1 files changed, 10 insertions, 0 deletions
diff --git a/activerecord/test/cases/migration_test.rb b/activerecord/test/cases/migration_test.rb
index 3192b797b4..5829ef2100 100644
--- a/activerecord/test/cases/migration_test.rb
+++ b/activerecord/test/cases/migration_test.rb
@@ -936,4 +936,14 @@ class CopyMigrationsTest < ActiveRecord::TestCase
       end
     end
   end
+
+  def silence_stream(stream)
+    old_stream = stream.dup
+    stream.reopen(RbConfig::CONFIG['host_os'] =~ /mswin|mingw/ ? 'NUL:' : '/dev/null')
+    stream.sync = true
+    yield
+  ensure
+    stream.reopen(old_stream)
+    old_stream.close
+  end
 end