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// See LICENSE for license details
package firrtlTests.options
import firrtl.{AnnotationSeq, FIRRTLException}
import firrtl.annotations.{Annotation, NoTargetAnnotation}
import firrtl.options.{DoNotTerminateOnExit, DuplicateHandling, OptionsException}
import scopt.OptionParser
import org.scalatest.{FlatSpec, Matchers}
import java.security.Permission
class OptionParserSpec extends FlatSpec with Matchers {
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 )
}
case class ExitException(status: Option[Int]) extends SecurityException("Found a sys.exit")
/* Security manager that disallows calls to sys.exit */
class ExceptOnExit extends SecurityManager {
override def checkPermission(perm: Permission): Unit = {}
override def checkPermission(perm: Permission, context: Object): Unit = {}
override def checkExit(status: Int): Unit = {
super.checkExit(status)
throw ExitException(Some(status))
}
}
/* Tell a parser to terminate in an environment where sys.exit throws an exception */
def catchStatus(parser: OptionParser[_], exitState: Either[String, Unit]): Option[Int] = {
System.setSecurityManager(new ExceptOnExit())
val status = try {
parser.terminate(exitState)
throw new ExitException(None)
} catch {
case ExitException(s) => s
}
System.setSecurityManager(null)
status
}
behavior of "default OptionsParser"
it should "terminate on exit" in {
val parser = new IntParser
info("By default, exit statuses are reported")
catchStatus(parser, Left("some message")) should be (Some(1))
catchStatus(parser, Right(Unit)) should be (Some(0))
}
behavior of "DoNotTerminateOnExit"
it should "disable sys.exit for terminate method" in {
val parser = new IntParser with DoNotTerminateOnExit
catchStatus(parser, Left("some message")) should be (None)
catchStatus(parser, Right(Unit)) should be (None)
}
behavior of "DuplicateHandling"
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")
}
}
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