From 8683e3a1ffebfff4b9bd93a829c7d0dd4a4bb94c Mon Sep 17 00:00:00 2001
From: Benoit Pierre <benoit.pierre@gmail.com>
Date: Tue, 13 Jun 2017 05:28:16 +0200
Subject: [PATCH] add test for #889

---
 setuptools/tests/test_config.py | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/setuptools/tests/test_config.py b/setuptools/tests/test_config.py
index 8bd2a494281..12eb8be523b 100644
--- a/setuptools/tests/test_config.py
+++ b/setuptools/tests/test_config.py
@@ -288,6 +288,16 @@ def test_classifiers(self, tmpdir):
         with get_dist(tmpdir) as dist:
             assert set(dist.metadata.classifiers) == expected
 
+    @pytest.mark.xfail
+    def test_no_interpolation(self, tmpdir):
+        fake_env(
+            tmpdir,
+            '[metadata]\n'
+            'description = %(message)s\n'
+        )
+        with get_dist(tmpdir) as dist:
+            assert dist.metadata.description == '%(message)s'
+
 
 class TestOptions: