chore: rubocop lint Style/StructInheritance (#904)

.rubocop_todo.yml

@@ -424,14 +424,7 @@ Style/StringLiteralsInInterpolation:
     - 'lib/faraday/options/env.rb'
     - 'spec/faraday/utils_spec.rb'
 
-# Offense count: 3
-Style/StructInheritance:
-  Exclude:
-    - 'lib/faraday/adapter/test.rb'
-    - 'lib/faraday/request.rb'
-    - 'spec/faraday/rack_builder_spec.rb'
-
-# Offense count: 272
+# Offense count: 271
 # Configuration parameters: AllowHeredoc, AllowURI, URISchemes, IgnoreCopDirectives, IgnoredPatterns.
 # URISchemes: http, https
 Metrics/LineLength:

lib/faraday/adapter/test.rb

@@ -132,7 +132,10 @@ module Faraday
         end
       end
 
+      # rubocop:disable Style/StructInheritance
       class Stub < Struct.new(:host, :path, :params, :headers, :body, :block)
+        # rubocop:enable Style/StructInheritance
+
         def initialize(host, full, headers, body, block)
           path, query = full.respond_to?(:split) ? full.split('?') : full
           params = query ?

lib/faraday/request.rb

@@ -24,7 +24,11 @@ module Faraday
   #   @return [Hash] body
   # @!attribute options
   #   @return [RequestOptions] options
+  #
+  # rubocop:disable Style/StructInheritance
   class Request < Struct.new(:method, :path, :params, :headers, :body, :options)
+    # rubocop:enable Style/StructInheritance
+
     extend MiddlewareRegistry
 
     register_middleware File.expand_path('request', __dir__),

spec/faraday/rack_builder_spec.rb

@@ -2,7 +2,7 @@
 
 RSpec.describe Faraday::RackBuilder do
   # mock handler classes
-  class Handler < Struct.new(:app)
+  (Handler = Struct.new(:app)).class_eval do
     def call(env)
       env[:request_headers]['X-Middleware'] ||= ''
       env[:request_headers]['X-Middleware'] += ":#{self.class.name.split('::').last}"