Merge pull request #1101 from koic/make_rails_http_status_aware_of_string_number_status

[Fix #1080] Make `Rails/HttpStatus` aware of string number status

Author: koic

changelog/change_make_rails_http_status_aware_of_string_number_status.md

@@ -0,0 +1 @@
+* [#1080](https://github.com/rubocop/rubocop-rails/issues/1080): Make `Rails/HttpStatus` aware of string number status. ([@r7kamura][])

lib/rubocop/cop/rails/http_status.rb

@@ -8,6 +8,7 @@ module Rails
       # @example EnforcedStyle: symbolic (default)
       #   # bad
       #   render :foo, status: 200
+      #   render :foo, status: '200'
       #   render json: { foo: 'bar' }, status: 200
       #   render plain: 'foo/bar', status: 304
       #   redirect_to root_url, status: 301
@@ -50,7 +51,7 @@ class HttpStatus < Base
         PATTERN
 
         def_node_matcher :status_code, <<~PATTERN
-          (hash <(pair (sym :status) ${int sym}) ...>)
+          (hash <(pair (sym :status) ${int sym str}) ...>)
         PATTERN
 
         def on_send(node)
@@ -108,7 +109,7 @@ def preferred_style
           private
 
           def symbol
-            ::Rack::Utils::SYMBOL_TO_STATUS_CODE.key(number)
+            ::Rack::Utils::SYMBOL_TO_STATUS_CODE.key(number.to_i)
           end
 
           def number

spec/rubocop/cop/rails/http_status_spec.rb

@@ -39,6 +39,17 @@
       RUBY
     end
 
+    it 'registers an offense and corrects using numeric string value' do
+      expect_offense(<<~RUBY)
+        render :foo, status: '200'
+                             ^^^^^ Prefer `:ok` over `200` to define HTTP status code.
+      RUBY
+
+      expect_correction(<<~RUBY)
+        render :foo, status: :ok
+      RUBY
+    end
+
     it 'does not register an offense when using symbolic value' do
       expect_no_offenses(<<~RUBY)
         render :foo, status: :ok