Using JUnit @Rule with ScalaTest (e.g. TemporaryFolder)

Question

I would like to be able to use JUnit rules such as TemporaryFolder or other TestRules we have already developed in-house. What is the best method

Answer 1

You could solve the problem by creating a member field of type TemporaryFolder and returning this field value by the @Rule function.

class MyTest extends JUnitSuite {

  val _temporaryFolder = new TemporaryFolder

  @Rule
  def temporaryFolder = _temporaryFolder

  @Test
  def test: Unit = {
    assert(temporaryFolder.newFile() !== null)
  }
}