Handle positional vs. kwargs for get

In Rails 5.0 positional args for HTTP request methods were deprecated
so conditionally override get to do the transition from kwargs to
the older positional format.

Author: pixeltrix

test/caching_test.rb

@@ -426,7 +426,7 @@ def test_action_cache_with_symbol_cache_path
     assert_response :success
     assert fragment_exist?('controller')
 
-    get :symbol_cache_path, id: 1
+    get :symbol_cache_path, params: { id: 1 }
     assert_response :success
     assert fragment_exist?('controller-1')
   end
@@ -720,4 +720,15 @@ def draw(&block)
       @routes.draw(&block)
       @controller.extend(@routes.url_helpers)
     end
+
+    if ActionPack::VERSION::STRING < '5.0'
+      def get(action, options = {})
+        format = options.slice(:format)
+        params = options[:params] || {}
+        session = options[:session] || {}
+        flash = options[:flash] || {}
+
+        super(action, params.merge(format), session, flash)
+      end
+    end
 end