describe TokensController do
  before(:each) do
    @mock_user = User.new(:username => "bob", :email => "user@user.com", :password => "longpassword")
    @mock_user.role = "admin"
    sign_in @mock_user
    #Ability.stub!('can').and_return(true)
  end
  it "should let me see grids/:g_id/tokens index" do
    test_grid = mock_model(Grid)
    test_token = mock_model(Token)
    Grid.stub!(:find).and_return(test_grid)
    Token.stub!(:find).and_return(test_token)
    get 'index'

    a1 = Ability.new(@mock_user)
    a1.can?(:index, Token).should be_true # This line works fine; as it should
    puts response.status #This returns 403, which means CanCan::AccessDenied was raised
  end
end

authorize! :take_over, @the_world

before do
  @user = Factory.create(:user)
    sign_in @user

    @abilities = Ability.new(@user)
    Ability.stub(:new).and_return(@abilities)
  end
end

user = User.create!(:admin => true) # I recommend a factory for this
# log in user however you like, alternatively stub `current_user` method
session[:user_id] = user.id
get :index
assert_template :index # render the template since he should have access

def setup
  @ability = Object.new
  @ability.extend(CanCan::Ability)
  @controller.stubs(:current_ability).returns(@ability)
end

test "render index if have read ability on project" do
  @ability.can :read, Project
  get :index
  assert_template :index
end

can :manage, :all do
  user.is_ultrasuper == 1
end

one:
  id: 1
  username: my_username
  is_ultrasuper: 1

let!(:user) {create :user}
before { login_user_request user}

it "grants admin access to show action" do
  expect{ get :show, {id: user.id} }.to be_authorized
end
it "denies user access to edit action" do
  expect{ get :edit, {id: user.id} }.to be_un_authorized
end

RSpec::Matchers.define :be_authorized do
  match do |block|
    block.call
    expect(response).to be_success
  end

  def supports_block_expectations?
    true
  end
end

RSpec::Matchers.define :be_un_authorized do
  match do |block|
    expect{
      block.call
    }.to raise_error(Pundit::NotAuthorizedError)
  end

  def supports_block_expectations?
    true
  end
end