Rails%203%20In%20Action

end
Setting up a testing environment
fill_in "Text", :with => "First post!"
click_button "Create Topic"
within "#flash_notice" do
page.should have_content("Topic has been created!")
end
within ".forem_topic #posts .forem_post" do
page.should have_content("First post!")
end
end
An obvious downside for writing this is that it’s not as human-friendly as a Cucumber
test is, but it’s close enough. Anybody with an extremely basic understanding of Ruby
should be able to understand everything here apart from the CSS selectors, which are
another class of their own. 15
There are a couple of benefits to using Capybara directly over using it in conjunction
Cucumber. First, it’s going to be faster because there’s no parsing of the steps as
there is in Cucumber—it’s straight method calls to the very same methods that Cucumber
uses. Second (and related), all the code for the feature is kept within one file.
You’re going to need to make some changes to your engine to install RSpec and
Capybara first.
17.4.1 Removing Test::Unit
At the moment in your application, you’ve got a test directory that uses Test::Unit for
testing. We’ve avoided this throughout the book, and this chapter’s not going to be
any exception to that rule. 16 You’re going to switch this over to using RSpec.
Inside this test directory, there is the test/test_helper.rb file that contains this
content:
# Configure Rails Environment
ENV["RAILS_ENV"] = "test"
require File.expand_path("../dummy/config/environment.rb", __FILE__)
require "rails/test_help"
Rails.backtrace_cleaner.remove_silencers!
# Load support files
Dir["#{File.dirname(__FILE__)}/support/**/*.rb"].each { |f| require f }
15 You could create a helper method here to help clarify what these mean, such as this assert_seen method
from the real forem engine:
https://github.com/radar/forem/blob/87092925e8f7092723e07e0adbae44ad96a45d01/spec
/integration/posts_spec.rb#L28
16 For two reasons. First, the authors prefer RSpec. Second, RSpec is preferred by the majority of people in the
community. There are still pockets of resistance though.
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