ProjectBuilderConfiguration config = new DefaultProjectBuilderConfiguration();
projectBuilder.calculateConcreteState( project, config );
Build build = project.getBuild();
build.addFilter( "myDir/filters.properties" );
List filters = build.getFilters();
assertNotNull( "Concrete filters should not be null.", filters );
assertEquals( "Concrete filters should contain two entries.", 2, filters.size() );
assertFilterPresent( "concrete filters",