ArtifactResolutionResult res = collect( a );
assertEquals( "Check artifact list", createSet( new Object[]{a.artifact, b.artifact, c.artifact, d.artifact} ),
res.getArtifacts() );
ArtifactFilter filter = new ExclusionSetFilter( new String[]{"b"} );
res = collect( a, filter );
assertEquals( "Check artifact list", createSet( new Object[]{a.artifact, c.artifact} ), res.getArtifacts() );
}