}

    // protected methods ------------------------------------------------------

    protected ConflictResolver getConflictResolver() {
        return conflictResolver;
    }

    protected void assertResolveConflict(
            ResolutionNode expectedNode, ResolutionNode actualNode1, ResolutionNode actualNode2) {
        ResolutionNode resolvedNode = getConflictResolver().resolveConflict(actualNode1, actualNode2);