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/*******************************************************************************
* Copyright (c) 2009 Oracle. All rights reserved.
* This program and the accompanying materials are made available under the
* terms of the Eclipse Public License v1.0, which accompanies this distribution
* and is available at http://www.eclipse.org/legal/epl-v10.html.
*
* Contributors:
* Oracle - initial API and implementation
******************************************************************************/
package org.eclipse.jpt.utility.tests.internal.iterables;
import java.util.ArrayList;
import java.util.Collection;
import java.util.Iterator;
import junit.framework.TestCase;
import org.eclipse.jpt.utility.internal.iterables.TreeIterable;
import org.eclipse.jpt.utility.tests.internal.TestTools;
@SuppressWarnings("nls")
public class TreeIterableTests extends TestCase {
/** this will be populated with all the nodes created for the test */
Collection<TreeNode> nodes = new ArrayList<TreeNode>();
public TreeIterableTests(String name) {
super(name);
}
@Override
protected void tearDown() throws Exception {
TestTools.clear(this);
super.tearDown();
}
public void testIterator() {
for (TreeNode tn : this.buildTreeIterable()) {
assertTrue(this.nodes.contains(tn));
}
}
private Iterable<TreeNode> buildTreeIterable() {
return new TreeIterable<TreeNode>(this.buildTree()) {
@Override
public Iterator<TreeNode> children(TreeNode next) {
return next.children();
}
};
}
private TreeNode buildTree() {
TreeNode root = new TreeNode("root");
TreeNode child1 = new TreeNode(root, "child 1");
new TreeNode(child1, "grandchild 1A");
TreeNode child2 = new TreeNode(root, "child 2");
new TreeNode(child2, "grandchild 2A");
TreeNode grandchild2B = new TreeNode(child2, "grandchild 2B");
new TreeNode(grandchild2B, "great-grandchild 2B1");
new TreeNode(grandchild2B, "great-grandchild 2B2");
TreeNode grandchild2C = new TreeNode(child2, "grandchild 2C");
new TreeNode(grandchild2C, "great-grandchild 2C1");
new TreeNode(root, "child 3");
return root;
}
public class TreeNode {
private String name;
private Collection<TreeNode> children = new ArrayList<TreeNode>();
public TreeNode(String name) {
super();
TreeIterableTests.this.nodes.add(this); // log node
this.name = name;
}
public TreeNode(TreeNode parent, String name) {
this(name);
parent.addChild(this);
}
public String getName() {
return this.name;
}
private void addChild(TreeNode child) {
this.children.add(child);
}
public Iterator<TreeNode> children() {
return this.children.iterator();
}
public int childrenSize() {
return this.children.size();
}
@Override
public String toString() {
return "TreeNode(" + this.name + ")";
}
}
}
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