as.diff

diff --git a/activerecord/lib/active_record/fixtures.rb b/activerecord/lib/active_record/fixtures.rb
index 4cd5f92..4306b36 100644
--- a/activerecord/lib/active_record/fixtures.rb
+++ b/activerecord/lib/active_record/fixtures.rb
@@ -2,7 +2,7 @@ require 'erb'
 require 'yaml'
 require 'zlib'
 require 'active_support/dependencies'
-require 'active_support/core_ext/securerandom'
+require 'active_support/core_ext/digest/uuid'
 require 'active_record/fixture_set/file'
 require 'active_record/errors'
 
@@ -551,7 +551,7 @@ module ActiveRecord
     # Integer identifiers are values less than 2^30. UUIDs are RFC 4122 version 5 SHA-1 hashes.
     def self.identify(label, column_type = :integer)
       if column_type == :uuid
-        SecureRandom.uuid_v5(SecureRandom::UUID_OID_NAMESPACE, label.to_s)
+        Digest::UUID.uuid_v5(Digest::UUID::OID_NAMESPACE, label.to_s)
       else
         Zlib.crc32(label.to_s) % MAX_ID
       end
diff --git a/activesupport/CHANGELOG.md b/activesupport/CHANGELOG.md
index a667332..214722a 100644
--- a/activesupport/CHANGELOG.md
+++ b/activesupport/CHANGELOG.md
@@ -160,7 +160,7 @@
 
     *Bogdan Gusiev*
 
-*   Add `SecureRandom::uuid_v3` and `SecureRandom::uuid_v5` to support stable
+*   Add `Digest::UUID::uuid_v3` and `Digest::UUID::uuid_v5` to support stable
     UUID fixtures on PostgreSQL.
 
