org.scalajs.junit.plugin

ScalaJSJUnitPlugin

class ScalaJSJUnitPlugin extends Plugin

The Scala.js jUnit plugin is a way to overcome the lack of annotation information of any test class (usually accessed through reflection). This is all the information required by the Scala.js testing framework to execute the tests.

As an example we take the following test class:

class Foo {
  @Before def before(): Unit = {
    // Initialize the instance before the tests
  }
  @Test def bar(): Unit = {
    // assert some stuff
  }
  @Ignore("baz not implemented yet") @Test def baz(): Unit = {
    // assert some other stuff
  }
}

object Foo {
  @BeforeClass def beforeClass(): Unit = {
    // Initialize some global state for the tests.
  }
}

Will generate the following bootstrapper module:

object Foo$scalajs$junit$bootstrapper extends org.scalajs.junit.JUnitTestBootstrapper {

def metadata(): JUnitClassMetadata = {
  new JUnitClassMetadata(
    classAnnotations = List(),
    moduleAnnotations = List(),
    classMethods = List(
        new JUnitMethodMetadata(name = "before",
            annotations = List(new Before)),
        new JUnitMethodMetadata(name = "bar",
            annotations = List(new Test)),
        new JUnitMethodMetadata(name = "baz",
            annotations = List(new Test, new Ignore("baz not implemented yet")))
    ),
    moduleMethods(
        new JUnitMethodMetadata(name = "beforeClass",
            annotations = List(new BeforeClass)))
  )
}

def newInstance(): AnyRef = new Foo()

def invoke(methodName: String): Unit = {
  if (methodName == "0") Foo.beforeClass()
  else throw new NoSuchMethodException(methodId)
}

def invoke(instance: AnyRef, methodName: String): Unit = {
  if (methodName == "before") instance.asInstanceOf[Foo].before()
  else if (methodName == "bar") instance.asInstanceOf[Foo].bar()
  else if (methodName == "baz") instance.asInstanceOf[Foo].baz()
  else throw new NoSuchMethodException(methodId)
}
}

The test framework will identify Foo$scalajs$junit$bootstrapper as a test module because it extends JUnitTestBootstrapper. It will know which methods to run based on the info returned by Foo$scalajs$junit$bootstrapper.metadata, it will create new test instances using Foo$scalajs$junit$bootstrapper.newInstance() and it will invoke test methods using invoke on the bootstrapper.

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Instance Constructors

  1. new ScalaJSJUnitPlugin(global: Global)

Value Members

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

    Definition Classes
    AnyRef

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

    Definition Classes
    Any

  3. final def ##(): Int

    Definition Classes
    AnyRef → Any

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

    Definition Classes
    AnyRef

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

    Definition Classes
    Any

  6. object ScalaJSJUnitPluginComponent extends PluginComponent with Transform with Compat210Component

  7. final def asInstanceOf[T0]: T0

    Definition Classes
    Any

  8. def clone(): AnyRef

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

  9. val components: List[PluginComponent]

    Definition Classes
    ScalaJSJUnitPlugin → Plugin

  10. val description: String

    Definition Classes
    ScalaJSJUnitPlugin → Plugin

  11. final def eq(arg0: AnyRef): Boolean

    Definition Classes
    AnyRef

  12. def equals(arg0: Any): Boolean

    Definition Classes
    AnyRef → Any

  13. def finalize(): Unit

    Attributes
    protected[java.lang]
    Definition Classes
    AnyRef
    Annotations
    @throws( classOf[java.lang.Throwable] )

  14. final def getClass(): Class[_]

    Definition Classes
    AnyRef → Any

  15. val global: Global

    Definition Classes
    ScalaJSJUnitPlugin → Plugin

  16. def hashCode(): Int

    Definition Classes
    AnyRef → Any

  17. final def isInstanceOf[T0]: Boolean

    Definition Classes
    Any

  18. val name: String

    Definition Classes
    ScalaJSJUnitPlugin → Plugin

  19. final def ne(arg0: AnyRef): Boolean

    Definition Classes
    AnyRef

  20. final def notify(): Unit

    Definition Classes
    AnyRef

  21. final def notifyAll(): Unit

    Definition Classes
    AnyRef

  22. val optionsHelp: Option[String]

    Definition Classes
    Plugin

  23. def processOptions(options: List[String], error: (String) ⇒ Unit): Unit

    Definition Classes
    Plugin

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

    Definition Classes
    AnyRef

  25. def toString(): String

    Definition Classes
    AnyRef → Any

  26. final def wait(): Unit

    Definition Classes
    AnyRef
    Annotations
    @throws( ... )

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

    Definition Classes
    AnyRef
    Annotations
    @throws( ... )

  28. final def wait(arg0: Long): Unit

    Definition Classes
    AnyRef
    Annotations
    @throws( ... )

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