From fa0fc535a149a35f4a69b4e082b1a8cccad0d002 Mon Sep 17 00:00:00 2001
From: Jonathan Beilin <jbeilin@gmail.com>
Date: Mon, 17 Dec 2012 10:31:00 -0800
Subject: [PATCH] Adding assertion for empty data in
 -appendPartWithHeaders:body:

---
 AFNetworking/AFHTTPClient.m | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/AFNetworking/AFHTTPClient.m b/AFNetworking/AFHTTPClient.m
index 502c587..dd89721 100644
--- a/AFNetworking/AFHTTPClient.m
+++ b/AFNetworking/AFHTTPClient.m
@@ -851,6 +851,8 @@ NSTimeInterval const kAFUploadStream3GSuggestedDelay = 0.2;
 - (void)appendPartWithHeaders:(NSDictionary *)headers
                          body:(NSData *)body
 {
+    NSParameterAssert(body);
+    
     AFHTTPBodyPart *bodyPart = [[AFHTTPBodyPart alloc] init];
     bodyPart.stringEncoding = self.stringEncoding;
     bodyPart.headers = headers;