Rails tests can't find test_helper

I'm trying to run individual tests through ruby test/unit/mytest.rb, but I alw开发者_如何学Pythonays get a "no such file to load - test_helper" error. Google brought up a few suggestions, but none of them worked for me. I'm running Rails 3.0, Ruby 1.9.2 (through RVM) on Ubuntu 10.10

Here's what I've tried so far - any suggestions really appreciated

• Changed the "require test_helper" to "require File.dirname(FILE) + "/../test_helper" " in test/unit/mytest_test.rb. It brings back " no such file to load -- test/unit/../test_helper"
• Tried running rvm test/unit/mytest_test.rb Same as above
• Tried running ruby -I test/unit/mytest_test.rb. No messages to the terminal. After about 5 minutes waiting for something to happen, ctrl+c'd out of it

Any suggestions very appreciated - I'm stumped.

ruby 1.9.2 removed ".", the current directory, from the load path. I have to do this to get it to work:

require 'test_helper'

and call it like:

ruby -I. unit/person_test.rb 

I was fighting this thing myself today and i dislike the big require with whole path to file and stuff...

In my case it was fault of Rakefile..

so now it looks like this:

require "bundler/gem_tasks"
require "rake/testtask"

Rake::TestTask.new do |t|
  t.libs << "lib"
  t.libs << "test" # here is the test_helper
  t.pattern = "test/**/*_test.rb"
end

task default: :test

I know its old and has answer marked accepted, but maybe this will also help someone :) have a nice day

I've added the following to the top of my test files.

require File.expand_path("../../test_helper", __FILE__)

This restores the previous behavior and allows the call to be simply:

ruby test/unit/person_test.rb

Maybe you should run your test cases in this way:

$ rake test

There is no need to change the "require" statement from generated code if you use rake.

Tested with Ruby 1.9.3 and Rails 3.2.8

If you are creating a gem or engine, running rake test in the test dummy application directory will cause this error. Running rake test in the root of the gem will avoid this.

Rails 1.9 no longer includes the current directory in the LOAD_PATH, which causes this problem. You have a few options.

1. call the test with the -I option from the app dir:

   ruby -I test test/functional/test_foo.rb

and use a require with no path:

require "test_helper.rb"

1. use a full path in the require.  Either

   require 'pathname'

   require Pathname.new(FILE).realpath.dirname.join('/../test_helper.rb')

or

require (File.dirname(File.realdirpath(__FILE__)) + '/../test_helper.rb')