gistfile1.scala

case class TestRequestHeader(headers: Headers, method: String = "GET", uri: String = "/", path: String = "", remoteAddress: String = "127.0.0.1", version: String = "HTTP/1.1", id: Long = 666, tags: Map[String, String] = Map.empty[String, String], queryString: Map[String, Seq[String]] = Map(), secure: Boolean = false) extends RequestHeader

val rh = TestRequestHeader(headers = new Headers {
  val data = Seq(play.api.http.HeaderNames.CONTENT_TYPE -> Seq("""multipart/form-data; boundary=----68766594719920667221395339924"""), play.api.http.HeaderNames.CONTENT_LENGTH -> Seq("380"))
})
      
val multipartFormData = BodyParsers.parse.multipartFormData
      
val testStr = """Content-Type: multipart/form-data; boundary=---------------------------68766594719920667221395339924
Content-Length: 380

-----------------------------68766594719920667221395339924
Content-Disposition: form-data; name="picture"; filename="README"
Content-Type: application/octet-stream

This is your new Play application
=====================================

This file will be packaged with your application, when using `play dist`.

-----------------------------68766594719920667221395339924--
"""        

val enumerator = Enumerator(testStr.getBytes)
val iteratee = multipartFormData(rh)
val fResult = enumerator run iteratee
val result = Await.result(fResult, Duration("5 seconds"))