code: @Test public void shouldNotProvideProxyUriForExternalResources() throws IOException {
    when(mockModelFactory.create()).thenReturn(createWroModelExternalModelStub());
    final WroManagerFactory managerFactory=new BaseWroManagerFactory().setModelFactory(mockModelFactory);
    victim=new ModelAsJsonRequestHandler();
    final Injector injector=InjectorBuilder.create(managerFactory).build();
    injector.inject(victim);
    victim.handle(mockRequest,mockResponse);
    assertEquals(readJsonFile("wroModel_external.json"),outputStream.toString());
  }
  