Content appears in my browser, but not in my test

a_problem.md

I can see the content fine in my browser, but it doesn't appear in the the test. I checked the page with save_and_open_page and the categories that I created isn't in the generated page. What am I missing here?

This is the error that I'm getting:

1. Categories index page when the user is signed in should be able to see a list of categories Failure/Error: page.should have_content category1.name expected there to be content "category-1" in "Gastos\n\n\n\n\n\n\n\n\nGastos\n\n\nHome\n\n\nAbout\n\n\nContact\n\n\n\nLogged in as\nfoo2@example.com\n\nEdit profile\nSign Out\n\n\n\n\n\n\n\nBrowse Categories\nName\n\n\n\n"

   ./spec/requests/categories_spec.rb:19:in `block (4 levels) in <top (required)>'

categories_controller.rb

class CategoriesController < ApplicationController
  def index
    @categories = Category.all
  end
end

categories_pages_spec.rb

require 'spec_helper'
include Warden::Test::Helpers

describe "Categories" do
  let(:user) { FactoryGirl.create(:user) }
  
  describe 'index page' do
    context 'when the user is signed in' do
      let(:category1) { FactoryGirl.create(:category, user: user) }
      let(:category2) { FactoryGirl.create(:category, user: user) }

      before(:each) do
        login_as user
        visit categories_path
      end

      it 'should be able to see a list of categories' do
        page.should have_content 'Browse Categories'
        page.should have_content category1.name
        page.should have_content category2.name
      end
    end
  end
end

factories.rb

FactoryGirl.define do
  factory :user do
    sequence(:email) { |n| "foo#{n}@example.com" }
    password 'secret'
    time_zone 'Hong Kong'
  end

  factory :category do
    user
    sequence(:name) { |n| "category-#{n}" }
  end
end

index.html.haml

%h1 Browse Categories
%table
  %tr
    %th Name
    %th
    %th
  - @categories.each do |category|
    %tr
      %td= link_to category.name, category
      %td= link_to 'Edit', edit_category_path(category)
      %td= link_to 'Destroy', category_path(category), method: :delete, confirm: 'Are you sure?'