org.scalactic

ConversionCheckedTripleEquals

object ConversionCheckedTripleEquals extends ConversionCheckedTripleEquals

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

$ scala -classpath scalactic.jar
Welcome to Scala version 2.10.0
Type in expressions to have them evaluated.
Type :help for more information.

scala> import org.scalactic._
import org.scalactic._

scala> import ConversionCheckedTripleEquals._
import ConversionCheckedTripleEquals._

scala> 1 === 1L
res0: Boolean = true

Source
ConversionCheckedTripleEquals.scala
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  1. ConversionCheckedTripleEquals
  2. ConversionCheckedTripleEquals
  3. LowPriorityConversionCheckedConstraint
  4. TripleEqualsSupport
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Type Members

  1. class CheckingEqualizer[L] extends AnyRef

    Class used via an implicit conversion to enable two objects to be compared with === and !== with a Boolean result and an enforced type constraint between two object types.

    Class used via an implicit conversion to enable two objects to be compared with === and !== with a Boolean result and an enforced type constraint between two object types. For example:

    assert(a === b)
    assert(c !== d)
    

    You can also check numeric values against another with a tolerance. Here are some examples:

    assert(a === (2.0 +- 0.1))
    assert(c !== (2.0 +- 0.1))
    

    Definition Classes
    TripleEqualsSupport
  2. class Equalizer[L] extends AnyRef

    Class used via an implicit conversion to enable any two objects to be compared with === and !== with a Boolean result and no enforced type constraint between two object types.

    Class used via an implicit conversion to enable any two objects to be compared with === and !== with a Boolean result and no enforced type constraint between two object types. For example:

    assert(a === b)
    assert(c !== d)
    

    You can also check numeric values against another with a tolerance. Here are some examples:

    assert(a === (2.0 +- 0.1))
    assert(c !== (2.0 +- 0.1))
    

    Definition Classes
    TripleEqualsSupport
  3. class LegacyCheckingEqualizer[L] extends AnyRef

    Class used via an implicit conversion to enable any two objects to be compared with === and !== with an Option[String] result and an enforced type constraint between two object types.

    Class used via an implicit conversion to enable any two objects to be compared with === and !== with an Option[String] result and an enforced type constraint between two object types. For example:

    assert(a === b)
    assert(c !== d)
    

    You can also check numeric values against another with a tolerance. Here are some examples:

    assert(a === (2.0 +- 0.1))
    assert(c !== (2.0 +- 0.1))
    

    The benefit of using assert(a === b) rather than assert(a == b) in ScalaTest code is that a TestFailedException produced by the former will include the values of a and b in its detail message.

    Note: This class has "Legacy" in its name because its approach to error messages will eventually be replaced by macros. Once ScalaTest no longer supports Scala 2.9, this class will be deprecated in favor of class Equalizer. Instead of obtaining nice error messages via the Option[String] returned by the methods of this class, the error messages will be obtained by a macro. The "legacy" approach to good error messages will continue to be used, however, until ScalaTest no longer supports Scala 2.9, since macros were introduced to Scala (in experimental form) in 2.10.

    The primary constructor takes one object, left, whose type is being converted to Equalizer. The left value may be a null reference, because this is allowed by Scala's == operator.

    Definition Classes
    TripleEqualsSupport
  4. class LegacyEqualizer[L] extends AnyRef

    Class used via an implicit conversion to enable any two objects to be compared with === and !== with an Option[String] result and no enforced type constraint between two object types.

    Class used via an implicit conversion to enable any two objects to be compared with === and !== with an Option[String] result and no enforced type constraint between two object types. For example:

    assert(a === b)
    assert(c !== d)
    

    You can also check numeric values against another with a tolerance. Here are some examples:

    assert(a === (2.0 +- 0.1))
    assert(c !== (2.0 +- 0.1))
    

    The benefit of using assert(a === b) rather than assert(a == b) in ScalaTest code is that a TestFailedException produced by the former will include the values of a and b in its detail message.

