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<?xml version="1.0" encoding="utf-8"?>
<feed xmlns="http://www.w3.org/2005/Atom">
<title><![CDATA[Serj L aka Loremaster]]></title>
<link href="http://bloginius.com/atom.xml" rel="self"/>
<link href="http://bloginius.com/"/>
<updated>2018-02-05T16:16:02+03:00</updated>
<id>http://bloginius.com/</id>
<author>
<name><![CDATA[Serj L aka Loremaster]]></name>
</author>
<generator uri="http://octopress.org/">Octopress</generator>
<entry>
<title type="html"><![CDATA[Restart Failing Tests in Rspec 3]]></title>
<link href="http://bloginius.com/blog/2015/12/28/rspec-restart-failing-tests/"/>
<updated>2015-12-28T19:16:29+03:00</updated>
<id>http://bloginius.com/blog/2015/12/28/rspec-restart-failing-tests</id>
<content type="html"><![CDATA[<p>As good developers we write code. Since ruby is so dynamic we need a good test coverage to make sure that our app works. Part of our test suit for web apps is features or integration tests.</p>
<p>Unfortunately integration tests can fail from time to time. It’s quite hard to fix such tests. It doesn’t mean that we shouldn’t fix them but sometimes we need to deal with them in some other way. I like rspec and I use it for the whole test suite. Here I want to show you how can you <strong>restart failed tests</strong>.</p>
<!-- more -->
<p>Developers of rspec recently added this very nice feature which allows you to restart failed specs. First of all make sure that you have Rspec 3.4 or higher:</p>
<figure class='code'><figcaption><span>Gemfile </span></figcaption>
<div class="highlight"><table><tr><td class="gutter"><pre class="line-numbers"><span class='line-number'>1</span>
<span class='line-number'>2</span>
<span class='line-number'>3</span>
</pre></td><td class='code'><pre><code class='ruby'><span class='line'><span class="n">group</span> <span class="ss">:development</span><span class="p">,</span> <span class="ss">:test</span> <span class="k">do</span>
</span><span class='line'> <span class="n">gem</span> <span class="s1">'rspec-rails'</span><span class="p">,</span> <span class="s1">'3.4.0'</span>
</span><span class='line'><span class="k">end</span>
</span></code></pre></td></tr></table></div></figure>
<p>Now open your spec_helper and add this line:</p>
<figure class='code'><figcaption><span>spec/spec_helper.rb </span></figcaption>
<div class="highlight"><table><tr><td class="gutter"><pre class="line-numbers"><span class='line-number'>1</span>
<span class='line-number'>2</span>
<span class='line-number'>3</span>
</pre></td><td class='code'><pre><code class='ruby'><span class='line'><span class="no">RSpec</span><span class="o">.</span><span class="n">configure</span> <span class="k">do</span> <span class="o">|</span><span class="n">config</span><span class="o">|</span>
</span><span class='line'> <span class="n">config</span><span class="o">.</span><span class="n">example_status_persistence_file_path</span> <span class="o">=</span> <span class="s2">"</span><span class="si">#{</span><span class="no">Rails</span><span class="o">.</span><span class="n">root</span><span class="si">}</span><span class="s2">/spec/specs_with_statuses.txt"</span>
</span><span class='line'><span class="k">end</span>
</span></code></pre></td></tr></table></div></figure>
<p>You need to specify file which will store tests statuses. I recommend to add this file to gitignore:</p>
<figure class='code'><figcaption><span>.gitignore </span></figcaption>
<div class="highlight"><table><tr><td class="gutter"><pre class="line-numbers"><span class='line-number'>1</span>
</pre></td><td class='code'><pre><code class='bash'><span class='line'>/spec/specs_with_statuses.txt
</span></code></pre></td></tr></table></div></figure>
<p>Now after running your specs you can run your failing tests:</p>
<figure class='code'><figcaption><span>Terminal </span></figcaption>
<div class="highlight"><table><tr><td class="gutter"><pre class="line-numbers"><span class='line-number'>1</span>
<span class='line-number'>2</span>
</pre></td><td class='code'><pre><code class='bash'><span class='line'><span class="nv">$ </span>bundle <span class="nb">exec </span>rspec
</span><span class='line'><span class="nv">$ </span>bundle <span class="nb">exec </span>rspec --only-failures
</span></code></pre></td></tr></table></div></figure>
<p>Running spec suit will fill file from example_status_persistence_file_path with tests and their statuses.</p>
<p>You can create simple shell script to run your test suit and rerun failed tests. Here it is:</p>
<figure class='code'><figcaption><span>run_tests.sh </span></figcaption>
<div class="highlight"><table><tr><td class="gutter"><pre class="line-numbers"><span class='line-number'>1</span>
<span class='line-number'>2</span>
<span class='line-number'>3</span>
<span class='line-number'>4</span>
<span class='line-number'>5</span>
<span class='line-number'>6</span>
<span class='line-number'>7</span>
<span class='line-number'>8</span>
</pre></td><td class='code'><pre><code class='bash'><span class='line'><span class="nb">echo</span> <span class="s2">"$ bundle exec rake db:test:prepare"</span>
</span><span class='line'>bundle <span class="nb">exec </span>rake db:test:prepare
</span><span class='line'>
</span><span class='line'><span class="nb">echo</span> <span class="s2">"$ bundle exec rspec"</span>
</span><span class='line'>bundle <span class="nb">exec </span>rspec
</span><span class='line'>
</span><span class='line'><span class="nb">echo</span> <span class="s2">"$ bundle exec rspec --only-failures"</span>
</span><span class='line'>bundle <span class="nb">exec </span>rspec --only-failures
</span></code></pre></td></tr></table></div></figure>
<p>It can be useful if you use CI server where you can just point to run this shell script. It can be also quite useful to use locally to re-rerun failures automatically instead of typing command to every time.</p>
<p>I hope this article was useful for you!</p>
]]></content>
</entry>
<entry>
<title type="html"><![CDATA[Another Guide to Upgrade to Rails 4.1]]></title>
<link href="http://bloginius.com/blog/2014/08/01/another-guide-to-upgrade-to-rails-4-dot-1/"/>
<updated>2014-08-01T16:03:05+04:00</updated>
<id>http://bloginius.com/blog/2014/08/01/another-guide-to-upgrade-to-rails-4-dot-1</id>
<content type="html"><![CDATA[<p>Rails 4.1 is pretty nice release, but upgrade to this version may be painful. In this post I’ll try to help you.</p>
<p>First of all, you need to install the latest version of Rails.</p>
<figure class='code'><figcaption><span>Gemfile </span></figcaption>
<div class="highlight"><table><tr><td class="gutter"><pre class="line-numbers"><span class='line-number'>1</span>
<span class='line-number'>2</span>
</pre></td><td class='code'><pre><code class='ruby'><span class='line'><span class="n">gem</span> <span class="s1">'rails'</span><span class="p">,</span> <span class="s1">'4.1.2'</span>
</span><span class='line'><span class="n">gem</span> <span class="s1">'sass-rails'</span><span class="p">,</span> <span class="s1">'~> 4.0.3'</span>
</span></code></pre></td></tr></table></div></figure>
<p>After that read <a href="http://guides.rubyonrails.org/upgrading_ruby_on_rails.html#upgrading-from-rails-4-0-to-rails-4-1">official rails guide to upgrade to rails 4.1</a>, because I don’t want to talk about these details. Just don’t touch section about Spring, I’ll tell what to do with that.</p>
<!-- more -->
<h3>Shoulda-matchers</h3>
<p>If you use <code>shoulda-matchers</code>, then you may see errors in your specs. To make shoulda-matchers work properly you need to install at least this version:</p>
<figure class='code'><figcaption><span>Gemfile </span></figcaption>
<div class="highlight"><table><tr><td class="gutter"><pre class="line-numbers"><span class='line-number'>1</span>
</pre></td><td class='code'><pre><code class='ruby'><span class='line'><span class="n">gem</span> <span class="s1">'shoulda-matchers'</span><span class="p">,</span> <span class="s1">'~> 2.6.1'</span><span class="p">,</span> <span class="nb">require</span><span class="p">:</span> <span class="kp">false</span>
</span></code></pre></td></tr></table></div></figure>
<p>Only this version (and higher) is compatible with Rails 4.1. After running:</p>
<figure class='code'><figcaption><span>Terminal </span></figcaption>
<div class="highlight"><table><tr><td class="gutter"><pre class="line-numbers"><span class='line-number'>1</span>
</pre></td><td class='code'><pre><code class='bash'><span class='line'><span class="nv">$ </span>bundle
</span></code></pre></td></tr></table></div></figure>
<p>You also need to replace in spec_helper.rb this line:</p>
<figure class='code'><figcaption><span>spec_helper.rb </span></figcaption>
<div class="highlight"><table><tr><td class="gutter"><pre class="line-numbers"><span class='line-number'>1</span>
</pre></td><td class='code'><pre><code class='ruby'><span class='line'><span class="nb">require</span> <span class="s1">'shoulda/matchers/integrations/rspec'</span>
</span></code></pre></td></tr></table></div></figure>
