Running Scalatra Tests with JUnit (in a maven or ant build)

I’ve been playing around with Scalatra and one of the things that wasn’t quite obvious was when I had it running as part of a test run build (using the JUnit) runner, these tests weren’t getting picked up.

The key to this was ensuring you annotate the class with the @RunWith(classOf[JUnitRunner]) attribute as part of the build.

package com.thekua.scala.example

import org.scalatra.test.scalatest.ScalatraFunSuite
import org.scalatest.matchers.ShouldMatchers
import org.scalatest.junit.{JUnitRunner, JUnitSuite}
import org.junit.runner.RunWith

@RunWith(classOf[JUnitRunner])
class JsonScalatraTest extends ScalatraFunSuite with ShouldMatchers {
  val servletHolder = addServlet(classOf[JsonifiedServlet], "/*")
  servletHolder.setInitOrder(1) // force load on startup

  test("JSON support test") {
    get("/") {
      status should equal (200)
    }
  }
}