Packages

object Configuration extends Configuration

Companion object that facilitates the importing of Configuration members as an alternative to mixing it in. One use case is to import Configuration members so you can use them in the Scala interpreter.

Source
Configuration.scala
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Type Members

  1. case class MaxDiscardedFactor(value: PosZDouble) extends PropertyCheckConfigParam with Product with Serializable

    A PropertyCheckConfigParam that specifies how many generated values may be discarded, as a multiple of the successful attempts, before the property check is considered to be org.scalatest.prop.PropertyCheckResult.Exhausted.

    A PropertyCheckConfigParam that specifies how many generated values may be discarded, as a multiple of the successful attempts, before the property check is considered to be org.scalatest.prop.PropertyCheckResult.Exhausted.

    In GeneratorDrivenPropertyChecks, a property evaluation is discarded if it throws DiscardedEvaluationException, which is produced by a whenever clause that evaluates to false. For example, consider this ScalaTest property check:

    // forAll defined in GeneratorDrivenPropertyChecks
    forAll { (n: Int) =>
      whenever (n > 0) {
        doubleIt(n) should equal (n * 2)
      }
    }
    

    In the above code, whenever a non-positive n is passed, the property function will complete abruptly with DiscardedEvaluationException.

    Similarly, in Checkers, a property evaluation is discarded if the expression to the left of ScalaCheck's ==> operator is false. Here's an example:

    // forAll defined in Checkers
    forAll { (n: Int) =>
      (n > 0) ==> doubleIt(n) == (n * 2)
    }
    

    For either kind of property check, MaxDiscardedFactor indicates the maximum fraction of total tests that may be discarded, relative to the number of successful tests. For example, if this is set to 4.0, and you are running 100 tests, it may discard up to 400 tries before considering the test to be org.scalatest.prop.PropertyCheckResult.Exhausted.

    value

    the permitted number of discarded tests, as a multiple of successful ones.

    Definition Classes
    Configuration
  2. case class MinSize(value: PosZInt) extends PropertyCheckConfigParam with Product with Serializable

    A PropertyCheckConfigParam that specifies the minimum size parameter to provide to ScalaCheck, which it will use when generating objects for which size matters (such as strings or lists).

    A PropertyCheckConfigParam that specifies the minimum size parameter to provide to ScalaCheck, which it will use when generating objects for which size matters (such as strings or lists).

    Definition Classes
    Configuration
  3. case class MinSuccessful(value: PosInt) extends PropertyCheckConfigParam with Product with Serializable

    A PropertyCheckConfigParam that specifies the minimum number of successful property evaluations required for the property to pass.

    A PropertyCheckConfigParam that specifies the minimum number of successful property evaluations required for the property to pass.

    Once this many evaluations have passed, the property will return PropertyCheckResult.Success.

    Definition Classes
    Configuration
  4. case class Parameter(minSuccessful: PosInt = PosInt.ensuringValid(10), maxDiscardedFactor: PosZDouble = PosZDouble.ensuringValid(5.0), minSize: PosZInt = PosZInt.ensuringValid(0), sizeRange: PosZInt = PosZInt.ensuringValid(100), workers: PosInt = PosInt.ensuringValid(1)) extends Product with Serializable

    The parameters that define how a property evaluation should be executed.

    The parameters that define how a property evaluation should be executed.

    You typically will not build this directly. Instead, you should define a PropertyCheckConfiguration and/or some PropertyCheckConfigParams, pass those in, and the system will resolve those to a coherent Parameter.

    minSuccessful

    the minimum number of successful property evaluations required for the property to pass (Note that the default is 10 instead of 100 as in ScalaCheck.); see MinSuccessful

    maxDiscardedFactor

    how many generated values may be discarded, as a multiple of the successful attempts, before the property check is considered to be org.scalatest.prop.PropertyCheckResult.Exhausted; see MaxDiscardedFactor

    minSize

    the minimum size parameter to provide to ScalaCheck, which it will use when generating objects for which size matters (such as strings or lists); see MinSize

    sizeRange

    the maximum size parameter to provide to ScalaCheck, which it will use when generating objects for which size matters (such as strings or lists); see SizeRange

    workers

    number of worker threads to use when evaluating a property; see Workers

  5. sealed abstract class PropertyCheckConfigParam extends Product with Serializable

    Abstract class defining a family of configuration parameters for property checks.

