use_language (good for around_filter)

Author: defunkt

lib/gibberish/localize.rb

@@ -25,6 +25,13 @@ def current_language=(language)
       @@current_language = languages[language] ? language : nil
     end
 
+    def use_language(language)
+      start_language = current_language
+      self.current_language = language
+      yield
+      self.current_language = start_language
+    end
+
     def default_language?
       current_language == default_language
     end

test/gibberish_test.rb

@@ -49,6 +49,21 @@
     Gibberish.current_language = nil
     Gibberish.should.be.default_language
   end
+
+  specify "should be able to switch to a certain language for the duration of a block" do
+    Gibberish.should.be.default_language
+
+    string = "Welcome, friend!"
+    string[:welcome_friend].should.equal string
+
+    Gibberish.use_language :es do
+      string[:welcome_friend].should.not.equal string
+    Gibberish.should.not.be.default_language
+    end
+
+    Gibberish.should.be.default_language
+    string[:welcome_friend].should.equal string
+  end
 end
 
 context "When no language is set" do