     *Roderick van Domburg*
diff --git a/activesupport/lib/active_support/core_ext/digest/uuid.rb b/activesupport/lib/active_support/core_ext/digest/uuid.rb
new file mode 100644
index 0000000..593c51b
--- /dev/null
+++ b/activesupport/lib/active_support/core_ext/digest/uuid.rb
@@ -0,0 +1,51 @@
+require 'securerandom'
+
+module Digest
+  module UUID
+    DNS_NAMESPACE  = "k\xA7\xB8\x10\x9D\xAD\x11\xD1\x80\xB4\x00\xC0O\xD40\xC8" #:nodoc:
+    URL_NAMESPACE  = "k\xA7\xB8\x11\x9D\xAD\x11\xD1\x80\xB4\x00\xC0O\xD40\xC8" #:nodoc:
+    OID_NAMESPACE  = "k\xA7\xB8\x12\x9D\xAD\x11\xD1\x80\xB4\x00\xC0O\xD40\xC8" #:nodoc:
+    X500_NAMESPACE = "k\xA7\xB8\x14\x9D\xAD\x11\xD1\x80\xB4\x00\xC0O\xD40\xC8" #:nodoc:
+
+    # Generates a v5 non-random UUID (Universally Unique IDentifier).
+    #
+    # Using Digest::MD5 generates version 3 UUIDs; Digest::SHA1 generates version 5 UUIDs.
+    # uuid_from_hash always generates the same UUID for a given name and namespace combination.
+    #
+    # See RFC 4122 for details of UUID at: http://www.ietf.org/rfc/rfc4122.txt
+    def self.uuid_from_hash(hash_class, uuid_namespace, name)
+      if hash_class == Digest::MD5
+        version = 3
+      elsif hash_class == Digest::SHA1
+        version = 5
+      else
+        raise ArgumentError, "Expected Digest::SHA1 or Digest::MD5, got #{hash_class.name}."
+      end
+
+      hash = hash_class.new
+      hash.update(uuid_namespace)
+      hash.update(name)
+
+      ary = hash.digest.unpack('NnnnnN')
+      ary[2] = (ary[2] & 0x0FFF) | (version << 12)
+      ary[3] = (ary[3] & 0x3FFF) | 0x8000
+
+      "%08x-%04x-%04x-%04x-%04x%08x" % ary
+    end
+
+    # Convenience method for uuid_from_hash using Digest::MD5.
+    def self.uuid_v3(uuid_namespace, name)
+      self.uuid_from_hash(Digest::MD5, uuid_namespace, name)
+    end
+
+    # Convenience method for uuid_from_hash using Digest::SHA1.
+    def self.uuid_v5(uuid_namespace, name)
+      self.uuid_from_hash(Digest::SHA1, uuid_namespace, name)
+    end
+
+    # Convenience method for SecureRandom.uuid.
+    def self.uuid_v4
+      SecureRandom.uuid
+    end
+  end
+end
diff --git a/activesupport/lib/active_support/core_ext/securerandom.rb b/activesupport/lib/active_support/core_ext/securerandom.rb
deleted file mode 100644
index ff1eb52..0000000
--- a/activesupport/lib/active_support/core_ext/securerandom.rb
+++ /dev/null
@@ -1,47 +0,0 @@
-module SecureRandom #:nodoc:
-  UUID_DNS_NAMESPACE  = "k\xA7\xB8\x10\x9D\xAD\x11\xD1\x80\xB4\x00\xC0O\xD40\xC8" #:nodoc:
-  UUID_URL_NAMESPACE  = "k\xA7\xB8\x11\x9D\xAD\x11\xD1\x80\xB4\x00\xC0O\xD40\xC8" #:nodoc:
-  UUID_OID_NAMESPACE  = "k\xA7\xB8\x12\x9D\xAD\x11\xD1\x80\xB4\x00\xC0O\xD40\xC8" #:nodoc:
-  UUID_X500_NAMESPACE = "k\xA7\xB8\x14\x9D\xAD\x11\xD1\x80\xB4\x00\xC0O\xD40\xC8" #:nodoc:
-  
-  # Generates a v5 non-random UUID (Universally Unique IDentifier).
-  #
-  # Using Digest::MD5 generates version 3 UUIDs; Digest::SHA1 generates version 5 UUIDs.
-  # ::uuid_from_hash always generates the same UUID for a given name and namespace combination.
-  #
-  # See RFC 4122 for details of UUID at: http://www.ietf.org/rfc/rfc4122.txt
-  def self.uuid_from_hash(hash_class, uuid_namespace, name) #:nodoc:
-    if hash_class == Digest::MD5
-      version = 3
-    elsif hash_class == Digest::SHA1
-      version = 5
-    else
-      raise ArgumentError, "Expected Digest::SHA1 or Digest::MD5, got #{hash_class.name}."
-    end
-
-    hash = hash_class.new
-    hash.update(uuid_namespace)
-    hash.update(name)
-
-    ary = hash.digest.unpack('NnnnnN')
-    ary[2] = (ary[2] & 0x0FFF) | (version << 12)
-    ary[3] = (ary[3] & 0x3FFF) | 0x8000
-
-    "%08x-%04x-%04x-%04x-%04x%08x" % ary
-  end
-
-  # Convenience method for ::uuid_from_hash using Digest::MD5.
-  def self.uuid_v3(uuid_namespace, name) #:nodoc:
