From 0b233d1002d566e8624d0126f5abe86b384ef153 Mon Sep 17 00:00:00 2001
From: Rodrigo Palhares <1131748+rodrigopalhares@users.noreply.github.com>
Date: Sat, 19 Jan 2019 23:16:13 -0200
Subject: [PATCH] Update monix 3.0.0-RC2

---
 build.sbt                                            |  4 ++--
 src/main/scala/sangria/streaming/monix.scala         | 12 ++++++++----
 .../sangria/streaming/MonixIntegrationSpec.scala     |  6 +++---
 3 files changed, 13 insertions(+), 9 deletions(-)

diff --git a/build.sbt b/build.sbt
index 4977062..d72a7a2 100644
--- a/build.sbt
+++ b/build.sbt
@@ -20,8 +20,8 @@ scalacOptions ++= {
 
 libraryDependencies ++= Seq(
   "org.sangria-graphql" %% "sangria-streaming-api" % "1.0.0",
-  "io.monix" %% "monix-execution" % "2.1.2",
-  "io.monix" %% "monix-reactive" % "2.1.2",
+  "io.monix" %% "monix-execution" % "3.0.0-RC2",
+  "io.monix" %% "monix-reactive" % "3.0.0-RC2",
   "org.scalatest" %% "scalatest" % "3.0.1" % "test"
 )
 
diff --git a/src/main/scala/sangria/streaming/monix.scala b/src/main/scala/sangria/streaming/monix.scala
index 027588c..ea856a6 100644
--- a/src/main/scala/sangria/streaming/monix.scala
+++ b/src/main/scala/sangria/streaming/monix.scala
@@ -1,9 +1,10 @@
 package sangria.streaming
 
 import scala.language.higherKinds
-
 import _root_.monix.execution.Scheduler
 import _root_.monix.reactive._
+import _root_.monix.eval.Task
+import cats.effect.ExitCase
 
 import scala.concurrent.Future
 
@@ -22,19 +23,22 @@ object monix {
       source.mergeMap(a ⇒ Observable.fromFuture(fn(a)))
 
     def first[T](s: Observable[T]) =
-      s.firstOrElseL(throw new IllegalStateException("Promise was not completed - observable haven't produced any elements.")).runAsync
+      s.firstOrElseL(throw new IllegalStateException("Promise was not completed - observable haven't produced any elements.")).runToFuture
 
     def failed[T](e: Throwable) = Observable.raiseError(e)
 
     def onComplete[Ctx, Res](result: Observable[Res])(op: ⇒ Unit) =
-      result.doOnTerminate(op)
+      result.guaranteeCase {
+        case ExitCase.Error(e) => Task(op)
+        case _ => Task(op)
+      }
 
     def flatMapFuture[Ctx, Res, T](future: Future[T])(resultFn: T ⇒ Observable[Res]) =
       Observable.fromFuture(future).mergeMap(resultFn)
 
     def merge[T](streams: Vector[Observable[T]]) =
       if (streams.nonEmpty)
-        Observable.merge(streams: _*)
+        Observable(streams: _*).merge
       else
         throw new IllegalStateException("No streams produced!")
 
diff --git a/src/test/scala/sangria/streaming/MonixIntegrationSpec.scala b/src/test/scala/sangria/streaming/MonixIntegrationSpec.scala
index 54d807d..7b526ae 100644
--- a/src/test/scala/sangria/streaming/MonixIntegrationSpec.scala
+++ b/src/test/scala/sangria/streaming/MonixIntegrationSpec.scala
@@ -58,7 +58,7 @@ class MonixIntegrationSpec extends WordSpec with Matchers {
       subj.onNext(2)
       subj.onComplete()
 
-      Await.ready(updated.toListL.runAsync, 2 seconds)
+      Await.ready(updated.toListL.runToFuture, 2 seconds)
 
       count.get() should be (1)
     }
@@ -72,7 +72,7 @@ class MonixIntegrationSpec extends WordSpec with Matchers {
 
       subj.onError(new IllegalStateException("foo"))
 
-      Await.ready(updated.toListL.runAsync, 2 seconds)
+      Await.ready(updated.toListL.runToFuture, 2 seconds)
 
       count.get() should be (1)
     }
@@ -138,7 +138,7 @@ class MonixIntegrationSpec extends WordSpec with Matchers {
   }
 
   def res[T](obs: Observable[T]) =
-    Await.result(obs.toListL.runAsync, 2 seconds)
+    Await.result(obs.toListL.runToFuture, 2 seconds)
 
   def res[T](f: Future[T]) =
     Await.result(f, 2 seconds)