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object Outcome extends Serializable

Companion object for trait Outcome that contains an implicit method that enables collections of Outcomes to be flattened into a collections of contained exceptions.

Source
Outcome.scala
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    @throws(classOf[java.lang.CloneNotSupportedException]) @native()
  6. implicit def convertOutcomeToIterator(outcome: Outcome): Iterator[Throwable]

    Enables collections of Outcomes to be flattened into a collections of contained exceptions.

    Enables collections of Outcomes to be flattened into a collections of contained exceptions.

    Here's an example:

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

scala> import prop.TableDrivenPropertyChecks._
import prop.TableDrivenPropertyChecks._

scala> val squares = // (includes errors)
     |   Table(
     |     ("x", "square"),
     |     ( 0 ,     0   ),
     |     ( 1 ,     1   ),
     |     ( 2 ,     4   ),
     |     ( 3 ,     8   ),
     |     ( 4 ,    16   ),
     |     ( 5 ,    26   ),
     |     ( 6 ,    36   )
     |   )
squares: org.scalatest.prop.TableFor2[Int,Int] =
  TableFor2((x,square), (0,0), (1,1), (2,4), (3,8), (4,16), (5,26), (6,36))

    Given the above table, which includes some errors, you can obtain an IndexedSeq of the Outcomes of executing an assertion on each row of the table with outcomeOf, like this:

    scala> import OutcomeOf._
import OutcomeOf._

scala> import Matchers._
import Matchers._

scala> val outcomes = for ((x, square) <- squares) yield outcomeOf { square shouldEqual x * x }
outcomes: IndexedSeq[org.scalatest.Outcome] =
  Vector(Succeeded, Succeeded, Succeeded,
  Failed(org.scalatest.exceptions.TestFailedException: 8 did not equal 9), Succeeded,
  Failed(org.scalatest.exceptions.TestFailedException: 26 did not equal 25), Succeeded)

    Now you have a collection of all the outcomes, including successful ones. If you just want the Failed and Canceled outcomes, which contain exceptions, you can filter out anything that isn't "exceptional," like this:

    scala> outcomes.filter(_.isExceptional)
res1: IndexedSeq[org.scalatest.Outcome] =
  Vector(Failed(org.scalatest.exceptions.TestFailedException: 8 did not equal 9),
  Failed(org.scalatest.exceptions.TestFailedException: 26 did not equal 25))

    But if you just wanted the contained exceptions, you can (thanks to this implicit method) invoke flatten on your collection:

    scala> outcomes.flatten
res2: IndexedSeq[Throwable] =
  Vector(org.scalatest.exceptions.TestFailedException: 8 did not equal 9,
  org.scalatest.exceptions.TestFailedException: 26 did not equal 25)

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