<p>By these two:</p>
<figure class='code'><figcaption><span>spec_helper.rb </span></figcaption>
<div class="highlight"><table><tr><td class="gutter"><pre class="line-numbers"><span class='line-number'>1</span>
<span class='line-number'>2</span>
</pre></td><td class='code'><pre><code class='ruby'><span class='line'><span class="nb">require</span> <span class="s2">"shoulda/matchers"</span>
</span><span class='line'><span class="nb">require</span> <span class="s2">"shoulda/matchers/integrations/rspec"</span>
</span></code></pre></td></tr></table></div></figure>
<p>This fix should be enough.</p>
<h3>Bullet</h3>
<p>Bullet also generates some errors. Solution is very easy:</p>
<figure class='code'><figcaption><span>Gemfile </span></figcaption>
<div class="highlight"><table><tr><td class="gutter"><pre class="line-numbers"><span class='line-number'>1</span>
</pre></td><td class='code'><pre><code class='ruby'><span class='line'><span class="n">gem</span> <span class="s1">'bullet'</span><span class="p">,</span> <span class="s1">'~> 4.9.0'</span>
</span></code></pre></td></tr></table></div></figure>
<h3>Squel</h3>
<p>Well, by the time when I was doing the upgrade everything was <a href="https://github.com/activerecord-hackery/squeel/issues/307">baaaaaaad</a>. So I decided to remove the Squeel to exclude this dependency and to finally make the upgrade. Nowadays Squeel <a href="https://github.com/activerecord-hackery/squeel/pull/317">supports</a> Rails 4.1 (and as I know Rails 4.2 alpha). Yep, I am so lucky that when I has removed Squeel from the project, then it received Rails 4.1 support. Such fail. So ‘lucky’. Wow.</p>
<h3>Acts As Taggable</h3>
<p>You may have such exceptions:</p>
<figure class='code'><div class="highlight"><table><tr><td class="gutter"><pre class="line-numbers"><span class='line-number'>1</span>
</pre></td><td class='code'><pre><code class=''><span class='line'>wrong number of arguments (1 for 2)</span></code></pre></td></tr></table></div></figure>
<p>For the method <code>tagged_with</code>. To solve this problem you need to update the gem version and run new migration:</p>
<figure class='code'><figcaption><span>Gemfile </span></figcaption>
<div class="highlight"><table><tr><td class="gutter"><pre class="line-numbers"><span class='line-number'>1</span>
</pre></td><td class='code'><pre><code class='ruby'><span class='line'><span class="n">gem</span> <span class="s1">'acts-as-taggable-on'</span><span class="p">,</span> <span class="s1">'~> 3.2.6'</span>
</span></code></pre></td></tr></table></div></figure>
<figure class='code'><figcaption><span>Terminal </span></figcaption>
<div class="highlight"><table><tr><td class="gutter"><pre class="line-numbers"><span class='line-number'>1</span>
<span class='line-number'>2</span>
<span class='line-number'>3</span>
</pre></td><td class='code'><pre><code class='bash'><span class='line'><span class="nv">$ </span>bundle
</span><span class='line'><span class="nv">$ </span>rake acts_as_taggable_on_engine:install:migrations
</span><span class='line'><span class="nv">$ </span>rake db:migrate
</span></code></pre></td></tr></table></div></figure>
<h3>Thinking Sphinx</h3>
<p>Comment the thinking sphinx gem after the upgrade and bundle:</p>
<figure class='code'><figcaption><span>Gemfile </span></figcaption>
<div class="highlight"><table><tr><td class="gutter"><pre class="line-numbers"><span class='line-number'>1</span>
</pre></td><td class='code'><pre><code class='ruby'><span class='line'><span class="c1">#gem 'thinking-sphinx'</span>
</span></code></pre></td></tr></table></div></figure>
<figure class='code'><figcaption><span>Terminal </span></figcaption>
<div class="highlight"><table><tr><td class="gutter"><pre class="line-numbers"><span class='line-number'>1</span>
</pre></td><td class='code'><pre><code class='bash'><span class='line'><span class="nv">$ </span>bundle
</span></code></pre></td></tr></table></div></figure>
<p>Then install this specific version from the brunch on github:</p>
<figure class='code'><figcaption><span>Gemfile </span></figcaption>
<div class="highlight"><table><tr><td class="gutter"><pre class="line-numbers"><span class='line-number'>1</span>
</pre></td><td class='code'><pre><code class='ruby'><span class='line'><span class="n">gem</span> <span class="s1">'thinking-sphinx'</span><span class="p">,</span> <span class="s1">'~> 3.1.1'</span><span class="p">,</span> <span class="ss">git</span><span class="p">:</span> <span class="s1">'git://github.com/pat/thinking-sphinx.git'</span><span class="p">,</span> <span class="ss">branch</span><span class="p">:</span> <span class="s1">'develop'</span><span class="p">,</span> <span class="ss">ref</span><span class="p">:</span> <span class="s1">'c8f549f689'</span>
</span></code></pre></td></tr></table></div></figure>
<p>This version includes many fixes for Rails 4.1, including fixes for polymorphic associations (yep, I found few bugs and posted them to Pat, he fixed everything. And this is awesome!).</p>
<h3>Rails-admin</h3>
<p>If you use <code>0.6.2</code> version and Rails 4.1.2 then you’ll meet this exception if you’ll try to create record in admin’s panel:</p>
<figure class='code'><div class="highlight"><table><tr><td class="gutter"><pre class="line-numbers"><span class='line-number'>1</span>
</pre></td><td class='code'><pre><code class=''><span class='line'>ActiveModel::ForbiddenAttributesError</span></code></pre></td></tr></table></div></figure>
<p>Because new version hasn’t been released yet, you need to install specific version from master:</p>
<figure class='code'><figcaption><span>Gemfile </span></figcaption>
<div class="highlight"><table><tr><td class="gutter"><pre class="line-numbers"><span class='line-number'>1</span>
</pre></td><td class='code'><pre><code class='ruby'><span class='line'><span class="n">gem</span> <span class="s1">'rails_admin'</span><span class="p">,</span> <span class="s1">'0.6.2'</span><span class="p">,</span> <span class="ss">git</span><span class="p">:</span> <span class="s1">'git://github.com/sferik/rails_admin.git'</span><span class="p">,</span> <span class="ss">branch</span><span class="p">:</span> <span class="s1">'master'</span><span class="p">,</span> <span class="ss">ref</span><span class="p">:</span> <span class="s1">'02ba1dab32d'</span>
</span></code></pre></td></tr></table></div></figure>
<h3>_attributes</h3>
<p>Well, I think a lot of people have ever used nested attributes. So, if you’ll create nested params in form manually then this topic may be interesting for you. The thing is that you can’t pass data like in that way:</p>
<figure class='code'><figcaption><span></span></figcaption><div class="highlight"><table><tr><td class="gutter"><pre class="line-numbers"><span class='line-number'>1</span>
</pre></td><td class='code'><pre><code class='ruby'><span class='line'><span class="p">{</span><span class="n">some_data</span><span class="p">:</span> <span class="p">{</span><span class="o">.</span><span class="n">.</span><span class="o">.</span><span class="p">}}</span>
</span></code></pre></td></tr></table></div></figure>
<p>You need to pass it by this way:</p>
<figure class='code'><figcaption><span></span></figcaption><div class="highlight"><table><tr><td class="gutter"><pre class="line-numbers"><span class='line-number'>1</span>
</pre></td><td class='code'><pre><code class='ruby'><span class='line'><span class="p">{</span><span class="n">some_data_attributes</span><span class="p">:</span> <span class="p">{</span><span class="o">.</span><span class="n">.</span><span class="o">.</span><span class="p">}}</span>
</span></code></pre></td></tr></table></div></figure>
<p>Yes, it’s Rails-way and bla-bla-bla. But the thing is that key <code>some_data</code> WORKED somehow before, which is weird. But the most weird thing is that if you’ll continue to use it then you’ll receive this super weird exception:</p>
<figure class='code'><figcaption><span></span></figcaption><div class="highlight"><table><tr><td class="gutter"><pre class="line-numbers"><span class='line-number'>1</span>
</pre></td><td class='code'><pre><code class='ruby'><span class='line'><span class="no">Expected</span> <span class="no">SomeData</span> <span class="n">but</span> <span class="n">received</span> <span class="nb">Array</span><span class="o">.</span>
</span></code></pre></td></tr></table></div></figure>
<p>So, now you know what that mean. I wasted A LOT of hours trying to debug that.</p>
<h3>Spring</h3>
<p>Spring is app preloader, which is built in Rails core now. It allows you to speed up running task (such as Rails console), which is very nice. Installation is simple:</p>
<figure class='code'><figcaption><span>Gemfile </span></figcaption>
<div class="highlight"><table><tr><td class="gutter"><pre class="line-numbers"><span class='line-number'>1</span>
<span class='line-number'>2</span>
<span class='line-number'>3</span>
</pre></td><td class='code'><pre><code class='ruby'><span class='line'><span class="n">group</span> <span class="ss">:development</span> <span class="k">do</span>
