How do I get Rake TestTask to execute a Ruby script before testing?

Question

I have a testing "bootstrap" Ruby script that handles test setup (requires libraries, prepares test variables etc.) and I want the Rake TestTask to run this file before it runs the tests. Is this possible?

I know that Rake starts the test in a new Ruby instance, so doing setup in the Rakefile won't work. The docs say that I can pass options to the Ruby command using TestTask.ruby_opts, but I haven't been able to find a Ruby option that executes a script file before the main script. I did find:

-rlibrary       require the library before executing your script

But that doesn't let me reference my testing bootstrap script

What do you mean by "doesn't let me reference my testing bootstrap script"? There's an error? What? — toro2k, Jun 07 '13 at 12:54
@toro2k: My test bootstrap script is just a script outside my lib path, I can't load it using `require` — Hubro, Jun 07 '13 at 14:40
@ovhaag: if there was just one test file, sure. There could be hundreds. — Hubro, Jun 07 '13 at 14:42

toro2k · Accepted Answer · 2015-05-28T12:19:45.473

1

What you have to do is to include the directory where your script is to the $LOAD_PATH passing the -I options to the ruby command, for example if your script is some_directory/your_script.rb, you can execute it like this:

Rake::TestTask.new do |t|
  # ...
  t.ruby_opts = ['-I some_directory', '-r your_script']
end

edited May 28 '15 at 12:19

answered Jun 07 '13 at 14:43

toro2k

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How do I get Rake TestTask to execute a Ruby script before testing?

1 Answers1