    Abstract class defining a family of configuration parameters for property checks.

    The subclasses of this abstract class are used to pass configuration information to the forAll methods of traits PropertyChecks (for ScalaTest-style property checks) and Checkers(for ScalaCheck-style property checks).

    Definition Classes
    Configuration
  6. case class PropertyCheckConfiguration(minSuccessful: PosInt = PosInt.ensuringValid(10), maxDiscardedFactor: PosZDouble = PosZDouble.ensuringValid(5.0), minSize: PosZInt = Configuration.minSize.get(), sizeRange: PosZInt = Configuration.sizeRange.get(), workers: PosInt = PosInt.ensuringValid(1)) extends Product with Serializable

    Describes the configuration to use when evaluating a property.

    Describes the configuration to use when evaluating a property.

    minSuccessful

    the minimum number of successful property evaluations required for the property to pass (Note that the default is 10 instead of 100 as in ScalaCheck.); see MinSuccessful

    maxDiscardedFactor

    how many generated values may be discarded, as a multiple of the successful attempts, before the property check is considered to be org.scalatest.prop.PropertyCheckResult.Exhausted; see MaxDiscardedFactor

    minSize

    the minimum size parameter to provide to ScalaCheck, which it will use when generating objects for which size matters (such as strings or lists); see MinSize

    sizeRange

    the maximum size parameter to provide to ScalaCheck, which it will use when generating objects for which size matters (such as strings or lists); see SizeRange

    workers

    number of worker threads to use when evaluating a property; see Workers

    Definition Classes
    Configuration
  7. case class SizeRange(value: PosZInt) extends PropertyCheckConfigParam with Product with Serializable

    A PropertyCheckConfigParam that (with minSize) specifies the maximum size parameter to provide to ScalaCheck, which it will use when generating objects for which size matters (such as strings or lists).

    A PropertyCheckConfigParam that (with minSize) specifies the maximum size parameter to provide to ScalaCheck, which it will use when generating objects for which size matters (such as strings or lists).

    Note that the size range is added to minSize in order to calculate the maximum size passed to ScalaCheck. Using a range allows compile-time checking of a non-negative number being specified.

    Definition Classes
    Configuration
  8. case class Workers(value: PosInt) extends PropertyCheckConfigParam with Product with Serializable

    A PropertyCheckConfigParam that specifies the number of worker threads to use when evaluating a property.

    A PropertyCheckConfigParam that specifies the number of worker threads to use when evaluating a property.

    Property evaluation runs on a single thread by default, but may run multiple threads if desired. If so, the evaluation will generally run faster. However, be careful not to use this if there is any risk of deadlocks, race conditions, or other hazards of multi-threaded code in evaluating this property or the code under test.

    Definition Classes
    Configuration

Value Members

  1. final def !=(arg0: Any): Boolean
    Definition Classes
    AnyRef → Any
  2. final def ##(): Int
    Definition Classes
    AnyRef → Any
  3. final def ==(arg0: Any): Boolean
    Definition Classes
    AnyRef → Any
  4. final def asInstanceOf[T0]: T0
    Definition Classes
    Any
  5. def clone(): AnyRef
    Attributes
    protected[lang]
    Definition Classes
    AnyRef
    Annotations
    @throws(classOf[java.lang.CloneNotSupportedException]) @native()
  6. final def eq(arg0: AnyRef): Boolean
    Definition Classes
    AnyRef
  7. def equals(arg0: AnyRef): Boolean
    Definition Classes
    AnyRef → Any
  8. def finalize(): Unit
    Attributes
    protected[lang]
    Definition Classes
    AnyRef
    Annotations
    @throws(classOf[java.lang.Throwable])
  9. implicit val generatorDrivenConfig: PropertyCheckConfiguration

    Implicit PropertyCheckConfig value providing default configuration values.

    Implicit PropertyCheckConfig value providing default configuration values.

    Definition Classes
    Configuration
  10. final def getClass(): Class[_ <: AnyRef]
    Definition Classes
    AnyRef → Any
    Annotations
    @native()
  11. def getParameter(configParams: Seq[PropertyCheckConfigParam], config: PropertyCheckConfiguration): Parameter

    Given some optional PropertyCheckConfigParams and a PropertyCheckConfiguration, compute the resulting Configuration.Parameter.

