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$ rm -rf spec/views $ rm -rf spec/helpers
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User Signup: A First Step
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The controller generator makes both the Users controller and a useful default test, which verifies that the new action responds properly to a GET request (Box 31); the code appears in Listing 524 This code should look familiar; it follows the exact same form as the Pages controller spec last seen in Section 331 (Listing 320)
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Listing 524 Testing the signup page
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spec/controllers/users_controller_specrb
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require 'spec_helper' describe UsersController do describe "GET 'new'" do it "should be successful" do get 'new' responseshould be_success end end end
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By construction, the Users controller already has the proper new action and
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newhtmlerb template to get this test to pass (Listing 525) (To view the page at /users/new, you might have to restart the server)
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Listing 525 Action for the new user (signup) page
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app/controllers/users_controllerrb
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class UsersController < ApplicationController def new end end
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To get back in the spirit of test-driven development, let s add a second (failing) test of our own by testing for a title that contains the string "Sign up" (Listing 526) Be sure to add render_views as we did in the Pages controller spec (Listing 320); otherwise, the test won t pass even after we add the proper title
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Listing 526 A test for the signup page title
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5: Filling in the Layout
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spec/controllers/users_controller_specrb
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require 'spec_helper' describe UsersController do render_views describe "GET 'new'" do it "should be successful" do get 'new' responseshould be_success end it "should have the right title" do get 'new' responseshould have_selector("title", :content => "Sign up") end end end
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This test uses the have_selector method we ve seen before (Section 331); note that, as in Section 331, have_selector needs the render_views line since it tests the view along with the action Of course, by design this test currently fails (Red) To get a custom title, we need to make an @title instance variable as in Section 333 We can thus get to Green with the code in Listing 527
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Listing 527 Setting the custom title for the new user page
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app/controllers/users_controllerrb
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class UsersController < ApplicationController def new @title = "Sign up" end end
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532 Signup URL
With the code from Section 531, we already have a working page for new users at /users/new, but recall from Table 51 that we want the URL to be /signup instead As in Section 52, we ll first write a test (Listing 528)
User Signup: A First Step
Listing 528 Simple integration test for user signup link
spec/requests/layout_links_specrb
require 'spec_helper' describe "LayoutLinks" do it "should have a signup page at '/signup'" do get '/signup' responseshould have_selector('title', :content => "Sign up") end end
Note that this is the same file as the one used for the other layout links, even though the Signup page is in a different controller Being able to hit pages in multiple controllers is one of the advantages of using integration tests The last step is to make a named route for signups We ll follow the examples from Listing 518 and add a match /signup rule for the signup URL (Listing 529)
Listing 529 A route for the signup page
config/routesrb
SampleApp::Applicationroutesdraw do get "users/new" match '/signup', :to => 'users#new'
match '/contact', :to => 'pages#contact' match '/about', :to => 'pages#about' match '/help', :to => 'pages#help' root :to => 'pages#home' end
Note that we have kept the rule get "users/new", which was generated automatically by the Users controller generation in Listing 523 Currently, this rule is necessary to route /users/new correctly, but it doesn t follow the proper REST conventions (Table 22), and we will eliminate it in Section 633
5: Filling in the Layout
At this point, the signup test in Listing 528 should pass All that s left is to add the proper link to the button on the Home page As with the other routes, match /signup gives us the named route signup_path, which we put to use in Listing 530
Listing 530 Linking the button to the Signup page
app/views/pages/homehtmlerb
<h1>Sample App</h1> <p> This is the home page for the <a href="http://railstutorialorg/">Ruby on Rails Tutorial</a> sample application </p> <%= link_to "Sign up now!", signup_path, :class => "signup_button round" %>
With that, we re done with the links and named routes, at least until we add a route for signing in ( 9) The resulting new user page (at the URL /signup) appears in Figure 510