gistfile1.rb

require 'spec_helper'

describe SessionController do

  it "should show the login page at new action" do
    get :new
    response.should be_success
  end

  context "authentication failure" do

    before do
      User.should_receive(:authenticate).with('[email protected]', 'incorrect').and_return(nil)
      post :create, :login => { :email => "[email protected]", :password => 'incorrect' }
    end

    it "should render the login template" do
      response.should render_template("session/new")
    end

    it "should assign an alert message" do
      flash[:alert].should == "authentication.failure"
    end

  end

  context "authentication success" do

    before do
      @user = user = mock_model(User)
      User.should_receive(:authenticate).with("[email protected]", "foobar").and_return(@user)
      post :create, :login => { :email => "[email protected]", :password => "foobar" }
    end

    it "should redirect to the homepage after an successfull login" do
      response.should redirect_to(root_path)
      flash[:notice].should == "authentication.success"
    end

    it "should assign the user id to session[:user_id]" do
      session[:user_id].should == @user.id
    end

    it "should assign a flash message" do
      flash[:notice].should == "authentication.success"
    end

  end
end