    Note: This class has "Legacy" in its name because its approach to error messages will eventually be replaced by macros. Once ScalaTest no longer supports Scala 2.9, this class will be deprecated in favor of class Equalizer. Instead of obtaining nice error messages via the Option[String] returned by the methods of this class, the error messages will be obtained by a macro. The "legacy" approach to good error messages will continue to be used, however, until ScalaTest no longer supports Scala 2.9, since macros were introduced to Scala (in experimental form) in 2.10.

    The primary constructor takes one object, left, whose type is being converted to Equalizer. The left value may be a null reference, because this is allowed by Scala's == operator.

    Definition Classes
    TripleEqualsSupport

Value Members

  1. final def !=(arg0: Any): Boolean

    Definition Classes
    AnyRef → Any
  2. def !==[T](right: Spread[T]): TripleEqualsInvocationOnSpread[T]

    Returns a TripleEqualsInvocationOnSpread[T], given an Spread[T], to facilitate the “<left> should !== (<pivot> +- <tolerance>)” syntax of Matchers.

    Returns a TripleEqualsInvocationOnSpread[T], given an Spread[T], to facilitate the “<left> should !== (<pivot> +- <tolerance>)” syntax of Matchers.

    right

    the Spread[T] against which to compare the left-hand value

    returns

    a TripleEqualsInvocationOnSpread wrapping the passed Spread[T] value, with expectingEqual set to false.

    Definition Classes
    TripleEqualsSupport
  3. def !==(right: Null): TripleEqualsInvocation[Null]

    Returns a TripleEqualsInvocation[Null], given a null reference, to facilitate the “<left> should !== null” syntax of Matchers.

    Returns a TripleEqualsInvocation[Null], given a null reference, to facilitate the “<left> should !== null” syntax of Matchers.

    right

    a null reference

    returns

    a TripleEqualsInvocation wrapping the passed null value, with expectingEqual set to false.

    Definition Classes
    TripleEqualsSupport
  4. def !==[T](right: T): TripleEqualsInvocation[T]

    Returns a TripleEqualsInvocation[T], given an object of type T, to facilitate the “<left> should !== <right>” syntax of Matchers.

    Returns a TripleEqualsInvocation[T], given an object of type T, to facilitate the “<left> should !== <right>” syntax of Matchers.

    right

    the right-hand side value for an equality assertion

    returns

    a TripleEqualsInvocation wrapping the passed right value, with expectingEqual set to false.

    Definition Classes
    TripleEqualsSupport
  5. final def ##(): Int

    Definition Classes
    AnyRef → Any
  6. final def ==(arg0: Any): Boolean

    Definition Classes
    AnyRef → Any
  7. def ===[T](right: Spread[T]): TripleEqualsInvocationOnSpread[T]

    Returns a TripleEqualsInvocationOnSpread[T], given an Spread[T], to facilitate the “<left> should === (<pivot> +- <tolerance>)” syntax of Matchers.

    Returns a TripleEqualsInvocationOnSpread[T], given an Spread[T], to facilitate the “<left> should === (<pivot> +- <tolerance>)” syntax of Matchers.

    right

    the Spread[T] against which to compare the left-hand value

    returns

    a TripleEqualsInvocationOnSpread wrapping the passed Spread[T] value, with expectingEqual set to true.

    Definition Classes
    TripleEqualsSupport
  8. def ===(right: Null): TripleEqualsInvocation[Null]

    Returns a TripleEqualsInvocation[Null], given a null reference, to facilitate the “<left> should === null” syntax of Matchers.

    Returns a TripleEqualsInvocation[Null], given a null reference, to facilitate the “<left> should === null” syntax of Matchers.

    right

    a null reference

    returns

    a TripleEqualsInvocation wrapping the passed null value, with expectingEqual set to true.

    Definition Classes
    TripleEqualsSupport
  9. def ===[T](right: T): TripleEqualsInvocation[T]

    Returns a TripleEqualsInvocation[T], given an object of type T, to facilitate the “<left> should === <right>” syntax of Matchers.

