diff --git a/railties/test/generators/app_generator_test.rb b/railties/test/generators/app_generator_test.rb
index 41bb4d8b2047c37db3a6d7eb4e603b65c0be7889..baa80419a6ed80c472988c64833903b579687941 100644
--- a/railties/test/generators/app_generator_test.rb
+++ b/railties/test/generators/app_generator_test.rb
@@ -329,8 +329,8 @@ def test_force_old_style_hash
 
   def test_generated_environments_file_for_sanitizer
     run_generator [destination_root, "--skip-active-record"]
-    ["config/environments/development.rb", "config/environments/test.rb"].each do |env_file|
-      assert_file env_file do |file|
+    %w(development test).each do |env|
+      assert_file "config/environments/#{env}.rb" do |file|
         assert_no_match(/config.active_record.mass_assignment_sanitizer = :strict/, file)
       end
     end
@@ -338,7 +338,7 @@ def test_generated_environments_file_for_sanitizer
 
   def test_generated_environments_file_for_auto_explain
     run_generator [destination_root, "--skip-active-record"]
-    %w(development test production).each do |env|
+    %w(development production).each do |env|
       assert_file "config/environments/#{env}.rb" do |file|
         assert_no_match %r(auto_explain_threshold_in_seconds), file
       end