    Given some optional PropertyCheckConfigParams and a PropertyCheckConfiguration, compute the resulting Configuration.Parameter.

    This function deals with resolving the various forms of these configuration values, into a consistent form suitable for using in properties.

    Duplicate PropertyCheckConfigParam entries are not permitted in the configParams list.

    TODO: should this function be public? It feels like an internal implementation detail -- I think it should be private.

    configParams

    optionally, some parameters that differ from the provided c

    returns

    a fully-set-up Configuration.Parameter object, ready to evaluate properties with.

    Definition Classes
    Configuration
  12. def hashCode(): Int
    Definition Classes
    AnyRef → Any
    Annotations
    @native()
  13. final def isInstanceOf[T0]: Boolean
    Definition Classes
    Any
  14. def maxDiscardedFactor(value: PosZDouble): MaxDiscardedFactor

    Returns a MaxDiscardedFactor property check configuration parameter containing the passed value, which specifies the factor of discarded property evaluations allowed during property evaluation.

    Returns a MaxDiscardedFactor property check configuration parameter containing the passed value, which specifies the factor of discarded property evaluations allowed during property evaluation.

    Definition Classes
    Configuration
  15. def minSize(value: PosZInt): MinSize

    Returns a MinSize property check configuration parameter containing the passed value, which specifies the minimum size parameter to provide to ScalaCheck, which it will use when generating objects for which size matters (such as strings or lists).

    Returns a MinSize property check configuration parameter containing the passed value, which specifies the minimum size parameter to provide to ScalaCheck, which it will use when generating objects for which size matters (such as strings or lists).

    Definition Classes
    Configuration
  16. def minSuccessful(value: PosInt): MinSuccessful

    Returns a MinSuccessful property check configuration parameter containing the passed value, which specifies the minimum number of successful property evaluations required for the property to pass.

    Returns a MinSuccessful property check configuration parameter containing the passed value, which specifies the minimum number of successful property evaluations required for the property to pass.

    Definition Classes
    Configuration
  17. final def ne(arg0: AnyRef): Boolean
    Definition Classes
    AnyRef
  18. final def notify(): Unit
    Definition Classes
    AnyRef
    Annotations
    @native()
  19. final def notifyAll(): Unit
    Definition Classes
    AnyRef
    Annotations
    @native()
  20. def sizeRange(value: PosZInt): SizeRange

    Returns a SizeRange property check configuration parameter containing the passed value, that (with minSize) specifies the maximum size parameter to provide to ScalaCheck, which it will use when generating objects for which size matters (such as strings or lists).

    Returns a SizeRange property check configuration parameter containing the passed value, that (with minSize) specifies the maximum size parameter to provide to ScalaCheck, which it will use when generating objects for which size matters (such as strings or lists).

    Note that the size range is added to minSize in order to calculate the maximum size passed to ScalaCheck. Using a range allows compile-time checking of a non-negative number being specified.

    Definition Classes
    Configuration
  21. final def synchronized[T0](arg0: => T0): T0
    Definition Classes
    AnyRef
  22. def toString(): String
    Definition Classes
    AnyRef → Any
  23. final def wait(): Unit
    Definition Classes
    AnyRef
    Annotations
    @throws(classOf[java.lang.InterruptedException])
  24. final def wait(arg0: Long, arg1: Int): Unit
    Definition Classes
    AnyRef
    Annotations
    @throws(classOf[java.lang.InterruptedException])
  25. final def wait(arg0: Long): Unit
    Definition Classes
    AnyRef
    Annotations
    @throws(classOf[java.lang.InterruptedException]) @native()
  26. def workers(value: PosInt): Workers

    Returns a Workers property check configuration parameter containing the passed value, which specifies the number of worker threads to use when evaluating a property.

    Returns a Workers property check configuration parameter containing the passed value, which specifies the number of worker threads to use when evaluating a property.

    Definition Classes
    Configuration
  27. object PropertyCheckConfiguration extends Serializable

    Internal utility functions for configuration management.

    Internal utility functions for configuration management.

    Definition Classes
    Configuration

Inherited from Configuration

Inherited from AnyRef

Inherited from Any

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