scalatestCoreDotty/org.scalatest/OptionValues

OptionValues

object OptionValues extends 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)
 ...
Companion:
class
class Object
trait Matchable
class Any

Type members

Inherited classlikes

class OptionValuable[T](opt: Option[T], pos: Position)

Wrapper class that adds a value method to Option, allowing you to make statements like:

Wrapper class that adds a value method to Option, allowing you to make statements like:

opt.value should be > 9
Value parameters:
opt

An option to convert to OptionValuable, which provides the value method.

Inherited from:
OptionValues

Implicits

Inherited implicits

implicit def convertOptionToValuable[T](opt: Option[T])(implicit pos: Position): OptionValuable[T]

Implicit conversion that adds a value method to Option.

Implicit conversion that adds a value method to Option.

Value parameters:
opt

the Option on which to add the value method

Inherited from:
OptionValues