</span><span class='line'> <span class="n">gem</span> <span class="s1">'spring'</span>
</span><span class='line'><span class="k">end</span>
</span></code></pre></td></tr></table></div></figure>
<figure class='code'><figcaption><span>Terminal </span></figcaption>
<div class="highlight"><table><tr><td class="gutter"><pre class="line-numbers"><span class='line-number'>1</span>
<span class='line-number'>2</span>
</pre></td><td class='code'><pre><code class='bash'><span class='line'><span class="nv">$ </span>bundle
</span><span class='line'><span class="nv">$ </span>bundle <span class="nb">exec </span>spring binstub --all
</span></code></pre></td></tr></table></div></figure>
<p>After that you can install binstubs for cucumber and rspec. You know, just for fun (even if you don’t have them, ha):</p>
<figure class='code'><figcaption><span>Gemfile </span></figcaption>
<div class="highlight"><table><tr><td class="gutter"><pre class="line-numbers"><span class='line-number'>1</span>
<span class='line-number'>2</span>
<span class='line-number'>3</span>
<span class='line-number'>4</span>
</pre></td><td class='code'><pre><code class='ruby'><span class='line'><span class="n">group</span> <span class="ss">:development</span> <span class="k">do</span>
</span><span class='line'> <span class="n">gem</span> <span class="s1">'spring-commands-rspec'</span>
</span><span class='line'> <span class="n">gem</span> <span class="s1">'spring-commands-cucumber'</span>
</span><span class='line'><span class="k">end</span>
</span></code></pre></td></tr></table></div></figure>
<figure class='code'><figcaption><span>Terminal </span></figcaption>
<div class="highlight"><table><tr><td class="gutter"><pre class="line-numbers"><span class='line-number'>1</span>
<span class='line-number'>2</span>
<span class='line-number'>3</span>
</pre></td><td class='code'><pre><code class='bash'><span class='line'><span class="nv">$ </span>bundle <span class="nb">exec </span>spring binstub cucumber
</span><span class='line'><span class="nv">$ </span>bundle <span class="nb">exec </span>spring binstub rspec
</span><span class='line'><span class="nv">$ </span>spring stop
</span></code></pre></td></tr></table></div></figure>
<p>Now you can run your tests. Don’t forger to run them via <code>bin/rspec</code> and <code>bin/cucumber</code> to use Spring. There is one gotcha with Spring, which you can read about in the next section.</p>
<h3>Parallel_tests</h3>
<p>Here is the gotcha. It doesn’t work with Spring. It’s very, very sad. Why? Because parallel_test is big help for you tests. Read <a href="https://github.com/grosser/parallel_tests">here more why it awesome</a>.</p>
<p>So, you’ll get such exceptions:</p>
<figure class='code'><figcaption><span></span></figcaption><div class="highlight"><table><tr><td class="gutter"><pre class="line-numbers"><span class='line-number'>1</span>
<span class='line-number'>2</span>
<span class='line-number'>3</span>
<span class='line-number'>4</span>
<span class='line-number'>5</span>
<span class='line-number'>6</span>
<span class='line-number'>7</span>
<span class='line-number'>8</span>
</pre></td><td class='code'><pre><code class='ruby'><span class='line'><span class="no">Failure</span><span class="o">/</span><span class="ss">Error</span><span class="p">:</span> <span class="no">Unable</span> <span class="n">to</span> <span class="n">find</span> <span class="n">matching</span> <span class="n">line</span> <span class="n">from</span> <span class="n">backtrace</span>
</span><span class='line'> <span class="ss">ActiveRecord</span><span class="p">:</span><span class="ss">:StatementInvalid</span><span class="p">:</span>
</span><span class='line'> <span class="ss">PG</span><span class="p">:</span><span class="ss">:TRDeadlockDetected</span><span class="p">:</span> <span class="ss">ERROR</span><span class="p">:</span> <span class="n">deadlock</span> <span class="n">detected</span>
</span><span class='line'> <span class="no">LINE</span> <span class="mi">1</span><span class="p">:</span> <span class="no">SELECT</span> <span class="s2">"contact_types"</span><span class="o">.</span><span class="n">*</span> <span class="no">FROM</span> <span class="s2">"contact_types"</span> <span class="no">WHERE</span> <span class="s2">"conta...</span>
</span><span class='line'><span class="s2"> ^</span>
</span><span class='line'><span class="s2"> DETAIL: Process 70359 waits for AccessShareLock on relation 24882218 of database 7594218; blocked by process 70358.</span>
</span><span class='line'><span class="s2"> Process 70358 waits for AccessExclusiveLock on relation 24888649 of database 7594218; blocked by process 70359.</span>
</span><span class='line'><span class="s2"> HINT: See server log for query details.</span>
</span></code></pre></td></tr></table></div></figure>
<p>But there is workaround! Open <code>config/spring.rb</code> and paste:</p>
<figure class='code'><figcaption><span>config/spring.rb </span></figcaption>
<div class="highlight"><table><tr><td class="gutter"><pre class="line-numbers"><span class='line-number'>1</span>
<span class='line-number'>2</span>
<span class='line-number'>3</span>
<span class='line-number'>4</span>
<span class='line-number'>5</span>
<span class='line-number'>6</span>
<span class='line-number'>7</span>
<span class='line-number'>8</span>
<span class='line-number'>9</span>
<span class='line-number'>10</span>
<span class='line-number'>11</span>
<span class='line-number'>12</span>
<span class='line-number'>13</span>
<span class='line-number'>14</span>
<span class='line-number'>15</span>
<span class='line-number'>16</span>
<span class='line-number'>17</span>
<span class='line-number'>18</span>
</pre></td><td class='code'><pre><code class='ruby'><span class='line'><span class="nb">require</span> <span class="s2">"active_support/core_ext/module/aliasing"</span>
</span><span class='line'><span class="nb">require</span> <span class="s2">"spring/application"</span>
</span><span class='line'>
</span><span class='line'><span class="k">class</span> <span class="nc">Spring</span><span class="o">::</span><span class="no">Application</span>
</span><span class='line'> <span class="k">def</span> <span class="nf">connect_database_with_reconfigure_database</span>
</span><span class='line'> <span class="n">disconnect_database</span>
</span><span class='line'> <span class="n">reconfigure_database</span>
</span><span class='line'> <span class="n">connect_database_without_reconfigure_database</span>
</span><span class='line'> <span class="k">end</span>
</span><span class='line'>
</span><span class='line'> <span class="n">alias_method_chain</span> <span class="ss">:connect_database</span><span class="p">,</span> <span class="ss">:reconfigure_database</span>
</span><span class='line'>
</span><span class='line'> <span class="k">def</span> <span class="nf">reconfigure_database</span>
</span><span class='line'> <span class="k">if</span> <span class="n">active_record_configured?</span>
</span><span class='line'> <span class="ss">ActiveRecord</span><span class="p">:</span><span class="ss">:Base</span><span class="o">.</span><span class="n">configurations</span> <span class="o">=</span> <span class="no">Rails</span><span class="o">.</span><span class="n">application</span><span class="o">.</span><span class="n">config</span><span class="o">.</span><span class="n">database_configuration</span>
</span><span class='line'> <span class="k">end</span>
</span><span class='line'> <span class="k">end</span>
</span><span class='line'><span class="k">end</span>
</span></code></pre></td></tr></table></div></figure>
<p>Then stop the spring, so he could see these code above:</p>
<figure class='code'><figcaption><span>Terminal </span></figcaption>
<div class="highlight"><table><tr><td class="gutter"><pre class="line-numbers"><span class='line-number'>1</span>
</pre></td><td class='code'><pre><code class='bash'><span class='line'><span class="nv">$ </span>spring stop
</span></code></pre></td></tr></table></div></figure>
<p>And now you run tests in parallel.</p>
<h3>Strong Params</h3>
<p>I don’t know how many people may meet my situation, but anyway. If you build your nested attributes hash in form manually, then (and only then) there is possible situation when keys in your hash may contain hashes and/or integer. For example:</p>
<figure class='code'><figcaption><span></span></figcaption><div class="highlight"><table><tr><td class="gutter"><pre class="line-numbers"><span class='line-number'>1</span>
<span class='line-number'>2</span>
<span class='line-number'>3</span>
<span class='line-number'>4</span>
<span class='line-number'>5</span>
<span class='line-number'>6</span>
<span class='line-number'>7</span>
<span class='line-number'>8</span>
<span class='line-number'>9</span>
<span class='line-number'>10</span>
<span class='line-number'>11</span>
<span class='line-number'>12</span>
<span class='line-number'>13</span>
</pre></td><td class='code'><pre><code class='ruby'><span class='line'><span class="p">{</span><span class="ss">:service</span> <span class="o">=></span>
