Avoid using the zero key for pluralisation in English

[rails.git] / test / lib / i18n_test.rb

diff --git a/test/lib/i18n_test.rb b/test/lib/i18n_test.rb
index 3f46955b3bab54ce0a21d8ce82f68dc820365b4e..def2442bf3120023fcba78ccefe9000147f7e6cf 100644 (file)
--- a/test/lib/i18n_test.rb
+++ b/test/lib/i18n_test.rb
@@ -69,6 +69,15 @@ class I18nTest < ActiveSupport::TestCase
     end
   end
 
+  # We should avoid using the key `zero:` in English, since that key
+  # is used for "numbers ending in zero" in other languages.
+  def test_en_for_zero_key
+    en = YAML.load_file(Rails.root.join("config/locales/en.yml"))
+    assert_nothing_raised do
+      check_keys_for_zero(en)
+    end
+  end
+
   private
 
   def translation_keys(scope = nil)
@@ -116,4 +125,14 @@ class I18nTest < ActiveSupport::TestCase
       end
     end
   end
+
+  def check_keys_for_zero(hash)
+    hash.each_pair do |k, v|
+      if v.is_a? Hash
+        check_keys_for_zero(v)
+      else
+        raise "Avoid using 'zero' key in '#{k}: #{v}'" if k.to_s == "zero"
+      end
+    end
+  end
 end