When installed as a gem and you're using Test::Unit, hydra makes it so you can't run an individual test file

[fhwang]

I installed hydra as a gem, and was able to run a full rake task. But then if I try to run one individual test, like so:

ruby test/unit/blog_post_test.rb

... it just seems to load the environment and then exit without running any tests.

There is a workaround, which is just to simply install it as a plugin instead of a gem. For some reason that works fine--maybe there's some load-order thing going on?

[ngauthier]

I can run individual tests fine, so it's probably a load issue on your end.

The only place you should load hydra is in your Rakefile. Did you happen to mistakenly include it in your test_helper?

Hydra disables Test::Unit's auto-run so it can manage the test suite, so if you require it in your test helper it disables the run-at-exit that T::U uses to run the file.

[fhwang]

I'm wondering if part of the issue is that I'm trying to package hydra with the Rails app. It probably wasn't clear earlier; when I said "I installed hydra as a gem", I meant by putting it in vendor/gems/ of my Rails app. Not sure if that's something other people are doing with hydra.

What I'm doing is: I have lib/tasks/hydra.rake, which defines the tasks. It also was necessary to do this:

$: << "vendor/plugins/hydra/lib"
require 'hydra'
require 'hydra/tasks'

This works fine for me so I'll go ahead and close this. Thanks for Hydra.

[dougalcorn]

similarly, if you put 'gem "hydra"' in your Gemfile it will get required into your environment. You'll need to specify :require => false

[ngauthier]

yup, with bundler you should make a gem group to only load when it's testing time. http://gembundler.com/groups.html