From 6d3f62453edd651deff23bc9d76af558a2eae76d Mon Sep 17 00:00:00 2001
From: Matthew Chen <matthew@signal.org>
Date: Wed, 17 Oct 2018 10:09:13 -0400
Subject: [PATCH] Add asserts around group id length.

---
 SignalServiceKit/src/Messages/TSGroupModel.m | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/SignalServiceKit/src/Messages/TSGroupModel.m b/SignalServiceKit/src/Messages/TSGroupModel.m
index f8dd5438c..fd30dd6c1 100644
--- a/SignalServiceKit/src/Messages/TSGroupModel.m
+++ b/SignalServiceKit/src/Messages/TSGroupModel.m
@@ -27,6 +27,7 @@ const int32_t kGroupIdLength = 16;
                       groupId:(NSData *)groupId
 {
     OWSAssertDebug(memberIds);
+    OWSAssertDebug(groupId.length == kGroupIdLength);
 
     _groupName              = title;
     _groupMemberIds         = [memberIds copy];
@@ -48,6 +49,7 @@ const int32_t kGroupIdLength = 16;
     if (_groupMemberIds == nil) {
         _groupMemberIds = [NSArray new];
     }
+    OWSAssertDebug(self.groupId.length == kGroupIdLength);
 
     return self;
 }