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package xyz.driver.core.rest
import akka.http.scaladsl.marshallers.sprayjson.SprayJsonSupport
import akka.http.scaladsl.model._
import akka.http.scaladsl.model.headers.`Content-Type`
import akka.http.scaladsl.server.{Directives, Route}
import akka.http.scaladsl.testkit.ScalatestRouteTest
import org.scalatest.{FlatSpec, Matchers}
import spray.json._
import xyz.driver.core.{Id, Name}
import xyz.driver.core.json._
import scala.concurrent.Future
class PatchDirectivesTest
extends FlatSpec with Matchers with ScalatestRouteTest with SprayJsonSupport with DefaultJsonProtocol
with Directives with PatchDirectives {
case class Bar(name: Name[Bar], size: Int)
case class Foo(id: Id[Foo], name: Name[Foo], rank: Int, bar: Option[Bar])
implicit val barFormat: RootJsonFormat[Bar] = jsonFormat2(Bar)
implicit val fooFormat: RootJsonFormat[Foo] = jsonFormat4(Foo)
val testFoo: Foo = Foo(Id("1"), Name(s"Foo"), 1, Some(Bar(Name("Bar"), 10)))
def route(retrieve: => Future[Option[Foo]]): Route =
Route.seal(path("api" / "v1" / "foos" / IdInPath[Foo]) { fooId =>
entity(as[Patchable[Foo]]) { fooPatchable =>
mergePatch(fooPatchable, retrieve) { updatedFoo =>
complete(updatedFoo)
}
}
})
val MergePatchContentType = ContentType(`application/merge-patch+json`)
val ContentTypeHeader = `Content-Type`(MergePatchContentType)
def jsonEntity(json: String, contentType: ContentType.NonBinary = MergePatchContentType): RequestEntity =
HttpEntity(contentType, json)
"PatchSupport" should "allow partial updates to an existing object" in {
val fooRetrieve = Future.successful(Some(testFoo))
Patch("/api/v1/foos/1", jsonEntity("""{"rank": 4}""")) ~> route(fooRetrieve) ~> check {
handled shouldBe true
responseAs[Foo] shouldBe testFoo.copy(rank = 4)
}
}
it should "merge deeply nested objects" in {
val fooRetrieve = Future.successful(Some(testFoo))
Patch("/api/v1/foos/1", jsonEntity("""{"rank": 4, "bar": {"name": "My Bar"}}""")) ~> route(fooRetrieve) ~> check {
handled shouldBe true
responseAs[Foo] shouldBe testFoo.copy(rank = 4, bar = Some(Bar(Name("My Bar"), 10)))
}
}
it should "return a 404 if the object is not found" in {
val fooRetrieve = Future.successful(None)
Patch("/api/v1/foos/1", jsonEntity("""{"rank": 4}""")) ~> route(fooRetrieve) ~> check {
handled shouldBe true
status shouldBe StatusCodes.NotFound
}
}
it should "handle nulls on optional values correctly" in {
val fooRetrieve = Future.successful(Some(testFoo))
Patch("/api/v1/foos/1", jsonEntity("""{"bar": null}""")) ~> route(fooRetrieve) ~> check {
handled shouldBe true
responseAs[Foo] shouldBe testFoo.copy(bar = None)
}
}
it should "handle optional values correctly when old value is null" in {
val fooRetrieve = Future.successful(Some(testFoo.copy(bar = None)))
Patch("/api/v1/foos/1", jsonEntity("""{"bar": {"name": "My Bar","size":10}}""")) ~> route(fooRetrieve) ~> check {
handled shouldBe true
responseAs[Foo] shouldBe testFoo.copy(bar = Some(Bar(Name("My Bar"), 10)))
}
}
it should "return a 400 for nulls on non-optional values" in {
val fooRetrieve = Future.successful(Some(testFoo))
Patch("/api/v1/foos/1", jsonEntity("""{"rank": null}""")) ~> route(fooRetrieve) ~> check {
handled shouldBe true
status shouldBe StatusCodes.BadRequest
}
}
it should "return a 415 for incorrect Content-Type" in {
val fooRetrieve = Future.successful(Some(testFoo))
Patch("/api/v1/foos/1", jsonEntity("""{"rank": 4}""", ContentTypes.`application/json`)) ~> route(fooRetrieve) ~> check {
status shouldBe StatusCodes.UnsupportedMediaType
responseAs[String] should include("application/merge-patch+json")
}
}
}
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