</span><span class='line'> <span class="p">{</span><span class="ss">:shipping_locations_attributes</span> <span class="o">=></span>
</span><span class='line'> <span class="p">{</span><span class="err">“</span><span class="n">w234pxc453</span><span class="err">”</span><span class="o">=></span>
</span><span class='line'> <span class="p">{</span><span class="ss">:name</span> <span class="o">=></span> <span class="s2">"LA, USA"</span><span class="p">,</span>
</span><span class='line'> <span class="ss">:longitude</span> <span class="o">=></span> <span class="s2">"37.6173"</span><span class="p">,</span>
</span><span class='line'> <span class="ss">:latitude</span> <span class="o">=></span> <span class="s2">"32.755826"</span><span class="p">},</span>
</span><span class='line'> <span class="s2">"0"</span><span class="o">=></span>
</span><span class='line'> <span class="p">{</span><span class="ss">:name</span> <span class="o">=></span> <span class="s2">"LC, USA"</span><span class="p">,</span>
</span><span class='line'> <span class="ss">:longitude</span> <span class="o">=></span> <span class="s2">"12.6173"</span><span class="p">,</span>
</span><span class='line'> <span class="ss">:latitude</span> <span class="o">=></span> <span class="s2">"58.755826"</span><span class="p">}</span>
</span><span class='line'> <span class="p">}</span>
</span><span class='line'> <span class="p">}</span>
</span><span class='line'><span class="p">}</span>
</span></code></pre></td></tr></table></div></figure>
<p>In my case there is 3 possible situations:</p>
<ol>
<li>All keys are integers.</li>
<li>All keys are hashes.</li>
<li>Keys are hashes AND integers.</li>
</ol>
<p>You may think that this would work:</p>
<figure class='code'><figcaption><span></span></figcaption><div class="highlight"><table><tr><td class="gutter"><pre class="line-numbers"><span class='line-number'>1</span>
<span class='line-number'>2</span>
<span class='line-number'>3</span>
</pre></td><td class='code'><pre><code class='ruby'><span class='line'><span class="n">params</span><span class="o">.</span><span class="n">require</span><span class="p">(</span><span class="ss">:service</span><span class="p">)</span><span class="o">.</span><span class="n">permit</span><span class="p">(</span><span class="ss">:type_professional</span><span class="p">)</span><span class="o">.</span><span class="n">tap</span> <span class="k">do</span> <span class="o">|</span><span class="n">whitelist</span><span class="o">|</span>
</span><span class='line'> <span class="n">whitelist</span><span class="o">[</span><span class="ss">:shipping_locations_attributes</span><span class="o">]</span> <span class="o">=</span> <span class="n">params</span><span class="o">[</span><span class="ss">:service</span><span class="o">][</span><span class="ss">:shipping_locations_attributes</span><span class="o">]</span>
</span><span class='line'><span class="k">end</span>
</span></code></pre></td></tr></table></div></figure>
<p>Unfortunately, it didn’t help me (but it may help you). That is why I have created special method, which knows about these 3 possible situations and it generates array with this data dynamically, so you just insert this data in <code>permit</code>.</p>
<figure class='code'><figcaption><span></span></figcaption><div class="highlight"><table><tr><td class="gutter"><pre class="line-numbers"><span class='line-number'>1</span>
<span class='line-number'>2</span>
<span class='line-number'>3</span>
<span class='line-number'>4</span>
<span class='line-number'>5</span>
<span class='line-number'>6</span>
<span class='line-number'>7</span>
<span class='line-number'>8</span>
<span class='line-number'>9</span>
<span class='line-number'>10</span>
<span class='line-number'>11</span>
<span class='line-number'>12</span>
<span class='line-number'>13</span>
<span class='line-number'>14</span>
<span class='line-number'>15</span>
<span class='line-number'>16</span>
<span class='line-number'>17</span>
<span class='line-number'>18</span>
<span class='line-number'>19</span>
<span class='line-number'>20</span>
<span class='line-number'>21</span>
<span class='line-number'>22</span>
<span class='line-number'>23</span>
<span class='line-number'>24</span>
<span class='line-number'>25</span>
<span class='line-number'>26</span>
<span class='line-number'>27</span>
<span class='line-number'>28</span>
<span class='line-number'>29</span>
</pre></td><td class='code'><pre><code class='ruby'><span class='line'> <span class="c1"># Pair keys (which StronParams doesn't allow to use for nested attributes) with data to permit.</span>
</span><span class='line'> <span class="c1"># Input:</span>
</span><span class='line'> <span class="c1"># keys - Array - keys, which need to be appear in result.</span>
</span><span class='line'> <span class="c1"># data_to_permit - Array/Integer/String/etc - data, which need to be in result as value.</span>
</span><span class='line'> <span class="c1">#</span>
</span><span class='line'> <span class="c1"># Return:</span>
</span><span class='line'> <span class="c1"># 1) Array with hash, where keys is input keys and values are duplicated data_to_permit IF all keys are not integers.</span>
</span><span class='line'> <span class="c1"># 2) data_to_permit - if all keys are integer (otherwise data will not be permitted).</span>
</span><span class='line'> <span class="c1">#</span>
</span><span class='line'> <span class="c1"># Example:</span>
</span><span class='line'> <span class="c1"># pair_random_keys_with_data_to_permit(["1a0f08fcbc", "345rec32c1"], [:id, :desc, :number])</span>
</span><span class='line'> <span class="c1"># # => [{:"1a0f08fcbc"=>[:id, :desc, :number], :"345rec32c1"=>[:id, :desc, :number]}]</span>
</span><span class='line'> <span class="c1">#</span>
</span><span class='line'> <span class="c1"># pair_random_keys_with_data_to_permit(["0", "1"], [:id, :desc, :number])</span>
</span><span class='line'> <span class="c1"># # => [:id, :desc, :number]</span>
</span><span class='line'> <span class="k">def</span> <span class="nf">pair_random_keys_with_data_to_permit</span><span class="p">(</span><span class="n">keys</span><span class="p">,</span> <span class="n">data_to_permit</span><span class="p">)</span>
</span><span class='line'> <span class="k">return</span> <span class="o">[]</span> <span class="k">if</span> <span class="n">keys</span><span class="o">.</span><span class="n">nil?</span> <span class="o">||</span> <span class="n">data_to_permit</span><span class="o">.</span><span class="n">nil?</span>
</span><span class='line'>
</span><span class='line'> <span class="n">keys_integers</span> <span class="o">=</span> <span class="n">keys</span><span class="o">.</span><span class="n">all?</span><span class="p">{</span> <span class="o">|</span><span class="n">key</span><span class="o">|</span> <span class="n">key</span><span class="o">.</span><span class="n">to_i</span><span class="o">.</span><span class="n">to_s</span> <span class="o">==</span> <span class="n">key</span> <span class="p">}</span>
</span><span class='line'>
</span><span class='line'> <span class="c1"># When keys are all integers, then we should return data_to_permit, Rails's StrongParams</span>
</span><span class='line'> <span class="c1"># will take care of it.</span>
</span><span class='line'> <span class="k">if</span> <span class="n">keys_integers</span>
</span><span class='line'> <span class="n">data_to_permit</span>
</span><span class='line'> <span class="k">else</span>
</span><span class='line'> <span class="n">array_for_hash_to_permit</span> <span class="o">=</span> <span class="n">keys</span><span class="o">.</span><span class="n">map</span><span class="p">{</span> <span class="o">|</span><span class="n">key</span><span class="o">|</span> <span class="o">[</span><span class="n">key</span><span class="p">,</span> <span class="n">data_to_permit</span><span class="o">]</span> <span class="p">}</span> <span class="c1"># Pair each key with data to permit.</span>
</span><span class='line'> <span class="o">[</span><span class="no">Hash</span><span class="o">[</span><span class="n">array_for_hash_to_permit</span><span class="o">].</span><span class="n">symbolize_keys</span><span class="o">]</span> <span class="c1"># Array with hash where keys are symbols (if they may be symbols).</span>
</span><span class='line'> <span class="k">end</span>
</span><span class='line'> <span class="k">end</span>
</span></code></pre></td></tr></table></div></figure>
<p>Here is the example how to use this method. You just pass a data to the method and then you should use it’s results to permit it.</p>
<figure class='code'><figcaption><span>app/controllers/services_controller.rb </span></figcaption>
<div class="highlight"><table><tr><td class="gutter"><pre class="line-numbers"><span class='line-number'>1</span>
<span class='line-number'>2</span>
<span class='line-number'>3</span>
<span class='line-number'>4</span>
<span class='line-number'>5</span>
<span class='line-number'>6</span>
<span class='line-number'>7</span>