    Returns a TripleEqualsInvocation[T], given an object of type T, to facilitate the “<left> should === <right>” syntax of Matchers.

    right

    the right-hand side value for an equality assertion

    returns

    a TripleEqualsInvocation wrapping the passed right value, with expectingEqual set to true.

    Definition Classes
    TripleEqualsSupport
  10. final def asInstanceOf[T0]: T0

    Definition Classes
    Any
  11. def clone(): AnyRef

    Attributes
    protected[java.lang]
    Definition Classes
    AnyRef
    Annotations
    @throws( ... )
  12. implicit def conversionCheckedConstraint[A, B](implicit equivalenceOfA: Equivalence[A], cnv: (B) ⇒ A): Constraint[A, B]

    Provides a Constraint[A, B] class for any two types A and B, enforcing the type constraint that B is implicitly convertible to A, given an implicit Equivalence[A].

    Provides a Constraint[A, B] class for any two types A and B, enforcing the type constraint that B is implicitly convertible to A, given an implicit Equivalence[A].

    The returned Constraint's areEqual method uses the implicitly passed Equivalence[A]'s areEquivalent method to determine equality.

    This method is overridden and made implicit by subtraits ConversionCheckedTripleEquals) and ConversionCheckedLegacyTripleEquals, and overriden as non-implicit by the other subtraits in this package.

    equivalenceOfA

    an Equivalence[A] type class to which the Constraint.areEqual method will delegate to determine equality.

    cnv

    an implicit conversion from B to A

    returns

    a Constraint[A, B] whose areEqual method delegates to the areEquivalent method of the passed Equivalence[A].

    Definition Classes
    ConversionCheckedTripleEqualsTripleEqualsSupport
  13. def convertEquivalenceToAToBConstraint[A, B](equivalenceOfB: Equivalence[B])(implicit ev: <:<[A, B]): Constraint[A, B]

    Provides a Constraint[A, B] for any two types A and B, enforcing the type constraint that A must be a subtype of B, given an explicit Equivalence[B].

    Provides a Constraint[A, B] for any two types A and B, enforcing the type constraint that A must be a subtype of B, given an explicit Equivalence[B].

    This method is used to enable the Explicitly DSL for TypeCheckedTripleEquals by requiring an explicit Equivalance[B], but taking an implicit function that provides evidence that A is a subtype of B.

    The returned Constraint's areEqual method uses the implicitly passed Equivalence[B]'s areEquivalent method to determine equality.

    This method is overridden and made implicit by subtraits LowPriorityTypeCheckedConstraint (extended by TypeCheckedTripleEquals), and LowPriorityTypeCheckedLegacyConstraint (extended by TypeCheckedLegacyTripleEquals), and overriden as non-implicit by the other subtraits in this package.

    equivalenceOfB

    an Equivalence[B] type class to which the Constraint.areEqual method will delegate to determine equality.

    ev

    evidence that A is a subype of B

    returns

    a Constraint[A, B] whose areEqual method delegates to the areEquivalent method of the passed Equivalence[B].

    Definition Classes
    ConversionCheckedTripleEqualsTripleEqualsSupport
  14. implicit def convertEquivalenceToAToBConversionConstraint[A, B](equivalenceOfB: Equivalence[B])(implicit ev: (A) ⇒ B): Constraint[A, B]

    Provides a Constraint[A, B] class for any two types A and B, enforcing the type constraint that A is implicitly convertible to B, given an explicit Equivalence[B].

    Provides a Constraint[A, B] class for any two types A and B, enforcing the type constraint that A is implicitly convertible to B, given an explicit Equivalence[B].

    This method is used to enable the Explicitly DSL for ConversionCheckedTripleEquals by requiring an explicit Equivalance[B], but taking an implicit function that converts from A to B.

    The returned Constraint's areEqual method uses the implicitly passed Equivalence[B]'s areEquivalent method to determine equality.

