require File.dirname(__FILE__) + '/../test_helper'
require 'user_controller'

# Re-raise errors caught by the controller.
class UserController; def rescue_action(e) raise e end; end

class UserControllerTest < Test::Unit::TestCase
  fixtures :users
  
  def setup
    @controller = UserController.new
    @request    = ActionController::TestRequest.new
    @response   = ActionController::TestResponse.new
    # This user is initially valid, but we may change its attributes.
    @valid_user = users(:valid_user)
  end

  # Make sure the registration page responds with the proper form.
  def test_registration_page
    get :register
    title = assigns(:title)
    assert_equal "Register", title
    assert_response :success
    assert_template "register"
    
    # Test the form and all its tags. 
    assert_tag "form", :attributes => { :action => "/user/register", 
                                        :method => "post" } 
    assert_tag   "input", 
                :attributes => { :name => "user[screen_name]", 
                                 :type => "text", 
                                 :size => User::SCREEN_NAME_SIZE, 
                                 :maxlength => User::SCREEN_NAME_MAX_LENGTH } 
    assert_tag   "input", 
                :attributes => { :name => "user[email]", 
                                 :type => "text", 
                                 :size => User::EMAIL_SIZE, 
                                 :maxlength => User::EMAIL_MAX_LENGTH } 
    assert_tag   "input", 
                :attributes => { :name => "user[password]", 
                                 :type => "password", 
                                 :size => User::PASSWORD_SIZE, 
                                 :maxlength => User::PASSWORD_MAX_LENGTH } 
    assert_tag   "input", :attributes => { :type => "submit", 
                                          :value => "Register!" } 
  end
  
  # Test a valid registration. 
  def test_registration_success 
    post :register, :user => { :screen_name => "new_screen_name", 
                                :email       => "valid@example.com", 
                               :password     => "long_enough_password" } 
    # Test assignment of user. 
    user = assigns(:user) 
    assert_not_nil user 
    # Test new user in database. 
    new_user = User.find_by_screen_name_and_password(user.screen_name, 
                                                     user.password) 
    assert_equal new_user, user 
    # Test flash and redirect. 
    assert_equal "User #{new_user.screen_name} created!", flash[:notice] 
    assert_redirected_to :action => "index" 
    
    # Make sure user is logged in properly.
    assert_not_nil session[:user_id]
    assert_equal user.id, session[:user_id]
  end 
  
  # Test an invalid registration 
  def test_registration_failure 
    post :register, :user => { :screen_name => "aa/noyes", 
                               :email => "anoyes@example,com", 
                               :password => "sun" } 
    assert_response :success 
    assert_template "register" 
    # Test display of error messages. 
    assert_tag "div", :attributes => { :id => "errorExplanation", 
                                       :class => "errorExplanation" } 
    # Assert that each form field has at least one error displayed. 
    assert_tag "li", :content => /Screen name/ 
    assert_tag "li", :content => /Email/ 
    assert_tag "li", :content => /Password/ 
    
    # Test to see that the input fields are being wrapped with the correct div. 
    error_div = { :tag => "div", :attributes => { :class => "fieldWithErrors" } } 
    
    assert_tag "input", 
               :attributes => { :name => "user[screen_name]", 
                                 :value => "aa/noyes" }, 
               :parent => error_div 
    assert_tag "input", 
               :attributes => { :name => "user[email]", 
                                 :value => "anoyes@example,com" }, 
               :parent => error_div 
    assert_tag "input", 
               :attributes => { :name => "user[password]", 
                                 :value => "sun" }, 
               :parent => error_div 
  end   
end