BufferedLogger#add converts the message to a string. Closes #9724.

git-svn-id: http://svn-commit.rubyonrails.org/rails/trunk@7664 5ecf4fe2-1ee6-0310-87b1-e25e094e27de

activesupport/CHANGELOG

@@ -4,7 +4,7 @@
 
 * Backport Object#instance_variable_defined? for Ruby < 1.8.6.  [Jeremy Kemper]
 
-* BufferedLogger#add doesn't modify the message argument.  #9702 [eigentone]
+* BufferedLogger#add converts the message to a string.  #9702, #9724 [eigentone, DrMark, tomafro]
 
 * Added ActiveSupport::BufferedLogger as a duck-typing alternative (albeit with no formatter) to the Ruby Logger, which provides a very nice speed bump (inspired by Ezra's buffered logger) [DHH]
 

activesupport/lib/active_support/buffered_logger.rb

@@ -51,7 +51,7 @@ def initialize(log, level = DEBUG)
 
     def add(severity, message = nil, progname = nil, &block)
       return if @level > severity
-      message = message || (block && block.call) || progname
+      message = (message || (block && block.call) || progname).to_s
       # If a newline is necessary then create a new message ending with a newline.
       # Ensures that the original message is not mutated.
       message = "#{message}\n" unless message[-1] == ?\n

activesupport/test/buffered_logger_test.rb

@@ -4,6 +4,7 @@
 class BufferedLoggerTest < Test::Unit::TestCase
   def setup
     @message = "A debug message"
+    @integer_message = 12345
     @output  = StringIO.new
     @logger  = ActiveSupport::BufferedLogger.new(@output)
   end
@@ -32,6 +33,18 @@ def test_should_add_message_passed_as_block_when_using_shortcut
     assert @output.string.include?(@message)
   end
 
+  def test_should_convert_message_to_string
+    @logger.level = Logger::INFO
+    @logger.info @integer_message
+    assert @output.string.include?(@integer_message.to_s)
+  end
+
+  def test_should_convert_message_to_string_when_passed_in_block
+    @logger.level = Logger::INFO
+    @logger.info {@integer_message}
+    assert @output.string.include?(@integer_message.to_s)
+  end
+
   def test_should_not_evaluate_block_if_message_wont_be_logged
     @logger.level = Logger::INFO
     evaluated = false