Require truncate_html only in helper because that's currently the onl…

…y place where it's used. Add specs for Refinery::HtmlTruncationHelper.

core/lib/refinery/core.rb

@@ -1,7 +1,6 @@
 require 'rails/all'
 require 'rbconfig'
 require 'acts_as_indexed'
-require 'truncate_html'
 require 'will_paginate'
 
 module Refinery

core/spec/helpers/refinery/html_truncation_helper_spec.rb

@@ -0,0 +1,24 @@
+require "spec_helper"
+
+module Refinery
+  describe HtmlTruncationHelper do
+
+    it "returns nil if text is not present" do
+      helper.truncate("").should be_nil
+    end
+
+    context "when preserve_html_tags option is present" do
+      it "preserve html tags when truncating text" do
+        helper.truncate("<p>Turducken frankfurter ham hock bacon</p>",
+                        :preserve_html_tags => true).should eq("<p>Turducken frankfurter ham...</p>")
+      end
+    end
+
+    context "when preserve_html_tags option is not present" do
+      it "falls back to original truncate method" do
+        helper.truncate("<p>Turducken frankfurter ham hock bacon</p>").should eq("<p>Turducken frankfurter ha...")
+      end
+    end
+
+  end
+end