2 files changed, 19 insertions, 0 deletions
diff --git a/activesupport/lib/active_support/tagged_logging.rb b/activesupport/lib/active_support/tagged_logging.rb
index 18bc919734..09bfc95231 100644
--- a/activesupport/lib/active_support/tagged_logging.rb
+++ b/activesupport/lib/active_support/tagged_logging.rb
@@ -54,6 +54,14 @@ module ActiveSupport
         end
     end
 
+    def self.create(f, formatter, level)
+      logger = ActiveSupport::Logger.new f
+      logger.formatter = formatter
+      logger = new(logger)
+      logger.level = ActiveSupport::Logger.const_get(level.to_s.upcase)
+      logger
+    end
+
     def self.new(logger)
       # Ensure we set a default formatter so we aren't extending nil!
       logger.formatter ||= ActiveSupport::Logger::SimpleFormatter.new
diff --git a/activesupport/test/tagged_logging_test.rb b/activesupport/test/tagged_logging_test.rb
index 27f629474e..0f5b2cba8f 100644
--- a/activesupport/test/tagged_logging_test.rb
+++ b/activesupport/test/tagged_logging_test.rb
@@ -22,6 +22,17 @@ class TaggedLoggingTest < ActiveSupport::TestCase
     assert logger.formatter.respond_to?(:tagged)
   end
 
+  test 'creates a tagged logger with the appropriate level and formatter' do
+    stringio = StringIO.new
+    logger = ActiveSupport::TaggedLogging.create(stringio, ActiveSupport::Logger::SimpleFormatter.new, :debug)
+    logger.debug("foo")
+
+    assert_not_nil logger.formatter
+    assert logger.formatter.respond_to?(:tagged)
+    assert_equal 0, logger.level
+    assert stringio.string.include?("foo")
+  end
+
   test "tagged once" do
     @logger.tagged("BCX") { @logger.info "Funky time" }
     assert_equal "[BCX] Funky time\n", @output.string