AssertionsForJUnit

Trait that contains ScalaTest's basic assertion methods, suitable for use with JUnit.

The assertion methods provided in this trait look and behave exactly like the ones in Assertions, except instead of throwing TestFailedException they throw JUnitTestFailedError, which extends junit.framework.AssertionFailedError.

JUnit 3 (release 3.8 and earlier) distinguishes between failures and errors. If a test fails because of a failed assertion, that is considered a failure. If a test fails for any other reason, either the test code or the application being tested threw an unexpected exception, that is considered an error. The way JUnit 3 decides whether an exception represents a failure or error is that only thrown junit.framework.AssertionFailedErrors are considered failures. Any other exception type is considered an error. The exception type thrown by the JUnit 3 assertion methods declared in junit.framework.Assert (such as assertEquals, assertTrue, and fail) is, therefore, AssertionFailedError.

In JUnit 4, AssertionFailedError was made to extend java.lang.AssertionError, and the distinction between failures and errors was essentially dropped. However, some tools that integrate with JUnit carry on this distinction, so even if you are using JUnit 4 you may want to use this AssertionsForJUnit trait instead of plain-old ScalaTest Assertions.

To use this trait in a JUnit 3 TestCase, you can mix it into your TestCase class, like this:

import junit.framework.TestCase
import org.scalatest.junit.AssertionsForJUnit

class MyTestCase extends TestCase with AssertionsForJUnit {

  def testSomething() {
    assert("hi".charAt(1) === 'i')
  }

  // ...
}

You can alternatively import the methods defined in this trait.

import junit.framework.TestCase
import org.scalatest.junit.AssertionsForJUnit._

class MyTestCase extends TestCase {

  def testSomething() {
    assert("hi".charAt(1) === 'i')
  }

  // ...
}

For details on the importing approach, see the documentation for the AssertionsForJUnit companion object. For the details on the AssertionsForJUnit syntax, see the Scaladoc documentation for org.scalatest.Assertions

Linear Supertypes

VersionSpecificAssertionsForJUnit, Assertions, TripleEquals, TripleEqualsSupport, AnyRef, Any

Known Subclasses

AssertionsForJUnit, JUnit3Suite, JUnitSuite, JUnitSuiteLike

Type Members

class CheckingEqualizer[L] extends AnyRef

Definition Classes
TripleEqualsSupport
class Equalizer[L] extends AnyRef

Definition Classes
TripleEqualsSupport

Value Members

final def !=(arg0: Any): Boolean

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

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

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

Definition Classes
TripleEqualsSupport
final def ##(): Int

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

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

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

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

Definition Classes
TripleEqualsSupport
final def asInstanceOf[T0]: T0

Definition Classes
Any
macro def assert(condition: Boolean, clue: Any)(implicit prettifier: Prettifier, pos: Position): Assertion

Definition Classes
VersionSpecificAssertionsForJUnit → Assertions
macro def assert(condition: Boolean)(implicit prettifier: Prettifier, pos: Position): Assertion

Definition Classes
VersionSpecificAssertionsForJUnit → Assertions
macro def assertCompiles(code: String)(implicit pos: Position): Assertion

Definition Classes
Assertions
macro def assertDoesNotCompile(code: String)(implicit pos: Position): Assertion

Definition Classes
Assertions
def assertResult(expected: Any)(actual: Any)(implicit prettifier: Prettifier, pos: Position): Assertion

Definition Classes
Assertions
def assertResult(expected: Any, clue: Any)(actual: Any)(implicit prettifier: Prettifier, pos: Position): Assertion

Definition Classes
Assertions
def assertThrows[T <: AnyRef](f: ⇒ Any)(implicit classTag: ClassTag[T], pos: Position): Assertion

Definition Classes
Assertions
macro def assertTypeError(code: String)(implicit pos: Position): Assertion

Definition Classes
Assertions
macro def assume(condition: Boolean, clue: Any)(implicit prettifier: Prettifier, pos: Position): Assertion

Definition Classes
VersionSpecificAssertionsForJUnit → Assertions
macro def assume(condition: Boolean)(implicit prettifier: Prettifier, pos: Position): Assertion

Definition Classes
VersionSpecificAssertionsForJUnit → Assertions
def cancel(cause: Throwable)(implicit pos: Position): Nothing

Definition Classes
Assertions
def cancel(message: String, cause: Throwable)(implicit pos: Position): Nothing

Definition Classes
Assertions
def cancel(message: String)(implicit pos: Position): Nothing

Definition Classes
Assertions
def cancel()(implicit pos: Position): Nothing

Definition Classes
Assertions
def clone(): AnyRef

Attributes
protected[java.lang]
Definition Classes
AnyRef
Annotations
@throws( ... )
def convertEquivalenceToAToBConstraint[A, B](equivalenceOfB: Equivalence[B])(implicit ev: <:<[A, B]): CanEqual[A, B]

Definition Classes
TripleEquals → TripleEqualsSupport
def convertEquivalenceToBToAConstraint[A, B](equivalenceOfA: Equivalence[A])(implicit ev: <:<[B, A]): CanEqual[A, B]

