From 90998fabf37a4f745373edec73db1ac8e5789522 Mon Sep 17 00:00:00 2001
From: Kovid Goyal <kovid@kovidgoyal.net>
Date: Wed, 30 Jan 2019 21:55:39 +0530
Subject: [PATCH] Add a test to ensure msgpack can handle large binary payloads

---
 src/calibre/test_build.py | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/src/calibre/test_build.py b/src/calibre/test_build.py
index de4d0cdb2a..162354dd4d 100644
--- a/src/calibre/test_build.py
+++ b/src/calibre/test_build.py
@@ -113,6 +113,8 @@ class BuildTest(unittest.TestCase):
             self.assertEqual(obj, msgpack_loads(s))
         self.assertEqual(type(msgpack_loads(msgpack_dumps(b'b'))), bytes)
         self.assertEqual(type(msgpack_loads(msgpack_dumps(u'b'))), type(u''))
+        large = b'x' * (100 * 1024 * 1024)
+        msgpack_loads(msgpack_dumps(large))
 
     @unittest.skipUnless(isosx, 'FSEvents only present on OS X')
     def test_fsevents(self):