    This method is overridden and made implicit by subtraits LowPriorityConversionCheckedConstraint (extended by ConversionCheckedTripleEquals), and LowPriorityConversionCheckedLegacyConstraint (extended by ConversionCheckedLegacyTripleEquals), and overriden as non-implicit by the other subtraits in this package.

    returns

    a Constraint[A, B] whose areEqual method delegates to the areEquivalent method of the passed Equivalence[B].

    Definition Classes
    LowPriorityConversionCheckedConstraintTripleEqualsSupport
  15. def convertEquivalenceToBToAConstraint[A, B](equivalenceOfA: Equivalence[A])(implicit ev: <:<[B, A]): Constraint[A, B]

    Provides a Constraint[A, B] for any two types A and B, enforcing the type constraint that B must be a subtype of A, given an explicit Equivalence[A].

    Provides a Constraint[A, B] for any two types A and B, enforcing the type constraint that B must be a subtype of A, given an explicit Equivalence[A].

    This method is used to enable the Explicitly DSL for TypeCheckedTripleEquals by requiring an explicit Equivalance[B], but taking an implicit function that provides evidence that A is a subtype of B. For example, under TypeCheckedTripleEquals, this method (as an implicit method), would be used to compile this statement:

    def closeEnoughTo1(num: Double): Boolean =
      (num === 1.0)(decided by forgivingEquality)
    

    The returned Constraint's areEqual method uses the implicitly passed Equivalence[A]'s areEquivalent method to determine equality.

    This method is overridden and made implicit by subtraits TypeCheckedTripleEquals) and TypeCheckedLegacyTripleEquals, and overriden as non-implicit by the other subtraits in this package.

    ev

    evidence that B is a subype of A

    returns

    a Constraint[A, B] whose areEqual method delegates to the areEquivalent method of the passed Equivalence[A].

    Definition Classes
    ConversionCheckedTripleEqualsTripleEqualsSupport
  16. implicit def convertEquivalenceToBToAConversionConstraint[A, B](equivalenceOfA: Equivalence[A])(implicit ev: (B) ⇒ A): Constraint[A, B]

    Provides a Constraint[A, B] class for any two types A and B, enforcing the type constraint that B is implicitly convertible to A, given an explicit Equivalence[A].

    Provides a Constraint[A, B] class for any two types A and B, enforcing the type constraint that B is implicitly convertible to A, given an explicit Equivalence[A].

    This method is used to enable the Explicitly DSL for ConversionCheckedTripleEquals by requiring an explicit Equivalance[A], but taking an implicit function that converts from B to A. For example, under ConversionCheckedTripleEquals, this method (as an implicit method), would be used to compile this statement:

    def closeEnoughTo1(num: Double): Boolean =
      (num === 1.0)(decided by forgivingEquality)
    

    The returned Constraint's areEqual method uses the implicitly passed Equivalence[A]'s areEquivalent method to determine equality.

    This method is overridden and made implicit by subtraits ConversionCheckedTripleEquals) and ConversionCheckedLegacyTripleEquals, and overriden as non-implicit by the other subtraits in this package.

    equivalenceOfA

    an Equivalence[A] type class to which the Constraint.areEqual method will delegate to determine equality.

    returns

    a Constraint[A, B] whose areEqual method delegates to the areEquivalent method of the passed Equivalence[A].

    Definition Classes
    ConversionCheckedTripleEqualsTripleEqualsSupport
  17. implicit def convertToCheckingEqualizer[T](left: T): CheckingEqualizer[T]

    Converts to an CheckingEqualizer that provides === and !== operators that result in Boolean and enforce a type constraint.

    Converts to an CheckingEqualizer that provides === and !== operators that result in Boolean and enforce a type constraint.

    This method is overridden and made implicit by subtraits TypeCheckedTripleEquals and ConversionCheckedTripleEquals, and overriden as non-implicit by the other subtraits in this package.

    left

    the object whose type to convert to CheckingEqualizer.

    Definition Classes
    ConversionCheckedTripleEqualsTripleEqualsSupport
    Exceptions thrown
    NullPointerException

    if left is null.

  18. def convertToEqualizer[T](left: T): Equalizer[T]

    Converts to an Equalizer that provides === and !== operators that result in Boolean and enforce no type constraint.

