree.find(10l);
        assertNotNull(element);
    }
    
    @Test
    public void testFindNonExisting() throws Exception {
        GUIElementTree<Long> tree = new GUIElementTree<Long>();
        assertEquals(tree.find(10l), null);
    }

    @Test
    public void testRemoveSingleElement() throws Exception {
        GUIElementTree<Long> tree = new GUIElementTree<Long>();
        IGUIElementSpec spec = new MockGUIElementSpec(); 
        tree.add(10l, null, spec);
        
        assertEquals(1, tree.size());
        assertEquals(1, tree.remove(10l));
    }
    
    @Test
    public void testRemoveWithChildElement() throws Exception {
        GUIElementTree<Long> tree = new GUIElementTree<Long>();
        IGUIElementSpec parentspec = new MockGUIElementSpec();
        IGUIElementSpec spec = new MockGUIElementSpec();
        tree.add(10l, null, parentspec);
        tree.add(20l, 10l, spec);
        
        assertEquals(2, tree.remove(10l));
        assertEquals(0, tree.size());
    }
    
    @Test
    public void testRemoveNonExisting(){
        GUIElementTree<Long> tree = new GUIElementTree<Long>();
        assertEquals(0, tree.remove(10l));
    }

    @Test
    public void testGetGUIModel() {
        GUIElementTree<Long> tree = new GUIElementTree<Long>();
        assertNotNull(tree.getGUIModel());
    }
}