* ext/openssl/lib/openssl/digest.rb

test/openssl/test_digest.rb: Add Digest module function to OpenSSL
  module and test it. Patch provided by Eric Hodel.
  [ruby-core:46908][Feature #6819]


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@36592 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

ChangeLog

@@ -1,3 +1,10 @@
+Thu Aug  2 10:51:12 2012  Martin Bosslet  <Martin.Bosslet@gmail.com>
+
+	* ext/openssl/lib/openssl/digest.rb
+	  test/openssl/test_digest.rb: Add Digest module function to OpenSSL
+	  module and test it. Patch provided by Eric Hodel.
+	  [ruby-core:46908][Feature #6819]
+
 Wed Aug  1 22:29:12 2012  Benoit Daloze  <eregontp@gmail.com>
 
 	ext/digest/digest.c (hexencode_str_new): return an ASCII string

ext/openssl/lib/openssl/digest.rb

@@ -68,5 +68,22 @@ module OpenSSL
     end
 
   end # Digest
+
+  # Returns a Digest subclass by +name+.
+  #
+  #   require 'openssl'
+  #
+  #   OpenSSL::Digest("MD5")
+  #   # => OpenSSL::Digest::MD5
+  #
+  #   Digest("Foo")
+  #   # => NameError: wrong constant name Foo
+
+  def Digest(name)
+    OpenSSL::Digest.const_get(name)
+  end
+
+  module_function :Digest
+
 end # OpenSSL
 

test/openssl/test_digest.rb

@@ -103,6 +103,14 @@ class OpenSSL::TestDigest < Test::Unit::TestCase
     end
   end
 
+  def test_openssl_digest
+    assert_equal OpenSSL::Digest::MD5, OpenSSL::Digest("MD5")
+
+    assert_raises NameError do
+      OpenSSL::Digest("no such digest")
+    end
+  end
+
   private
 
   def check_digest(oid)