From a2ac50f1572edd52ac8002a7b03db58a8babf4da Mon Sep 17 00:00:00 2001
From: Armin Ronacher <armin.ronacher@active-4.com>
Date: Thu, 30 Jan 2020 18:16:38 +0100
Subject: [PATCH] Added regression test for slicing of attributes

---
 tests/test_async.py | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/tests/test_async.py b/tests/test_async.py
index f7e27922e..5f6e073a4 100644
--- a/tests/test_async.py
+++ b/tests/test_async.py
@@ -579,3 +579,7 @@ def test_nonrecursive_loop_filter(self, test_env_async):
     def test_bare_async(self, test_env_async):
         t = test_env_async.from_string('{% extends "header" %}')
         assert t.render(foo=42) == "[42|23]"
+
+    def test_awaitable_property_slicing(self, test_env_async):
+        t = test_env_async.from_string('{% for x in a.b[:1] %}{{ x }}{% endfor %}')
+        assert t.render(a=dict(b=[1, 2, 3])) == "1"