155 lines
2.8 KiB
Markdown
155 lines
2.8 KiB
Markdown
---
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title: Rspec-rails
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category: Ruby
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---
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### About
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{: .-intro}
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RSpec is a Ruby library for testing. [rspec-rails](https://github.com/rspec/rspec-rails) is its Rails integration.
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- <https://rspec.info/>
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- <https://github.com/rspec/rspec-rails>
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### Spec tasks
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rake spec:controllers
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rake spec:helpers
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rake spec:lib
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rake spec:mailers
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rake spec:models
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rake spec:requests
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rake spec:routing
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rake spec:views
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### Models
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```rb
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# spec/models/*.rb
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describe MyModel do
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end
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```
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### Controllers
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```rb
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# spec/controllers/*.rb
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describe MyController do
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describe "POST update" do
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render_views #optional
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it "works" do
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post :update, { user: { name: "john" } }
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controller
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controller.send ...
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response
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expect(response).to be_success
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expect(response).to have_http_status(200)
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expect(response).to render_template("index")
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expect(response).to redirect_to '/..'
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expect(assigns :article).to eq article
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response.status
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end
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end
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end
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```
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### Request
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```js
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# spec/requests/*.rb
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describe "home page" do
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it "displays the user's username after successful login" do
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get "/login"
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post "/login", username: "jdoe", password: "secret"
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expect(response.status).to eql 200
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expect(response).to redirect_to(...)
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expect(response).to render_template(:show)
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expect(response.body).to include 'hello'
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follow_redirect!
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end
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end
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```
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### Routing
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```rb
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# spec/routing/*.rb
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describe "routing to profiles" do
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it "routes /profile/:username to profile#show for username" do
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expect(get: "/profiles/jsmith").to route_to(
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controller: "profiles",
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action: "show",
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username: "jsmith"
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)
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end
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it "does not expose a list of profiles" do
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expect(get: "/profiles").not_to be_routable
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end
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end
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```
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### Helpers
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```rb
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# spec/helpers/*.rb
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describe EventsHelper do
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describe "#link_to_event" do
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it "displays the title, and formatted date" do
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event = Event.new("Ruby Kaigi", Date.new(2010, 8, 27))
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# helper is an instance of ActionView::Base configured with the
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# EventsHelper and all of Rails' built-in helpers
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expect(helper.link_to_event).to match /Ruby Kaigi, 27 Aug, 2010/
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end
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end
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end
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```
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### Features
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```rb
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# spec/features/*.rb
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feature 'Signing in' do
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given(:something) { "hi" }
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background do
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User.make email: 'hi@gmail.com'
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end
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scenario 'Signing in with credentials' do
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end
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end
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```
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### Matchers
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```rb
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be_a_new(Widget) # new_record?
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render_template("new")
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render_template(partial: 'form', locals: {...})
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redirect_to(widgets_path)
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route_to(..)
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be_routable
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have_http_status(500)
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have_http_status(:created)
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```
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### Time helpers
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```
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travel_to Time.new(2014, 11, 14, 01, 04, 44)
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...
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travel_back
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travel_to Time.new(2014, 11, 14, 01, 04, 44) do
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...
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end
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```
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