org.scalatest

NonImplicitAssertions

trait NonImplicitAssertions extends Assertions

Trait that can be mixed into a Suite to disable the lone implicit conversion provided by default in trait Assertions, which trait Suite extends.

Currently there is just one implicit conversion provided by default in Suite, the one that adds a === method to anything. If more default implicits are added to Suite in future versions of ScalaTest, they will be added here as well so that this trait will disable all of them.

This trait can be used to quickly solve a problem in which ScalaTest's default implicit conversion is clashing with those of some other library you need to use in your tests. After mixing in this trait, like this:

class MySuite extends FunSuite with NonImplicitAssertions {
  // ... 
}

You can write tests using assert (without triple equals), expect, and intercept:

assert(a < 7)

expect(2) { 1 + 1 }

intercept[IndexOutOfBoundsException] {
  "hi".charAt(-1)
}

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Assertions, AnyRef, Any
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NonImplicitAssertions
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Type Members

  1. class Equalizer extends AnyRef

    Class used via an implicit conversion to enable any two objects to be compared with === in assertions in tests.

Value Members

  1. def != (arg0: AnyRef): Boolean

    Attributes
    final
    Definition Classes
    AnyRef

  2. def != (arg0: Any): Boolean

    Attributes
    final
    Definition Classes
    Any

  3. def ## (): Int

    Attributes
    final
    Definition Classes
    AnyRef → Any

  4. def == (arg0: AnyRef): Boolean

    Attributes
    final
    Definition Classes
    AnyRef

  5. def == (arg0: Any): Boolean

    Attributes
    final
    Definition Classes
    Any

  6. def asInstanceOf [T0] : T0

    Attributes
    final
    Definition Classes
    Any

  7. def assert (o: Option[String]): Unit

    Assert that an Option[String] is None.

    Assert that an Option[String] is None. If the condition is None, this method returns normally. Else, it throws TestFailedException with the String value of the Some included in the TestFailedException's detail message.

    This form of assert is usually called in conjunction with an implicit conversion to Equalizer, using a === comparison, as in:

    assert(a === b)

    For more information on how this mechanism works, see the documentation for Equalizer.

    o

    the Option[String] to assert

    Definition Classes
    Assertions

  8. def assert (o: Option[String], clue: Any): Unit

    Assert that an Option[String] is None.

    Assert that an Option[String] is None. If the condition is None, this method returns normally. Else, it throws TestFailedException with the String value of the Some, as well as the String obtained by invoking toString on the specified message, included in the TestFailedException's detail message.

    This form of assert is usually called in conjunction with an implicit conversion to Equalizer, using a === comparison, as in:

    assert(a === b, "extra info reported if assertion fails")

    For more information on how this mechanism works, see the documentation for Equalizer.

    o

    the Option[String] to assert

    clue

    An objects whose toString method returns a message to include in a failure report.

    Definition Classes
    Assertions

  9. def assert (condition: Boolean, clue: Any): Unit

    Assert that a boolean condition, described in String message, is true.

    Assert that a boolean condition, described in String message, is true. If the condition is true, this method returns normally. Else, it throws TestFailedException with the String obtained by invoking toString on the specified message as the exception's detail message.

    condition

    the boolean condition to assert

    clue

    An objects whose toString method returns a message to include in a failure report.

    Definition Classes
    Assertions

  10. def assert (condition: Boolean): Unit

    Assert that a boolean condition is true.

    Assert that a boolean condition is true. If the condition is true, this method returns normally. Else, it throws TestFailedException.

    condition

    the boolean condition to assert

    Definition Classes
    Assertions

  11. def clone (): AnyRef

    Attributes
    protected[lang]
    Definition Classes
    AnyRef
    Annotations
    @throws()

  12. def convertToEqualizer (right: Any): Equalizer

    Overrides the super implementation of convertToEqualizer, turning off the implicit modifier (if present) to remove the method from the space of implicit conversions.

    Overrides the super implementation of convertToEqualizer, turning off the implicit modifier (if present) to remove the method from the space of implicit conversions.

    Definition Classes
    NonImplicitAssertions → Assertions

  13. def eq (arg0: AnyRef): Boolean

    Attributes
    final
    Definition Classes
    AnyRef

  14. def equals (arg0: Any): Boolean

    Definition Classes
    AnyRef → Any

  15. def expect (expected: Any)(actual: Any): Unit

    Expect that the value passed as expected equals the value passed as actual.

    Expect that the value passed as expected equals the value passed as actual. If the actual value equals the expected value (as determined by ==), expect returns normally. Else, expect throws an TestFailedException whose detail message includes the expected and actual values.

    expected

    the expected value

    actual

    the actual value, which should equal the passed expected value

    Definition Classes
    Assertions

  16. def expect (expected: Any, clue: Any)(actual: Any): Unit

    Expect that the value passed as expected equals the value passed as actual.

