1 files changed, 16 insertions, 0 deletions
diff --git a/railties/test/application/configuration_test.rb b/railties/test/application/configuration_test.rb
index a7df1e09ab..1f04eb9f75 100644
--- a/railties/test/application/configuration_test.rb
+++ b/railties/test/application/configuration_test.rb
@@ -100,5 +100,21 @@ module ApplicationTests
 
       assert !ActionController.autoload?(:RecordIdentifier)
     end
+
+    test "runtime error is raised if config.frameworks= is used" do
+      add_to_config "config.frameworks = []"
+
+      assert_raises RuntimeError do
+        require "#{app_path}/config/environment"
+      end
+    end
+
+    test "runtime error is raised if config.frameworks is used" do
+      add_to_config "config.frameworks -= []"
+
+      assert_raises RuntimeError do
+        require "#{app_path}/config/environment"
+      end
+    end
   end
 end