ruby with tests

abc.rb

# ruby abc.rb

require 'minitest'
require 'minitest/autorun'

class Abc

  def a
    return 'aaa'
  end

end

class TestAbc < Minitest::Spec

  def test_a
    abc = Abc.new
    assert_equal 'aaa', abc.a
  end

  def test_b
    assert true
  end

  def test_c
    assert false
  end

end