running single rails unit/functional test

Question

As title.

ruby test/functionals/whatevertest.rb doesn't work, that requires me to replace all require 'test_helper' to require File.dirname(__FILE__) + '/../test_helper'. For some reason most of those test templates have such issue, so I rather to see if there is a hack I could get around it.

Answer 1

The following answer is based on: How to run single test from rails test suite? (stackoverflow)

But very briefly, here's the answer:

ruby -I test test/functional/whatevertest.rb

For a specific functional test, run:

ruby -I test test/functional/whatevertest.rb -n test_should_get_index

Just put underscores in places of spaces in test names (as above), or quote the title as follows:

ruby -I test test/functional/whatevertest.rb -n 'test should get index'

Note that for unit tests just replace functional with unit in the examples above. And if you're using bundler to manage your application's gem dependencies, you'll have to execute the tests with bundle exec as follows:

bundle exec ruby -I test test/unit/specific_model_test.rb
bundle exec ruby -I test test/unit/specific_model_test.rb -n test_divide_by_zero
bundle exec ruby -I test test/unit/specific_model_test.rb -n 'test divide by zero'

Most importantly, note that the argument to the -n switch is the name of the test, and the word "test" prepended to it, with spaces or underscores depending on whether you're quoting the name or not. The reason is that test is a convenience method. The following two methods are equivalent:

test "should get high" do
  assert true
end

def test_should_get_high
  assert true
end

...and can be executed as either of the following (they are equivalent):

bundle exec ruby -I test test/integration/misc_test.rb -n 'test should get high'
bundle exec ruby -I test test/integration/misc_test.rb -n test_should_get_high

Answer 2

Try this:

ruby -Ilib:test test/functionals/whatevertest.rb

Answer 3

On Linux? why not try (cd test && ruby functionals/whatevertest.rb). Note, the parentheses are important as otherwise your current directory will change to the subdirectory. What it does is fork another shell, change to the subdirectory in it, and run the test.

Answer 4

If you are on Rails 4, then rake supports file / directory arguments. Example:

rake test test/unit/user_test.rb
rake test test/unit

Answer 5

The answer for the title question would be:

ruby unit/post_test.rb -n selected_test # use to run only one selected test

but for the body of the question tvanfosson gave a good answer.

Answer 6

After spending endless hours on this, I finally found the solution (in Rails 3.0.7) :

ruby -I test test/functional/users_controller_test.rb -n "/the_test_name/"

Note, this only works with underbars (_) in the command. It does not work with spaces!

Define the test with spaces as:

test "the test name" do

This solution uses pattern matching, so you can use part of the test name. If the test is "should do foo", then either of the following will work as well.

ruby -I test test/functional/alerts_controller_test.rb -n "/foo/"
ruby -I test test/functional/alerts_controller_test.rb -n "/do_foo/"

The following (with spaces) will not work:

ruby -I test test/functional/alerts_controller_test.rb -n "/do foo/"

Answer 7

most conventional method for 2 and 3 is:

ruby -I test test/functional/your_test_file.rb