How to run a single test from a rails test suite?

Question

How can I run a single test from a rails test suite?

rake test ANYTHING seems to not help.

Answer 1

Rails folder

  bundle install
  bundle exec ruby -I"activerecord/test" activerecord/test/cases/relation/where_test.rb 

Note you need to load appropriate folder: "activerecord/test" (where you have test)