From f6a4228e2d17fd554b88bcae512b966bc670f7b9 Mon Sep 17 00:00:00 2001
From: Giordon Stark <kratsg@gmail.com>
Date: Wed, 19 Sep 2018 16:18:57 -0700
Subject: [PATCH] make sure we always reset backends, even if we don't set them
 explicitly

---
 tests/conftest.py | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/tests/conftest.py b/tests/conftest.py
index 95cb280ee0..32fd1eedc0 100644
--- a/tests/conftest.py
+++ b/tests/conftest.py
@@ -2,6 +2,11 @@
 import pyhf
 import tensorflow as tf
 
+@pytest.fixture(scope='function', autouse=True)
+def reset_backend():
+    yield reset_backend
+    pyhf.set_backend(pyhf.default_backend)
+
 @pytest.fixture(scope='function', params=[
                              (pyhf.tensor.numpy_backend(),),
                              (pyhf.tensor.tensorflow_backend(session=tf.Session()),),
@@ -50,5 +55,3 @@ def backend(request):
         pyhf.tensorlib.session = tf.Session()
 
     yield request.param
-
-    pyhf.set_backend(pyhf.default_backend)