private void visit(Resource resource) {
            if (resource != null) {
                String org, val;
                // Includes
                visit(resource.getIncludes());
                // Excludes
                visit(resource.getExcludes());
                // Directory
                org = resource.getDirectory();
                val = interpolate(org);
                if (org != val) {

        assertEquals(2, resource.getIncludes().size(), "Should have two includes");
        assertTrue(resource.getIncludes().contains("*.txt"), "Should contain *.txt");
        assertTrue(resource.getIncludes().contains("*.md"), "Should contain *.md");

        // Verify persistence
        Resource resourceAfter = project.getResources().get(0);
        assertEquals(2, resourceAfter.getIncludes().size(), "Should still have two includes");