brew/Library/Homebrew/test/test_checksum_verification.rb

require 'testing_env'
require 'test/testball'

class ChecksumTests < Test::Unit::TestCase
  def assert_checksum_good
    assert_nothing_raised { shutup { @_f.brew {} } }
  end

  def assert_checksum_bad
    assert_raises(ChecksumMismatchError) { shutup { @_f.brew {} } }
  end

  def formula(&block)
    @_f = TestBall.new
    @_f.stable.instance_eval(&block)
  end

  def test_good_sha1
    formula do
      sha1 '482e737739d946b7c8cbaf127d9ee9c148b999f5'
    end

    assert_checksum_good
  end

  def test_bad_sha1
    formula do
      sha1 '7ea8a98acb8f918df723c2ae73fe67d5664bfd7e'
    end

    assert_checksum_bad
  end

  def test_good_sha256
    formula do
      sha256 '1dfb13ce0f6143fe675b525fc9e168adb2215c5d5965c9f57306bb993170914f'
    end

    assert_checksum_good
  end

  def test_bad_sha256
    formula do
      sha256 'dcbf5f44743b74add648c7e35e414076632fa3b24463d68d1f6afc5be77024f8'
    end

    assert_checksum_bad
  end
end