From d49c47bfb0ea3bc2e7d8778d8002c0f628d97488 Mon Sep 17 00:00:00 2001
From: Guido van Rossum <guido@dropbox.com>
Date: Sat, 19 Oct 2013 21:26:34 -0700
Subject: [PATCH] Break out of loop on EOF in asyncio echo test programs.

---
 Lib/test/test_asyncio/echo.py  | 2 ++
 Lib/test/test_asyncio/echo3.py | 2 ++
 2 files changed, 4 insertions(+)

diff --git a/Lib/test/test_asyncio/echo.py b/Lib/test/test_asyncio/echo.py
index f6ac0a30d34..006364bb007 100644
--- a/Lib/test/test_asyncio/echo.py
+++ b/Lib/test/test_asyncio/echo.py
@@ -3,4 +3,6 @@
 if __name__ == '__main__':
     while True:
         buf = os.read(0, 1024)
+        if not buf:
+            break
         os.write(1, buf)
diff --git a/Lib/test/test_asyncio/echo3.py b/Lib/test/test_asyncio/echo3.py
index f1f7ea7c9e2..064496736bf 100644
--- a/Lib/test/test_asyncio/echo3.py
+++ b/Lib/test/test_asyncio/echo3.py
@@ -3,6 +3,8 @@
 if __name__ == '__main__':
     while True:
         buf = os.read(0, 1024)
+        if not buf:
+            break
         try:
             os.write(1, b'OUT:'+buf)
         except OSError as ex: