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Collection of testing matchers extracted from Shoulda
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Fix links to callback matchers in README

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README.md

shoulda-matchers Gem Version Build Status Downloads

Official Documentation

shoulda-matchers provides Test::Unit- and RSpec-compatible one-liners that test common Rails functionality. These tests would otherwise be much longer, more complex, and error-prone.

Thank you to all the contributors.

ActiveModel Matchers

ActiveRecord Matchers

ActionController Matchers

  • filter_param tests parameter filtering configuration.
  • permit tests that an action places a restriction on the params hash.
  • redirect_to tests that an action redirects to a certain location.
  • render_template tests that an action renders a template.
  • render_with_layout tests that an action is rendered with a certain layout.
  • rescue_from tests usage of the rescue_from macro.
  • respond_with tests that an action responds with a certain status code.
  • route tests your routes.
  • set_session makes assertions on the session hash.
  • set_flash makes assertions on the flash hash.
  • use_after_action tests that a after_action callback is defined in your controller. (Aliased as use_after_filter.)
  • use_around_action tests that a around_action callback is defined in your controller. (Aliased as use_around_filter.)
  • use_before_action tests that a before_action callback is defined in your controller. (Aliased as use_before_filter.)

Independent Matchers

  • delegate_method tests that an object forwards messages to other, internal objects by way of delegation.

Installation

RSpec

Include the gem in your Gemfile:

group :test do
  gem 'shoulda-matchers', require: false
end

Then require the gem following rspec-rails in your rails_helper (or spec_helper if you're using RSpec 2.x):

require 'rspec/rails'
require 'shoulda/matchers'

Test::Unit

shoulda-matchers was originally a component of Shoulda, a meta-gem that also provides should and context syntax via shoulda-context. For this reason you'll want to include this gem in your Gemfile instead:

group :test do
  gem 'shoulda'
end

Non-Rails apps

Once it is loaded, shoulda-matchers automatically includes itself into your test framework. It will mix in the appropriate matchers for ActiveRecord, ActiveModel, and ActionController depending on the modules that are available at runtime. For instance, in order to use the ActiveRecord matchers, ActiveRecord must be present beforehand.

If your application is written against Rails, everything should "just work", as shoulda-matchers will most likely be declared after Rails in your Gemfile. If your application is written against another framework such as Sinatra or Padrino, you may have a different setup, so you will want to ensure that you are requiring shoulda-matchers after the components of Rails you are using. For instance, if you wanted to use and test against ActiveModel, you'd say:

gem 'activemodel'
gem 'shoulda-matchers'

and not:

gem 'shoulda-matchers'
gem 'activemodel'

Generating documentation

YARD is used to generate documentation, which can be viewed online. You can preview changes you make to the documentation locally by running

yard doc

from this directory. Then, open doc/index.html in your browser.

If you want to see a live preview as you work without having to run yard over and over again, keep this command running in a separate terminal session:

watchr docs.watchr

Versioning

shoulda-matchers follows Semantic Versioning 2.0 as defined at http://semver.org.

License

shoulda-matchers is copyright © 2006-2015 thoughtbot, inc. It is free software, and may be redistributed under the terms specified in the MIT-LICENSE file.

About thoughtbot

thoughtbot

shoulda-matchers is maintained and funded by thoughtbot, inc. The names and logos for thoughtbot are trademarks of thoughtbot, inc.

We are passionate about open source software. See our other projects. We are available for hire.

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