    Converts to an Equalizer that provides === and !== operators that result in Boolean and enforce no type constraint.

    This method is overridden and made implicit by subtrait TripleEquals and overriden as non-implicit by the other subtraits in this package.

    left

    the object whose type to convert to Equalizer.

    Definition Classes
    ConversionCheckedTripleEqualsTripleEqualsSupport
    Exceptions thrown
    NullPointerException

    if left is null.

  19. def convertToLegacyCheckingEqualizer[T](left: T): LegacyCheckingEqualizer[T]

    Converts to a LegacyCheckingEqualizer that provides === and !== operators that result in Option[String] and enforce a type constraint.

    Converts to a LegacyCheckingEqualizer that provides === and !== operators that result in Option[String] and enforce a type constraint.

    This method is overridden and made implicit by subtraits TypeCheckedLegacyTripleEquals and ConversionCheckedLegacyTripleEquals, and overriden as non-implicit by the other subtraits in this package.

    left

    the object whose type to convert to LegacyCheckingEqualizer.

    Definition Classes
    ConversionCheckedTripleEqualsTripleEqualsSupport
    Exceptions thrown
    NullPointerException

    if left is null.

  20. def convertToLegacyEqualizer[T](left: T): LegacyEqualizer[T]

    Converts to a LegacyEqualizer that provides === and !== operators that result in Option[String] and enforce no type constraint.

    Converts to a LegacyEqualizer that provides === and !== operators that result in Option[String] and enforce no type constraint.

    This method is overridden and made implicit by subtrait LegacyTripleEquals and overriden as non-implicit by the other subtraits in this package.

    left

    the object whose type to convert to LegacyEqualizer.

    Definition Classes
    ConversionCheckedTripleEqualsTripleEqualsSupport
    Exceptions thrown
    NullPointerException

    if left is null.

  21. def defaultEquality[A]: Equality[A]

    Returns an Equality[A] for any type A that determines equality by first calling .deep on any Array (on either the left or right side), then comparing the resulting objects with ==.

    Returns an Equality[A] for any type A that determines equality by first calling .deep on any Array (on either the left or right side), then comparing the resulting objects with ==.

    returns

    a default Equality for type A

    Definition Classes
    TripleEqualsSupport
  22. final def eq(arg0: AnyRef): Boolean

    Definition Classes
    AnyRef
  23. def equals(arg0: Any): Boolean

    Definition Classes
    AnyRef → Any
  24. def finalize(): Unit

    Attributes
    protected[java.lang]
    Definition Classes
    AnyRef
    Annotations
    @throws( classOf[java.lang.Throwable] )
  25. final def getClass(): Class[_]

    Definition Classes
    AnyRef → Any
  26. def hashCode(): Int

    Definition Classes
    AnyRef → Any
  27. final def isInstanceOf[T0]: Boolean

    Definition Classes
    Any
  28. implicit def lowPriorityConversionCheckedConstraint[A, B](implicit equivalenceOfB: Equivalence[B], cnv: (A) ⇒ B): Constraint[A, B]

    Provides a Constraint[A, B] class for any two types A and B, enforcing the type constraint that A is implicitly convertible to B, given an implicit Equivalence[B].

    Provides a Constraint[A, B] class for any two types A and B, enforcing the type constraint that A is implicitly convertible to B, given an implicit Equivalence[B].

    The returned Constraint's areEqual method uses the implicitly passed Equivalence[B]'s areEquivalent method to determine equality.

    This method is overridden and made implicit by subtraits LowPriorityConversionCheckedConstraint (extended by ConversionCheckedTripleEquals), and LowPriorityConversionCheckedLegacyConstraint (extended by ConversionCheckedLegacyTripleEquals), and overriden as non-implicit by the other subtraits in this package.

    cnv

    an implicit conversion from A to B

    returns

    a Constraint[A, B] whose areEqual method delegates to the areEquivalent method of the passed Equivalence[B].

