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 cdfd234af46c284a3e71d727e26bbf110b8365d5..def2442bf3120023fcba78ccefe9000147f7e6cf 100644 (file)
--- a/test/lib/i18n_test.rb
+++ b/test/lib/i18n_test.rb
@@ -36,23 +36,48 @@ class I18nTest < ActiveSupport::TestCase
               next if subvalue.nil?
 
               subvalue.scan(/%\{(\w+)\}/) do
-                assert variables.include?(Regexp.last_match(1)), "#{key}.#{subkey} uses unknown interpolation variable #{Regexp.last_match(1)}"
+                assert_includes variables, Regexp.last_match(1), "#{key}.#{subkey} uses unknown interpolation variable #{Regexp.last_match(1)}"
               end
             end
+
+            assert_includes value, :other, "#{key}.other plural key missing"
           else
             assert value.is_a?(String), "#{key} is not a string"
 
             value.scan(/%\{(\w+)\}/) do
-              assert variables.include?(Regexp.last_match(1)), "#{key} uses unknown interpolation variable #{Regexp.last_match(1)}"
+              assert_includes variables, Regexp.last_match(1), "#{key} uses unknown interpolation variable #{Regexp.last_match(1)}"
             end
           end
         end
 
-        assert %w[ltr rtl].include?(I18n.t("html.dir", :locale => locale)), "html.dir must be ltr or rtl"
+        assert_includes %w[ltr rtl], I18n.t("html.dir", :locale => locale), "html.dir must be ltr or rtl"
       end
     end
   end
 
+  def test_en_for_raw_html
+    en = YAML.load_file(Rails.root.join("config/locales/en.yml"))
+    assert_nothing_raised do
+      check_values_for_raw_html(en)
+    end
+  end
+
+  def test_en_for_nil_values
+    en = YAML.load_file(Rails.root.join("config/locales/en.yml"))
+    assert_nothing_raised do
+      check_values_for_nil(en)
+    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)
@@ -61,13 +86,14 @@ class I18nTest < ActiveSupport::TestCase
     I18n.t(scope || ".", :locale => I18n.default_locale).map do |key, value|
       scoped_key = scope ? "#{scope}.#{key}" : key
 
-      if value.is_a?(Hash)
+      case value
+      when Hash
         if value.keys - plural_keys == []
           scoped_key
         else
           translation_keys(scoped_key)
         end
-      elsif value.is_a?(String)
+      when String
         scoped_key
       end
     end.flatten
@@ -78,4 +104,35 @@ class I18nTest < ActiveSupport::TestCase
   rescue I18n::MissingTranslationData
     [:zero, :one, :other]
   end
+
+  def check_values_for_raw_html(hash)
+    hash.each_pair do |k, v|
+      if v.is_a? Hash
+        check_values_for_raw_html(v)
+      else
+        next unless k.end_with?("_html")
+        raise "Avoid using raw html in '#{k}: #{v}'" if v.include? "<"
+      end
+    end
+  end
+
+  def check_values_for_nil(hash)
+    hash.each_pair do |k, v|
+      if v.is_a? Hash
+        check_values_for_nil(v)
+      else
+        raise "Avoid nil values in '#{k}: nil'" if v.nil?
+      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