can't run tests with same name multiple times

[unkarjedy]

JUnit supports running tests with the same fully-qualified name several times.
It can be achieved by using some non-standard built-in runners or some custom runners.

Here is the easiest example of such test using org.junit.runners.Suite

build.sbt

name := "junit-with-sbt"
version := "0.1"
scalaVersion := "2.13.6"
// NOTE: by default junit-interface ignores `org.junit.runners.Suite`, we need to disable it
Test / testOptions += Tests.Argument( "--verbosity=3", "--ignore-runners=")
libraryDependencies += ("com.novocode" % "junit-interface" % "0.11" % Test).withSources()

MyCompositeTest.scala:

package example

import junit.framework.{TestCase, TestSuite}
import org.junit.Assert.fail
import org.junit.runner.RunWith
import org.junit.runners.Suite.SuiteClasses

@RunWith(classOf[org.junit.runners.Suite])
@SuiteClasses(Array(
  classOf[example.MyActualTest],
  classOf[example.MyActualTest],
  classOf[example.MyActualTest]
))
class MyCompositeTest extends TestSuite

class MyActualTest extends TestCase {
  def test1_Success(): Unit = {
    println("running success test")
  }

  def test2_Failed(): Unit = {
    println("running failed test")
    fail("some reason")
  }
}

Note that in practice, those tests can have different contexts but have the same name.

Intellij IDEA, for example, successfully runs such tests:
(note, that in total, there were 6 tests run.

And thisis what testOnly example.MyCompositeTest outputs:

[unkarjedy]

I will prepare a PR with a fix soon