3 files changed, 50 insertions, 2 deletions
diff --git a/railties/lib/rails/commands/console.rb b/railties/lib/rails/commands/console.rb
index 78580b220c..4497ef61df 100644
--- a/railties/lib/rails/commands/console.rb
+++ b/railties/lib/rails/commands/console.rb
@@ -37,7 +37,7 @@ module Rails
       private
 
         def available_environments
-          Dir[Rails.root.join('config', 'environments', '*.rb')].map { |fname| File.basename(fname, '.*') }
+          Dir['config/environments/*.rb'].map { |fname| File.basename(fname, '.*') }
         end
     end
 
diff --git a/railties/lib/rails/commands/dbconsole.rb b/railties/lib/rails/commands/dbconsole.rb
index 2d1e2d6a45..5914c9e4ae 100644
--- a/railties/lib/rails/commands/dbconsole.rb
+++ b/railties/lib/rails/commands/dbconsole.rb
@@ -147,7 +147,7 @@ module Rails
     end
 
     def available_environments
-      Dir[Rails.root.join('config', 'environments', '*.rb')].map { |fname| File.basename(fname, '.*') }
+      Dir['config/environments/*.rb'].map { |fname| File.basename(fname, '.*') }
     end
 
     def find_cmd_and_exec(commands, *args)
diff --git a/railties/test/application/configuration_test.rb b/railties/test/application/configuration_test.rb
index 920798c930..e41b21e21a 100644
--- a/railties/test/application/configuration_test.rb
+++ b/railties/test/application/configuration_test.rb
@@ -567,6 +567,54 @@ module ApplicationTests
       assert_equal 'permitted', last_response.body
     end
 
+    test "config.action_controller.raise_on_unpermitted_parameters = true" do
+      app_file 'app/controllers/posts_controller.rb', <<-RUBY
+      class PostsController < ActionController::Base
+        def create
+          render text: params.require(:post).permit(:name)
+        end
+      end
+      RUBY
+
+      add_to_config <<-RUBY
+        routes.prepend do
+          resources :posts
+        end
+        config.action_controller.raise_on_unpermitted_parameters = true
+      RUBY
+
+      require "#{app_path}/config/environment"
+
+      assert_equal true, ActionController::Parameters.raise_on_unpermitted_parameters
+
+      post "/posts", {post: {"title" =>"zomg"}}
+      assert_match "We're sorry, but something went wrong", last_response.body
+    end
+
+    test "config.action_controller.raise_on_unpermitted_parameters is true by default on development" do
+      ENV["RAILS_ENV"] = "development"
+
+      require "#{app_path}/config/environment"
+
+      assert_equal true, ActionController::Parameters.raise_on_unpermitted_parameters
+    end
+
+    test "config.action_controller.raise_on_unpermitted_parameters is true by defaul on test" do
+      ENV["RAILS_ENV"] = "test"
+
+      require "#{app_path}/config/environment"
+
+      assert_equal true, ActionController::Parameters.raise_on_unpermitted_parameters
+    end
+
+    test "config.action_controller.raise_on_unpermitted_parameters is false by default on production" do
+      ENV["RAILS_ENV"] = "production"
+
+      require "#{app_path}/config/environment"
+
+      assert_equal false, ActionController::Parameters.raise_on_unpermitted_parameters
+    end
+
     test "config.action_dispatch.ignore_accept_header" do
       make_basic_app do |app|
         app.config.action_dispatch.ignore_accept_header = true