Rakefile

# Reference from https://github.com/soffes/sskeychain
class String
  def self.colorize(text, color_code)
    "\e[#{color_code}m#{text}\e[0m"
  end

  def red
    self.class.colorize(self, 31)
  end

  def green
    self.class.colorize(self, 32)
  end
end

def test_project(project, target, options, verbose = false)
  command = "xcodebuild -project \"#{project}\" -target \"#{target}\" #{options} 2>&1"
  IO.popen(command) do |io|
    out = 0
    while line = io.gets do
      if verbose
        puts line
      else
        if line =~ /Started running tests with ios-sim/i || line =~ /Started tests for architectures/i
          out = out + 1
        end

        if out > 0
          case line
          when /failed/i, /error/i
            puts line.red
          when /passed/i
            puts line.green
          else
            puts line
          end
        end

        if line =~ /Finished running tests with ios-sim/i || line =~ /Completed tests for architectures/i
          out = out - 1
        end
      end

      if line == "** BUILD SUCCEEDED **\n"
        return 0
      elsif line == "** BUILD FAILED **\n"
        return 1
      end
    end
  end
end

desc 'Run the tests'
task :test do
  verbose = ENV['VERBOSE']
  ios = test_project('US2FormValidationFramework/US2FormValidationFramework.xcodeproj', 'US2FormValidationFrameworkTests', '-configuration Debug -sdk iphonesimulator', verbose)

  puts "\n\n\n" if verbose
  puts "iOS: #{ios == 0 ? 'PASSED'.green : 'FAILED'.red}"
  if ios == 0
    exit(0)
  else
    exit(1)
  end
end

task :default => :test