Packages

t

org.scalatest

GivenWhenThen

trait GivenWhenThen extends AnyRef

Trait that contains methods named given, when, then, and and, which take a string message and implicit Informer, and forward the message to the informer.

Here's an example:

package org.scalatest.examples.flatspec.info

import collection.mutable
import org.scalatest._

class SetSpec extends FlatSpec with GivenWhenThen {

  "A mutable Set" should "allow an element to be added" in {
    Given("an empty mutable Set")
    val set = mutable.Set.empty[String]

    When("an element is added")
    set += "clarity"

    Then("the Set should have size 1")
    assert(set.size === 1)

    And("the Set should contain the added element")
    assert(set.contains("clarity"))

    info("That's all folks!")
  }
}

If you run this SetSpec from the interpreter, you will see the following output:

scala> org.scalatest.run(new SetSpec)
A mutable Set
- should allow an element to be added
  + Given an empty mutable Set
  + When an element is added
  + Then the Set should have size 1
  + And the Set should contain the added element
  + That's all folks!

Self Type
GivenWhenThen with Informing
Source
GivenWhenThen.scala
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  1. final def !=(arg0: Any): Boolean
    Definition Classes
    AnyRef → Any
  2. final def ##(): Int
    Definition Classes
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  3. final def ==(arg0: Any): Boolean
    Definition Classes
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  4. def And(message: String)(implicit pos: Position): Unit

    Forwards a message to an implicit Informer, preceded by "And ".

    Forwards a message to an implicit Informer, preceded by "And ".

    message

    the message to forward to the passed informer

  5. def Given(message: String)(implicit pos: Position): Unit

    Forwards a message to an implicit Informer, preceded by "Given."

    Forwards a message to an implicit Informer, preceded by "Given."

    message

    the message to forward to the passed informer

  6. def Then(message: String)(implicit pos: Position): Unit

    Forwards a message to an implicit Informer, preceded by "Then ".

    Forwards a message to an implicit Informer, preceded by "Then ".

    message

    the message to forward to the passed informer

  7. def When(message: String)(implicit pos: Position): Unit

    Forwards a message to an implicit Informer, preceded by "When ".

    Forwards a message to an implicit Informer, preceded by "When ".

    message

    the message to forward to the passed informer

  8. final def asInstanceOf[T0]: T0
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  10. final def eq(arg0: AnyRef): Boolean
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  11. def equals(arg0: Any): Boolean
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  12. def finalize(): Unit
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  16. final def ne(arg0: AnyRef): Boolean
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  19. final def synchronized[T0](arg0: ⇒ T0): T0
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  20. def toString(): String
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  21. final def wait(): Unit
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  22. final def wait(arg0: Long, arg1: Int): Unit
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  23. final def wait(arg0: Long): Unit
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