test_meme.rb

# foo_test.rb 

class Meme
    def i_can_has_cheezburger?
      "OHAI!"
    end

    def will_it_blend?
      "YES!"
    end
  end

# === Unit tests

  require 'minitest/autorun'

  class TestMeme < Minitest::Unit::TestCase
    def setup
      @meme = Meme.new
    end

    def test_that_kitty_can_eat
      assert_equal "OHAI!", @meme.i_can_has_cheezburger?
    end

    def test_that_it_will_not_blend
      refute_match /^no/i, @meme.will_it_blend?
    end

    def test_that_will_be_skipped
      skip "test this later"
    end
  end

__END__

$ ruby foo_test.rb 
MiniTest::Unit::TestCase is now Minitest::Test. From foo_test.rb:15:in `<main>'
Run options: --seed 7807

# Running:

..S

Finished in 0.001897s, 1581.6545 runs/s, 1581.6545 assertions/s.

3 runs, 3 assertions, 0 failures, 0 errors, 1 skips