OptionValues

Companion object that facilitates the importing of OptionValues members as an alternative to mixing it in. One use case is to import OptionValues's members so you can use value on option in the Scala interpreter:

$ scala -cp scalatest-1.7.jar
Welcome to Scala version 2.9.1.final (Java HotSpot(TM) 64-Bit Server VM, Java 1.6.0_29).
Type in expressions to have them evaluated.
Type :help for more information.

scala> import org.scalatest._
import org.scalatest._

scala> import matchers.Matchers._
import matchers.Matchers._

scala> import OptionValues._
import OptionValues._

scala> val opt1: Option[Int] = Some(1)
opt1: Option[Int] = Some(1)

scala> val opt2: Option[Int] = None
opt2: Option[Int] = None

scala> opt1.value should be < 10

scala> opt2.value should be < 10
org.scalatest.TestFailedException: The Option on which value was invoked was not defined.
 at org.scalatest.OptionValues$Valuable.value(OptionValues.scala:68)
 at .<init>(<console>:18)
 ...