</pre></td><td class='code'><pre><code class='ruby'><span class='line'> <span class="k">def</span> <span class="nf">service_params</span>
</span><span class='line'> <span class="n">shipping_locations_keys</span> <span class="o">=</span> <span class="n">params</span><span class="o">[</span><span class="ss">:service</span><span class="o">][</span><span class="ss">:shipping_locations_attributes</span><span class="o">].</span><span class="n">try</span><span class="p">(</span><span class="ss">:keys</span><span class="p">)</span>
</span><span class='line'> <span class="n">shipping_locations_allowed_attributes</span> <span class="o">=</span> <span class="o">[</span><span class="ss">:id</span><span class="p">,</span> <span class="ss">:name</span><span class="p">,</span> <span class="ss">:longitude</span><span class="p">,</span> <span class="ss">:latitude</span><span class="o">]</span>
</span><span class='line'> <span class="n">shipping_locations_attrs</span> <span class="o">=</span> <span class="n">pair_random_keys_with_data_to_permit</span><span class="p">(</span><span class="n">shipping_locations_keys</span><span class="p">,</span> <span class="n">shipping_locations_allowed_attributes</span><span class="p">)</span>
</span><span class='line'>
</span><span class='line'> <span class="n">params</span><span class="o">.</span><span class="n">require</span><span class="p">(</span><span class="ss">:service</span><span class="p">)</span><span class="o">.</span><span class="n">permit</span><span class="p">(</span><span class="ss">:type_professional</span><span class="p">,</span> <span class="n">shipping_locations_attributes</span><span class="p">:</span> <span class="n">shipping_locations_attrs</span><span class="p">)</span>
</span><span class='line'> <span class="k">end</span>
</span></code></pre></td></tr></table></div></figure>
<p>I hope it’ll help somebody.</p>
<h3>Rails 4.1.5 notes</h3>
<p>When you upgrade your app to Rails 4.1.5 and you use Devise for authentication, then you can met this problem, when user tries to resend password:</p>
<figure class='code'><figcaption><span>Terminal </span></figcaption>
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</pre></td><td class='code'><pre><code class='bash'><span class='line'>ActiveModel::ForbiddenAttributesError - ActiveModel::ForbiddenAttributesError:
</span><span class='line'> activemodel <span class="o">(</span>4.1.5<span class="o">)</span> lib/active_model/forbidden_attributes_protection.rb:21:in <span class="sb">`</span>sanitize_for_mass_assignment<span class="s1">'</span>
</span><span class='line'><span class="s1"> activerecord (4.1.5) lib/active_record/relation/query_methods.rb:568:in `where!'</span>
</span><span class='line'> activerecord <span class="o">(</span>4.1.5<span class="o">)</span> lib/active_record/relation/query_methods.rb:559:in <span class="sb">`</span>where<span class="s1">'</span>
</span><span class='line'><span class="s1"> activerecord (4.1.5) lib/active_record/querying.rb:10:in `where'</span>
</span><span class='line'> app/models/user.rb:83:in <span class="sb">`</span>find_first_by_auth_conditions<span class="s1">'</span>
</span><span class='line'><span class="s1"> devise (3.2.4) lib/devise/models/authenticatable.rb:260:in `find_or_initialize_with_errors'</span>
</span><span class='line'> devise <span class="o">(</span>3.2.4<span class="o">)</span> lib/devise/models/recoverable.rb:99:in <span class="sb">`</span>send_reset_password_instructions<span class="s1">'</span>
</span><span class='line'><span class="s1"> app/controllers/passwords_controller.rb:4:in `create'</span>
</span><span class='line'> actionpack <span class="o">(</span>4.1.5<span class="o">)</span> lib/action_controller/metal/implicit_render.rb:4:in <span class="sb">`</span>send_action<span class="s1">'</span>
</span><span class='line'><span class="s1"> actionpack (4.1.5) lib/abstract_controller/base.rb:189:in `process_action'</span>
</span><span class='line'> actionpack <span class="o">(</span>4.1.5<span class="o">)</span> lib/action_controller/metal/rendering.rb:10:in <span class="sb">`</span>process_action<span class="s1">'</span>
</span><span class='line'><span class="s1"> actionpack (4.1.5) lib/abstract_controller/callbacks.rb:20:in `block in process_action'</span>
</span><span class='line'> activesupport <span class="o">(</span>4.1.5<span class="o">)</span> lib/active_support/callbacks.rb:113:in <span class="sb">`</span>call<span class="s1">'</span>
</span><span class='line'><span class="s1"> activesupport (4.1.5) lib/active_support/callbacks.rb:149:in `block in halting_and_conditional'</span>
</span><span class='line'> activesupport <span class="o">(</span>4.1.5<span class="o">)</span> lib/active_support/callbacks.rb:229:in <span class="sb">`</span>block in halting<span class="s1">'</span>
</span><span class='line'><span class="s1"> activesupport (4.1.5) lib/active_support/callbacks.rb:166:in `block in halting'</span>
</span><span class='line'> activesupport <span class="o">(</span>4.1.5<span class="o">)</span> lib/active_support/callbacks.rb:166:in <span class="sb">`</span>block in halting<span class="s1">'</span>
</span><span class='line'><span class="s1"> activesupport (4.1.5) lib/active_support/callbacks.rb:166:in `block in halting'</span>
</span><span class='line'> activesupport <span class="o">(</span>4.1.5<span class="o">)</span> lib/active_support/callbacks.rb:166:in <span class="sb">`</span>block in halting<span class="s1">'</span>
</span><span class='line'><span class="s1"> activesupport (4.1.5) lib/active_support/callbacks.rb:229:in `block in halting'</span>
</span><span class='line'> activesupport <span class="o">(</span>4.1.5<span class="o">)</span> lib/active_support/callbacks.rb:166:in <span class="sb">`</span>block in halting<span class="s1">'</span>
</span><span class='line'><span class="s1"> activesupport (4.1.5) lib/active_support/callbacks.rb:166:in `block in halting'</span>
</span><span class='line'> activesupport <span class="o">(</span>4.1.5<span class="o">)</span> lib/active_support/callbacks.rb:166:in <span class="sb">`</span>block in halting<span class="s1">'</span>
</span><span class='line'><span class="s1"> activesupport (4.1.5) lib/active_support/callbacks.rb:166:in `block in halting'</span>
</span><span class='line'> activesupport <span class="o">(</span>4.1.5<span class="o">)</span> lib/active_support/callbacks.rb:166:in <span class="sb">`</span>block in halting<span class="s1">'</span>
</span><span class='line'><span class="s1"> activesupport (4.1.5) lib/active_support/callbacks.rb:166:in `block in halting'</span>
</span><span class='line'> activesupport <span class="o">(</span>4.1.5<span class="o">)</span> lib/active_support/callbacks.rb:166:in <span class="sb">`</span>block in halting<span class="s1">'</span>
</span><span class='line'><span class="s1"> activesupport (4.1.5) lib/active_support/callbacks.rb:166:in `block in halting'</span>
</span><span class='line'> activesupport <span class="o">(</span>4.1.5<span class="o">)</span> lib/active_support/callbacks.rb:86:in <span class="sb">`</span>run_callbacks<span class="s1">'</span>
</span><span class='line'><span class="s1"> actionpack (4.1.5) lib/abstract_controller/callbacks.rb:19:in `process_action'</span>
</span><span class='line'> actionpack <span class="o">(</span>4.1.5<span class="o">)</span> lib/action_controller/metal/rescue.rb:29:in <span class="sb">`</span>process_action<span class="s1">'</span>
</span><span class='line'><span class="s1"> actionpack (4.1.5) lib/action_controller/metal/instrumentation.rb:31:in `block in process_action'</span>
</span><span class='line'> activesupport <span class="o">(</span>4.1.5<span class="o">)</span> lib/active_support/notifications.rb:159:in <span class="sb">`</span>block in instrument<span class="s1">'</span>
</span><span class='line'><span class="s1"> activesupport (4.1.5) lib/active_support/notifications/instrumenter.rb:20:in `instrument'</span>
</span><span class='line'> activesupport <span class="o">(</span>4.1.5<span class="o">)</span> lib/active_support/notifications.rb:159:in <span class="sb">`</span>instrument<span class="s1">'</span>
</span><span class='line'><span class="s1"> actionpack (4.1.5) lib/action_controller/metal/instrumentation.rb:30:in `process_action'</span>
</span><span class='line'> actionpack <span class="o">(</span>4.1.5<span class="o">)</span> lib/action_controller/metal/params_wrapper.rb:250:in <span class="sb">`</span>process_action<span class="s1">'</span>
</span><span class='line'><span class="s1"> activerecord (4.1.5) lib/active_record/railties/controller_runtime.rb:18:in `process_action'</span>
</span><span class='line'> actionpack <span class="o">(</span>4.1.5<span class="o">)</span> lib/abstract_controller/base.rb:136:in <span class="sb">`</span>process<span class="s1">'</span>
</span><span class='line'><span class="s1"> actionview (4.1.5) lib/action_view/rendering.rb:30:in `process'</span>
</span><span class='line'> actionpack <span class="o">(</span>4.1.5<span class="o">)</span> lib/action_controller/metal.rb:196:in <span class="sb">`</span>dispatch<span class="s1">'</span>
