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# Rails::Controller::Testing
This gem brings back `assigns` to your controller tests as well as `assert_template`
to both controller and integration tests.
Note: This gem is only useful once `assigns` and `assert_template` have been
removed from Rails.
## Installation
Add this line to your application's Gemfile:
gem 'rails-controller-testing'
And then execute:
$ bundle
Or install it yourself as:
$ gem install rails-controller-testing
### RSpec
See https://github.com/rspec/rspec-rails/issues/1393.
rspec-rails automatically integrates with this gem since version `3.5.0`.
Adding the gem to your `Gemfile` is sufficient.
If you use an older version of rspec-rails, you can manually include the
modules in your `rails_helper`.
```ruby
RSpec.configure do |config|
[:controller, :view, :request].each do |type|
config.include ::Rails::Controller::Testing::TestProcess, :type => type
config.include ::Rails::Controller::Testing::TemplateAssertions, :type => type
config.include ::Rails::Controller::Testing::Integration, :type => type
end
end
```
## Outside Rails
For projects and gems using controller tests outside of a Rails application,
invoke the `Rails::Controller::Testing.install` method inside your test suite
setup to include the required modules on controller test cases.
```ruby
# test/test_helper.rb
require 'rails-controller-testing'
Rails::Controller::Testing.install
```
## Usage
### assigns
`assigns` allows you to access the instance variables that have been passed to
your views.
```ruby
class PostsController < ActionController::Base
def index
@posts = Post.all
end
end
class PostControllerTest < ActionController::TestCase
def test_index
get :index
assert_equal Post.all, assigns(:posts)
end
end
```
### assert_template
`assert_template` allows to you assert that certain templates have been rendered.
```ruby
class PostControllerTest < ActionController::TestCase
def test_index
get :index
assert_template 'posts/index'
end
end
```
## Contributing
1. Fork it
2. Create your feature branch (`git checkout -b my-new-feature`)
3. Commit your changes (`git commit -am 'Add some feature'`)
4. Push to the branch (`git push origin my-new-feature`)
5. Create new Pull Request
|
