1.?rails generate controller Users new
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this line of code will generate a users controller and a new action,?
also a spec test file of?
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users_controller_spec.rb
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and also a route
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get "users/new"
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2. next, we will start another loop of test-driven development:
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first, we add another test into users_controller_spec.rb
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it "should have the right title" do get 'new' response.should have_selector('title', :content=>"Sign up")end?
note, we need add "render_views", to make sure the test will render views to test.
if not, the pass won't pass, even if we added the title.
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note, we used have_selector again.
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3. ok, cool, we got a failing test, next, let's make it pass.
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a. define a instance var into new method.
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@title = "Sign up"
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ok, done!
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4. we already got a route:
get "users/new"
but we don't want to use it, we want to use
"/signup"
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so let's define another route:
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match "/signup" => "users#new"
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But, wait, before we add this line of code to route, let's write failing test first:
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since we are going the test route of "/signup", which doesn't belong to any controller.
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so this test need to go to integration test.
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it "should have a sign up page at '/signup'" do get "/signup" response.should have_selector "title", :content => "Sign up"end
?ok, this test will fail, then we can add that route to make it pass!!!
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5. remember? that route will also create a helper:
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signup_path
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we can use this path in views, instead of hardcode paths.