</span><span class='line'><span class="s1"> actionpack (4.1.5) lib/action_controller/metal/rack_delegation.rb:13:in `dispatch'</span>
</span><span class='line'> actionpack <span class="o">(</span>4.1.5<span class="o">)</span> lib/action_controller/metal.rb:232:in <span class="sb">`</span>block in action<span class="s1">'</span>
</span><span class='line'><span class="s1"> actionpack (4.1.5) lib/action_dispatch/routing/route_set.rb:82:in `dispatch'</span>
</span><span class='line'> actionpack <span class="o">(</span>4.1.5<span class="o">)</span> lib/action_dispatch/routing/route_set.rb:50:in <span class="sb">`</span>call<span class="s1">'</span>
</span><span class='line'><span class="s1"> actionpack (4.1.5) lib/action_dispatch/routing/mapper.rb:45:in `call'</span>
</span><span class='line'> actionpack <span class="o">(</span>4.1.5<span class="o">)</span> lib/action_dispatch/journey/router.rb:71:in <span class="sb">`</span>block in call<span class="s1">'</span>
</span><span class='line'><span class="s1"> actionpack (4.1.5) lib/action_dispatch/journey/router.rb:59:in `call'</span>
</span><span class='line'> actionpack <span class="o">(</span>4.1.5<span class="o">)</span> lib/action_dispatch/routing/route_set.rb:678:in <span class="sb">`</span>call<span class="s1">'</span>
</span><span class='line'><span class="s1"> rack-pjax (0.7.0) lib/rack/pjax.rb:12:in `call'</span>
</span><span class='line'> newrelic_rpm <span class="o">(</span>3.8.1.221<span class="o">)</span> lib/new_relic/rack/error_collector.rb:55:in <span class="sb">`</span>call<span class="s1">'</span>
</span><span class='line'><span class="s1"> newrelic_rpm (3.8.1.221) lib/new_relic/rack/agent_hooks.rb:32:in `call'</span>
</span><span class='line'> newrelic_rpm <span class="o">(</span>3.8.1.221<span class="o">)</span> lib/new_relic/rack/browser_monitoring.rb:27:in <span class="sb">`</span>call<span class="s1">'</span>
</span><span class='line'><span class="s1"> newrelic_rpm (3.8.1.221) lib/new_relic/rack/developer_mode.rb:45:in `call'</span>
</span><span class='line'> meta_request <span class="o">(</span>0.3.0<span class="o">)</span> lib/meta_request/middlewares/app_request_handler.rb:13:in <span class="sb">`</span>call<span class="s1">'</span>
</span><span class='line'><span class="s1"> rack-contrib (1.1.0) lib/rack/contrib/response_headers.rb:17:in `call'</span>
</span><span class='line'> meta_request <span class="o">(</span>0.3.0<span class="o">)</span> lib/meta_request/middlewares/headers.rb:16:in <span class="sb">`</span>call<span class="s1">'</span>
</span><span class='line'><span class="s1"> meta_request (0.3.0) lib/meta_request/middlewares/meta_request_handler.rb:13:in `call'</span>
</span><span class='line'> bullet <span class="o">(</span>4.10.0<span class="o">)</span> lib/bullet/rack.rb:12:in <span class="sb">`</span>call<span class="s1">'</span>
</span><span class='line'><span class="s1"> simple_captcha2 (0.3.2) lib/simple_captcha/middleware.rb:26:in `call'</span>
</span><span class='line'> warden <span class="o">(</span>1.2.3<span class="o">)</span> lib/warden/manager.rb:35:in <span class="sb">`</span>block in call<span class="s1">'</span>
</span><span class='line'><span class="s1"> warden (1.2.3) lib/warden/manager.rb:34:in `call'</span>
</span><span class='line'> rack <span class="o">(</span>1.5.2<span class="o">)</span> lib/rack/etag.rb:23:in <span class="sb">`</span>call<span class="s1">'</span>
</span><span class='line'><span class="s1"> rack (1.5.2) lib/rack/conditionalget.rb:35:in `call'</span>
</span><span class='line'> rack <span class="o">(</span>1.5.2<span class="o">)</span> lib/rack/head.rb:11:in <span class="sb">`</span>call<span class="s1">'</span>
</span><span class='line'><span class="s1"> remotipart (1.2.1) lib/remotipart/middleware.rb:27:in `call'</span>
</span><span class='line'> actionpack <span class="o">(</span>4.1.5<span class="o">)</span> lib/action_dispatch/middleware/params_parser.rb:27:in <span class="sb">`</span>call<span class="s1">'</span>
</span><span class='line'><span class="s1"> actionpack (4.1.5) lib/action_dispatch/middleware/flash.rb:254:in `call'</span>
</span><span class='line'> rack <span class="o">(</span>1.5.2<span class="o">)</span> lib/rack/session/abstract/id.rb:225:in <span class="sb">`</span>context<span class="s1">'</span>
</span><span class='line'><span class="s1"> rack (1.5.2) lib/rack/session/abstract/id.rb:220:in `call'</span>
</span><span class='line'> actionpack <span class="o">(</span>4.1.5<span class="o">)</span> lib/action_dispatch/middleware/cookies.rb:560:in <span class="sb">`</span>call<span class="s1">'</span>
</span><span class='line'><span class="s1"> activerecord (4.1.5) lib/active_record/query_cache.rb:36:in `call'</span>
</span><span class='line'> activerecord <span class="o">(</span>4.1.5<span class="o">)</span> lib/active_record/connection_adapters/abstract/connection_pool.rb:621:in <span class="sb">`</span>call<span class="s1">'</span>
</span><span class='line'><span class="s1"> activerecord (4.1.5) lib/active_record/migration.rb:380:in `call'</span>
</span><span class='line'> actionpack <span class="o">(</span>4.1.5<span class="o">)</span> lib/action_dispatch/middleware/callbacks.rb:29:in <span class="sb">`</span>block in call<span class="s1">'</span>
</span><span class='line'><span class="s1"> activesupport (4.1.5) lib/active_support/callbacks.rb:82:in `run_callbacks'</span>
</span><span class='line'> actionpack <span class="o">(</span>4.1.5<span class="o">)</span> lib/action_dispatch/middleware/callbacks.rb:27:in <span class="sb">`</span>call<span class="s1">'</span>
</span><span class='line'><span class="s1"> actionpack (4.1.5) lib/action_dispatch/middleware/reloader.rb:73:in `call'</span>
</span><span class='line'> actionpack <span class="o">(</span>4.1.5<span class="o">)</span> lib/action_dispatch/middleware/remote_ip.rb:76:in <span class="sb">`</span>call<span class="s1">'</span>
</span><span class='line'><span class="s1"> better_errors (1.1.0) lib/better_errors/middleware.rb:84:in `protected_app_call'</span>
</span><span class='line'> better_errors <span class="o">(</span>1.1.0<span class="o">)</span> lib/better_errors/middleware.rb:79:in <span class="sb">`</span>better_errors_call<span class="s1">'</span>
</span><span class='line'><span class="s1"> better_errors (1.1.0) lib/better_errors/middleware.rb:56:in `call'</span>
</span><span class='line'> actionpack <span class="o">(</span>4.1.5<span class="o">)</span> lib/action_dispatch/middleware/debug_exceptions.rb:17:in <span class="sb">`</span>call<span class="s1">'</span>
</span><span class='line'><span class="s1"> actionpack (4.1.5) lib/action_dispatch/middleware/show_exceptions.rb:30:in `call'</span>
</span><span class='line'> railties <span class="o">(</span>4.1.5<span class="o">)</span> lib/rails/rack/logger.rb:38:in <span class="sb">`</span>call_app<span class="s1">'</span>
</span><span class='line'><span class="s1"> railties (4.1.5) lib/rails/rack/logger.rb:20:in `block in call'</span>
</span><span class='line'> activesupport <span class="o">(</span>4.1.5<span class="o">)</span> lib/active_support/tagged_logging.rb:68:in <span class="sb">`</span>block in tagged<span class="s1">'</span>
</span><span class='line'><span class="s1"> activesupport (4.1.5) lib/active_support/tagged_logging.rb:26:in `tagged'</span>
</span><span class='line'> activesupport <span class="o">(</span>4.1.5<span class="o">)</span> lib/active_support/tagged_logging.rb:68:in <span class="sb">`</span>tagged<span class="s1">'</span>
</span><span class='line'><span class="s1"> railties (4.1.5) lib/rails/rack/logger.rb:20:in `call'</span>
</span><span class='line'> quiet_assets <span class="o">(</span>1.0.3<span class="o">)</span> lib/quiet_assets.rb:23:in <span class="sb">`</span>call_with_quiet_assets<span class="s1">'</span>
</span><span class='line'><span class="s1"> actionpack (4.1.5) lib/action_dispatch/middleware/request_id.rb:21:in `call'</span>
</span><span class='line'> request_store <span class="o">(</span>1.0.6<span class="o">)</span> lib/request_store/middleware.rb:8:in <span class="sb">`</span>call<span class="s1">'</span>
</span><span class='line'><span class="s1"> rack (1.5.2) lib/rack/methodoverride.rb:21:in `call'</span>
</span><span class='line'> rack <span class="o">(</span>1.5.2<span class="o">)</span> lib/rack/runtime.rb:17:in <span class="sb">`</span>call<span class="s1">'</span>
</span><span class='line'><span class="s1"> activesupport (4.1.5) lib/active_support/cache/strategy/local_cache_middleware.rb:26:in `call'</span>
</span><span class='line'> rack <span class="o">(</span>1.5.2<span class="o">)</span> lib/rack/lock.rb:17:in <span class="sb">`</span>call<span class="s1">'</span>
</span><span class='line'><span class="s1"> actionpack (4.1.5) lib/action_dispatch/middleware/static.rb:64:in `call'</span>
</span><span class='line'> rack <span class="o">(</span>1.5.2<span class="o">)</span> lib/rack/sendfile.rb:112:in <span class="sb">`</span>call<span class="s1">'</span>
