4 files changed, 20 insertions, 8 deletions
diff --git a/activerecord/test/cases/adapters/postgresql/uuid_test.rb b/activerecord/test/cases/adapters/postgresql/uuid_test.rb
index 3f5d981444..9157e5e1ac 100644
--- a/activerecord/test/cases/adapters/postgresql/uuid_test.rb
+++ b/activerecord/test/cases/adapters/postgresql/uuid_test.rb
@@ -11,13 +11,7 @@ class PostgresqlUUIDTest < ActiveRecord::TestCase
 
   def setup
     @connection = ActiveRecord::Base.connection
-
-    unless @connection.extension_enabled?('uuid-ossp')
-      @connection.enable_extension 'uuid-ossp'
-      @connection.commit_db_transaction
-    end
-
-    @connection.reconnect!
+    enable_uuid_ossp!(@connection)
 
     @connection.transaction do
       @connection.create_table('pg_uuids', id: :uuid, default: 'uuid_generate_v1()') do |t|
diff --git a/activerecord/test/cases/fixtures_test.rb b/activerecord/test/cases/fixtures_test.rb
index f3a4887a85..1bf977cf8f 100644
--- a/activerecord/test/cases/fixtures_test.rb
+++ b/activerecord/test/cases/fixtures_test.rb
@@ -673,6 +673,12 @@ end
 class FoxyFixturesTest < ActiveRecord::TestCase
   fixtures :parrots, :parrots_pirates, :pirates, :treasures, :mateys, :ships, :computers, :developers, :"admin/accounts", :"admin/users"
 
+  if ActiveRecord::Base.connection.adapter_name == 'PostgreSQL'
+    require 'models/uuid_parent'
+    require 'models/uuid_child'
+    fixtures :uuid_parents, :uuid_children 
+  end
+
   def test_identifies_strings
     assert_equal(ActiveRecord::FixtureSet.identify("foo"), ActiveRecord::FixtureSet.identify("foo"))
     assert_not_equal(ActiveRecord::FixtureSet.identify("foo"), ActiveRecord::FixtureSet.identify("FOO"))
@@ -685,6 +691,9 @@ class FoxyFixturesTest < ActiveRecord::TestCase
   def test_identifies_consistently
     assert_equal 207281424, ActiveRecord::FixtureSet.identify(:ruby)
     assert_equal 1066363776, ActiveRecord::FixtureSet.identify(:sapphire_2)
+
+    assert_equal 'f92b6bda-0d0d-5fe1-9124-502b18badded', ActiveRecord::FixtureSet.identify(:daddy, :uuid)
+    assert_equal 'b4b10018-ad47-595d-b42f-d8bdaa6d01bf', ActiveRecord::FixtureSet.identify(:sonny, :uuid)
   end
 
   TIMESTAMP_COLUMNS = %w(created_at created_on updated_at updated_on)
diff --git a/activerecord/test/cases/helper.rb b/activerecord/test/cases/helper.rb
index 3758224b0c..7a7ed9740b 100644
--- a/activerecord/test/cases/helper.rb
+++ b/activerecord/test/cases/helper.rb
@@ -106,6 +106,15 @@ def verify_default_timezone_config
   end
 end
 
+def enable_uuid_ossp!(connection)
+  return false unless connection.supports_extensions?
+  return true if connection.extension_enabled?('uuid-ossp')
+
+  connection.enable_extension 'uuid-ossp'
+  connection.commit_db_transaction
+  connection.reconnect!
+end
+
 unless ENV['FIXTURE_DEBUG']
   module ActiveRecord::TestFixtures::ClassMethods
     def try_to_load_dependency_with_silence(*args)
diff --git a/activerecord/test/cases/schema_dumper_test.rb b/activerecord/test/cases/schema_dumper_test.rb
index 741827446d..0adc18ced1 100644
--- a/activerecord/test/cases/schema_dumper_test.rb
+++ b/activerecord/test/cases/schema_dumper_test.rb
@@ -63,7 +63,7 @@ class SchemaDumperTest < ActiveRecord::TestCase
       next if column_set.empty?
 
       lengths = column_set.map do |column|
-        if match = column.match(/t\.(?:integer|decimal|float|datetime|timestamp|time|date|text|binary|string|boolean)\s+"/)
+        if match = column.match(/t\.(?:integer|decimal|float|datetime|timestamp|time|date|text|binary|string|boolean|uuid)\s+"/)
           match[0].length
         end
       end