1 files changed, 12 insertions, 1 deletions
diff --git a/activerecord/test/cases/adapters/postgresql/uuid_test.rb b/activerecord/test/cases/adapters/postgresql/uuid_test.rb
index f581c4cf39..9e03ea6bee 100644
--- a/activerecord/test/cases/adapters/postgresql/uuid_test.rb
+++ b/activerecord/test/cases/adapters/postgresql/uuid_test.rb
@@ -41,7 +41,18 @@ class PostgresqlUUIDTest < ActiveRecord::TestCase
   end
 
   def test_data_type_of_uuid_types
-    assert_equal :uuid, UUIDType.columns_hash["guid"].type
+    column = UUIDType.columns_hash["guid"]
+    assert_equal :uuid, column.type
+    assert_equal "uuid", column.sql_type
+    assert_not column.number?
+    assert_not column.text?
+    assert_not column.binary?
+    assert_not column.array
+  end
+
+  def test_treat_blank_uuid_as_nil
+    UUIDType.create! guid: ''
+    assert_equal(nil, UUIDType.last.guid)
   end
 
   def test_uuid_formats