From b2080f65544093c8f07b4ecc43fe035aeb08c8f0 Mon Sep 17 00:00:00 2001
From: "Eric V. Smith" <eric@trueblade.com>
Date: Wed, 23 Sep 2015 10:24:43 -0400
Subject: f-strings: More tests for empty expressions along with missing
 closing braces.

---
 Lib/test/test_fstring.py | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/Lib/test/test_fstring.py b/Lib/test/test_fstring.py
index 10c5849..d6f781c 100644
--- a/Lib/test/test_fstring.py
+++ b/Lib/test/test_fstring.py
@@ -299,6 +299,13 @@ f'{a * x()}'"""
 
                              "f'{!}'",
                              "f'{:}'",
+
+                             # We find the empty expression before the
+                             #  missing closing brace.
+                             "f'{!'",
+                             "f'{!s:'",
+                             "f'{:'",
+                             "f'{:x'",
                              ])
 
     def test_parens_in_expressions(self):
-- 
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