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trait AssertionsForJUnit extends Assertions

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
Assertions, TripleEquals, TripleEqualsSupport, AnyRef, Any
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  1. AssertionsForJUnit
  2. Assertions
  3. TripleEquals
  4. TripleEqualsSupport
  5. AnyRef
  6. Any
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Type Members

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

Value Members

  1. final def !=(arg0: Any): Boolean
    Definition Classes
    AnyRef → Any
  2. def !==[T](right: Spread[T]): TripleEqualsInvocationOnSpread[T]
    Definition Classes
    TripleEqualsSupport
  3. def !==(right: Null): TripleEqualsInvocation[Null]
    Definition Classes
    TripleEqualsSupport
  4. def !==[T](right: T): TripleEqualsInvocation[T]
    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]
    Definition Classes
    TripleEqualsSupport
  8. def ===(right: Null): TripleEqualsInvocation[Null]
    Definition Classes
    TripleEqualsSupport
  9. def ===[T](right: T): TripleEqualsInvocation[T]
    Definition Classes
    TripleEqualsSupport
  10. final def asInstanceOf[T0]: T0
    Definition Classes
    Any
  11. macro def assert(condition: Boolean, clue: Any)(implicit prettifier: Prettifier, pos: Position): Assertion
    Definition Classes
    AssertionsForJUnit → Assertions
  12. macro def assert(condition: Boolean)(implicit prettifier: Prettifier, pos: Position): Assertion
    Definition Classes
    AssertionsForJUnit → Assertions
  13. macro def assertCompiles(code: String)(implicit pos: Position): Assertion
    Definition Classes
    Assertions
  14. macro def assertDoesNotCompile(code: String)(implicit pos: Position): Assertion
    Definition Classes
    Assertions
  15. def assertResult(expected: Any)(actual: Any)(implicit prettifier: Prettifier, pos: Position): Assertion
    Definition Classes
    Assertions
  16. def assertResult(expected: Any, clue: Any)(actual: Any)(implicit prettifier: Prettifier, pos: Position): Assertion
    Definition Classes
    Assertions
  17. def assertThrows[T <: AnyRef](f: ⇒ Any)(implicit classTag: ClassTag[T], pos: Position): Assertion
    Definition Classes
    Assertions
  18. macro def assertTypeError(code: String)(implicit pos: Position): Assertion
    Definition Classes
    Assertions
  19. macro def assume(condition: Boolean, clue: Any)(implicit prettifier: Prettifier, pos: Position): Assertion
    Definition Classes
    AssertionsForJUnit → Assertions
  20. macro def assume(condition: Boolean)(implicit prettifier: Prettifier, pos: Position): Assertion
    Definition Classes
    AssertionsForJUnit → Assertions
  21. def cancel(cause: Throwable)(implicit pos: Position): Nothing
    Definition Classes
    Assertions
  22. def cancel(message: String, cause: Throwable)(implicit pos: Position): Nothing
    Definition Classes
    Assertions
  23. def cancel(message: String)(implicit pos: Position): Nothing
    Definition Classes
    Assertions
  24. def cancel()(implicit pos: Position): Nothing
    Definition Classes
    Assertions
  25. def clone(): AnyRef
    Attributes
    protected[java.lang]
    Definition Classes
    AnyRef
    Annotations
    @native() @throws( ... )
  26. def convertEquivalenceToAToBConstraint[A, B](equivalenceOfB: Equivalence[B])(implicit ev: <:<[A, B]): CanEqual[A, B]
    Definition Classes
    TripleEquals → TripleEqualsSupport
  27. def convertEquivalenceToBToAConstraint[A, B](equivalenceOfA: Equivalence[A])(implicit ev: <:<[B, A]): CanEqual[A, B]
    Definition Classes
    TripleEquals → TripleEqualsSupport
  28. def convertToCheckingEqualizer[T](left: T): CheckingEqualizer[T]
    Definition Classes
    TripleEquals → TripleEqualsSupport
  29. implicit def convertToEqualizer[T](left: T): Equalizer[T]
    Definition Classes
    TripleEquals → TripleEqualsSupport
  30. def defaultEquality[A]: Equality[A]
    Definition Classes
    TripleEqualsSupport
  31. final def eq(arg0: AnyRef): Boolean
    Definition Classes
    AnyRef
  32. def equals(arg0: Any): Boolean
    Definition Classes
    AnyRef → Any
  33. def fail(cause: Throwable)(implicit pos: Position): Nothing
    Definition Classes
    Assertions
  34. def fail(message: String, cause: Throwable)(implicit pos: Position): Nothing
    Definition Classes
    Assertions
  35. def fail(message: String)(implicit pos: Position): Nothing
    Definition Classes
    Assertions
  36. def fail()(implicit pos: Position): Nothing
    Definition Classes
    Assertions
  37. def finalize(): Unit
    Attributes
    protected[java.lang]
    Definition Classes
    AnyRef
    Annotations
    @throws( classOf[java.lang.Throwable] )
  38. final def getClass(): Class[_]
    Definition Classes
    AnyRef → Any
    Annotations
    @native()
  39. def hashCode(): Int
    Definition Classes
    AnyRef → Any
    Annotations
    @native()
  40. def intercept[T <: AnyRef](f: ⇒ Any)(implicit classTag: ClassTag[T], pos: Position): T
    Definition Classes
    Assertions
  41. final def isInstanceOf[T0]: Boolean
    Definition Classes
    Any
  42. def lowPriorityTypeCheckedConstraint[A, B](implicit equivalenceOfB: Equivalence[B], ev: <:<[A, B]): CanEqual[A, B]
    Definition Classes
    TripleEquals → TripleEqualsSupport
  43. final def ne(arg0: AnyRef): Boolean
    Definition Classes
    AnyRef
  44. final def notify(): Unit
    Definition Classes
    AnyRef
    Annotations
    @native()
  45. final def notifyAll(): Unit
    Definition Classes
    AnyRef
    Annotations
    @native()
  46. def pending: Assertion with PendingStatement
    Definition Classes
    Assertions
  47. def pendingUntilFixed(f: ⇒ Unit)(implicit pos: Position): Assertion with PendingStatement
    Definition Classes
    Assertions
  48. final val succeed: Assertion
    Definition Classes
    Assertions
  49. final def synchronized[T0](arg0: ⇒ T0): T0
    Definition Classes
    AnyRef
  50. 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.

  51. def toString(): String
    Definition Classes
    AnyRef → Any
  52. def typeCheckedConstraint[A, B](implicit equivalenceOfA: Equivalence[A], ev: <:<[B, A]): CanEqual[A, B]
    Definition Classes
    TripleEquals → TripleEqualsSupport
  53. implicit def unconstrainedEquality[A, B](implicit equalityOfA: Equality[A]): CanEqual[A, B]
    Definition Classes
    TripleEquals → TripleEqualsSupport
  54. final def wait(): Unit
    Definition Classes
    AnyRef
    Annotations
    @throws( ... )
  55. final def wait(arg0: Long, arg1: Int): Unit
    Definition Classes
    AnyRef
    Annotations
    @throws( ... )
  56. final def wait(arg0: Long): Unit
    Definition Classes
    AnyRef
    Annotations
    @native() @throws( ... )
  57. def withClue[T](clue: Any)(fun: ⇒ T): T
    Definition Classes
    Assertions

Deprecated Value Members

  1. 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.

  2. 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.

  3. 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.

  4. 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.

Inherited from Assertions

Inherited from TripleEquals

Inherited from TripleEqualsSupport

Inherited from AnyRef

Inherited from Any

Ungrouped