第3章 ほぼ静的なページの作成 | Rails チュートリアル
http://railstutorial.jp/chapters/static-pages?version=4.0#top
こちらを参考に実装し、躓いた点を列挙してみる。
つまずかなかったところは普通に飛ばしてます。
環境
- Ruby 2.2.2
- Rails 4.2.1
$ rails new sample_app --skip-test-unit
$ cd sample_app
source 'https://rubygems.org'
ruby '2.0.0'
#ruby-gemset=railstutorial_rails_4_0
gem 'rails', '4.0.5'
group :development, :test do
gem 'sqlite3', '1.3.8'
gem 'rspec-rails', '2.13.1'
end
group :test do
gem 'selenium-webdriver', '2.35.1'
gem 'capybara', '2.1.0'
end
gem 'sass-rails', '4.0.5'
gem 'uglifier', '2.1.1'
gem 'coffee-rails', '4.0.1'
gem 'jquery-rails', '3.0.4'
gem 'turbolinks', '1.1.1'
gem 'jbuilder', '1.0.2'
group :doc do
gem 'sdoc', '0.3.20', require: false
end
group :production do
gem 'pg', '0.15.1'
gem 'rails_12factor', '0.0.2'
end
$ bundle install --without production
$ bundle update
つまづき!
config/initializers/secret_token.rb なんてない。。と思ったので新規作成。。
require 'securerandom'
def secure_token
token_file = Rails.root.join('.secret')
if File.exist?(token_file)
# Use the existing token.
File.read(token_file).chomp
else
# Generate a new token and store it in token_file.
token = SecureRandom.hex(64)
File.write(token_file, token)
token
end
end
SampleApp::Application.config.secret_key_base = secure_token
$ rails generate rspec:install
ここから本題
$ git checkout -b static-pages
$ rails generate controller StaticPages home help --no-test-framework
テスト駆動開発
$ rails generate integration_test static_pages
require 'spec_helper'
describe "Static pages" do
describe "Home page" do
it "should have the content 'Sample App'" do
visit '/static_pages/home'
expect(page).to have_content('Sample App')
end
end
end
Capybaraの設定追加
# This file is copied to spec/ when you run 'rails generate rspec:install'
.
.
.
RSpec.configure do |config|
.
.
.
config.include Capybara::DSL
end
$ bundle exec rspec spec/requests/static_pages_spec.rb
つまづき!
なんかエラーでた
/.../sample_app/spec/spec_helper.rb:87:in `block in <top (required)>': uninitialized constant Capybara (NameError)
rails_spec.rbに書くのがいいらしい
RSpec.configure do |config|
...
.
.
.
config.include Capybara::DSL
end
テスト実行は出来たけど、テストでエラーが発生
```bash
Failures:
1) StaticPages GET /static_pages should have the content 'Sample App'
Failure/Error: expect(page).to have_content('Sample App')
expected #has_content?("Sample App") to return true, got false
# ./spec/requests/static_pages_spec.rb:7:in `block (3 levels) in '
Finished in 0.32109 seconds (files took 6.05 seconds to load)
1 example, 1 failure
Failed examples:
rspec ./spec/requests/static_pages_spec.rb:5 # StaticPages GET /static_pages should have the content 'Sample App'
```
そもそも生成されたhtmlに'Sample App'が無いっていうエラー。
<h1>Sample App</h1>
<p>
This is the home page for the
<a href="http://railstutorial.jp/">Ruby on Rails Tutorial</a>
sample application.
</p>
で解消。
ページの追加
チュートリアルでは直にコーディングしているが、あえてrails generateで作成してみる
$ rails generate controller StaticPa
ges about --no-test-framework
conflict app/controllers/static_pages_controller.rb
Overwrite /.../sample_app/app/controllers/static_pages_controller.rb? (enter "h" for help) [Ynaqdh]
コンフリクトしたのでnをおしてみる
skip app/controllers/static_pages_controller.rb
route get 'static_pages/about'
invoke erb
exist app/views/static_pages
create app/views/static_pages/about.html.erb
invoke helper
identical app/helpers/static_pages_helper.rb
invoke assets
invoke coffee
identical app/assets/javascripts/static_pages.coffee
invoke scss
identical app/assets/stylesheets/static_pages.scss
コンフリクトしているファイル以外が生成されるみたい。
<h1>About Us</h1>
<p>Find me in app/views/static_pages/about.html.erb</p>
に変更してテスト
$ bundle exec rspec spec/requests/static_pages_spec.rb
Finished in 0.34315 seconds (files took 6.03 seconds to load)
2 examples, 0 failures
成功！