* lib/net/imap.rb: includes the sequence number of UID in a error

message.  suggested by art lussos.
  [ruby-core:41413] [Feature #5692]

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@34010 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

ChangeLog

@@ -1,3 +1,9 @@
+Sun Dec 11 12:19:17 2011  Shugo Maeda  <shugo@ruby-lang.org>
+
+	* lib/net/imap.rb: includes the sequence number of UID in a error
+	  message.  suggested by art lussos.
+	  [ruby-core:41413] [Feature #5692]
+
 Sun Dec 11 11:42:10 2011  Kazuki Tsujimoto  <kazuki@callcc.net>
 
 	* ext/syslog/syslog.c: fix a typo. [ruby-core:41585] [Bug #5740]

lib/net/imap.rb

@@ -2180,12 +2180,12 @@ module Net
         when "FETCH"
           shift_token
           match(T_SPACE)
-          data = FetchData.new(n, msg_att)
+          data = FetchData.new(n, msg_att(n))
           return UntaggedResponse.new(name, data, @str)
         end
       end
 
-      def msg_att
+      def msg_att(n)
         match(T_LPAR)
         attr = {}
         while true
@@ -2214,7 +2214,7 @@ module Net
           when /\A(?:UID)\z/ni
             name, val = uid_data
           else
-            parse_error("unknown attribute `%s'", token.value)
+            parse_error("unknown attribute `%s' for {%d}", token.value, n)
           end
           attr[name] = val
         end

test/net/imap/test_imap_response_parser.rb

@@ -116,4 +116,14 @@ EOF
 * 1 FETCH (UID 92285  )
 EOF
   end
+
+  def test_msg_att_parse_error
+    parser = Net::IMAP::ResponseParser.new
+    e = assert_raise(Net::IMAP::ResponseParseError) {
+      response = parser.parse(<<EOF.gsub(/\n/, "\r\n").taint)
+* 123 FETCH (UNKNOWN 92285)
+EOF
+    }
+    assert_match(/ for \{123\}/, e.message)
+  end
 end