Definition Classes
TripleEquals → TripleEqualsSupport
def convertToCheckingEqualizer[T](left: T): CheckingEqualizer[T]

Definition Classes
TripleEquals → TripleEqualsSupport
implicit def convertToEqualizer[T](left: T): Equalizer[T]

Definition Classes
TripleEquals → TripleEqualsSupport
def defaultEquality[A]: Equality[A]

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

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

Definition Classes
AnyRef → Any
def fail(cause: Throwable)(implicit pos: Position): Nothing

Definition Classes
Assertions
def fail(message: String, cause: Throwable)(implicit pos: Position): Nothing

Definition Classes
Assertions
def fail(message: String)(implicit pos: Position): Nothing

Definition Classes
Assertions
def fail()(implicit pos: Position): Nothing

Definition Classes
Assertions
def finalize(): Unit

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

Definition Classes
AnyRef → Any
def hashCode(): Int

Definition Classes
AnyRef → Any
def intercept[T <: AnyRef](f: ⇒ Any)(implicit classTag: ClassTag[T], pos: Position): T

Definition Classes
Assertions
final def isInstanceOf[T0]: Boolean

Definition Classes
Any
def lowPriorityTypeCheckedConstraint[A, B](implicit equivalenceOfB: Equivalence[B], ev: <:<[A, B]): CanEqual[A, B]

Definition Classes
TripleEquals → TripleEqualsSupport
final def ne(arg0: AnyRef): Boolean

Definition Classes
AnyRef
final def notify(): Unit

Definition Classes
AnyRef
final def notifyAll(): Unit

Definition Classes
AnyRef
def pending: Assertion with PendingStatement

Definition Classes
Assertions
def pendingUntilFixed(f: ⇒ Unit)(implicit pos: Position): Assertion with PendingStatement

Definition Classes
Assertions
final val succeed: Assertion

Definition Classes
Assertions
final def synchronized[T0](arg0: ⇒ T0): T0

Definition Classes
AnyRef
def toExceptionFunction(message: Option[String]): (StackDepthException) ⇒ Option[String]

If message or message contents are null, throw a null exception, otherwise create a function that returns the option.
def toString(): String

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

Definition Classes
TripleEquals → TripleEqualsSupport
implicit def unconstrainedEquality[A, B](implicit equalityOfA: Equality[A]): CanEqual[A, B]

Definition Classes
TripleEquals → TripleEqualsSupport
final def wait(): Unit

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

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

Definition Classes
AnyRef
Annotations
@throws( ... )
def withClue[T](clue: Any)(fun: ⇒ T): T

Definition Classes
Assertions

Deprecated Value Members

def conversionCheckedConstraint[A, B](implicit equivalenceOfA: Equivalence[A], cnv: (B) ⇒ A): CanEqual[A, B]

Definition Classes
TripleEquals → TripleEqualsSupport
Annotations
@deprecated
Deprecated
(Since version 3.1.0) The conversionCheckedConstraint method has been deprecated and will be removed in a future version of ScalaTest. It is no longer needed now that the deprecation period of ConversionCheckedTripleEquals has expired. It will not be replaced.
def convertEquivalenceToAToBConversionConstraint[A, B](equivalenceOfB: Equivalence[B])(implicit ev: (A) ⇒ B): CanEqual[A, B]

Definition Classes
TripleEquals → TripleEqualsSupport
Annotations
@deprecated
Deprecated
(Since version 3.1.0) The convertEquivalenceToAToBConversionConstraint method has been deprecated and will be removed in a future version of ScalaTest. It is no longer needed now that the deprecation period of ConversionCheckedTripleEquals has expired. It will not be replaced.
def convertEquivalenceToBToAConversionConstraint[A, B](equivalenceOfA: Equivalence[A])(implicit ev: (B) ⇒ A): CanEqual[A, B]

Definition Classes
TripleEquals → TripleEqualsSupport
Annotations
@deprecated
Deprecated
(Since version 3.1.0) The convertEquivalenceToBToAConversionConstraint method has been deprecated and will be removed in a future version of ScalaTest. It is no longer needed now that the deprecation period of ConversionCheckedTripleEquals has expired. It will not be replaced.
def lowPriorityConversionCheckedConstraint[A, B](implicit equivalenceOfB: Equivalence[B], cnv: (A) ⇒ B): CanEqual[A, B]

Definition Classes
TripleEquals → TripleEqualsSupport
Annotations
@deprecated
Deprecated
(Since version 3.1.0) The lowPriorityConversionCheckedConstraint method has been deprecated and will be removed in a future version of ScalaTest. It is no longer needed now that the deprecation period of ConversionCheckedTripleEquals has expired. It will not be replaced.

