Method testIsScopedPositive

core/test/com/google/inject/ScopesTest.java:759–815

()

  }

  public void testIsScopedPositive() {
    final Key<String> a = Key.get(String.class, named("A"));
    final Key<String> b = Key.get(String.class, named("B"));
    final Key<String> c = Key.get(String.class, named("C"));
    final Key<String> d = Key.get(String.class, named("D"));
    final Key<String> e = Key.get(String.class, named("E"));
    final Key<Object> f = Key.get(Object.class, named("F"));
    final Key<String> g = Key.get(String.class, named("G"));

    Module customBindings =
        new AbstractModule() {
          @Override
          protected void configure() {
            bindScope(CustomScoped.class, CUSTOM_SCOPE);
            bind(a).to(b);
            bind(b).to(c);
            bind(c).toProvider(Providers.of("c")).in(CUSTOM_SCOPE);
            bind(d).toProvider(Providers.of("d")).in(CustomScoped.class);
            bind(f).to(AnnotatedCustomScoped.class);
            install(
                new PrivateModule() {
                  @Override
                  protected void configure() {
                    bind(g).toProvider(Providers.of("g")).in(CustomScoped.class);
                    expose(g);
                  }
                });
          }

          @Provides
          @Named("E")
          @CustomScoped
          String provideE() {
            return "e";
          }
        };

    @SuppressWarnings("unchecked") // we know the module contains only bindings
    List<Element> moduleBindings = Elements.getElements(customBindings);
    ImmutableMap<Key<?>, Binding<?>> map = indexBindings(moduleBindings);
    assertFalse(isCustomScoped(map.get(a))); // linked bindings are not followed by modules
    assertFalse(isCustomScoped(map.get(b)));
    assertTrue(isCustomScoped(map.get(c)));
    assertTrue(isCustomScoped(map.get(d)));
    assertTrue(isCustomScoped(map.get(e)));
    assertFalse(isCustomScoped(map.get(f))); // annotated classes are not followed by modules
    assertTrue(isCustomScoped(map.get(g)));

    Injector injector = Guice.createInjector(customBindings);
    assertTrue(isCustomScoped(injector.getBinding(a)));
    assertTrue(isCustomScoped(injector.getBinding(b)));
    assertTrue(isCustomScoped(injector.getBinding(c)));
    assertTrue(isCustomScoped(injector.getBinding(d)));
    assertTrue(isCustomScoped(injector.getBinding(e)));
    assertTrue(isCustomScoped(injector.getBinding(f)));
    assertTrue(isCustomScoped(injector.getBinding(g)));
  }