brew/Library/Homebrew/test/test_cmd_cleanup.rb

require 'testing_env'
require 'testball'
require 'cmd/cleanup'

class CleanupTests < Homebrew::TestCase
  def test_cleanup
    f1 = Class.new(Testball) { version "0.1" }.new
    f2 = Class.new(Testball) { version "0.2" }.new
    f3 = Class.new(Testball) { version "0.3" }.new

    shutup do
      f1.brew { f1.install }
      f2.brew { f2.install }
      f3.brew { f3.install }
    end

    assert_predicate f1, :installed?
    assert_predicate f2, :installed?
    assert_predicate f3, :installed?

    shutup { Homebrew.cleanup_formula(f3) }

    refute_predicate f1, :installed?
    refute_predicate f2, :installed?
    assert_predicate f3, :installed?
  ensure
    [f1, f2, f3].each(&:clear_cache)
    f3.rack.rmtree
  end
end