From 6b5152ae131ea2bd15f6c998de223b72b0c9e65d Mon Sep 17 00:00:00 2001
From: Tomer Keren <tomer.keren.dev@gmail.com>
Date: Sat, 13 Apr 2019 18:58:38 +0300
Subject: [PATCH] Sanity tests for loop unrolling

---
 testing/test_assertrewrite.py | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/testing/test_assertrewrite.py b/testing/test_assertrewrite.py
index 72bfbcc55..c22ae7c6e 100644
--- a/testing/test_assertrewrite.py
+++ b/testing/test_assertrewrite.py
@@ -656,6 +656,12 @@ class TestAssertionRewrite(object):
         else:
             assert lines == ["assert 0 == 1\n +  where 1 = \\n{ \\n~ \\n}.a"]
 
+    def test_all_unroll(self):
+        def f():
+            assert all(x == 1 for x in range(10))
+
+        assert "0 != 1" in getmsg(f)
+
     def test_custom_repr_non_ascii(self):
         def f():
             class A(object):