diff --git a/activerecord/test/cases/adapter_test.rb b/activerecord/test/cases/adapter_test.rb
index 0af7cbf74f..bd114995f7 100644
--- a/activerecord/test/cases/adapter_test.rb
+++ b/activerecord/test/cases/adapter_test.rb
@@ -114,7 +114,7 @@ module ActiveRecord
       end
     end
 
-    # test resetting sequences in odd tables in postgreSQL
+    # test resetting sequences in odd tables in PostgreSQL
     if ActiveRecord::Base.connection.respond_to?(:reset_pk_sequence!)
       require 'models/movie'
       require 'models/subscriber'
@@ -167,7 +167,7 @@ module ActiveRecord
           else
             @connection.execute "INSERT INTO fk_test_has_fk (fk_id) VALUES (0)"
           end
-          # should deleted created record as otherwise disable_referential_integrity will try to enable contraints after executed block
+          # should deleted created record as otherwise disable_referential_integrity will try to enable constraints after executed block
           # and will fail (at least on Oracle)
           @connection.execute "DELETE FROM fk_test_has_fk"
         end