/*******************************************************************************
* Copyright (c) 2010, 2013 Sonatype, Inc.
* 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:
* Sonatype, Inc. - initial API and implementation
*******************************************************************************/
package org.eclipse.aether.util.graph.visitor;
import static org.junit.Assert.*;
import java.util.List;
import org.eclipse.aether.graph.DependencyFilter;
import org.eclipse.aether.graph.DependencyNode;
import org.eclipse.aether.internal.test.util.DependencyGraphParser;
import org.junit.Test;
public class FilteringDependencyVisitorTest
{
private DependencyNode parse( String resource )
throws Exception
{
return new DependencyGraphParser( "visitor/filtering/" ).parseResource( resource );
}
@Test
public void testFilterCalledWithProperParentStack()
throws Exception
{
DependencyNode root = parse( "parents.txt" );
final StringBuilder buffer = new StringBuilder( 256 );
DependencyFilter filter = new DependencyFilter()
{
public boolean accept( DependencyNode node, List<DependencyNode> parents )
{
for ( DependencyNode parent : parents )
{
buffer.append( parent.getDependency().getArtifact().getArtifactId() );
}
buffer.append( "," );
return false;
}
};
FilteringDependencyVisitor visitor = new FilteringDependencyVisitor( new PreorderNodeListGenerator(), filter );
root.accept( visitor );
assertEquals( ",a,ba,cba,a,ea,", buffer.toString() );
}
}