write some file change and deletion tests for better data coverage

middleman-core/lib/middleman-core/application.rb

@@ -170,7 +170,7 @@ module Middleman
     # @private
     # @return [Middleman::Util::Cache] The cache
     def self.cache
-      @_cache ||= ::Middleman::Util::Cache.new
+      @_cache ||= ::Tilt::Cache.new
     end
     delegate :cache, :to => :"self.class"
 

middleman-core/lib/middleman-core/util.rb

@@ -146,62 +146,5 @@ module Middleman
         end
       end.flatten.compact
     end
-
-    # Simple shared cache implementation
-    class Cache
-      # Initialize
-      def initialize
-        self.clear
-      end
-
-      # Either get the cached key or save the contents of the block
-      #
-      # @param key Anything Hash can use as a key
-      def fetch(*key)
-        @cache[key] ||= yield
-      end
-
-      # Whether the key is in the cache
-      #
-      # @param key Anything Hash can use as a key
-      # @return [Boolean]
-      def has_key?(key)
-        @cache.has_key?(key)
-      end
-
-      # Get a specific key
-      #
-      # @param key Anything Hash can use as a key
-      def get(key)
-        @cache[key]
-      end
-
-      # Array of keys
-      # @return [Array]
-      def keys
-        @cache.keys
-      end
-
-      # Clear the entire cache
-      # @return [void]
-      def clear
-        @cache = {}
-      end
-
-      # Set a specific key
-      #
-      # @param key Anything Hash can use as a key
-      # @param value Cached value
-      # @return [void]
-      def set(key, value)
-        @cache[key] = value
-      end
-
-      # Remove a specific key
-      # @param key Anything Hash can use as a key
-      def remove(*key)
-        @cache.delete(key)
-      end
-    end
   end
 end