[HELP] FakeWeb is not working on my RSpec test

[EDEN]

Hi friends,

I'm new to FakeWeb and I'm trying to write an rspec test with it but
is always connecting to the online url instead of giving me the
registred_uri.

I already added the "FakeWeb.allow_net_connect = false" to the
spec_helper but even so it is always getting the online version,
bellow there is the test that im trying to run:

it "should add feed from meioemensagem" do
url = "http://www.meioemensagem.com.br/home/rss/geral.xml"
file = read_fixture_file("feeds/atartde.ultimasnoticias-
rss.xml") # this is the local file
FakeWeb.register_uri(:any, url, :response => file)

# this method reads the feed and saves it, it is working, but is
not reading the FakeWeb response
feed = Feed.add(url)
feed.should_not be_nil
feed.title.should == "RSS: Notícias Gerais!"
end

Thanks in advance,