</span><span class='line'><span class="s1"> railties (4.1.5) lib/rails/engine.rb:514:in `call'</span>
</span><span class='line'> railties <span class="o">(</span>4.1.5<span class="o">)</span> lib/rails/application.rb:144:in <span class="sb">`</span>call<span class="s1">'</span>
</span><span class='line'><span class="s1"> rack (1.5.2) lib/rack/content_length.rb:14:in `call'</span>
</span><span class='line'> thin <span class="o">(</span>1.6.2<span class="o">)</span> lib/thin/connection.rb:86:in <span class="sb">`</span>block in pre_process<span class="s1">'</span>
</span><span class='line'><span class="s1"> thin (1.6.2) lib/thin/connection.rb:84:in `pre_process'</span>
</span><span class='line'> thin <span class="o">(</span>1.6.2<span class="o">)</span> lib/thin/connection.rb:53:in <span class="sb">`</span>process<span class="s1">'</span>
</span><span class='line'><span class="s1"> thin (1.6.2) lib/thin/connection.rb:39:in `receive_data'</span>
</span><span class='line'> eventmachine <span class="o">(</span>1.0.3<span class="o">)</span> lib/eventmachine.rb:187:in <span class="sb">`</span>run<span class="s1">'</span>
</span><span class='line'><span class="s1"> thin (1.6.2) lib/thin/backends/base.rb:73:in `start'</span>
</span><span class='line'> thin <span class="o">(</span>1.6.2<span class="o">)</span> lib/thin/server.rb:162:in <span class="sb">`</span>start<span class="s1">'</span>
</span><span class='line'><span class="s1"> rack (1.5.2) lib/rack/handler/thin.rb:16:in `run'</span>
</span><span class='line'> rack <span class="o">(</span>1.5.2<span class="o">)</span> lib/rack/server.rb:264:in <span class="sb">`</span>start<span class="s1">'</span>
</span><span class='line'><span class="s1"> railties (4.1.5) lib/rails/commands/server.rb:69:in `start'</span>
</span><span class='line'> railties <span class="o">(</span>4.1.5<span class="o">)</span> lib/rails/commands/commands_tasks.rb:81:in <span class="sb">`</span>block in server<span class="s1">'</span>
</span><span class='line'><span class="s1"> railties (4.1.5) lib/rails/commands/commands_tasks.rb:76:in `server'</span>
</span><span class='line'> railties <span class="o">(</span>4.1.5<span class="o">)</span> lib/rails/commands/commands_tasks.rb:40:in <span class="sb">`</span>run_command!<span class="s1">'</span>
</span><span class='line'><span class="s1"> railties (4.1.5) lib/rails/commands.rb:17:in `<top (required)>'</span>
</span><span class='line'> bin/rails:8:in <span class="sb">`</span><top <span class="o">(</span>required<span class="o">)</span>><span class="s1">'</span>
</span><span class='line'><span class="s1"> spring (1.1.3) lib/spring/client/rails.rb:27:in `call'</span>
</span><span class='line'> spring <span class="o">(</span>1.1.3<span class="o">)</span> lib/spring/client/command.rb:7:in <span class="sb">`</span>call<span class="s1">'</span>
</span><span class='line'><span class="s1"> spring (1.1.3) lib/spring/client.rb:26:in `run'</span>
</span><span class='line'> spring <span class="o">(</span>1.1.3<span class="o">)</span> bin/spring:48:in <span class="sb">`</span><top <span class="o">(</span>required<span class="o">)</span>><span class="s1">'</span>
</span><span class='line'><span class="s1"> spring (1.1.3) lib/spring/binstub.rb:11:in `<top (required)>'</span>
</span><span class='line'> bin/spring:16:in <span class="sb">`</span><top <span class="o">(</span>required<span class="o">)</span>><span class="s1">'</span>
</span><span class='line'><span class="s1"> bin/rails:3:in `<main>'</span>
</span></code></pre></td></tr></table></div></figure>
<p>In my case I had overridden Devise’s controller:</p>
<figure class='code'><figcaption><span>app/controllers/passwords_controller.rb </span></figcaption>
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</pre></td><td class='code'><pre><code class='ruby'><span class='line'><span class="k">class</span> <span class="nc">PasswordsController</span> <span class="o"><</span> <span class="ss">Devise</span><span class="p">:</span><span class="ss">:PasswordsController</span>
</span><span class='line'> <span class="k">def</span> <span class="nf">create</span>
</span><span class='line'> <span class="vi">@user</span> <span class="o">=</span> <span class="n">resource_class</span><span class="o">.</span><span class="n">send_reset_password_instructions</span><span class="p">(</span><span class="n">resource_params</span><span class="p">)</span>
</span><span class='line'>
</span><span class='line'> <span class="n">respond_to</span> <span class="k">do</span> <span class="o">|</span><span class="nb">format</span><span class="o">|</span>
</span><span class='line'> <span class="nb">format</span><span class="o">.</span><span class="n">js</span>
</span><span class='line'> <span class="k">end</span>
</span><span class='line'> <span class="k">end</span>
</span><span class='line'><span class="k">end</span>
</span></code></pre></td></tr></table></div></figure>
<p>Fix is pretty easy. We need to permit email:</p>
<figure class='code'><figcaption><span>app/controllers/passwords_controller.rb </span></figcaption>
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</pre></td><td class='code'><pre><code class='ruby'><span class='line'><span class="k">class</span> <span class="nc">PasswordsController</span> <span class="o"><</span> <span class="ss">Devise</span><span class="p">:</span><span class="ss">:PasswordsController</span>
</span><span class='line'> <span class="k">def</span> <span class="nf">create</span>
</span><span class='line'> <span class="vi">@user</span> <span class="o">=</span> <span class="n">resource_class</span><span class="o">.</span><span class="n">send_reset_password_instructions</span><span class="p">(</span><span class="n">resource_params</span><span class="o">.</span><span class="n">permit</span><span class="p">(</span><span class="ss">:email</span><span class="p">))</span>
</span><span class='line'>
</span><span class='line'> <span class="c1"># ...</span>
</span><span class='line'> <span class="k">end</span>
</span><span class='line'><span class="k">end</span>
</span></code></pre></td></tr></table></div></figure>
<h3>Last words</h3>
<p>Check out <a href="http://railsdiff.org/diff/v4.0.5/v4.1.5/">railsdiff</a> to view changes in the code. Don’t forget to bump you gems. Make sure that all tests are green. Have a good test coverage and don’t bump your app without it.</p>
]]></content>
</entry>
<entry>
<title type="html"><![CDATA[How Thor Can Help You With Your Tests (or Integration of Parallel_tests and Cucumber)]]></title>
<link href="http://bloginius.com/blog/2014/05/12/how-thor-can-help-you-with-your-tests-or-integration-of-parallel-tests-and-cucumber/"/>
<updated>2014-05-12T18:05:53+04:00</updated>
<id>http://bloginius.com/blog/2014/05/12/how-thor-can-help-you-with-your-tests-or-integration-of-parallel-tests-and-cucumber</id>
<content type="html"><![CDATA[<h2>Specs it!</h2>
<p>Today I’d like to talk about one important (kind of) area of each RoR developer. This is testing. You may wonder, “Why the heck do I even need to write these stupid tests?”. Well, first of all, you may do it because your boss wants it. Or because all other rubyists write them. What do you mean, “I’m not satisfied?”. All right, how about making sure that your app don’t crush each time you commit new feature or fix a bug? Tests also help you to upgrade libs, install new Rails and other funny stuff, FYI. I know the company, who can’t upgrade to Rails 4, because it’s app don’t have tests.</p>
<p>Let me suppose, that you are satisfied by that and you started to write tests… Firstly with Rspec, because test-unit is not popular solution. And then you open Cucumber for yourself. And write more and more tests. And in one day you look in your terminal and you start to think that waiting 10 minutes until your features’d finish isn’t a good idea, because you can already drink few cups of tea or coffee and with such progress soon you’ll be able to watch a “Big bang theory”.</p>
<p><img class="center" src="http://bloginius.com/images/thor-and-parallel-tests/cucumber-running-xkcd.png"></p>
<!-- more -->
<p>And you decide to make your tests faster. So, you google for a while and find <a href="https://github.com/grosser/parallel_tests">parallel_tests</a>. You try it and see that your tests run <em>n</em> times faster! Wow!</p>
<p>You start use it, and use, it and use it. But after a while some of your tests <em>suddenly</em> start to fail from time to time. You fight with it, even add hacks: <code>sleep 100500</code>. And even with that some tests may fail randomly from time to time. Oh…</p>
<p><img class="center" src="http://bloginius.com/images/thor-and-parallel-tests/doge-wow-cucumber.jpeg"></p>
<p>Of course, you still should try to fix it. But fixing randomly failing piece of code is one of the hardest things that you can ever meet in your live as a programmer, in my humble opinion.</p>
<h2>Thor with parallel</h2>