    Expect that the value passed as expected equals the value passed as actual. If the actual equals the expected (as determined by ==), expect returns normally. Else, if actual is not equal to expected, expect throws an TestFailedException whose detail message includes the expected and actual values, as well as the String obtained by invoking toString on the passed message.

    expected

    the expected value

    clue

    An object whose toString method returns a message to include in a failure report.

    actual

    the actual value, which should equal the passed expected value

    Definition Classes
    Assertions

  17. def fail (cause: Throwable): Nothing

    Throws TestFailedException, with the passed Throwable cause, to indicate a test failed.

    Throws TestFailedException, with the passed Throwable cause, to indicate a test failed. The getMessage method of the thrown TestFailedException will return cause.toString().

    cause

    a Throwable that indicates the cause of the failure.

    Definition Classes
    Assertions

  18. def fail (message: String, cause: Throwable): Nothing

    Throws TestFailedException, with the passed String message as the exception's detail message and Throwable cause, to indicate a test failed.

    Throws TestFailedException, with the passed String message as the exception's detail message and Throwable cause, to indicate a test failed.

    message

    A message describing the failure.

    cause

    A Throwable that indicates the cause of the failure.

    Definition Classes
    Assertions

  19. def fail (message: String): Nothing

    Throws TestFailedException, with the passed String message as the exception's detail message, to indicate a test failed.

    Throws TestFailedException, with the passed String message as the exception's detail message, to indicate a test failed.

    message

    A message describing the failure.

    Definition Classes
    Assertions

  20. def fail (): Nothing

    Throws TestFailedException to indicate a test failed.

    Throws TestFailedException to indicate a test failed.

    Definition Classes
    Assertions

  21. def finalize (): Unit

    Attributes
    protected[lang]
    Definition Classes
    AnyRef
    Annotations
    @throws()

  22. def getClass (): java.lang.Class[_]

    Attributes
    final
    Definition Classes
    AnyRef

  23. def hashCode (): Int

    Definition Classes
    AnyRef → Any

  24. def intercept [T <: AnyRef] (f: ⇒ Any)(implicit manifest: Manifest[T]): T

    Intercept and return an exception that's expected to be thrown by the passed function value.

    Intercept and return an exception that's expected to be thrown by the passed function value. The thrown exception must be an instance of the type specified by the type parameter of this method. This method invokes the passed function. If the function throws an exception that's an instance of the specified type, this method returns that exception. Else, whether the passed function returns normally or completes abruptly with a different exception, this method throws TestFailedException.

    Note that the type specified as this method's type parameter may represent any subtype of AnyRef, not just Throwable or one of its subclasses. In Scala, exceptions can be caught based on traits they implement, so it may at times make sense to specify a trait that the intercepted exception's class must mix in. If a class instance is passed for a type that could not possibly be used to catch an exception (such as String, for example), this method will complete abruptly with a TestFailedException.

    f

    the function value that should throw the expected exception

    manifest

    an implicit Manifest representing the type of the specified type parameter.

    returns

    the intercepted exception, if it is of the expected type

    Definition Classes
    Assertions

  25. def isInstanceOf [T0] : Boolean

    Attributes
    final
    Definition Classes
    Any

  26. def ne (arg0: AnyRef): Boolean

    Attributes
    final
    Definition Classes
    AnyRef

  27. def notify (): Unit

    Attributes
    final
    Definition Classes
    AnyRef

  28. def notifyAll (): Unit

    Attributes
    final
    Definition Classes
    AnyRef

  29. def synchronized [T0] (arg0: ⇒ T0): T0

    Attributes
    final
    Definition Classes
    AnyRef

  30. def toString (): String

    Definition Classes
    AnyRef → Any

  31. def wait (): Unit

    Attributes
    final
    Definition Classes
    AnyRef
    Annotations
    @throws()

  32. def wait (arg0: Long, arg1: Int): Unit

    Attributes
    final
    Definition Classes
    AnyRef
    Annotations
    @throws()

  33. def wait (arg0: Long): Unit

    Attributes
    final
    Definition Classes
    AnyRef
    Annotations
    @throws()

  34. def withClue (clue: Any)(fun: ⇒ Unit): Unit

    Executes the block of code passed as the second parameter, and, if it completes abruptly with a ModifiableMessage exception, prepends the "clue" string passed as the first parameter to the beginning of the detail message of that thrown exception, then rethrows it.

    Executes the block of code passed as the second parameter, and, if it completes abruptly with a ModifiableMessage exception, prepends the "clue" string passed as the first parameter to the beginning of the detail message of that thrown exception, then rethrows it. If clue does not end in a white space character, one space will be added between it and the existing detail message (unless the detail message is not defined).

    This method allows you to add more information about what went wrong that will be reported when a test fails. Here's an example:

    withClue("(Employee's name was: " + employee.name + ")") {
  intercept[IllegalArgumentException] {
    employee.getTask(-1)
  }
}

    If an invocation of intercept completed abruptly with an exception, the resulting message would be something like:

    (Employee's name was Bob Jones) Expected IllegalArgumentException to be thrown, but no exception was thrown

    Definition Classes
    Assertions

Inherited from Assertions

Inherited from AnyRef

Inherited from Any