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// See LICENSE for license details
package firrtlTests.options
import firrtl.AnnotationSeq
import firrtl.annotations.{Annotation, NoTargetAnnotation}
import firrtl.options.{DoNotTerminateOnExit, DuplicateHandling, ExceptOnError, OptionsException}
import scopt.OptionParser
import org.scalatest.{FlatSpec, Matchers}
class OptionParserSpec extends FlatSpec with Matchers with firrtlTests.Utils {
case class IntAnnotation(x: Int) extends NoTargetAnnotation {
def extract: Int = x
}
/* An option parser that prepends to a Seq[Int] */
class IntParser extends OptionParser[AnnotationSeq]("Int Parser") {
opt[Int]("integer").abbr("n").unbounded.action( (x, c) => IntAnnotation(x) +: c )
help("help")
}
trait DuplicateShortOption { this: OptionParser[AnnotationSeq] =>
opt[Int]("not-an-integer").abbr("n").unbounded.action( (x, c) => IntAnnotation(x) +: c )
}
trait DuplicateLongOption { this: OptionParser[AnnotationSeq] =>
opt[Int]("integer").abbr("m").unbounded.action( (x, c) => IntAnnotation(x) +: c )
}
trait WithIntParser { val parser = new IntParser }
behavior of "A default OptionsParser"
it should "call sys.exit if terminate is called" in new WithIntParser {
info("exit status of 1 for failure")
catchStatus { parser.terminate(Left("some message")) } should be (Left(1))
info("exit status of 0 for success")
catchStatus { parser.terminate(Right(Unit)) } should be (Left(0))
}
it should "print to stderr on an invalid option" in new WithIntParser {
grabStdOutErr{ parser.parse(Array("--foo"), Seq[Annotation]()) }._2 should include ("Unknown option --foo")
}
behavior of "An OptionParser with DoNotTerminateOnExit mixed in"
it should "disable sys.exit for terminate method" in {
val parser = new IntParser with DoNotTerminateOnExit
info("no exit for failure")
catchStatus { parser.terminate(Left("some message")) } should be (Right(()))
info("no exit for success")
catchStatus { parser.terminate(Right(Unit)) } should be (Right(()))
}
behavior of "An OptionParser with DuplicateHandling mixed in"
it should "detect short duplicates" in {
val parser = new IntParser with DuplicateHandling with DuplicateShortOption
intercept[OptionsException] { parser.parse(Array[String](), Seq[Annotation]()) }
.getMessage should startWith ("Duplicate short option")
}
it should "detect long duplicates" in {
val parser = new IntParser with DuplicateHandling with DuplicateLongOption
intercept[OptionsException] { parser.parse(Array[String](), Seq[Annotation]()) }
.getMessage should startWith ("Duplicate long option")
}
behavior of "An OptionParser with ExceptOnError mixed in"
it should "cause an OptionsException on an invalid option" in {
val parser = new IntParser with ExceptOnError
intercept[OptionsException] { parser.parse(Array("--foo"), Seq[Annotation]()) }
.getMessage should include ("Unknown option")
}
}
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