3 files changed, 8 insertions, 47 deletions
diff --git a/activerecord/test/cases/migration/foreign_key_test.rb b/activerecord/test/cases/migration/foreign_key_test.rb
index 333fb7d4c6..66e2175c48 100644
--- a/activerecord/test/cases/migration/foreign_key_test.rb
+++ b/activerecord/test/cases/migration/foreign_key_test.rb
@@ -1,4 +1,5 @@
 require 'cases/helper'
+require 'active_support/testing/stream'
 require 'support/ddl_helper'
 require 'support/schema_dumping_helper'
 
@@ -8,6 +9,7 @@ module ActiveRecord
     class ForeignKeyTest < ActiveRecord::TestCase
       include DdlHelper
       include SchemaDumpingHelper
+      include ActiveSupport::Testing::Stream
 
       class Rocket < ActiveRecord::Base
       end
@@ -221,17 +223,6 @@ module ActiveRecord
         silence_stream($stdout) { migration.migrate(:down) }
       end
 
-      private
-
-      def silence_stream(stream)
-        old_stream = stream.dup
-        stream.reopen(IO::NULL)
-        stream.sync = true
-        yield
-      ensure
-        stream.reopen(old_stream)
-        old_stream.close
-      end
     end
   end
 end
diff --git a/activerecord/test/cases/migration_test.rb b/activerecord/test/cases/migration_test.rb
index 6ea8b93be7..d969345361 100644
--- a/activerecord/test/cases/migration_test.rb
+++ b/activerecord/test/cases/migration_test.rb
@@ -1,3 +1,4 @@
+require 'active_support/testing/stream'
 require "cases/helper"
 require "cases/migration/helper"
 require 'bigdecimal/util'
@@ -721,6 +722,8 @@ if ActiveRecord::Base.connection.supports_bulk_alter?
 end
 
 class CopyMigrationsTest < ActiveRecord::TestCase
+  include ActiveSupport::Testing::Stream
+
   def setup
   end
 
@@ -930,23 +933,4 @@ class CopyMigrationsTest < ActiveRecord::TestCase
     ActiveRecord::Base.logger = old
   end
 
-  private
-
-  def quietly
-    silence_stream(STDOUT) do
-      silence_stream(STDERR) do
-        yield
-      end
-    end
-  end
-
-  def silence_stream(stream)
-    old_stream = stream.dup
-    stream.reopen(IO::NULL)
-    stream.sync = true
-    yield
-  ensure
-    stream.reopen(old_stream)
-    old_stream.close
-  end
 end
diff --git a/activerecord/test/cases/test_case.rb b/activerecord/test/cases/test_case.rb
index 5ba17359f0..e0b01ae8e0 100644
--- a/activerecord/test/cases/test_case.rb
+++ b/activerecord/test/cases/test_case.rb
@@ -1,10 +1,13 @@
 require 'active_support/test_case'
+require 'active_support/testing/stream'
 
 module ActiveRecord
   # = Active Record Test Case
   #
   # Defines some test assertions to test against SQL queries.
   class TestCase < ActiveSupport::TestCase #:nodoc:
+    include ActiveSupport::Testing::Stream
+
     def teardown
       SQLCounter.clear_log
     end
@@ -13,23 +16,6 @@ module ActiveRecord
       assert_equal expected.to_s, actual.to_s, message
     end
 
-    def capture(stream)
-      stream = stream.to_s
-      captured_stream = Tempfile.new(stream)
-      stream_io = eval("$#{stream}")
-      origin_stream = stream_io.dup
-      stream_io.reopen(captured_stream)
-
-      yield
-
-      stream_io.rewind
-      return captured_stream.read
-    ensure
-      captured_stream.close
-      captured_stream.unlink
-      stream_io.reopen(origin_stream)
-    end
-
     def capture_sql
       SQLCounter.clear_log
       yield