Include module in all MiniTest tests like in RSpec

Question

In RSpec I could create helper modules in /spec/support/...

module MyHelpers
  def help1
    puts \"hi\"
  end
end

and include it

Answer 1

From the Minitest README:

=== How to share code across test classes?

Use a module. That's exactly what they're for:

module UsefulStuff
  def useful_method
    # ...
  end
end

describe Blah do
  include UsefulStuff

  def test_whatever
    # useful_method available here
  end
end

Just define the module in a file and use require to pull it in. For example, if 'UsefulStuff' is defined in test/support/useful_stuff.rb, you might have require 'support/useful_stuff' in either your individual test file.

UPDATE:

To clarify, in your existing test/test_helper.rb file or in a new test/test_helper.rb file you create, include the following:

Dir[Rails.root.join("test/support/**/*.rb")].each { |f| require f }

which will require all files in the test/support subdirectory.

Then, in each of your individual test files just add

require 'test_helper'

This is exactly analogous to RSpec, where you have a require 'spec_helper' line at the top of each spec file.