parsing the scalatest timing output from sbt

test-time-parse.scala

case class TestTime(suite: String, test: String, time: Int)

def parse(input: Iterator[String]): Seq[TestTime] = {
  val TimingPattern = """(.*)\(((\d+) seconds?, )?(.*) milliseconds?\)""".r
  val x = input.filter{line => line.startsWith("[info]") && !line.contains("!!! IGNORED !!!") && !line.startsWith("[info]   +")}.map{_.substring("[info] ".length)}
  var suiteName: String = null
  var result = IndexedSeq[TestTime]()
  while(x.hasNext) {
    val line = x.next
    if(line.endsWith(":"))
      suiteName = line
    else if (line.startsWith("- ")) {
      val TimingPattern(test, _, seconds, millis) = line
      val time = Option(seconds).map{_.toInt * 1000}.getOrElse(0) + millis.toInt
      result :+= TestTime(suiteName, test, time)
    } else {
      throw new RuntimeException(line)
    }
  }
  result
}


val in = scala.io.Source.fromFile("sbt_output.txt")
val times = parse(in.getLines)


val out = new java.io.PrintWriter("test_times_table.tsv")
times.foreach{t => out.println(t.suite + "\t" + t.test + "\t" + t.time)}
out.close()