I gave to Google Guice the responsability of wiring my objects. But, How can I test if the bindings are working well.

For example, suppose we have a class A which has a dependence B. How can I test than B is injected correctly.

  class A {
    private B b;

    public A() {}

    @Inject
    public void setB(B b) {
      this.b = b
    }
  }

Notice A hasn't got a getB() method and I want to assert that A.b isn't null.