Temporary Nuclear option on topic titles - disallow non ascii characters so we

can stay on top of the trolls. This is meant to be replaced soon with a more
permissive and safe method of sanitizing.

spec/models/topic_spec.rb

@@ -1,3 +1,5 @@
+# encoding: UTF-8
+
 require 'spec_helper'
 
 describe Topic do
@@ -24,6 +26,18 @@ describe Topic do
 
   it { should rate_limit }
 
+  context 'topic title content' do
+
+    it "allows a regular title with a few ascii characters" do
+      Fabricate.build(:topic, title: "hello this is my cool topic! welcome: all;").should be_valid
+    end
+
+    it "doesn't allow non standard ascii" do
+      Fabricate.build(:topic, title: "Iñtërnâtiônàlizætiøn").should_not be_valid
+    end
+
+  end
+
 
   context 'topic title uniqueness' do