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-rw-r--r--guides/source/contributing_to_ruby_on_rails.md15
1 files changed, 5 insertions, 10 deletions
diff --git a/guides/source/contributing_to_ruby_on_rails.md b/guides/source/contributing_to_ruby_on_rails.md
index da1f305e6c..2ab3280dc8 100644
--- a/guides/source/contributing_to_ruby_on_rails.md
+++ b/guides/source/contributing_to_ruby_on_rails.md
@@ -244,19 +244,14 @@ $ bundle exec rake test
##### Testing Active Record
-This is how you run the Active Record test suite only for SQLite3:
+This is how you run the Active Record test suite only for specific database:
```bash
$ cd activerecord
-$ bundle exec rake test_sqlite3
-```
-
-You can now run the tests as you did for `sqlite3`. The tasks are respectively
-
-```bash
-test_mysql
-test_mysql2
-test_postgresql
+$ bundle exec rake test_sqlite3 #sqlite
+$ bundle exec rake test_mysql #mysql using mysql gem
+$ bundle exec rake test_mysql2 #mysql using mysql2 gem
+$ bundle exec rake test_postgresql #postgres
```
Finally,