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POTesting and integrating plain ruby objects into a Rails 3.2 application
 

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  1. POTesting and integrating plain ruby objects into a Rails 3.2 application
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    <p>After watching the <a href="http://www.confreaks.com/videos/641-gogaruco2011-fast-rails-tests" rel="nofollow">Fasts Rails Tests</a> talk by Corey and reading through <a href="http://devblog.avdi.org/2011/11/15/early-access-beta-of-objects-on-rails-now-available-2/" rel="nofollow">Object on Rails</a> by Avdi I am in the process of setting up my new Rails 3.2 application to take advantage of these concepts.</p> <p>In order to get everything working I started with this example spec file.</p> <pre><code># spec_no_rails/projects/financials_spec.rb require_relative '../spec_no_rails_helper' class DummyProject include Modules::Projects::Financials end describe Modules::Projects::Financials do it 'should have some method' do DummyProject.new.foo.should == 'bar' end end </code></pre> <p>And this was the intialial spec_no_rails_helper.rb file that is used to require the modules</p> <pre><code># spec_no_rails/spec_no_rails_helper.rb Dir["#{Dir.pwd}/app/pimms/**/*.rb"].each { |file| require file } </code></pre> <p>I then set about creating the new example module.</p> <pre><code># app/pimms/modules/projects/financials.rb module Modules::Projects::Financials def foo 'bar' end end </code></pre> <p>In order to see that everything was going to work when I included the new stand alone module into one of my ActiveRecord classes I added the following line into one of my models.</p> <pre><code># app/models/project.rb class Project &lt; ActiveRecord::Base include Modules::Projects::Financials end </code></pre> <p>This allowed me to open up console and see that everything is working as expected.</p> <pre><code>&gt; Project.first.foo =&gt; "bar" </code></pre> <p>So at this stage I have defined a namespaced stand alone module defined under app/pimms/modules/projects/financials.rb which I can included into a Rails model and everything works as expected.</p> <p>The problem I'm having is when I try to run the specs I get the following.</p> <pre><code>&gt; bundle exec rspec spec_no_rails/ /Users/scott/Code/pimms/spec_no_rails/projects/financials_spec.rb:5:in `&lt;class:DummyProject&gt;': uninitialized constant DummyProject::Modules (NameError) from /Users/scott/Code/pimms/spec_no_rails/projects/financials_spec.rb:4:in `&lt;top (required)&gt;' from /Users/scott/.rvm/gems/ruby-1.9.3-p125/gems/rspec-core-2.8.0/lib/rspec/core/configuration.rb:698:in `load' from /Users/scott/.rvm/gems/ruby-1.9.3-p125/gems/rspec-core-2.8.0/lib/rspec/core/configuration.rb:698:in `block in load_spec_files' from /Users/scott/.rvm/gems/ruby-1.9.3-p125/gems/rspec-core-2.8.0/lib/rspec/core/configuration.rb:698:in `map' from /Users/scott/.rvm/gems/ruby-1.9.3-p125/gems/rspec-core-2.8.0/lib/rspec/core/configuration.rb:698:in `load_spec_files' from /Users/scott/.rvm/gems/ruby-1.9.3-p125/gems/rspec-core-2.8.0/lib/rspec/core/command_line.rb:22:in `run' from /Users/scott/.rvm/gems/ruby-1.9.3-p125/gems/rspec-core-2.8.0/lib/rspec/core/runner.rb:80:in `run_in_process' from /Users/scott/.rvm/gems/ruby-1.9.3-p125/gems/rspec-core-2.8.0/lib/rspec/core/runner.rb:69:in `run' from /Users/scott/.rvm/gems/ruby-1.9.3-p125/gems/rspec-core-2.8.0/lib/rspec/core/runner.rb:10:in `block in autorun' </code></pre> <p>So the reason this happens is because the Modules::Projects namespaces has not been defined when the tests are being run. I'm guesing I didn't have to define the Modules::Projects namespace when I used the module with the Rails application because Rails handled that for me.</p> <p>In order to get the test to run as expected I had to define the namespace in the spec_no_rails_helper.rb file like this.</p> <pre><code># spec_no_rails/spec_no_rails_helper.rb module Modules module Projects end end Dir["#{Dir.pwd}/app/pimms/**/*.rb"].each { |file| require file } </code></pre> <p>This obviously isn't ideal as I would have to manually create all the namespaces for any stand alone modules or classes that I wasnt to test outside of Rails.</p> <p>Is there a better way to setup my Rails application so that I can easily run a test suite without relying on Rails?</p>
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