require 'minitest/autorun'
require_relative 'main'

class EffectTest < Minitest::Test
  def test_reverse
    effect = Effects.reverse
    assert_equal 'ybuR si !nuf', effect.call('Ruby is fun!')
  end

  def test_echo
    effect = Effects.echo(2)
    assert_equal 'RRuubbyy iiss ffuunn!!', effect.call('Ruby is fun!')

    effect = Effects.echo(3)
    assert_equal 'RRRuuubbbyyy iiisss fffuuunnn!!!', effect.call('Ruby is fun!')
  end

  def test_loud
    effect = Effects.loud(2)
    assert_equal 'RUBY!! IS!! FUN!!!', effect.call('Ruby is fun!')

    effect = Effects.loud(3)
    assert_equal 'RUBY!!! IS!!! FUN!!!!', effect.call('Ruby is fun!')
  end
end

class WordSynthTest < Minitest::Test
  def test_play_without_effects
    synth = WordSynth.new
    assert_equal 'Ruby is fun!', synth.play('Ruby is fun!')
  end

  def test_play_with_reverse
    synth = WordSynth.new
    synth.add_effect(Effects.reverse)
    assert_equal 'ybuR si !nuf', synth.play('Ruby is fun!')
  end

  def test_play_with_many_effects
    synth = WordSynth.new
    synth.add_effect(Effects.echo(2))
    synth.add_effect(Effects.loud(3))
    synth.add_effect(Effects.reverse)
    assert_equal '!!!YYBBUURR !!!SSII !!!!!NNUUFF', synth.play('Ruby is fun!')
  end
end