CharsetTest.scala

import org.scalatest.matchers.ShouldMatchers
import org.scalatest.FunSuite
import javax.servlet.http.{HttpServletResponse, HttpServletRequest, HttpServlet}
import java.net.URLEncoder
import org.mortbay.jetty.testing.{HttpTester, ServletTester}

class CharsetServlet extends HttpServlet {
  override def doGet(req: HttpServletRequest, res: HttpServletResponse) = {
    val foo = req.getParameter("foo")
    res.setContentType("text/plain; charset=utf-8")
    res.getWriter.write(foo)
  }
}

class CharsetTest extends FunSuite with ShouldMatchers {
  val tester = new ServletTester
  tester.addServlet(classOf[CharsetServlet], "/*")
  tester.start

  val russianAlphabet = "абвгдеёжзийклмнопрстуфхцчшщъыьэюя"

  test("GET handles UTF-8") {
    val req = new HttpTester
    req.setVersion("HTTP/1.0")
    req.setURI("/?foo="+URLEncoder.encode(russianAlphabet, "UTF-8"))
    req.setMethod("GET")

    val res = new HttpTester
    res.parse(tester.getResponses(req.generate))
    res.getContent should equal (russianAlphabet)
  }
}