Want to run all your tests at once in a rails app?

README.md

Append the contents of 'Rakefile' to your application's Rakefile.

Now when you run:

$ rake

You will see all tests, unit, functional and integration, run at one time, without reloading the environment between each set of tests. If you want to just run one set of tests, you can still do:

$ rake test:units
$ rake test:functionals

Rakefile

Rake.application.instance_variable_get('@tasks').delete('test')
Rake::TestTask.new do |t|
  t.libs << "test"
  t.test_files = FileList['test/**/*_test.rb']
end
task :test => "db:test:prepare"