perf.rb

require 'formula'

class Perf < Formula
  homepage 'http://osmot.cs.cornell.edu/kddcup/software.html'
  url 'http://osmot.cs.cornell.edu/kddcup/perf/perf.src.tar.gz'
  sha1 '7fc1c8c94d05bbee06bc4dd6e00f1108d6334551'
  version '5.11'

  def install
    system "rm perf"
    system "make"
    bin.install "perf"
  end

  test do
    (testpath/'test.data').write <<-EOS.undent
      1 0.80962
      0 0.48458
      1 0.65812
      0 0.16117
      0 0.47375
      0 0.26587
      1 0.71517
      1 0.63866
      0 0.36296
      1 0.89639
      0 0.35936
      0 0.22413
      0 0.36402
      1 0.41459
      1 0.83148
      0 0.23271
    EOS

    output = `#{bin}/perf -ACC < test.data`

    output == "ACC    0.93750   pred_thresh  0.500000\n"
  end
end