feat: Add support for suspending behavior

This change adds support for suspending behavior via Kotlin's coroutine
feature officially introduced in Kotlin 1.3. The syntax is similar to
the 1.x version of the simulator to allow for easier porting to 2.x.

1 files changed, 18 insertions, 1 deletions

diff --git a/odcsim-core/src/test/kotlin/com/atlarge/odcsim/ActorSystemTest.kt b/odcsim-core/src/test/kotlin/com/atlarge/odcsim/ActorSystemTest.kt
index 73b060b9..492dc686 100644
--- a/odcsim-core/src/test/kotlin/com/atlarge/odcsim/ActorSystemTest.kt
+++ b/odcsim-core/src/test/kotlin/com/atlarge/odcsim/ActorSystemTest.kt
@@ -250,7 +250,6 @@ abstract class ActorSystemTest {
                     Behavior.ignore()
                 }, "child")
 
-
                 Behavior.receive { ctx2, msg ->
                     assertTrue(ctx2.stop(child))
                     msg.send(Unit) // This actor should be stopped now and not receive the message anymore
@@ -332,5 +331,23 @@ abstract class ActorSystemTest {
             val system = factory(Behavior.stopped<Unit>(), "test")
             system.run()
         }
+
+        /**
+         * Test whether deferred behavior that returns [Behavior.Companion.same] fails.
+         */
+        @Test
+        fun `should not allow setup to return same`() {
+            val system = factory(Behavior.setup<Unit> { Behavior.same() }, "test")
+            assertThrows<IllegalArgumentException> { system.run() }
+        }
+
+        /**
+         * Test whether deferred behavior that returns [Behavior.Companion.unhandled] fails.
+         */
+        @Test
+        fun `should not allow setup to return unhandled`() {
+            val system = factory(Behavior.setup<Unit> { Behavior.unhandled() }, "test")
+            assertThrows<IllegalArgumentException> { system.run() }
+        }
     }
 }