4 files changed, 4 insertions, 1 deletions
diff --git a/railties/test/application/rake/dev_test.rb b/railties/test/application/rake/dev_test.rb
index e408760ecc..a87f453075 100644
--- a/railties/test/application/rake/dev_test.rb
+++ b/railties/test/application/rake/dev_test.rb
@@ -9,6 +9,7 @@ module ApplicationTests
 
       def setup
         build_app
+        add_to_env_config("development", "config.active_support.deprecation = :stderr")
       end
 
       def teardown
diff --git a/railties/test/application/rake/initializers_test.rb b/railties/test/application/rake/initializers_test.rb
index fb498e28ad..8de4967021 100644
--- a/railties/test/application/rake/initializers_test.rb
+++ b/railties/test/application/rake/initializers_test.rb
@@ -29,6 +29,8 @@ module ApplicationTests
       end
 
       test "`rake initializers` outputs a deprecation warning" do
+        add_to_env_config("development", "config.active_support.deprecation = :stderr")
+
         stderr = capture(:stderr) { run_rake_initializers }
         assert_match(/DEPRECATION WARNING: Using `bin\/rake initializers` is deprecated and will be removed in Rails 6.1/, stderr)
       end
diff --git a/railties/test/application/rake/notes_test.rb b/railties/test/application/rake/notes_test.rb
index 9e22ba84b5..60802ef7c4 100644
--- a/railties/test/application/rake/notes_test.rb
+++ b/railties/test/application/rake/notes_test.rb
@@ -10,6 +10,7 @@ module ApplicationTests
 
       def setup
         build_app
+        add_to_env_config("development", "config.active_support.deprecation = :stderr")
         require "rails/all"
         super
       end
diff --git a/railties/test/application/rake/routes_test.rb b/railties/test/application/rake/routes_test.rb
index e49ce50b69..2c23ff4679 100644
--- a/railties/test/application/rake/routes_test.rb
+++ b/railties/test/application/rake/routes_test.rb
@@ -28,7 +28,6 @@ update_rails_disk_service PUT  /rails/active_storage/disk/:encoded_token(.:forma
       end
 
       test "`rake routes` outputs a deprecation warning" do
-        remove_from_env_config("development", ".*config\.active_support\.deprecation.*\n")
         add_to_env_config("development", "config.active_support.deprecation = :stderr")
 
         stderr = capture(:stderr) { run_rake_routes }