initial debug draw packet; data for the tests are entirely fabricated as we have no instances of this packet in the wild (#1170)

src/test/scala/game/DebugDrawMessageTest.scala

@@ -0,0 +1,36 @@
+// Copyright (c) 2024 PSForever
+package game
+
+import net.psforever.packet.PacketCoding
+import net.psforever.packet.game.DebugDrawMessage
+import net.psforever.types.Vector3
+import org.specs2.mutable.Specification
+import scodec.bits._
+
+class DebugDrawMessageTest extends Specification {
+  val string = hex"9c2040000000600000008000001c0010000186000800c8000f04008807d00016080578"
+
+  "decode" in {
+    PacketCoding.decodePacket(string).require match {
+      case DebugDrawMessage(u1, u2, u3, u4, u5) =>
+        u1 mustEqual 1
+        u2 mustEqual 2L
+        u3 mustEqual 3L
+        u4 mustEqual 4L
+        u5 mustEqual List(
+          Vector3(5,6,7),
+          Vector3(50,60,70),
+          Vector3(500,600,700)
+        )
+      case _ =>
+        ko
+    }
+  }
+
+  "encode" in {
+    val msg = DebugDrawMessage(1, 2L, 3L, 4L, List(Vector3(5,6,7), Vector3(50,60,70), Vector3(500,600,700)))
+    val pkt = PacketCoding.encodePacket(msg).require.toByteVector
+
+    pkt mustEqual string
+  }
+}