-    self.uuid_from_hash(Digest::MD5, uuid_namespace, name)
-  end
-
-  # Convenience method for ::uuid_from_hash using Digest::SHA1.
-  def self.uuid_v5(uuid_namespace, name) #:nodoc:
-    self.uuid_from_hash(Digest::SHA1, uuid_namespace, name)
-  end
-
-  class << self
-    # Alias for ::uuid.
-    alias_method :uuid_v4, :uuid
-  end
-end
diff --git a/activesupport/test/core_ext/digest/uuid_test.rb b/activesupport/test/core_ext/digest/uuid_test.rb
new file mode 100644
index 0000000..08e0a1d
--- /dev/null
+++ b/activesupport/test/core_ext/digest/uuid_test.rb
@@ -0,0 +1,24 @@
+require 'abstract_unit'
+require 'active_support/core_ext/digest/uuid'
+
+class DigestUUIDExt < ActiveSupport::TestCase
+  def test_v3_uuids
+    assert_equal "3d813cbb-47fb-32ba-91df-831e1593ac29", Digest::UUID.uuid_v3(Digest::UUID::DNS_NAMESPACE, "www.widgets.com")
+    assert_equal "86df55fb-428e-3843-8583-ba3c05f290bc", Digest::UUID.uuid_v3(Digest::UUID::URL_NAMESPACE, "http://www.widgets.com")
+    assert_equal "8c29ab0e-a2dc-3482-b5eb-20cb2e2387a1", Digest::UUID.uuid_v3(Digest::UUID::OID_NAMESPACE, "1.2.3")
+    assert_equal "ee49149d-53a4-304a-890b-468229f6afc3", Digest::UUID.uuid_v3(Digest::UUID::X500_NAMESPACE, "cn=John Doe, ou=People, o=Acme, Inc., c=US")
+  end
+
+  def test_v5_uuids
+    assert_equal "21f7f8de-8051-5b89-8680-0195ef798b6a", Digest::UUID.uuid_v5(Digest::UUID::DNS_NAMESPACE, "www.widgets.com")
+    assert_equal "4e570fd8-186d-5a74-90f0-4d28e34673a1", Digest::UUID.uuid_v5(Digest::UUID::URL_NAMESPACE, "http://www.widgets.com")
+    assert_equal "42d5e23b-3a02-5135-85c6-52d1102f1f00", Digest::UUID.uuid_v5(Digest::UUID::OID_NAMESPACE, "1.2.3")
+    assert_equal "fd5b2ddf-bcfe-58b6-90d6-db50f74db527", Digest::UUID.uuid_v5(Digest::UUID::X500_NAMESPACE, "cn=John Doe, ou=People, o=Acme, Inc., c=US")
+  end
+
+  def test_invalid_hash_class
+    assert_raise ArgumentError do
+      Digest::UUID.uuid_from_hash(Digest::SHA2, Digest::UUID::OID_NAMESPACE, '1.2.3')
+    end
+  end
+end
diff --git a/activesupport/test/core_ext/securerandom_test.rb b/activesupport/test/core_ext/securerandom_test.rb
deleted file mode 100644
index 71980f6..0000000
--- a/activesupport/test/core_ext/securerandom_test.rb
+++ /dev/null
@@ -1,28 +0,0 @@
-require 'abstract_unit'
-require 'active_support/core_ext/securerandom'
-
-class SecureRandomExt < ActiveSupport::TestCase
-  def test_v3_uuids
-    assert_equal "3d813cbb-47fb-32ba-91df-831e1593ac29", SecureRandom.uuid_v3(SecureRandom::UUID_DNS_NAMESPACE, "www.widgets.com")
-    assert_equal "86df55fb-428e-3843-8583-ba3c05f290bc", SecureRandom.uuid_v3(SecureRandom::UUID_URL_NAMESPACE, "http://www.widgets.com")
-    assert_equal "8c29ab0e-a2dc-3482-b5eb-20cb2e2387a1", SecureRandom.uuid_v3(SecureRandom::UUID_OID_NAMESPACE, "1.2.3")
-    assert_equal "ee49149d-53a4-304a-890b-468229f6afc3", SecureRandom.uuid_v3(SecureRandom::UUID_X500_NAMESPACE, "cn=John Doe, ou=People, o=Acme, Inc., c=US")
-  end
-
-  def test_v5_uuids
-    assert_equal "21f7f8de-8051-5b89-8680-0195ef798b6a", SecureRandom.uuid_v5(SecureRandom::UUID_DNS_NAMESPACE, "www.widgets.com")
-    assert_equal "4e570fd8-186d-5a74-90f0-4d28e34673a1", SecureRandom.uuid_v5(SecureRandom::UUID_URL_NAMESPACE, "http://www.widgets.com")
-    assert_equal "42d5e23b-3a02-5135-85c6-52d1102f1f00", SecureRandom.uuid_v5(SecureRandom::UUID_OID_NAMESPACE, "1.2.3")
-    assert_equal "fd5b2ddf-bcfe-58b6-90d6-db50f74db527", SecureRandom.uuid_v5(SecureRandom::UUID_X500_NAMESPACE, "cn=John Doe, ou=People, o=Acme, Inc., c=US")
-  end
-
-  def test_uuid_v4_alias
-    assert_equal SecureRandom.method(:uuid_v4), SecureRandom.method(:uuid)
-  end
-
-  def test_invalid_hash_class
-    assert_raise ArgumentError do
-      SecureRandom.uuid_from_hash(Digest::SHA2, SecureRandom::UUID_OID_NAMESPACE, '1.2.3')
-    end
-  end
-end