    Definition Classes
    LowPriorityConversionCheckedConstraintTripleEqualsSupport
  29. def lowPriorityTypeCheckedConstraint[A, B](implicit equivalenceOfB: Equivalence[B], ev: <:<[A, B]): Constraint[A, B]

    Provides a Constraint[A, B] for any two types A and B, enforcing the type constraint that A must be a subtype of B, given an implicit Equivalence[B].

    Provides a Constraint[A, B] for any two types A and B, enforcing the type constraint that A must be a subtype of B, given an implicit Equivalence[B].

    The returned Constraint's areEqual method uses the implicitly passed Equivalence[A]'s areEquivalent method to determine equality.

    This method is overridden and made implicit by subtraits LowPriorityTypeCheckedConstraint (extended by TypeCheckedTripleEquals), and LowPriorityTypeCheckedLegacyConstraint (extended by TypeCheckedLegacyTripleEquals), and overriden as non-implicit by the other subtraits in this package.

    equivalenceOfB

    an Equivalence[B] type class to which the Constraint.areEqual method will delegate to determine equality.

    ev

    evidence that A is a subype of B

    returns

    a Constraint[A, B] whose areEqual method delegates to the areEquivalent method of the passed Equivalence[B].

    Definition Classes
    ConversionCheckedTripleEqualsTripleEqualsSupport
  30. final def ne(arg0: AnyRef): Boolean

    Definition Classes
    AnyRef
  31. final def notify(): Unit

    Definition Classes
    AnyRef
  32. final def notifyAll(): Unit

    Definition Classes
    AnyRef
  33. final def synchronized[T0](arg0: ⇒ T0): T0

    Definition Classes
    AnyRef
  34. def toString(): String

    Definition Classes
    AnyRef → Any
  35. def typeCheckedConstraint[A, B](implicit equivalenceOfA: Equivalence[A], ev: <:<[B, A]): Constraint[A, B]

    Provides a Constraint[A, B] for any two types A and B, enforcing the type constraint that B must be a subtype of A, given an implicit Equivalence[A].

    Provides a Constraint[A, B] for any two types A and B, enforcing the type constraint that B must be a subtype of A, given an implicit Equivalence[A].

    The returned Constraint's areEqual method uses the implicitly passed Equivalence[A]'s areEquivalent method to determine equality.

    This method is overridden and made implicit by subtraits TypeCheckedTripleEquals) and TypeCheckedLegacyTripleEquals, and overriden as non-implicit by the other subtraits in this package.

    ev

    evidence that B is a subype of A

    returns

    a Constraint[A, B] whose areEqual method delegates to the areEquivalent method of the passed Equivalence[A].

    Definition Classes
    ConversionCheckedTripleEqualsTripleEqualsSupport
  36. def unconstrainedEquality[A, B](implicit equalityOfA: Equality[A]): Constraint[A, B]

    Provides a Constraint[A, B] class for any two types A and B, with no type constraint enforced, given an implicit Equality[A].

    Provides a Constraint[A, B] class for any two types A and B, with no type constraint enforced, given an implicit Equality[A].

    The returned Constraint's areEqual method uses the implicitly passed Equality[A]'s areEqual method to determine equality.

    This method is overridden and made implicit by subtraits TripleEquals and LegacyTripleEquals, and overriden as non-implicit by the other subtraits in this package.

    equalityOfA

    an Equality[A] type class to which the Constraint.areEqual method will delegate to determine equality.

    returns

    a Constraint[A, B] whose areEqual method delegates to the areEqual method of the passed Equality[A].

    Definition Classes
    ConversionCheckedTripleEqualsTripleEqualsSupport
  37. final def wait(): Unit

    Definition Classes
    AnyRef
    Annotations
    @throws( ... )
  38. final def wait(arg0: Long, arg1: Int): Unit

    Definition Classes
    AnyRef
    Annotations
    @throws( ... )
  39. final def wait(arg0: Long): Unit

    Definition Classes
    AnyRef
    Annotations
    @throws( ... )

Inherited from TripleEqualsSupport

Inherited from AnyRef

Inherited from Any

Ungrouped