src/it/maven-version/verify.bsh

import java.io.*;

import org.codehaus.plexus.util.*;

File outputFile = new File( basedir, "target/tree-M2.txt" );
File expectedFile = new File( basedir, "expected-M2.txt" );
if ( ! outputFile.exists() )
{
  outputFile = new File( basedir, "target/tree-M3.txt" );
  expectedFile = new File( basedir, "expected-M3.txt" );
}

String actual = FileUtils.fileRead( outputFile );
String expected = FileUtils.fileRead( expectedFile );

actual = actual.replaceAll( "[\n\r]+", "\n" );
expected = expected.replaceAll( "[\n\r]+", "\n" );

System.out.println( "Checking dependency tree..." );

if ( !actual.equals( expected ) )
{
    throw new Exception( "Unexpected dependency tree" );
}

return true;