tests: switch to test-unit

test-unit has fewer incompatible changes over the years
than minitest; and minitest seems open to making future
incompatible changes... Nope.

I value API stability more and more as I (and this project)
ages.

1 files changed, 2 insertions, 5 deletions

diff --git a/test/test_eventfd.rb b/test/test_eventfd.rb
index a6b3016..1611dd8 100644
--- a/test/test_eventfd.rb
+++ b/test/test_eventfd.rb
@@ -1,10 +1,7 @@
-require './test/helper'
+require_relative 'helper'
 require 'fcntl'
-$-w = true
 
-require 'sleepy_penguin'
-
-class TestEventFD < Testcase
+class TestEventFD < Test::Unit::TestCase
   include SleepyPenguin
 
   def test_constants