2 files changed, 36 insertions, 2 deletions
diff --git a/railties/test/application/rake/dbs_test.rb b/railties/test/application/rake/dbs_test.rb
index c000a70382..a229609e84 100644
--- a/railties/test/application/rake/dbs_test.rb
+++ b/railties/test/application/rake/dbs_test.rb
@@ -222,14 +222,14 @@ module ApplicationTests
 
           assert_equal '["posts"]', list_tables[]
           `bin/rails db:schema:load`
-          assert_equal '["posts", "comments", "schema_migrations", "active_record_internal_metadatas"]', list_tables[]
+          assert_equal '["posts", "comments", "schema_migrations", "ar_internal_metadata"]', list_tables[]
 
           app_file 'db/structure.sql', <<-SQL
             CREATE TABLE "users" ("id" INTEGER PRIMARY KEY AUTOINCREMENT NOT NULL, "name" varchar(255));
           SQL
 
           `bin/rails db:structure:load`
-          assert_equal '["posts", "comments", "schema_migrations", "active_record_internal_metadatas", "users"]', list_tables[]
+          assert_equal '["posts", "comments", "schema_migrations", "ar_internal_metadata", "users"]', list_tables[]
         end
       end
 
diff --git a/railties/test/application/rake/dev_test.rb b/railties/test/application/rake/dev_test.rb
new file mode 100644
index 0000000000..43d7a5e156
--- /dev/null
+++ b/railties/test/application/rake/dev_test.rb
@@ -0,0 +1,34 @@
+require 'isolation/abstract_unit'
+
+module ApplicationTests
+  module RakeTests
+    class RakeDevTest < ActiveSupport::TestCase
+      include ActiveSupport::Testing::Isolation
+
+      def setup
+        build_app
+      end
+
+      def teardown
+        teardown_app
+      end
+
+      test 'dev:cache creates file and outputs message' do
+        Dir.chdir(app_path) do
+          output = `rake dev:cache`
+          assert File.exist?('tmp/caching-dev.txt')
+          assert_match(/Development mode is now being cached/, output)
+        end
+      end
+
+      test 'dev:cache deletes file and outputs message' do
+        Dir.chdir(app_path) do
+          `rails dev:cache` # Create caching file.
+          output = `rails dev:cache` # Delete caching file.
+          assert_not File.exist?('tmp/caching-dev.txt')
+          assert_match(/Development mode is no longer being cached/, output)
+        end
+      end
+    end
+  end
+end