Related Docs: object AssertionsForJUnit | package junit

trait AssertionsForJUnit extends VersionSpecificAssertionsForJUnit

Type Members

class CheckingEqualizer[L] extends AnyRef

class Equalizer[L] extends AnyRef

Value Members

final def !=(arg0: Any): Boolean

def !==[T](right: Spread[T]): TripleEqualsInvocationOnSpread[T]

def !==(right: Null): TripleEqualsInvocation[Null]

def !==[T](right: T): TripleEqualsInvocation[T]

final def ##(): Int

final def ==(arg0: Any): Boolean

def ===[T](right: Spread[T]): TripleEqualsInvocationOnSpread[T]

def ===(right: Null): TripleEqualsInvocation[Null]

def ===[T](right: T): TripleEqualsInvocation[T]

final def asInstanceOf[T0]: T0

macro def assert(condition: Boolean, clue: Any)(implicit prettifier: Prettifier, pos: Position): Assertion

macro def assert(condition: Boolean)(implicit prettifier: Prettifier, pos: Position): Assertion

macro def assertCompiles(code: String)(implicit pos: Position): Assertion

macro def assertDoesNotCompile(code: String)(implicit pos: Position): Assertion

def assertResult(expected: Any)(actual: Any)(implicit prettifier: Prettifier, pos: Position): Assertion

def assertResult(expected: Any, clue: Any)(actual: Any)(implicit prettifier: Prettifier, pos: Position): Assertion

def assertThrows[T <: AnyRef](f: ⇒ Any)(implicit classTag: ClassTag[T], pos: Position): Assertion

macro def assertTypeError(code: String)(implicit pos: Position): Assertion

macro def assume(condition: Boolean, clue: Any)(implicit prettifier: Prettifier, pos: Position): Assertion

macro def assume(condition: Boolean)(implicit prettifier: Prettifier, pos: Position): Assertion

def cancel(cause: Throwable)(implicit pos: Position): Nothing

def cancel(message: String, cause: Throwable)(implicit pos: Position): Nothing

def cancel(message: String)(implicit pos: Position): Nothing

def cancel()(implicit pos: Position): Nothing

def clone(): AnyRef

def convertEquivalenceToAToBConstraint[A, B](equivalenceOfB: Equivalence[B])(implicit ev: <:<[A, B]): CanEqual[A, B]

def convertEquivalenceToBToAConstraint[A, B](equivalenceOfA: Equivalence[A])(implicit ev: <:<[B, A]): CanEqual[A, B]

def convertToCheckingEqualizer[T](left: T): CheckingEqualizer[T]

implicit def convertToEqualizer[T](left: T): Equalizer[T]

def defaultEquality[A]: Equality[A]

final def eq(arg0: AnyRef): Boolean

def equals(arg0: Any): Boolean

def fail(cause: Throwable)(implicit pos: Position): Nothing

def fail(message: String, cause: Throwable)(implicit pos: Position): Nothing

def fail(message: String)(implicit pos: Position): Nothing

def fail()(implicit pos: Position): Nothing

def finalize(): Unit

final def getClass(): Class[_]

def hashCode(): Int

def intercept[T <: AnyRef](f: ⇒ Any)(implicit classTag: ClassTag[T], pos: Position): T

final def isInstanceOf[T0]: Boolean

def lowPriorityTypeCheckedConstraint[A, B](implicit equivalenceOfB: Equivalence[B], ev: <:<[A, B]): CanEqual[A, B]

final def ne(arg0: AnyRef): Boolean

final def notify(): Unit

final def notifyAll(): Unit

def pending: Assertion with PendingStatement

def pendingUntilFixed(f: ⇒ Unit)(implicit pos: Position): Assertion with PendingStatement

final val succeed: Assertion

final def synchronized[T0](arg0: ⇒ T0): T0

def toExceptionFunction(message: Option[String]): (StackDepthException) ⇒ Option[String]

def toString(): String

def typeCheckedConstraint[A, B](implicit equivalenceOfA: Equivalence[A], ev: <:<[B, A]): CanEqual[A, B]

implicit def unconstrainedEquality[A, B](implicit equalityOfA: Equality[A]): CanEqual[A, B]

final def wait(): Unit

final def wait(arg0: Long, arg1: Int): Unit

final def wait(arg0: Long): Unit

def withClue[T](clue: Any)(fun: ⇒ T): T

Deprecated Value Members

def conversionCheckedConstraint[A, B](implicit equivalenceOfA: Equivalence[A], cnv: (B) ⇒ A): CanEqual[A, B]

def convertEquivalenceToAToBConversionConstraint[A, B](equivalenceOfB: Equivalence[B])(implicit ev: (A) ⇒ B): CanEqual[A, B]

def convertEquivalenceToBToAConversionConstraint[A, B](equivalenceOfA: Equivalence[A])(implicit ev: (B) ⇒ A): CanEqual[A, B]

def lowPriorityConversionCheckedConstraint[A, B](implicit equivalenceOfB: Equivalence[B], cnv: (A) ⇒ B): CanEqual[A, B]

Inherited from VersionSpecificAssertionsForJUnit

Inherited from Assertions

Inherited from TripleEquals

Inherited from TripleEqualsSupport

Inherited from AnyRef

Inherited from Any

Ungrouped