TestLens
Value members
Concrete methods
Always returns true as long the chain of preceding transformations has succeeded.
Always returns true as long the chain of preceding transformations has succeeded.
val option: Either[Int, Option[String]] = Right(Some("Cool"))
assertTrue(option.is(_.right.some.anything)) // returns true
assertTrue(option.is(_.left.anything)) // will fail because of `.left`.
Transforms a value with the given CustomAssertion
Transforms a value with the given CustomAssertion
Transforms an scala.Either to its scala.Left value E
, otherwise
fails if it is a scala.Right.
Transforms an scala.Either to its scala.Left value E
, otherwise
fails if it is a scala.Right.
Transforms an scala.Either to its scala.Right value A
,
otherwise fails if it is a scala.Left.
Transforms an scala.Either to its scala.Right value A
,
otherwise fails if it is a scala.Left.
Transforms an scala.Option to its Some
value A
, otherwise fails
if it is a None
.
Transforms an scala.Option to its Some
value A
, otherwise fails
if it is a None
.
Transforms a value of some type into the given Subtype
if possible,
otherwise fails.
Transforms a value of some type into the given Subtype
if possible,
otherwise fails.
sealed trait CustomError
case class Explosion(blastRadius: Int) extends CustomError
case class Melting(degrees: Double) extends CustomError
case class Fulminating(wow: Boolean) extends CustomError
val error: CustomError = Melting(100)
assertTrue(option.is(_.subtype[Melting]).degrees > 10) // succeeds
assertTrue(option.is(_.subtype[Explosion]).blastRadius == 12) // fails