diff --git a/railties/test/application/configuration_test.rb b/railties/test/application/configuration_test.rb
index 21244188dd..845626379d 100644
--- a/railties/test/application/configuration_test.rb
+++ b/railties/test/application/configuration_test.rb
@@ -891,79 +891,79 @@ module ApplicationTests
     end
 
     test "rake_tasks block works at instance level" do
-      $ran_block = false
-
       app_file "config/environments/development.rb", <<-RUBY
         Rails.application.configure do
+          config.ran_block = false
+
           rake_tasks do
-            $ran_block = true
+            config.ran_block = true
           end
         end
       RUBY
 
       require "#{app_path}/config/environment"
+      assert_not Rails.configuration.ran_block
 
-      assert !$ran_block
       require 'rake'
       require 'rake/testtask'
       require 'rdoc/task'
 
       Rails.application.load_tasks
-      assert $ran_block
+      assert Rails.configuration.ran_block
     end
 
     test "generators block works at instance level" do
-      $ran_block = false
-
       app_file "config/environments/development.rb", <<-RUBY
         Rails.application.configure do
+          config.ran_block = false
+
           generators do
-            $ran_block = true
+            config.ran_block = true
           end
         end
       RUBY
 
       require "#{app_path}/config/environment"
+      assert_not Rails.configuration.ran_block
 
-      assert !$ran_block
       Rails.application.load_generators
-      assert $ran_block
+      assert Rails.configuration.ran_block
     end
 
     test "console block works at instance level" do
-      $ran_block = false
-
       app_file "config/environments/development.rb", <<-RUBY
         Rails.application.configure do
+          config.ran_block = false
+
           console do
-            $ran_block = true
+            config.ran_block = true
           end
         end
       RUBY
 
       require "#{app_path}/config/environment"
+      assert_not Rails.configuration.ran_block
 
-      assert !$ran_block
       Rails.application.load_console
-      assert $ran_block
+      assert Rails.configuration.ran_block
     end
 
     test "runner block works at instance level" do
-      $ran_block = false
-
       app_file "config/environments/development.rb", <<-RUBY
         Rails.application.configure do
+          config.ran_block = false
+
           runner do
-            $ran_block = true
+            config.ran_block = true
           end
         end
       RUBY
 
       require "#{app_path}/config/environment"
+      assert_not Rails.configuration.ran_block
 
-      assert !$ran_block
       Rails.application.load_runner
-      assert $ran_block
+      assert Rails.configuration.ran_block
     end
 
     test "loading the first existing database configuration available" do