Add with_inertia_config test helper and turn on :random order

Author: skryukov

spec/inertia/sharing_spec.rb

@@ -70,12 +70,8 @@
     end
 
     context 'with deep merge configured as the default' do
-      before {
-        InertiaRails.configure { |config| config.deep_merge_shared_data = true }
-      }
-      after {
-        InertiaRails.configure { |config| config.deep_merge_shared_data = false }
-      }
+      with_inertia_config deep_merge_shared_data: true
+
       describe 'deep merging by default' do
         let(:props) { { nested: { goals: 100, assists: 200 } } }
         before { get merge_shared_path, headers: {'X-Inertia' => true} }

spec/inertia/ssr_spec.rb

@@ -3,13 +3,7 @@
 
 RSpec.describe 'inertia ssr', type: :request do
   context 'ssr is enabled' do
-    before do
-      InertiaRails.configure do |config|
-        config.ssr_enabled = true
-        config.ssr_url = 'ssr-url'
-        config.version = '1.0'
-      end
-    end
+    with_inertia_config ssr_enabled: true, ssr_url: 'ssr-url', version: '1.0'
 
     context 'with a successful ssr response' do
       before do

spec/spec_helper.rb

@@ -7,6 +7,8 @@
 
   config.filter_run_when_matching :focus
 
+  config.order = :random
+
   config.expect_with :rspec do |c|
     c.syntax = :expect
   end

spec/support/helper_module.rb

@@ -1,6 +1,10 @@
 # frozen_string_literal: true
 
 module HelperModule
+  def self.included(base)
+    base.extend(ClassMethods)
+  end
+
   def with_forgery_protection
     orig = ActionController::Base.allow_forgery_protection
     begin
@@ -20,4 +24,17 @@ def with_env(**env)
       ENV.replace(orig)
     end
   end
+
+  module ClassMethods
+    def with_inertia_config(**props)
+      around do |example|
+        config = InertiaRails.configuration
+        orig_options = config.send(:options).dup
+        config.merge!(InertiaRails::Configuration.new(**props))
+        example.run
+      ensure
+        config.instance_variable_set(:@options, orig_options)
+      end
+    end
+  end
 end