<p>So, I decided to create a thor task for people, who use <a href="https://github.com/grosser/parallel_tests">parallel_tests</a>. This tool do this:</p>
<ol>
<li>Prepare your databases in parallel.</li>
<li>Run your features in parallel.</li>
<li>Rerun failed tests with vanilla cucumber.</li>
</ol>
<p>Here is the code:</p>
<figure class='code'><figcaption><span>lib/tasks/parallel.thor </span></figcaption>
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</pre></td><td class='code'><pre><code class='ruby'><span class='line'><span class="nb">require</span> <span class="no">File</span><span class="o">.</span><span class="n">expand_path</span><span class="p">(</span><span class="s1">'config/environment.rb'</span><span class="p">)</span>
</span><span class='line'><span class="nb">require</span> <span class="s1">'cucumber/cli/main'</span>
</span><span class='line'><span class="nb">require</span> <span class="s1">'parallel_tests'</span>
</span><span class='line'>
</span><span class='line'><span class="k">class</span> <span class="nc">Parallel</span> <span class="o"><</span> <span class="ss">Gearup</span><span class="p">:</span><span class="ss">:TasksBase</span>
</span><span class='line'> <span class="n">desc</span> <span class="s2">"and_rerun"</span><span class="p">,</span> <span class="s1">'Prepare and run tests in parallel, and restart failed tests via vanilla cucumber. Run it like that: $ RAILS_ENV=test bundle exec thor parallel:and_rerun'</span>
</span><span class='line'> <span class="k">def</span> <span class="nf">and_rerun</span>
</span><span class='line'> <span class="k">if</span> <span class="no">Rails</span><span class="o">.</span><span class="n">env</span><span class="o">.</span><span class="n">test?</span>
</span><span class='line'> <span class="k">begin</span>
</span><span class='line'> <span class="nb">puts</span> <span class="s2">"</span><span class="se">\n</span><span class="s2">Run: rake parallel:prepare"</span>
</span><span class='line'> <span class="nb">puts</span> <span class="sb">`rake parallel:prepare`</span>
</span><span class='line'>
</span><span class='line'> <span class="nb">puts</span> <span class="s2">"</span><span class="se">\n</span><span class="s2">Run: rake parallel:features"</span>
</span><span class='line'> <span class="ss">ParallelTests</span><span class="p">:</span><span class="ss">:CLI</span><span class="o">.</span><span class="n">new</span><span class="o">.</span><span class="n">run</span><span class="p">(</span><span class="o">[</span><span class="s2">"--type"</span><span class="p">,</span> <span class="s2">"cucumber"</span><span class="o">]</span> <span class="o">+</span> <span class="o">[</span><span class="s2">"features"</span><span class="o">]</span><span class="p">)</span>
</span><span class='line'> <span class="k">ensure</span> <span class="c1"># Run fail tests if ParallelTests raised error (which it does when some tests fail).</span>
</span><span class='line'> <span class="nb">puts</span> <span class="s2">"</span><span class="se">\n</span><span class="s2">Checking for failed tests..."</span>
</span><span class='line'> <span class="n">rerun_with_cucumber</span>
</span><span class='line'> <span class="k">end</span>
</span><span class='line'> <span class="k">else</span>
</span><span class='line'> <span class="k">raise</span> <span class="s2">"You didn't run task in test environment! Run it like that: $ RAILS_ENV=test bundle exec thor parallel:and_rerun"</span>
</span><span class='line'> <span class="k">end</span>
</span><span class='line'> <span class="k">end</span>
</span><span class='line'>
</span><span class='line'> <span class="n">desc</span> <span class="s2">"rerun_with_cucumber"</span><span class="p">,</span> <span class="s1">'Run failed tests with vanilla cucumber (non-parallel)'</span>
</span><span class='line'> <span class="k">def</span> <span class="nf">rerun_with_cucumber</span>
</span><span class='line'> <span class="k">if</span> <span class="no">Rails</span><span class="o">.</span><span class="n">env</span><span class="o">.</span><span class="n">test?</span>
</span><span class='line'> <span class="n">parallel_file_with_failed_features</span> <span class="o">=</span> <span class="no">File</span><span class="o">.</span><span class="n">join</span><span class="p">(</span><span class="no">Rails</span><span class="o">.</span><span class="n">root</span><span class="p">,</span> <span class="s2">"tmp"</span><span class="p">,</span> <span class="s2">"parallel_cucumber_failures.log"</span><span class="p">)</span>
</span><span class='line'> <span class="n">failed_features_str</span> <span class="o">=</span> <span class="no">File</span><span class="o">.</span><span class="n">open</span><span class="p">(</span><span class="n">parallel_file_with_failed_features</span><span class="p">,</span> <span class="s2">"r"</span><span class="p">)</span><span class="o">.</span><span class="n">read</span>
</span><span class='line'> <span class="n">tmp_logs</span> <span class="o">=</span> <span class="no">Tempfile</span><span class="o">.</span><span class="n">new</span><span class="p">(</span><span class="s1">'parallel_cucumber_failures_tmp'</span><span class="p">,</span> <span class="no">File</span><span class="o">.</span><span class="n">join</span><span class="p">(</span><span class="no">Rails</span><span class="o">.</span><span class="n">root</span><span class="p">,</span> <span class="s2">"tmp"</span><span class="p">))</span>
</span><span class='line'>
</span><span class='line'> <span class="k">begin</span>
</span><span class='line'> <span class="n">tmp_logs</span><span class="o">.</span><span class="n">write</span><span class="p">(</span><span class="n">failed_features_str</span><span class="p">)</span>
</span><span class='line'> <span class="n">tmp_logs</span><span class="o">.</span><span class="n">rewind</span>
</span><span class='line'>
</span><span class='line'> <span class="c1"># Running failed tests if parallel file with failed features contains something.</span>
</span><span class='line'> <span class="k">unless</span> <span class="n">failed_features_str</span><span class="o">.</span><span class="n">empty?</span>
</span><span class='line'> <span class="n">cucumber_cmd</span> <span class="o">=</span> <span class="s2">"@</span><span class="si">#{</span><span class="n">tmp_logs</span><span class="o">.</span><span class="n">path</span><span class="si">}</span><span class="s2">"</span>
</span><span class='line'> <span class="nb">puts</span> <span class="s2">"</span><span class="se">\n</span><span class="s2">Executing failed tests: cucumber </span><span class="si">#{</span><span class="n">cucumber_cmd</span><span class="si">}</span><span class="s2">"</span>
</span><span class='line'> <span class="ss">Cucumber</span><span class="p">:</span><span class="ss">:Cli</span><span class="o">::</span><span class="no">Main</span><span class="o">.</span><span class="n">new</span><span class="p">(</span><span class="o">[</span><span class="n">cucumber_cmd</span><span class="o">]</span><span class="p">)</span><span class="o">.</span><span class="n">execute!</span>
</span><span class='line'> <span class="k">else</span>
</span><span class='line'> <span class="nb">puts</span> <span class="s2">"</span><span class="se">\n</span><span class="s2">There are no failed tests."</span>
</span><span class='line'> <span class="k">end</span>
</span><span class='line'> <span class="k">ensure</span>
</span><span class='line'> <span class="n">tmp_logs</span><span class="o">.</span><span class="n">close</span>
</span><span class='line'> <span class="n">tmp_logs</span><span class="o">.</span><span class="n">unlink</span>
</span><span class='line'> <span class="k">end</span>
</span><span class='line'> <span class="k">else</span>
</span><span class='line'> <span class="k">raise</span> <span class="s2">"You didn't run task in test environment! Run it like that: $ RAILS_ENV=test bundle exec thor parallel:rerun_with_cucumber"</span>
</span><span class='line'> <span class="k">end</span>
</span><span class='line'> <span class="k">end</span>
</span><span class='line'><span class="k">end</span>
</span></code></pre></td></tr></table></div></figure>
<p>Well, code contains 2 methods: one to actually rerun failed tests and one to prepare db, run tests in parallel and then call task to run failed features. But this is not all.</p>
<p><img class="center" src="http://bloginius.com/images/thor-and-parallel-tests/evil-happy-kid.png"></p>
<p>To enable features to be actually reruned when they fail, you need to enable logging failed features by parallel_tests. This functional has been merged a while ago (wow), but you need to add a specific code to enable it.</p>
<p>Open config/cucumber.yml and add this <code>--format ParallelTests::Cucumber::FailuresLogger --out tmp/parallel_cucumber_failures.log</code> to std_options:</p>
<figure class='code'><figcaption><span>config/cucumber.yml </span></figcaption>
<div class="highlight"><table><tr><td class="gutter"><pre class="line-numbers"><span class='line-number'>1</span>
<span class='line-number'>2</span>
<span class='line-number'>3</span>