add i18n tests

Gemfile

@@ -70,6 +70,9 @@ end
 
 group :development, :test do
   gem 'ruby-prof'
+end
+
+group :test do
   gem 'rspec-rails'
   gem 'factory_girl_rails', '~> 4.0'
   gem 'faker'
@@ -77,6 +80,10 @@ group :development, :test do
   # webkit and poltergeist don't seem to work yet
   gem 'database_cleaner'
   gem 'simplecov', require: false
+  # need to include rspec components before i18n-spec or rake fails in test environment
+  gem 'rspec-core'
+  gem 'rspec-expectations'
+  gem 'i18n-spec'
 end
 
 # Gems left for backwards compatibility

Gemfile.lock

@@ -118,9 +118,13 @@ GEM
     highline (1.6.19)
     hike (1.2.3)
     i18n (0.6.1)
+    i18n-spec (0.4.0)
+      iso
     inherited_resources (1.3.1)
       has_scope (~> 0.5.0)
       responders (~> 0.6)
+    iso (0.2.0)
+      i18n
     journey (1.0.4)
     jquery-rails (2.1.3)
       railties (>= 3.1.0, < 5.0)
@@ -324,6 +328,7 @@ DEPENDENCIES
   factory_girl_rails (~> 4.0)
   faker
   haml-rails
+  i18n-spec
   inherited_resources
   jquery-rails
   kaminari
@@ -336,6 +341,8 @@ DEPENDENCIES
   rails (~> 3.2.9)
   rails-settings-cached (= 0.2.4)
   resque
+  rspec-core
+  rspec-expectations
   rspec-rails
   ruby-prof
   sass-rails (~> 3.2.3)

spec/i18n_spec.rb

@@ -0,0 +1,12 @@
+require 'spec_helper'
+require 'i18n-spec'
+
+Dir.glob('config/locales/*.yml').each do |locale_file|
+  describe "#{locale_file}" do
+    it_behaves_like 'a valid locale file', locale_file
+    # We're currently allowing both German and English as source language
+    # besides, we're using localeapp, so that it's ok if pull requests
+    # don't have this - a localapp pull will fix that right away.
+    #it { expect(locale_file).to be_a_subset_of 'config/locales/en.yml' }
+  end
+end