TreeNodeTest.java

/*
 * Copyright 2011-2012 Blazebit
 *
 * 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 com.blazebit.blazefaces.model;

import static org.junit.Assert.*;

import org.junit.Test;

public class TreeNodeTest {
	
	@Test
	public void shouldAddChildNodes() {
		TreeNode node = new DefaultTreeNode("Parent", null);
		
		new DefaultTreeNode("Child1", node);
		new DefaultTreeNode("Child2", node);
		
		assertEquals(2, node.getChildCount());
	}
	
	@Test
	public void shouldHaveParent() {		
		TreeNode root = new DefaultTreeNode("Parent", null);
		
		TreeNode child1 = new DefaultTreeNode("Child1", root);
		TreeNode child11 = new DefaultTreeNode("Child11", child1);
		
		assertEquals(root, child1.getParent());
		assertEquals(child1, child11.getParent());
	}
    
    @Test
	public void assigningParentShouldUpdateParentsChildren() {		
		TreeNode root = new DefaultTreeNode("Parent", null);
		
		TreeNode child1 = new DefaultTreeNode("Child1", root);
		TreeNode child2 = new DefaultTreeNode("Child2", root);
		
		assertEquals(root, child1.getParent());
        assertEquals(root, child2.getParent());
        
        child2.setParent(child1);
        
        assertEquals(child1, child2.getParent());
        assertFalse(root.getChildren().contains(child2));
        assertTrue(child1.getChildren().contains(child2));
	}
}