FEATURE: move stylesheet cache out of the uploads directory

spec/models/stylesheet_cache_spec.rb

@@ -0,0 +1,24 @@
+require 'spec_helper'
+
+describe StylesheetCache do
+
+  describe "add" do
+    it "correctly cycles once MAX_TO_KEEP is hit" do
+      (StylesheetCache::MAX_TO_KEEP + 1).times do |i|
+        StylesheetCache.add(i.to_s, "d" + i.to_s, "c" + i.to_s)
+      end
+
+      expect(StylesheetCache.count).to eq StylesheetCache::MAX_TO_KEEP
+      expect(StylesheetCache.order(:id).first.content).to eq "c1"
+    end
+
+    it "does nothing if digest is set and already exists" do
+      StylesheetCache.add("a", "b", "c")
+      StylesheetCache.add("a", "b", "cc")
+
+      expect(StylesheetCache.count).to eq 1
+      expect(StylesheetCache.first.content).to eq "c"
+    end
+
+  end
+end