Rack::Lint compatibility

lib/lotus/action/head.rb

@@ -30,11 +30,9 @@ module Head
         'Allow'            => true,
         'Content-Encoding' => true,
         'Content-Language' => true,
-        'Content-Length'   => true,
         'Content-Location' => true,
         'Content-MD5'      => true,
         'Content-Range'    => true,
-        'Content-Type'     => true,
         'Expires'          => true,
         'Last-Modified'    => true,
         'extension-header' => true

test/integration/head_test.rb

@@ -62,21 +62,18 @@ def response
         response.headers['Content-Language'].must_equal 'en'
       end
 
-      # FIXME Review this
-      unless [204, 205, 304].include?(code)
-        it "sends Content-Length header" do
-          get "/code/#{ code }"
+      it "doesn't send Content-Length header" do
+        get "/code/#{ code }"
 
-          response.status.must_equal(code)
-          response.headers['Content-Length'].must_equal 4
-        end
+        response.status.must_equal(code)
+        response.headers.key?('Content-Length').must_equal false
+      end
 
-        it "sends Content-Type header" do
-          get "/code/#{ code }"
+      it "doesn't send Content-Type header" do
+        get "/code/#{ code }"
 
-          response.status.must_equal(code)
-          response.headers['Content-Type'].must_equal 'application/octet-stream; charset=utf-8'
-        end
+        response.status.must_equal(code)
+        response.headers.key?('Content-Type').must_equal false
       end
 
       it "sends Content-Location header" do