Ruby Minitest #

require 'minitest/autorun'

class CalculatorTest < Minitest::Test
  def test_addition
    assert_equal 4, 2 + 2
  end

  def test_subtraction
    assert_equal 0, 2 - 2
  end
end

assert true
assert_equal expected, actual
assert_nil value
assert_includes collection, item
assert_instance_of Class, object
assert_raises(ErrorClass) { code }
refute false
refute_equal expected, actual

class UserTest < Minitest::Test
  def setup
    @user = User.new("Ruby")
  end

  def teardown
    @user = nil
  end

  def test_name
    assert_equal "Ruby", @user.name
  end
end

ruby test/user_test.rb
rake test