From 0977fd0dff91134c5e26f83233371d4d222de45f Mon Sep 17 00:00:00 2001
From: Matt <matthew.morley.ca@gmail.com>
Date: Sat, 16 Oct 2021 09:42:21 -0400
Subject: [PATCH] Update PacketTest.java (#301)

Adds unit test to make sure the packet structure doesn't change
---
 .../java/org/photonvision/PacketTest.java     | 25 +++++++++++++++++++
 1 file changed, 25 insertions(+)

diff --git a/photon-lib/src/test/java/org/photonvision/PacketTest.java b/photon-lib/src/test/java/org/photonvision/PacketTest.java
index 1574ccf72..0b4d5a7f3 100644
--- a/photon-lib/src/test/java/org/photonvision/PacketTest.java
+++ b/photon-lib/src/test/java/org/photonvision/PacketTest.java
@@ -95,4 +95,29 @@ class PacketTest {
 
         Assertions.assertEquals(t, target);
     }
+
+    @Test
+    void testPacketv2021_1_6() {
+        // From v2021.1.6
+        var simplified =
+                new PhotonPipelineResult(
+                        12.34,
+                        List.of(
+                                new PhotonTrackedTarget(
+                                        -23, -10, 6, 1, new Transform2d(new Translation2d(1, 2), new Rotation2d(3)))));
+        byte[] bytes = {
+            64, 40, -82, 20, 122, -31, 71, -82, 1, -64, 55, 0, 0, 0, 0, 0, 0, -64, 36, 0, 0, 0, 0, 0, 0,
+            64, 24, 0, 0, 0, 0, 0, 0, 63, -16, 0, 0, 0, 0, 0, 0, 63, -16, 0, 0, 0, 0, 0, 0, 64, 0, 0, 0,
+            0, 0, 0, 0, 64, 101, 124, 101, 19, -54, -47, 122, 0
+        };
+
+        // Let's check that those bytes still mean the same thing
+        Packet packet = new Packet(1);
+        packet.clear();
+        packet.setData(bytes);
+        var ret = new PhotonPipelineResult();
+        ret.createFromPacket(packet);
+        System.out.println(ret);
+        Assertions.assertEquals(simplified, ret);
+    }
 }